toner cartridge for use in an imaging device

专利摘要:
Summary "Toner Cartridge for Use in an Imaging Device" is a toner cartridge according to an example embodiment including a housing defining a reservoir for holding the toner. an outlet port in fluid communication with the reservoir faces downwardly in front of the housing near a first side. a shutter positioned in the outlet port is movable between an open position and a closed position. A toner release system for transferring toner from the reservoir includes a main interface gear exposed on the front of the housing near the top of the second side. a rearwardly opening aperture is positioned near the first side of the housing for receiving a first engagement feature in an image forming device for opening and closing the shutter. a forward slit is positioned near the first side of the housing for receiving a second engaging feature in the imaging device for locking and unlocking the shutter.
公开号:BR112014012764B1
申请号:R112014012764-6
申请日:2012-11-15
公开日:2018-11-06
发明作者:Benjer Albaran Acosta；Mark William Amann；James Anthany Carter；Gary Neal Hackney；Katrina Rosit Lactuan；James Richard Leemhuis；Benjamin Keith Newman；Matthew Lee Rogers；Rodney Evan Sproul；Jason Hale；Harald Portig；Keith Seaman；Bryan Christopher Scharf；Christopher Gene Vowels
申请人:Lexmark International, Inc；
IPC主号:

专利说明:

(54) Title: TONER CARTRIDGE FOR USE IN AN IMAGE FORMATION DEVICE (51) Int.CI .: G03G 15/08.
(30) Unionist Priority: 12/30/2011 US 13 / 340,935.
(73) Holder (s): LEXMARK INTERNATIONAL, INC.
(72) Inventor (s): BENJER ALBARAN ACOSTA; MATTHEW LEE ROGERS; BRYAN CHRISTOPHER SCHARF; GARY NEAL HACKNEY; KATRINA ROSIT LACTUAN; KEITH SEAMAN; CHRISTOPHER GENE VOWELS; MARK WILLIAM AMANN; JAMES ANTHANY CARTER; JAMES RICHARD LEEMHUIS; BENJAMIN KEITH NEWMAN; RODNEY EVAN SPROUL; JASON HALE; HARALD PORTIG.
(86) PCT Application: PCT US2012065149 of 11/15/2012 (87) PCT Publication: WO 2013/101350 of 04/07/2013 (85) Date of the Beginning of the National Phase: 27/05/2014 (57) Summary: SUMMARY TONER CARTRIDGE FOR USE IN AN IMAGE FORMATION DEVICE This is a toner cartridge according to an example modality that includes a housing that defines a reservoir to contain the toner. An outlet port in fluid communication with the reservoir faces downwards in front of the housing close to the first side. A shutter positioned on the exit door is movable between an open position and a closed position. A toner release system for transferring toner from the reservoir includes a main interface gear exposed in front of the housing near the top of the second side. A rear-facing opening is positioned close to the first side of the housing for receiving a first engagement feature in an image forming device to open and close the shutter. A forward-facing slot is positioned close to the first side of the housing to receive a second engagement feature on the image forming device to lock and unlock the shutter.
1/38
TONER CARTRIDGE FOR USE ON AN IMAGE FORMATION DEVICE
FUNDAMENTALS
1. FIELD OF DESCRIPTION [001] The present description refers to a toner cartridge for use in an electrophotographic imaging device.
2. DESCRIPTION OF RELATED TECHNIQUE [002] In order to reduce the premature replacement of components traditionally housed within a toner cartridge for an imaging device, toner cartridge manufacturers have begun to separate components that have a longer life for those who have a shorter life in separate replaceable units. Components with relatively longer life, such as a developer cylinder, a toner addition cylinder, a metering blade and a photoconductive drum are positioned in a replaceable unit (an “image forming unit”). The toner supply of the imaging device, which is consumed relatively quickly compared to the components housed in the imaging unit, is supplied in a reservoir in a separate replaceable unit in the form of a toner cartridge that couples with the imaging unit. In this configuration, the number of components housed in the toner cartridge is reduced compared to traditional toner cartridges. As a result of this, in systems using a toner cartridge and separate imaging unit, the toner cartridge is often referred to as a “toner bottle”, even though the toner cartridge is more complex than a simple bottle to contain the toner.
[003] To release the toner from the toner cartridge to the imaging unit, a thread on the toner cartridge can be used to feed the toner to
2/38 from an output port on the toner cartridge to an input port on the imaging unit and on a second thread that disperses the toner inside the imaging unit. As the toner is extracted from the toner cartridge, it is moved through a plug used to seal the toner cartridge's output port when it is not inserted into the printer. In order to prevent unwanted toner release, the shutter is preferably closed except when the toner cartridge is installed in the imaging device. Consequently, the shutter can be activated towards the closed position. As the toner cartridge reaches its final position on the imaging device, a pin or other type of projection on the imaging device can engage a tongue on the toner cartridge and provide the opposite force to open the shutter. For example, patent no. U.S. 7,606,520, entitled "Shutter for a Toner Cartridge for use with an Image Forming Device" and assigned to the assignee of the present invention, provides an example shutter mechanism.
[004] A problem can be experienced if a user accidentally releases toner from the cartridge by inadvertently activating the shutter or intentionally engaging the shutter tongue without evaluating its purpose until it is too late. The released toner may fall from the toner cartridge and come into contact with an area surrounding the imaging device or a user's clothing, resulting in dirt. Imaging devices that have a separate toner cartridge and imaging unit are of additional concern. If the imaging unit is not present when the toner cartridge is installed in the imaging device and the cartridge shutter is opened by the imaging device, any toner coming out of the shutter will leak from the output port of the image cartridge for the internal part of the image forming device, due to the fact that the image forming unit 3/38 is not present to receive the same. When leaking toner falls on the internal parts of the imaging device, it can cause reliability problems and, in some cases, printing defects. Consequently, it will be noted that a mechanism is desired that prevents unwanted release of toner from the cartridge plug.
[005] Additionally, in devices using a separate toner cartridge and imaging unit, it is important that the toner cartridge and imaging unit are precisely aligned with respect to each other within the imaging device. For example, if the output port on the toner cartridge is misaligned with the input port on the imaging unit, severe toner leakage may occur. The toner cartridge and the imaging unit also need to be rigidly held in place after they are installed in the imaging device in order to prevent their positional alignment from being disturbed during operation. The requirement for positional control needs to be balanced with the need to allow the user to easily load and unload the imaging unit and toner cartridge in and out of the imaging device. Consequently, it will be noted that a toner cartridge that has positional control characteristics that allow for precise alignment of the cartridge, while allowing various angles of insertion of the cartridge into the imaging device, is also desired.
SUMMARY [006] A toner cartridge for use in an image forming device according to an example modality includes a housing that has a top, bottom, front and rear positioned between a first side and a second side of the accommodation. The housing defines a reservoir to contain toner in it. An outlet port is in fluid communication with the reservoir and is
4/38 facing down in front of the housing near the first side. A shutter is positioned on the exit door which is movable between an open position to allow toner to pass through the exit door and a closed position to prevent toner from passing through the exit door. A toner release system for transferring toner from the reservoir out of the outlet port includes a main interface gear to provide rotational power to the toner release system. A part of the main interface gear is exposed in front of the housing near the top of the second side and can be engaged with a corresponding drive gear in the image forming device. A rear-facing opening is positioned close to the first side of the housing for receiving a first engagement feature on the imaging device to open and close the shutter. A forward-facing slot is positioned close to the first side of the housing to receive a second engagement feature on the image forming device to lock and unlock the shutter.
[007] A toner cartridge for use in an imaging device that has an imaging unit separate from the toner cartridge removably installed therein, according to another example embodiment, includes a housing that has a top, a bottom, a front and a rear positioned between a first side and a second side of the housing. The housing defines a reservoir to hold the toner in it. An outlet port is in fluid communication with the reservoir and faces down in front of the housing near the first side. A shutter is positioned on the exit door which is movable between an open position to allow toner to pass through the exit door and a closed position to prevent toner from passing through the exit door. A toner release system for transferring toner from the reservoir out of the outlet port includes a main interface gear to provide power
5/38 rotational cia for the toner release system. A part of the main interface gear is exposed in front of the housing near the top of the second side and can be engaged with a corresponding drive gear in the image forming device. A connection is operatively connected to the shutter to open the shutter when actuated by an engagement feature on the imaging device. A rear-facing opening is positioned near the first side of the housing for receiving the engagement feature on the image forming device. A lock is operatively engaged with the connection and activated towards a locked position that prevents the connection from opening the shutter. The locking is movable to an unlocked position when actuated by an engagement feature on the image forming unit, which allows the connection to open the shutter. A forward-facing slot is positioned near the first side of the housing to receive the coupling feature on the image forming unit.
