WO2022262246A1 - 处理盒及电子成像设备 - Google Patents
处理盒及电子成像设备 Download PDFInfo
- Publication number
- WO2022262246A1 WO2022262246A1 PCT/CN2021/141059 CN2021141059W WO2022262246A1 WO 2022262246 A1 WO2022262246 A1 WO 2022262246A1 CN 2021141059 W CN2021141059 W CN 2021141059W WO 2022262246 A1 WO2022262246 A1 WO 2022262246A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- photosensitive drum
- charging roller
- toner
- cleaning member
- box body
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 92
- 230000008569 process Effects 0.000 title claims abstract description 91
- 238000003384 imaging method Methods 0.000 title claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 103
- 230000002093 peripheral effect Effects 0.000 claims abstract description 34
- 239000000843 powder Substances 0.000 claims description 60
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 16
- 230000005684 electric field Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 10
- 230000004308 accommodation Effects 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 description 43
- 238000012545 processing Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 10
- 238000012546 transfer Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
- G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
- G03G15/0225—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers provided with means for cleaning the charging member
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0808—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer supplying means, e.g. structure of developer supply roller
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0035—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a brush; Details of cleaning brushes, e.g. fibre density
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/007—Arrangement or disposition of parts of the cleaning unit
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/10—Collecting or recycling waste developer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1604—Arrangement or disposition of the entire apparatus
- G03G21/1623—Means to access the interior of the apparatus
- G03G21/1633—Means to access the interior of the apparatus using doors or covers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1814—Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
Definitions
- the present invention relates to the field of electronic image forming apparatuses, in particular, to a process cartridge and an electronic image forming apparatus having the process cartridge.
- An electrophotographic imaging forming device such as a laser printer, is a device that uses the principle of electrophotography to form an image on an image forming medium (such as paper) through at least the processes of charging, exposing, developing, transferring, fixing, and cleaning .
- the devices used on imaging devices to print consumable materials are generally referred to as process cartridges, process cartridges, or printing supplies.
- the toner used for developing is provided by the process cartridge, and when the toner in the process cartridge is used up, a new process cartridge is replaced.
- An existing processing box includes a powder bin, a stirring frame, an upper frame, a cleaning blade and a photosensitive drum.
- the stirring frame is