BRIEF DESCRIPTION OF THE DRAWINGS [008] The characteristics and advantages mentioned above and others of the different modalities, and the way to achieve them, will become more evident and will be better understood by reference to the attached drawings.
[009] Figure 1 is a block diagram of an image system according to an example modality.
[010] Figure 2 is a perspective view of a toner cartridge and an image forming unit according to an example embodiment.
[011] Figures 3 and 4 are additional perspective views of the toner cartridge shown in Figure 2.
[012] Figures 5 and 6 are exploded views of the toner cartridge shown in Figure 2, which show a reservoir to hold the toner in it.
[013] Figure 7 is a perspective view of the front of the toner cartridge
6/38 shown in Figure 2, which shows an exit door.
[014] Figures 8A and 8B are seen in perspective of a shutter assembly for use with the toner cartridge in a closed position and an open position, respectively, according to an example embodiment.
[015] Figures 9A and 9B are exploded views of the plug assembly shown in Figures 8A and 8B.
[016] Figure 10 is a side elevation view of the toner cartridge shown in Figure 2 with an end cap removed to show a shutter lock mechanism in a locked position with a closed shutter according to a first example embodiment .
[017] Figure 11 is a side elevation view of the toner cartridge shown in Figure 10 showing the shutter lock mechanism in an unlocked position with the shutter closed.
[018] Figure 12 is a side elevation view of the toner cartridge shown in Figures 10 and 11 showing the shutter lock mechanism in the unlocked position with the shutter open.
[019] Figure 13 is an approach view of the toner cartridge shown in Figures 10 to 12, when the shutter lock mechanism is in the unlocked position that shows the internal connection in the tongue path at the external connection to allow the internal connection open the shutter when the external connection is pressed.
[020] Figure 14 is a side elevation view of the toner cartridge shown in Figures 10 to 13 showing the shutter lock mechanism in the locked position that allows an external connection to be pressed without opening the shutter.
[021] Figure 15 is an approach view of the toner cartridge shown in Figures 10 to 14, when the shutter lock mechanism is in the locked position, which shows an internal connection spaced below a tongue on the connection
7/38 external to allow the external connection to be pressed without opening the shutter.
[022] Figure 16 is a top perspective view of the toner cartridge and imaging unit shown in Figure 2.
[023] Figure 17 is a cross-sectional view of the toner cartridge and imaging unit taken along line 17-17 in Figure 16 with the advanced toner cartridge closest to the imaging unit.
[024] Figure 18 is a side elevation view of the toner cartridge shown in Figure 2, as it is loaded into an imaging device.
[025] Figure 19 is a side elevation view of the toner cartridge shown in Figure 2 in its final position on the image forming device that shows the engagement of several interface characteristics.
[026] Figures 20A to C are sequential views of a first wing guide over the toner cartridge advancing in a corresponding insertion path in the image forming device according to an example modality.
[027] Figures 21A to C are sequential views of a second wing guide on the toner cartridge advancing on a corresponding insertion path in the image forming device according to an example modality.
[028] Figures 22A to C are sequential cross-sectional views of a toner cartridge leg taken along line 22-22 in Figure 2, as the toner cartridge is inserted into the imaging device according to with an example modality.
[029] Figure 23 is a perspective view of a toner cartridge and an image forming unit according to a second example embodiment.
[030] Figures 24 and 25 are an additional perspective view of the toner cartridge shown in Figure 23.
[031] Figure 26 is a side elevation view of the toner cartridge shown in Figure 23 with an end cap removed to show a
8/38 shutter lock in a position locked with a closed shutter according to a second example mode.
[032] Figure 27 is a top perspective view of the toner cartridge and imaging unit shown in Figure 23.
[033] Figure 28 is a cross-sectional view of the toner cartridge and imaging unit taken along line 28-28 in Figure 27, with the advanced toner cartridge closest to the imaging unit.
DETAILED DESCRIPTION
The following detailed description and drawings illustrate the modalities to sufficiently enable elements skilled in the art to practice the present invention. It should be understood that the description is not limited to the details of the construction and arrangement of components presented in the following description or illustrated in the drawings. The invention is capable of other modalities and can be practiced or carried out in different ways. For example, other modalities may incorporate structural, chronological, electrical, process and other changes. The examples only represent possible variations. Individual components and functions are optional, except where explicitly required, and the sequence of operations may vary. The parts and characteristics of some modalities can be included in or replaced by those of others. The scope of the order covers the attached claims and all available equivalents. The following description should therefore not be interpreted in a limited sense and the scope of the present invention is defined by the appended claims.
In addition, it should be understood that the phraseology and terminology used in this document are for the purpose of description and should not be considered as limiting. The use of "include", "understand" or "have", and variations thereof in this document, is intended to cover the items listed below and their equivalents, as well as additional items. Except where
9/38 limited to the contrary, the terms "connected", "coupled" and "assembled", and variations thereof, are used widely and include direct and indirect connections, couplings and assemblies. In addition, the terms “connected” and “coupled”, and variations thereof, are not restricted to mechanical or physical connections or couplings.
[034] Terms with spatial references, such as "top", "bottom", "front", "rear", "rear" and "side", "under", "below", "bottom", "about" , "Top", and the like, are used for ease of description to explain the positioning of an element in relation to a second element. These terms are generally used in reference to the position of an element in its intended operating position within an imaging device. Additionally, terms, such as "first", "second", and the like, are used to describe various elements, regions, sections, etc. and are not intended to be limiting. The term "image", for use in the present invention, encompasses any form of printed or digital text, graphics or a combination thereof. Similar terms refer to similar elements throughout the description.
[035] With reference now to the drawings and particularly to Figure 1, a block diagram description of an image system 20 is shown according to an example embodiment. The imaging system 20 includes an imaging device 22 and a computer 24. The imaging device 22 communicates with the computer 24 via a communication link 26. For use in the present invention, the term "imaging link" Communication ”generally refers to any structure that facilitates electronic communication between multiple components and can operate using wireless or wired technology and can include Internet communications.
[036] In the example mode shown in Figure 1, the imaging device 22 is a multifunctional machine (sometimes called an all-in-one device)
10/38 in-one (AIO)) which includes a controller 28, a print engine 30, a laser scanning unit (LSU) 31, an image forming unit 32, a toner cartridge 35, an imaging interface user 36, a media feeding system 38, a media input tray 39 and a scanning system 40. The imaging device 22 can communicate with computer 24 via a standard communication protocol, such as, for example, universal serial bus (USB), Ethernet, or IEEE 8O2.xx. The imaging device 22 can be, for example, an electrophotographic printer / copier that includes an integrated scanning system 40 or an independent electrophotographic printer.
[037] Controller 28 includes a processor unit and associated memory 29 and can be formed as one or more application-specific integrated circuits (ASICs). Memory 29 can be any volatile or non-volatile memory combining them, such as, for example, random access memory (RAM), read-only memory (ROM), flash memory and / or non-volatile RAM (NVRAM). Alternatively, memory 29 may be in the form of a separate electronic memory (for example, RAM, ROM and / or NVRAM), a hard disk, a CD or DVD drive, or any memory device suitable for use with the controller 28. Controller 28 can be, for example, a printer driver and combined scanning device.
[038] In the illustrated example mode, controller 28 communicates with the print engine 30 through a communication link 50. Controller 28 communicates with the image forming unit 32 and the set of processing circuits 44 in it through a communication link 51. Controller 28 communicates with the toner cartridge 35 and a set of processing circuits 45 in it via a communication link 52. Controller 28 communicates with the media supply system 38 through of a link
11/38 communication 53. Controller 28 communicates with the scanning system 40 via a communication link 54. User interface 36 is communicatively coupled to controller 28 via a communication link 55. The circuitry Processor 44, 45 can provide authentication, security and operational lockout functions, operating parameters and usage information related to the imaging unit 32 and toner cartridge 35, respectively. Controller 28 processes scan and print data and operates the print engine 30 during printing and the scanning system 40 during scanning.
[039] Computer 24, which is optional, can be, for example, a personal computer, which includes memory 60, such as RAM, ROM and / or NVRAM, an input device 62, such as a keyboard and / or a mouse, and a display monitor 64. Computer 24 also includes a processor, input / output (I / O) interfaces, and can include at least one mass data storage device, such as a hard drive, a CD-ROM and / or DVD drive (not shown). The computer 24 can also be a device capable of communicating with the imaging device 22 in addition to a personal computer, such as, for example, a tablet-type computer, a smart phone or other electronic device.
[040] In the illustrated example mode, computer 24 includes in its memory a software program that includes program instructions that act as an image formation trigger 66, for example, printer / scanner control software, for the device image formation 22. The image formation trigger 66 is in communication with the controller 28 of the image formation device 22 through the communication link 26. The image formation trigger 66 facilitates communication between the image formation device image 22 and computer 24. One aspect of the imaging driver
12/38 can consist, for example, of providing formatted print data to the imaging device 22 and, more particularly, to the print engine 30, to print an image. Another aspect of the imaging driver 66 may be, for example, to facilitate the collection of examined data from the scanning system 40.
[041] In some circumstances, it may be desirable to operate the imaging device 22 in an independent mode. In independent mode, the imaging device 22 is capable of operating without a computer 24. Consequently, all or part of the imaging driver 66, or a similar driver, can be located on the controller 28 of the imaging device 22, in order to accommodate printing and / or scanning functionality when operating in standalone mode.
[042] The print engine 30 includes the laser scanning unit (LSU) 31, the toner cartridge 35, the imaging unit 32 and fuser 37, all mounted inside the imaging device 22. The unit image forming device 32 is removably mounted on the image forming device 22 and includes a developer unit 34 that houses a toner collector and a toner release system. The toner release system includes a toner addition cylinder that delivers toner from the toner collector to a developer cylinder. A metering blade provides a uniform measured layer of toner on the developer cylinder surface. The imaging unit 32 also includes a cleaning unit 33 that houses a photoconductive drum and a waste toner removal system. The toner cartridge 35 is also removably mounted on the imaging unit 32 in a coupling relationship with the developer unit 34 of the imaging unit 32. An output port on the toner cartridge 35 communicates with a input port on developer unit 34 allowing toner to be transferred periodically from the
13/38 toner cartridge 35 to resupply the toner collector in the developer unit 34.
[043] The electrophotographic printing process is well known in the art and is therefore briefly described in this document. During a printing operation, the laser scanner unit 31 creates a latent image on the photoconductive drum in the cleaning unit 33. The toner is transferred from the toner collector in the developer unit 34 to the latent image on the photoconductor drum by the developer cylinder to create a toned image. The toned image is then transferred to a sheet of media received at the imaging unit 32 from the media input tray 39 for printing. Toner residue is removed from the photoconductive drum by the waste toner removal system. The toner image is adhered to the media sheet in the fuser 37 and then sent to an output location or to one or more finishing options, such as a duplexer, stapler or perforator.
[044] With reference now to Figure 2, a toner cartridge 100 and an imaging unit 200 are shown according to an example embodiment. The imaging unit 200 includes a developer unit 202 and a cleaning unit 204 mounted on a common frame 206. As discussed above, the imaging unit 200 and toner cartridge 100 are each installed removable way in the imaging device 22. The imaging unit 200 is first slidably inserted into the imaging device 22. The toner cartridge 100 is then inserted into the imaging device 22 and into the frame 206 in a coupling relationship with the developer unit 202 of the imaging unit 200, as indicated by the arrow shown in Figure 2. This arrangement allows the toner cartridge 100 to be removed and easily reinserted when replacing a print cartridge. empty toner without having to remove the imaging unit 200. The imaging unit 200 can also be
14/38 promptly removed, as desired, to maintain, repair, or replace components associated with developer unit 202, cleaning unit 204, or frame 206 or to clear a media jam.
[045] With reference to Figures 2 to 5, the toner cartridge 100 includes a housing 102 that has a closed reservoir 104 (Figure 5) to retain a quantity of toner in it. The housing 102 can be viewed as having a top or lid 106 mounted on a base 108. The base 108 includes first and second side walls 110, 112 connected to the contiguous front and rear walls 114, 116. In one embodiment, the top 106 is ultrasonically welded to the base 108, thus forming the closed reservoir 104. The first and second end caps 118, 120 are mounted on the side walls 110, 112, respectively. The first and second end cap 118, 120 can be snapped into place or secured by screws or other fasteners. A handle 122 can be provided on the top 106 or base 108 of the toner cartridge 100 to assist with inserting and removing the toner cartridge 100 from the imaging unit 200 and imaging device 22. As shown in Figure 6, a fill port 124 is provided on the side wall 112 which is used to fill the toner cartridge 100 with toner. After filling, the filling port 124 is closed by a plug 126 and / or cover 128.
[046] With reference to Figure 5, several drive gears are housed within a space formed between the end cap 118 and the side wall 110. A main interface gear 130 engages with a drive system in the image forming device 22 which supplies torque to the main interface gear 130. A part of the main interface gear 130 is exposed between the side wall 110 and the end cap 118 on a front of the toner cartridge 100 (Figure 2). As discussed in greater detail below, several connections are housed within a space formed between the
15/38 end cap 120 and side wall 112. One or more blades 134 are pivotally mounted within the toner reservoir 104 with the first and second ends of a spindle drive shaft 136 extending through openings aligned in side walls 110, 112, respectively. The axis of the drive shaft 136 is positioned below and spaced backwards from the axis of the main interface gear 130. A drive gear 138 is provided at the first end of the drive shaft 136 which engages with the main interface gear 130 directly or through one or more intermediate gears. Cushions can be provided at each end of the drive shaft 136, where it passes through the side walls 110, 112. Consequently, the side wall 110 can also be called the "drive" or "driven" side of the toner cartridge 100 .
[047] With reference to Figures 5 and 6, a thread 140 having first and second ends 140a, 140b, and a pitch of the spiral screw thread 140c is positioned in a channel 142 that extends along the width of the front wall 114 between side walls 110, 112. Channel 142 and thread axis 140 are positioned above the axis of drive shaft 136, but below the axis of main interface gear 130. Channel 142 and axis of the thread 140 are also spaced forward from the geometry axes of the drive shaft 136 and main interface gear 130. The channel 142 can be integrally molded as part of the front wall 114 or formed as a separate component that is fixed to the front wall 114. Channel 142 is generally horizontal in orientation along with toner cartridge 100, when toner cartridge 100 is installed in the imaging device 22. The first end 140a of the thread 140 extends through side wall 110 and drive gear 144 is provided at the first end
16/38 that 140a engages with the main interface gear 130 directly or through one or more intermediate gears. Channel 142 includes an open portion 142a and an enclosed portion 142b. The open part 142a is open to the toner reservoir 104 and extends from the side wall 110 towards the second end 140b of the thread 140. The closed part 142b of the channel 142 extends from the side wall 112 and terminates an assembly plug 150 (Figure 7) and the second end 140b of thread 140. As the blade (s) 134 rotate, they release toner from the toner hopper 104 in the open part 142a of channel 142. The thread 140 is rotated through drive gear 144 to release toner received in channel 142 for shutter assembly 150. Shutter assembly 150 regulates whether toner is allowed to exit toner cartridge 100 through an outlet port 152 provided on the wall front 114 and shown in Figure 7. Output port 152 is arranged at the bottom of channel 142 facing downward, so that gravity will assist in the toner output through outlet port 152.
[048] The shutter assembly 150 is shown in greater detail in Figures 8A, 8B, 9A and 9B. The plug assembly 150 includes a plug 154 which is rotatable between a closed position shown in Figures 8A and 9A and an open position shown in Figures 8B and 9B. The plug 154 includes an open end 154a which receives the second end 140b of the thread 140 therein. As the thread 140 rotates, it releases toner from channel 142 to plug 154. Plug 154 includes a radial opening 154b that is connected to the open end 154a by an internal channel in plug 154. The radial opening 154b allows the toner exit the toner cartridge 100 through output port 152, as discussed in more detail below.
[049] A retaining element 156 is mounted on the side wall 112 of the toner cartridge 100 (Figure 7). In the illustrated example embodiment, the retaining element 156 is a separate component attached to the housing 102; however, the he
The retention element 156 can also be integrally molded as part of the housing 102. The retention element 156 includes a pad 158 that receives a closed end 154c of the plug 154. The closed end 154c of the plug 154 is connected to a lever 160 that opens and closes shutter 154. In the illustrated example, closed end 154c of shutter 154 includes a key 162 and lever 160 includes a corresponding key slot 164. Key 162 and key slot 164 engage the shutter 154 to lever 160 such that rotation of lever 160 opens and closes shutter 154. It will be appreciated that this configuration can be reversed so that lever 160 includes a key and the closed end 154c includes a corresponding key groove. In the illustrated embodiment, lever 160 is connected to the closed end 154c through a fastener 166 that passes through the key slot 164 and a threaded hole 168 in the closed end 154c; however, lever 160 and plug 154 can be connected by any suitable means, such as being snapped together. A stop 170 is provided at the distal end of lever 160.
[050] When the lever 160 is in a first position shown in Figures 8A and 9A, the shutter 154 is in a closed position with the radial opening 154b positioned in front of an internal surface of the closed part 142b of channel 142 in order to prevent the toner comes out of the toner cartridge 100. When lever 160 rotates to a second position shown in Figures 8B and 9B, shutter 154 rotates to an open position where radial opening 154b is aligned with outlet port 152 to allow the toner comes out of toner cartridge 100. When shutter 154 is in the open position, toner can be released from reservoir 104 of toner cartridge 100 to the imaging unit 200 by rotating blade (s) 134 and thread 140, as desired. Specifically, as the paddle (s) 134 rotate, they release toner from the toner container 104 at the top
18/38 open 142a of channel 142. As the thread 140 turns, it releases the toner received in channel 142 to the shutter 154 through the open end 154a. The toner passes through the internal channel in the shutter 154 and out of the radial opening 154b and exit port 152 in a matching input port 208 in developer unit 202 (Figure 2).
[051] Figure 10 shows a side view of cartridge 100 with end cap 120 removed to more clearly illustrate an example shutter lock mechanism 300 housed between side wall 112 and end cap 120. The lock mechanism shutter 300 includes a shutter connection 310 that acts on lever 160 to open and close shutter 154 and a lock 330 that prevents shutter 154 from opening, except when toner cartridge 100 is installed inside an imaging device 22 and coupled with the imaging unit 200. In this embodiment, the shutter connection 310 includes an external connection 312 and an internal connection 314. The external connection 312, in one form, is bifurcated with internal and external side walls 320, 322, respectively, and includes an engagement surface 316, such as a button-like area, which is exposed through a rear-facing opening 175 and an outer part of housing 102 (see also Figs other 2 to 4), such as a rear end cap 120 next to cap 106 as shown. The internal connection 314 is connected at one end to the lever 160. In the illustrated example, the internal connection includes a channel 318 that receives the stop 170 which extends from the lever 160. However, the internal connection 314 and the lever 160 can be connected by any suitable means, such as, for example, inverting the stop / channel configuration such that the internal connection 314 includes a stop and the lever 160 includes a corresponding channel. The internal connection 314 is articulated on the stop 170 of the lever 160. The external connection 312 and internal connection 314 are elongated elements that overlap a
19/38 with each other. In the illustrated embodiment, the internal connection 314 is positioned at the fork between the side walls 320, 322 of the external connection 312; however, this setting can be reversed as desired. The external connection 312 is activated by an activating element, such as a spring (for example, an extension spring) towards opening 175, where the engaging surface 316 is exposed. Similarly, the internal connection 314 is activated by an activating element away from the lever 160, so that the shutter 154 is activated towards the closed position.
[052] In this embodiment, the lock 330 is articulably fixed to the side wall 112 on its geometric axis of rotation 332. The lock 330 includes a first leg 334 and a second leg 336 that each extend radially from the geometry axis 332. The second leg 336 includes a first part 336a extending radially from geometry axis 332 and a second part 336b extending in a curved manner near the distal end of the first part 336a at an angle that is almost perpendicular to the first part 336a. The second part 336b of the second leg 336 includes an engaging surface 340 which contacts a engaging feature, such as a fin 210 over the frame 206 (or other engaging feature on the imaging unit 200) to allow shutter 154 opens. As shown in Figure 3, a forward facing slot 174 is provided in a front of the base 108 and / or end cap 120 of the toner cartridge 100 to receive the fin 210. The slot 174 limits access to the lock 330 to reduce the likelihood of a user inadvertently unlocking lock 330. Referring again to Figure 10, first leg 334 includes a flexible element 342 at the distal end thereof. The flexible element 342 includes a curved engagement surface 344 (Figure 11) on an outer surface thereof facing the internal connection 314. A lower surface of the internal connection 314 (hidden behind the wall
20/38 side of the internal connection 314) is supported by the flexible element 342 on the engagement surface 344. The lock 330 is activated by one or more activation elements in the locked position shown in Figure 10 to prevent the plug 154 from opening before installing the toner cartridge 100 in the imaging device 22, as discussed in more detail below.
[053] Referring to Figure 11, when the toner cartridge 100 is inserted into the imaging device 22 and coupled with the imaging unit 200, the fin 210 enters the slot 174 and comes into contact with the lock 340 of lock 330. The force from fin 210 on lock 330 exceeds the activation force applied to lock 330 and causes it to rotate in a clockwise direction (as shown in Figure 11) to the unlocked position , in turn, by raising the internal connection 314. After the toner cartridge 100 is inserted into the imaging device 22, when an access door to the imaging device 22 is closed, a plunger or other projection that extends from an internal surface of the access door (or otherwise connected to the access door) presses on the engagement surface 316 overcoming the activation force applied to the external connection 312 and pressing both the external connection 312 and the cone internal connection 314 causing lever 160 to rotate to open shutter 154, as shown in Figure 12. When the engagement surface 316 is pressed, external connection 312 moves in the direction shown by the arrow in Figure 12. External connection 312 includes an elongated slot 346 that receives a corresponding stop over the end cap 120 or side wall 112. The slot 346 defines the movement path of the external connection 312. As shown in greater detail in Figure 13, when the lock 330 is in the non locked, rotated by the flap 210, the internal connection 314 is raised to the path of a tongue 326 on the internal top surface of the external connection 312. As a result, when the external connection 312 is pressed
21/38, the tongue 326 engages an upper corner 328 of the internal connection 314 overcoming the activation applied to the internal connection 314 and causing the internal connection 314 to advance with the external connection 312 which, in turn, opens the shutter 154. When the outer connection 312 and the inner connection 314 are pressed, the inner connection movement 314 is not strictly translational; preferably, the internal connection 314 moves downwards and then raises slightly as lever 160 rotates on the geometric axis of rotation of the plug 154. The flexible element 342 accommodates this downward and upward movement by flexing slightly to allow that the internal connection 314 goes down without compromising or restricting its movement. This helps to keep external connection 312 and internal connection 314 engaged with each other.
[054] When the toner cartridge 100 is removed from the imaging device 22, this sequence is reversed. When the imaging device access door 22 is opened, outer connection 312 and inner connection 314 retract to their activated positions, closing shutter 154. As the user removes toner cartridge 100 from the device, the fin 210 disengages from the engaging surface 340 causing the lock 330 to rotate in a counterclockwise direction (as shown in Figures 10 to 12) to the locked position. As the lock 330 rotates, the internal connection 314 lowers until the upper corner 328 is below the path of the tongue 326.
[055] Referring to Figure 14, if the engagement surface 316 is pressed while the lock 330 is in the locked position shown in Figures 10 and 14, the outer connection 312 is pressed towards and beyond the inner connection 314. As shown in more details in Figure 15, when the lock 330 is locked, the internal connection 314 is spaced below the tongue 326 on the internal top surface of the external connection 312. As a consequence, the external connection 312 is free to pass the internal connection 314 without pressing it
22/38 and therefore without opening the shutter 154. In this way, the shutter lock mechanism 300 prevents the shutter 154 from being opened, except when the engaging surface 316 of the external connection 312 is pressed and the engaging surface 340 lock 330 is engaged. This prevents the shutter 154 from opening, except when the toner cartridge 100 is coupled with the imaging unit 200 in its final position on the imaging device 22. As a result, the shutter 154 will remain closed as long as that the toner cartridge 100 is removed from the imaging device 22, even if the engaging surface 316 is pressed.
[056] If shutter 154 were opened without the imaging unit 200 present, the toner would be able to escape from the toner cartridge 100 through outlet port 152 in the inner area of the imaging device 22, potentially causing defects Printing. The shutter lock mechanism 300 prevents this from occurring. The shutter lock mechanism 300 also allows the user to close the access door to the imaging device 22 without opening the shutter 154, even if the imaging unit 200 is not present. If external connection 312 were not free to pass internal connection 314 when the imaging unit 200 is not present, if a user tried to close the access door to the imaging device 22, he would be unable due to the fact that locking 330 would prevent outer connection 312 and inner connection 314 from moving. If the user continued to try to close the access door, depending on the force applied, it is possible that one or more of the components that make up the locking mechanism 300 or another part of the toner cartridge 100 or imaging device 22 could break. Locking mechanism 300 addresses this problem by allowing outer connection 312 to move beyond inner connection 314 when lock 330 is in the locked position. Locking mechanism 300 also reduces the likelihood of a user
23/38 accidentally releasing toner from the toner cartridge 100 due to the fact that it requires both the engagement surface 316 and the engagement surface 340 to be pressed in order to open the shutter 154.
[057] With reference to Figures 3 and 7, the toner cartridge 100 includes a rib or projection 176 that protrudes from the front 114 of the housing 102 spaced from the exit port 152 next to the side wall 112. In the modality of For example, projection 176 is formed as part of the retaining element 156. Projection 176 is positioned to actuate a shutter 209 (Figure 16) that regulates whether toner is allowed to enter input port 208 in developer unit 202. Specifically , as the toner cartridge 100 is installed in the imaging device 22 and coupled with developer unit 202, projection 176 comes into contact and opens shutter 209. When toner cartridge 100 is separated from the imaging unit developer 202 and removed from the imaging device 22, projection 176 disengages from and closes shutter 209. In the illustrated example embodiment, projection 176 includes a forward projected portion 177 that extends to l edge of the front wall 114 and a projection 178 extending sideways from the front of the projected forward part 177.
[058] Referring again to Figure 2, when the toner cartridge 100 is installed in the imaging device 22, its various interface characteristics need to align with the corresponding interface characteristics in the imaging unit 200 and imaging device. imaging 22. In its final position on the imaging device 22, the toner cartridge 100 is positioned above the frame 206 of the imaging unit 200 with the output port 152 (Figure 3) aligned and coupled with the input port 208 on developer unit 202. In its final position, toner cartridge 100 does not apply a load force on developer unit 202. Output port 152 and input port 208 need to be precisely aligned in order to prevent leakage
24/38 toner between the toner cartridge 100 and developer unit 202. Additionally, the main interface gear 130 needs to align and engage with a corresponding drive gear on the imaging device 22 that provides torque for the main interface gear 130. If main interface gear 130 is misaligned, the appropriate gear slot may not be reached, which can result in gear clogging. The electrical contacts for the processing circuitry 45 of the toner cartridge 100 positioned within a connector 145 on the end cap 118 need to align and mate with the corresponding electrical contacts on the imaging device 22 in order to allow communication between the toner cartridge 100 and the imaging device 22. As shown, connector 145 includes a forward-facing opening 145a for receiving the corresponding electrical contacts on the imaging device 22. In the illustrated example embodiment, the end cap 120 includes a tapered entry point 145b which is aligned with aperture 145a to guide the corresponding electrical contacts on the imaging device 22 toward aperture 145a as the toner cartridge 100 is inserted. In addition, slot 174 needs to be positioned to receive fin 210 as the toner cartridge 100 is inserted into the imaging device 22 and aperture 175 needs to be positioned to receive projection from the access door to the imaging device. image formation 22 in order to unlock the lock 330. The positions of these various interface points need to be tightly controlled to ensure proper operation of the toner cartridge 100. As a consequence, the toner cartridge 100 needs to be properly positioned at from front to rear (direction “x” in Figure 2), vertically (direction “y”) and side by side or axially (direction “z”). The insertion angle of the toner cartridge (“0”), also referred to as the yaw angle, also needs to be controlled
25/38 an acceptable range to ensure proper placement.
[059] With reference to Figures 2 and 16, the toner cartridge 100 and the imaging unit 200 include both fine and thick axial positioning characteristics. The toner cartridge 100 includes a pair of legs 146, 148 that project downwardly from the base 108. The legs 146, 148 are spaced along the axial direction “z” of each other between the end caps 118, 120 The legs 146, 148 extend along the base 108 from the rear of the toner cartridge towards the front wall 114 parallel to the direction of the “x” insertion. A front of the leg 148 includes the slot 174 therein. The frame 206 of the imaging unit 200 includes a pair of vertical walls 212, 214 that correspond with the legs 146, 148. Each vertical wall 212, 214 includes a beveled front surface 212a, 214a that is angled outwardly relative to the insertion direction “x” and faces the toner cartridge 100 as the toner cartridge 100 advances towards the imaging unit 200. Each vertical wall 212, 214 also includes an inner surface 212b, 214b that is substantially parallel to the insertion direction “x” of the toner cartridge 100. The inner surfaces 212b, 214b are spaced inwardly from the front surfaces 212a, 214a, respectively, along the “x” direction towards the developer unit 202 As the toner cartridge 100 is inserted into the imaging device 22, the front surfaces 212a, 214a guide the toner cartridge 100 toward developer unit 202 and limit the path of the toner cartridge. oner 100 in the axial direction “z”. If the toner cartridge 100 is misaligned in the axial direction “z” during insertion, an outer surface 146a, 148a of one of its legs 146, 148 will contact the corresponding front surface 212a or 214a of vertical walls 212, 214 The front surface angle 212a or 214a will then propel the toner cartridge 100 towards its proper axial alignment, thus providing thick position control as the
26/38 toner cartridge 100 advances towards developer unit 202.
[060] As the toner cartridge 100 is advanced further, the outer surfaces 146a, 148a of the legs 146, 148 are contained between the inner surfaces 212b, 214b of the vertical walls 212, 214 further limiting the path of the toner cartridge toner 100 in the axial direction. In the illustrated example embodiment, the distance between the outer surface 146a of the leg 146 and the outer surface 148a of the leg 148 is between about 266 mm and about 269 mm. These coarse axial control characteristics lead to fine axial control characteristics in the form of a tightly controlled flap and slit interface shown in Figure 17. Figure 17 illustrates a cross-sectional view of the toner cartridge 100 and imaging unit 200 taken along line 17-17 in Figure 16 with the advanced toner cartridge 100 closest to the imaging unit 200. As shown in Figure 17, a vertical wall 216 is spaced inwardly from vertical wall 212 along axial direction “z” forming a gap 218 between them. Specifically, the slot 218 is formed between the inner surface 212b of the vertical wall 212 and an outer surface 216a of the vertical wall 216. As the toner cartridge 100 is advanced closer to the developer unit 202, a front of the leg 146 is received in slot 218 in frame 206 allowing slot 218 to firmly maintain the axial position of the toner cartridge 100 as discussed in more detail below.
[061] With reference to Figures 18 and 19, the side surface of each end cap 118, 120 includes a wing guide 180, 190 (for end cap 120 and wing guide 190 see Figures 3 and 4). Each wing guide 180, 190 includes a generally elongated body 181, 191 extending from the rear of its end cap 118, 120 towards a front thereof. Wing guides 180, 190 are substantially parallel to each other. As the toner cartridge 100 is inserted into the imaging device 22, the wing guides
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180, 190 move on a predetermined insertion path 70 defined by top and bottom guides 72, 74 that extend along an internal surface of the imaging device 22. A top surface 182, 192 of each imaging guide wing 180, 190 includes a substantially flat rear 182a, 192a extending from a rear of its end cap 118, 120 towards a front thereof. Each top surface 182, 192 also includes a front 182b, 192b which is angled downwards from the rear part 182a, 192a, respectively. A retainer 183,193 extends vertically upward from each top surface 182, 192, respectively, which limits the forward path of the toner cartridge 100 as it is inserted into the imaging device 22 as discussed in greater detail below . Each wing guide 180, 190 also includes a tapered nose 184, 194, respectively, forming a front end thereof. In the illustrated example embodiment, a bottom surface 185, 195 of each respective wing guide 180, 190 includes three rounded projections 186a, 186b, 186c and 196a, 196b, 196c that define points of contact with bottom guide 74 of the forming device of image 22. Wing guides 180, 190 are sometimes referred to as “dog bone” due to the shape formed by bodies 181, 191 combined with the rounded projections 186b, 186c and 196b, 196c. The top surface 182, 192 of each respective wing guide 180, 190 includes a pair of rounded projections 187a, 187b, 197a and 197b.
[062] Each end cap 118, 120 also includes an engaging surface 172, 173 projecting upwardly from a top of the respective end cap 118, 120. Each engaging surface 172, 173 includes an angled front surface 172a, 173a which faces the imaging unit 200 during insertion and an angled rear surface 172b, 173b which faces away from the imaging unit 200 during insertion.
[063] Referring to Figure 18, as the toner cartridge 100 is first
28/38 inserted into the imaging device 22, a cylinder 76 in the imaging device 22 which is activated in the insertion path of the toner cartridge 100 comes into contact with the front surfaces 172a, 173a of the engaging surfaces 172 , 173. The force applied to the toner cartridge 100 by the drum 76 controls the entry of the toner cartridge 100 and prevents it from advancing on the imaging device 22 too quickly. In addition, as the toner cartridge 100 is first inserted into the imaging device 22, the downward sloping front parts 182b, 192b and the tapered nose 184, 194 of the wing guides 180, 190 provide the user with a relatively wide wide range of permissible insertion angles θ (or yaw). As the toner cartridge 100 advances, the insertion angle is limited by projections 187a, 187b, 197a, 197b on the top surfaces 182, 192 and front projections 186a, 196a on the bottom surfaces 185,195 as shown.
[064] Referring to Figure 19, as the toner cartridge 100 is advanced to its final position, the drum 76 passes over an apex 172c, 173c of each engaging surface 172, 173 until it comes in contact with the rear surfaces 172b, 173b. The force applied by the drum 76 to the rear surfaces 172b, 173b of the toner cartridge 100 pushes the toner cartridge 100 to its final position on the imaging device 22. As the toner cartridge 100 advances, the stops 183, 193 contact the top guide 72 on the imaging device 22 to prevent the toner cartridge 100 from advancing further, thereby controlling the horizontal position from front to back of the toner cartridge 100 along the “χ” direction . The vertical position of the toner cartridge 100 along the “y” direction is controlled by the contact between the rounded projections 186b, 186c, 196b, 196c and bottom guides 74 on the imaging device 22. Specifically, three of the four rounded projections 186b, 186c, 196b, 196c form reference points that define a plane that 29/38 ends the vertical position of the toner cartridge 100. For example, in the example shown, the radii of the rounded projections 186b, 186c and 196b are the while the radius of the rounded projection 196c is slightly smaller. As a consequence of this, in this embodiment, the rounded projections 186b, 186c and 196b control the vertical position of the toner cartridge 100.
[065] The precise positioning of the toner cartridge 100 allows for proper alignment between the various interface characteristics of the toner cartridge 100 and the corresponding interface characteristics on the imaging unit 200 and imaging device 22. As shown, in its final position, the output port 152 of the toner cartridge 100 is aligned and coupled with the input port 208 on the developer unit 202. The main interface gear 130 is aligned and coupled with a corresponding drive gear 78 on the device Forming image 22. The electrical contacts for the processing circuitry on connector 145 are aligned and coupled with the corresponding electrical contacts on a connector 80 on the imaging device 22. The positional control characteristics of the toner cartridge 100 ensure that these interface points are tightly controlled to ensure proper operation of the car toner cartridge 100. During operation, the force applied by the drum 76 to the rear surfaces 172b, 173b of the engaging surfaces 172, 173 holds the toner cartridge 100 in position and prevents it from separating from the input port 208, drive gear 78 or electrical contacts 80.
[066] Figures 20A-C, 21A-C and 22A-C are sequential views illustrating the insertion of the toner cartridge 100 into the imaging device 22. Figures 20A-C and 21A-C show the positions of the guides wing 180, 190, respectively, with respect to the insertion path 70 as the toner cartridge 100 is inserted into the imaging device 22. Figures 22A-C show views
30/38 in cross section of leg 146 of toner cartridge 100 taken along line 22-22 in Figure 2. Figures 20A, 21A and 22A show a first view in sequence as the toner cartridge 100 is initially inserted in the imaging device 22. Specifically, Figures 20A and 21A show wing guides 180, 190, respectively, that enter their respective insertion paths 70. Figure 22A shows a front 180 of leg 146 that enters slot 218 in frame 206. As shown, the front part 146b of the leg 146 tapers in width forming a flap or nose 146c at a front end thereof. In one embodiment, the width of the nose 146c is between about 5 mm and about 9 mm. The slot 218 includes a corresponding tapered entry point 220 for receiving and guiding the front part 146b of the leg 146 into the slot 218. The slot 218 also includes an inner slot part 222 sized to firmly receive the nose 146c. Figures 20B, 21B and 22B show a second view in sequence as the toner cartridge 100 is further advanced in the imaging device 22. Figures 20B and 21B show wing guides 180, 190, respectively, advanced further to the along their respective insertion paths 70. Figure 22B shows the front part 146b of the leg 146 further advanced in the slot 218. Figures 20C, 21C and 22C show a final sequence view with the toner cartridge 100 fully inserted in the image 22 and coupled with developer unit 202. Figures 20C and 21C show retainers 183, 193 engaged with a rounded retainer or lip 82 on the imaging device 22. Retains 82 control the position of the toner cartridge 100 in the direction of insertion and ensure that the toner cartridge 100 is not inserted excessively into the imaging device 22. Figures 20C and 21C also show projections arr edondadas 186b, 186c and 196b, positioned on the bottom guide 74 and rounded projections 186a, 196a and 196c spaced from the bottom guide 74. As discussed above, nes
31/38 in this mode, the rounded projections 186b, 186c and 196b define a plane that controls the vertical position of the toner cartridge 100. Figure 22C shows the nose 146c firmly positioned in the internal slot part 222 to control the axial position of the cartridge toner cartridge.
[067] Figures 23 to 25 show a toner cartridge 400 and a corresponding image forming unit 500 according to a second example embodiment. The imaging unit 500 includes a developer unit 502 and a cleaning unit 504 mounted on a common frame 506. Developer unit 502 includes an input port 508 for receiving toner from the toner cartridge 400. Frame 506 includes a projection 510 for actuating a shutter that regulates the flow of toner out of toner cartridge 400 similar to fin 210 discussed above. As discussed above, the imaging unit 500 and the toner cartridge 400 are each removably installed in the imaging device 22. In its final position, the toner cartridge 400 is in a coupling relationship with the developer unit 502 of the imaging unit 500.
[068] The toner cartridge 400 includes a housing 402 that has a top or lid 406 mounted on a base 408. Housing 402 includes a reservoir enclosed in it to retain toner, as discussed above. The internal components of the toner cartridge reservoir 400 (for example, the paddles, drive shaft, channel and thread) are substantially the same as those discussed above in relation to the toner cartridge 100. The base 408 includes first and second side walls connected to the contiguous front and rear walls 414, 416. The first and second end caps 418, 420 are mounted on the side walls (hidden by the end caps 418, 420), respectively. A handle 422 can be provided on the top 406 or base 408 of the toner cartridge 400 as desired. A main interface gear 430 is exposed on the front wall
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414 between the end cap 418 and its side wall. The main interface gear 430 engages with a drive system in the imaging device 22 that supplies torque to the main interface gear 430. Several additional drive gears are housed within a space formed between the end cap 418 and the side wall 410, as discussed above in relation to the toner cartridge 100. As discussed in more detail below, several connections are housed within a space formed between end cap 420 and side wall 412. An exit port 452 is arranged on the front wall 414 in a downward orientation, so that gravity assists in toner output through outlet port 452. The shutter assembly 150 discussed above can be used to regulate whether toner is allowed to exit the toner cartridge 400 through outlet port 452. The toner cartridge 400 also includes a connector 445 positioned on end cap 420 that has electrical contacts for the toner cartridge processing circuitry 400. The connector 445 includes a forward-facing opening 445a for receiving the corresponding electrical contacts on the imaging device 22. In the illustrated example, the end cap 420 includes a tapered entry point 445b that is aligned with aperture 445a to guide the corresponding electrical contacts on the imaging device 22 toward aperture 445a as the toner cartridge 400 is inserted. As shown in Figure 24, the toner cartridge 400 includes a rib or projection 476 that protrudes from the front 414 of the housing 402 near the side wall 412 to actuate a shutter 509 (Figure 27) that regulates whether the toner is allowed to enter inlet port 508 in developer unit 502, as discussed above.
[069] With reference to Figure 26, the toner cartridge 400 may include a shutter lock mechanism 600 according to another example embodiment. THE
33/38 end cap 420 is removed in Figure 26 to more clearly illustrate the shutter lock mechanism 600. The shutter lock mechanism 600 includes a shutter connection 610 that acts on a lever 460 to open and close the shutter, as discussed above, and a lock 630 that prevents the shutter from opening, except when the toner cartridge 400 is installed inside the imaging device 22 and coupled with the imaging unit 500. In this embodiment, the shutter connection 610 includes an outer connection 612 and an inner connection 614. The outer connection 612, in one form, is forked with an outer side wall 620 and an inner side wall (hidden behind the outer side wall 620). The external connection 612 includes an engaging surface 616, such as a button-like area, which is exposed through a rear-facing opening 475 to an outside of housing 402, such as a rear end cap 420 near the base 408 as shown (see also Figure 25). Internal connection 614 is connected at one end to lever 460. In the illustrated example, the internal connection includes a channel 618 that receives a stop 470 extending from lever 460; however, as discussed above, this connection can be established by any suitable means. The outer connection 612 and the inner connection 614 are elongated elements that overlap each other. In the illustrated embodiment, the internal connection 614 is positioned at the fork between the external side wall 620 and the internal side wall of the external connection 612; however, this setting can be reversed as desired. External connection 612 is activated by a suitable activation element towards opening 475, where the engaging surface 616 is exposed. Similarly, the internal connection 614 is activated by an activating element away from the lever 460, so that the plug is activated towards the closed position. As discussed above in connection with external connection 312 and internal connection 314 shown in Figures 10 to 15, an internal surface of external connection 612 includes
34/38 a tongue that engages a part of the internal connection 614 when the lock 630 is unlocked, but leaves the internal connection 614 free when the lock 630 is locked.
[070] In this modality, the lock 630 is fixed to the side wall 412 in its geometric axis of rotation 632. The lock 630 extends along the side wall 412 from its fixation point 632 towards the front wall 414. The lock 630 includes a ramp or curved engaging surface 634 that contacts a latching feature, such as projection 510, on the imaging unit 500 to allow the shutter to open. The lock 630 also includes an upward extending stop 636 that raises the internal connection 614 when the lock 630 is unlocked as discussed below. Lock 630 is activated by one or more activating elements in the locked position shown in Figure 26 to prevent the shutter from opening before installing the toner cartridge 400 on the imaging device 22.
[071] As discussed above, if the engagement surface 616 is pressed while the lock 630 is in the locked position, the external connection 612 moves beyond the internal connection 614 without pressing the internal connection 614. As a result, the plug does not opens. This allows the user to close the access door to the imaging device 22 when the imaging unit 500 is not present or to press on the engagement surface 616 without opening the shutter.
[072] When the toner cartridge 400 is inserted into the imaging device 22 and coupled with the imaging unit 500, an engagement feature on the imaging unit 500, such as the projection 510, enters and contacts with the engaging surface 634 of the lock 630. The force from the engagement characteristic on the lock 630 exceeds the activation force applied to the lock 630 and causes it to rotate in one direction in the direction
35/38 counterclockwise (as shown in Figure 26) to the unlocked position. The counterclockwise rotation of the lock 630 causes the stop 636 to contact a bottom 624 of the internal connection 614 and to raise the internal connection 614 in the path of the tongue on the external connection 612, as discussed above. A slot, such as the forward facing slot 474 shown in Figure 24, can be provided on the base 408 and / or end cap 420 of the toner cartridge 400 to receive the engagement feature 510. After the toner cartridge 400 is inserted into the imaging device 22, when an access door to the imaging device 22 is closed, a plunger or other projection extending from an internal surface of the access door (or otherwise connected to the door access pressure) presses the engaging surface 616 overcoming the activation force applied to the external connection 612 and pressing both the external connection 612 and the internal connection 614, causing the lever 460 to rotate to open the shutter.
[073] When the toner cartridge 400 is removed from the imaging device 22, this sequence is reversed. When the access door to the imaging device 22 is opened, the outer connection 612 and the inner connection 614 retract to their activated positions, closing the shutter. As the user removes the toner cartridge 400 from the device, the latch feature 510 disengages from the latch surface 634 causing the lock 630 to rotate in a clockwise direction (as shown in Figure 26). As the lock 630 rotates, the internal connection 614 lowers until it leaves the path of the tongue on the external connection 612 free. As a result, the shutter will remain closed while the toner cartridge 400 is removed from the forming device. image 22, even if the engaging surface 616 is pressed.
[074] Consequently, it will be noted that a locking mechanism, such as locking mechanisms 300 and 600, that has a shutter connection
36/38 and a lock can be employed to ensure that a shutter, such as shutter 154, remains closed except when the toner cartridge is installed in the imaging device and coupled with its corresponding imaging unit. Additionally, the use of an external connection that is able to slide in addition to an internal connection when the lock is locked allows the user to close the access door to the imaging device, when the imaging unit is not present without open the shutter or damage the imaging device or the toner cartridge. The user is also able to press the engaging surface of the plug connection, such as the engaging surface 316 or 616, without opening the shutter.
[075] With reference to Figures 23 to 25 and 27, the toner cartridge 400 and the imaging unit 500 include both coarse and fine axial positioning characteristics. The coarse axial positioning characteristics are similar to those discussed above in relation to the toner cartridge 100 and imaging unit 200. The toner cartridge 400 includes a pair of legs 446, 448 extending downwardly from the base 408. The frame 506 of the imaging unit 500 includes a pair of vertical walls 512, 514 that form a guide 516 between them that hold the leg 446 and a pair of vertical walls 518, 520 that form a guide 522 between them receives leg 448 as the toner cartridge 400 is inserted into the imaging device 22. Each vertical wall 512, 514, 518, 520 includes a beveled front surface 512a, 514a, 518a, 520a that is angled outwardly relative to the insertion direction and faces the toner cartridge 400 as the toner cartridge 400 advances towards the imaging unit 500. The front surfaces 512a, 514a, 518a, 520a guide the toner cartridge 400 in dire developer unit 502 as the toner cartridge 400 is inserted into the imaging device 22. Each vertical wall 512, 514, 518, 520 also includes a surface
37/38 inner 512b, 514b, 518b, 520b which is substantially parallel to the insertion direction of the toner cartridge 400. The inner surfaces 512b, 514b, 518b, 520b restrict the outer surfaces 446a, 448a of the legs 446, 448 limiting the path toner cartridge 400 in the axial direction. In the example embodiment shown in Figures 23 to 25 and 27, the distance between the outer surface 446a of the leg 446 and the outer surface 448a of the leg 448 is between about 255 mm and about 258 mm.
[076] Figure 28 illustrates a cross-sectional view of the toner cartridge 400 and imaging unit 500 taken along line 28-28 in Figure 27. As shown in Figure 28, a stop 524 is spaced axially inward from the guide 516 and extends upwardly from the frame 506 of the imaging unit 500. The toner cartridge 400 includes a slot 477 formed between a pair of substantially parallel walls 478, 479 extending forwards and forwards down from base 408. Slit 477 is spaced axially inward from leg 446. In the example embodiment shown in Figure 28, the width of slit 477 is between about 6.3 mm and about 8.3 mm . As the toner cartridge 400 is advanced towards developer unit 502, stop 524 on the imaging unit 500 is firmly received at slot 477 in toner cartridge 400 allowing slot 477 to precisely maintain the axial position of the toner cartridge 400. As desired, stop 524 and / or slot 477 can include a tapered entry point section to facilitate engagement between the two.
[077] Referring again to Figures 23 to 25 and 27, the side surface of each end cap 418, 420 includes a wing guide 480, 490. Each wing guide 480, 490 includes the "dog bone" structure described above in relation to wing guides 180, 190 of the toner cartridge 100. As discussed above, wing guides 480, 490 control the horizontal position from front to back and the vertical positioning of the toner cartridge 400. Each end cap 418, 420 also includes an engaging surface 472, 473 projecting upwardly from a top of the respective end cap 418, 420. As discussed above, each engaging surface 472, 473 includes an angled front surface 472a, 473a which faces the imaging unit 500 during insertion and an angled rear surface 472b, 473b which faces away from the imaging unit 500 during insertion. During operation, the rear surfaces 472b, 473b of engagement surfaces 472, 473 receive a clamping force from a component in the imaging device 22 to ensure that the outlet port 452, the main interface gear 430, the electrical contacts on connector 445 and the engagement surfaces for the shutter lock mechanism 600 retain their engagement with the imaging unit 500 or imaging device 22.
The previously mentioned description of various modalities has been presented for purposes of illustration. It is not intended to be exhaustive or limit the request to the precise forms presented and, obviously, many modifications and variations are possible in light of the above instruction. It is understood that the invention can be practiced in ways different from those specifically presented in this document, without departing from the scope of the invention. The scope of the request is intended to be defined by the claims attached in this document.
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权利要求:
Claims (26)
[1]
1. Toner cartridge for use in an image forming device, FEATURED by the fact that it comprises:
a housing that has a top, a bottom, a front and a rear positioned between a first side and a second side of the housing, the housing defines a reservoir to hold the toner in it;
an outlet port in fluid communication with the reservoir and facing downwards in front of the housing near the first side;
a shutter positioned on the outlet port that is movable between an open position to allow toner to pass from the outlet port and a closed position to prevent toner from passing the outlet port;
a toner release system for transferring toner from the reservoir out of the outlet port that includes a main interface gear to provide rotational power to the toner release system, with part of the main interface gear exposed in front of the housing near the top of the second side and engaged with a corresponding drive gear in the image forming device;
a rear-facing opening exposed at the rear of the housing close to the first side of the housing and extending from the rear of the housing towards the front of the housing to receive a first engagement feature on the image forming device to open and close the shutter ; and a front facing slit exposed in front of the housing close to the first side of the housing and extending from the front of the housing towards the rear of the housing to receive a second engagement feature on the image forming device for locking and unlock the shutter.
[2]
2. Toner cartridge according to claim 1, CHARACTERIZED
2/9 due to the fact that it additionally comprises:
a first wing guide positioned on the first side of the housing and a second wing guide positioned on the second side of the housing substantially parallel to the first wing guide, each wing guide having a generally elongated body that extends over a dimension of front to back of the housing; and a pair of rounded projections extending from the bottom surface of one of the first wing guide and the second wing guide and a rounded projection extending from the bottom surface of the other between the first wing guide and the second wing guide that define contact points to control the vertical position of the toner cartridge in the imaging device.
[3]
3. Toner cartridge according to claim 2, CHARACTERIZED by the fact that it additionally comprises a first retention that extends from the first wing guide and a second retention that extends from the second wing guide to limit the forward path of the toner cartridge in the image formation device.
[4]
4. Toner cartridge, according to claim 1, CHARACTERIZED by the fact that it additionally comprises a first leg and a second leg, in which each protrudes from the bottom of the housing and extends along a front to back dimension of the housing to limit the side-by-side travel of the toner cartridge during insertion into the imaging device.
[5]
5. Toner cartridge, according to claim 4, CHARACTERIZED by the fact that a front part of at least one between the first and second legs tapers forming a nose at a front end of the same that is sized to engage a corresponding slot on the ima3 / 9 gem device to more accurately control the side-by-side path of the toner cartridge on the image device.
[6]
6. Toner cartridge, according to claim 4, CHARACTERIZED by the fact that it additionally comprises a slot in the front of the housing between the first and the second leg that is sized to receive a corresponding projection in the image forming device for more precisely control the side-by-side movement of the toner cartridge in the image forming device.
[7]
7. Toner cartridge, according to claim 1, CHARACTERIZED by the fact that it additionally comprises a first engaging surface that projects towards a higher point of the housing close to the first side of the housing and a second engaging surface that protrudes to a higher point in the housing close to the second side of the housing to receive a clamping force from the image forming device, each between the first and the second engaging surface that includes an angled front surface that it faces the front of the housing and an angled rear surface that faces the rear of the housing.
[8]
8. Toner cartridge, according to claim 1, CHARACTERIZED by the fact that it additionally comprises:
a connection operatively connected to the shutter to open the shutter when actuated by the first engagement feature on the image forming device; and a locking operatively engaged with the connection and activated towards a locked position that prevents the connection from opening the shutter, the locking being movable to an unlocked position when actuated by the second locking feature on the forming device image that allows the connection to open the shutter.
4/9
[9]
9. Toner cartridge, according to claim 8, CHARACTERIZED by the fact that the connection includes a first connection element positioned to receive the first coupling characteristic and a second connection element connected to the plug, in which in the locked position, locking prevents the second connecting element from opening the shutter, but allows the first connecting element to move relative to the second connecting element and in the unlocked position the locking allows the second connecting element to open the shutter when the first connecting element is actuated by the first coupling characteristic.
[10]
10. Toner cartridge, according to claim 1, CHARACTERIZED by the fact that it additionally comprises a connector on one of the first side and the second side of the housing that has electrical contacts to process the toner cartridge circuitry , the connector that has an opening facing forward for receiving corresponding electrical contacts on the image forming device, the one between the first side and the second side of the housing that has a tapered entry point aligned with the opening facing forward .
[11]
11. Toner cartridge, according to claim 1, CHARACTERIZED by the fact that the toner release system includes:
a thread to release the toner to the shutter that is rotatably mounted inside the housing in a channel that extends along the front of the housing, the channel that includes a part that is open to the reservoir; and a blade rotatably mounted inside the reservoir to release the toner onto the thread, the blade that has a rotational axis which is positioned below a rotational axis of the thread.
[12]
12. Toner cartridge, according to claim 1, CHARACTERIZED by the fact that it additionally comprises a projection that extends to
5/9 front of the housing more forward than a more frontal portion of the exit door and spaced from the exit door towards the first side of the housing, a front of the projection unobstructed to engage a development unit when the toner cartridge is inserted into the image forming device.
[13]
13. Toner cartridge for use in an image forming device, FEATURED by the fact that it comprises:
a housing that has a top, bottom, front and rear positioned between a first side and a second side of the housing, the housing defines a reservoir to hold the toner in it, the housing has an elongated shape between the first side and the second side;
an outlet port in fluid communication with the reservoir and facing downwards in front of the housing near the first side;
a toner release system for transferring toner from the reservoir out of the outlet port that includes a main interface gear to provide rotational power to the toner delivery system, a portion of the main interface gear is exposed at the front the housing near the top of the second side and engaged with a corresponding drive gear in the image forming device;
a rear-facing opening exposed at the rear of the housing close to the first side of the housing and extending from the rear of the housing towards the front of the housing to receive a first engagement feature on the image forming device; and a front-facing opening exposed in front of the housing close to the first side of the housing and extending from the front of the housing towards the rear of the housing to receive a second engagement feature on the image forming device.
[14]
14. Toner cartridge according to claim 13,
6/9
CHARACTERIZED by the fact that it additionally comprises:
a first wing guide positioned on the first side of the housing and a second wing guide positioned on the second side of the housing substantially parallel to the first wing guide, each guide having a generally elongated body extending from front to back of the housing; and a pair of rounded projections extending from a lower surface of one of the first wing guide and the second wing guide and a rounded projection extending from a lower surface of the other between the first wing guide and the second wing guide that defines contact points to control the vertical position of the toner cartridge in the imaging device.
[15]
15. Toner cartridge according to claim 14, CHARACTERIZED by the fact that it additionally comprises a first retention that extends from the first wing guide and a second retention that extends from the second wing guide to limit forward movement of the toner cartridge in the imaging device.
[16]
16. Toner cartridge, according to claim 13, CHARACTERIZED by the fact that it additionally comprises a first leg and a second leg, each projecting from the bottom of the housing and extending along a front to back dimension of the housing to limit movement from side to side of the toner cartridge during insertion into the imaging device.
[17]
17. Toner cartridge, according to claim 16, CHARACTERIZED by the fact that a front part of at least one between the first and second legs tapers forming a nose at a front end of it that is sized to engage a corresponding slot on the imaging device to more accurately control the path from side to side of the
7/9 toner cartridge in the imaging device.
[18]
18. Toner cartridge according to claim 16, CHARACTERIZED by the fact that it additionally comprises a slot in the front of the housing between the first and second legs which is sized to receive a corresponding projection in the image forming device to control accurately track the toner cartridge side-by-side in the imaging device.
[19]
19. Toner cartridge, according to claim 13, CHARACTERIZED by the fact that it additionally comprises a first engaging surface that projects towards a higher point of the housing close to the first side of the housing and a second engaging surface that protrudes to the highest point of the housing close to the second side of the housing to receive a clamping force from the image forming device, each between the first and the second engaging surface that includes an angled front surface that it faces the front of the housing and an angled rear surface that faces the rear of the housing.
[20]
20. Toner cartridge, according to claim 13, CHARACTERIZED by the fact that it additionally comprises a connector on one of the first and second sides of the housing that has electrical contacts to process the toner cartridge circuitry , the connector that has an opening facing forward for receiving corresponding electrical contacts on the image forming device, the one between the first side and the second side of the housing that has a tapered entry point aligned with the opening facing forward .
[21]
21. Toner cartridge, according to claim 13, CHARACTERIZED by the fact that the toner release system includes:
a thread to release the toner to the exit port which is mounted
8/9 swiveling inside the housing in a channel that extends along the front of the housing, the channel that includes a part that is open to the reservoir; and a blade rotatably mounted inside the reservoir to release the toner onto the thread, the blade that has a rotational axis which is positioned below a rotational axis of the thread.
[22]
22. Toner cartridge, according to claim 13, CHARACTERIZED by the fact that it additionally comprises a projection that extends forward from the housing further ahead than a further portion of the exit door and spaced at from the exit door towards the first side of the housing, a front of the projection being unobstructed to engage a developer unit when the toner cartridge is inserted into the imaging device.
[23]
23. Toner cartridge according to claim 12, CHARACTERIZED by the fact that it additionally comprises a projection that extends from the front of the projection away from the exit door towards the first side, a front part of the projection is unobstructed to couple the imaging cartridge when the toner cartridge is inserted in the imaging device.
[24]
24. Toner cartridge according to claim 22, CHARACTERIZED by the fact that it additionally comprises a projection extending from the front of the projection away from the exit door towards the first side, a front part of the projection is unobstructed to couple the imaging cartridge when the toner cartridge is inserted in the imaging device.
[25]
25. The toner cartridge according to claim 1, CHARACTERIZED by the fact that the opening facing back and the slot facing
9/9 forward are aligned with each other in a side-by-side dimension of the housing.
[26]
26. The toner cartridge according to claim 13, CHARACTERIZED by the fact that the opening facing back and the opening facing forward are aligned with each other in a side-by-side dimension of the housing.
1/22
Figure 1
2/22
Figure 2
3/22
Figure 4
108
4/22
106
5/22
Figure 6
140a
6/22
142b
Figure 7
7/22
170
Figure 9B
8/22
Figure 10
Figure 11
9/22
Figure 13
10/22
326
Figure 15
11/22
200
Figure 16
12/22 cQ
Figure 17
13/22
146
Figure 18
14/22
Figure 19
15/22
Figure 20C
16/22
Figure 21A
Figure 21B
Figure 21C
17/22
Figure 22B
Figure 22A
Figure 22C
18/22
473 ⁴ θ ⁶
Figure 23
19/22
Figure 25
475
20/22
Figure 26
21/22
Figure 27
22/22
406

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法律状态:
2018-10-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2018-11-06| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/11/2012, OBSERVADAS AS CONDICOES LEGAIS. |

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2019-12-03| B16C| Correction of notification of the grant|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/11/2012, OBSERVADAS AS CONDICOES LEGAIS. (CO) REF. RPI 2496 DE 06/11/2018 QUANTO AO ENDERECO. |

优先权:

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申请号 | 申请日 | 专利标题

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US13/340.935|2011-12-30|

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US13/340,935|US8867966B2|2011-12-30|2011-12-30|Toner cartridge for use in an image forming device|

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PCT/US2012/065149|WO2013101350A2|2011-12-30|2012-11-15|Toner cartridge for use in an image forming device|

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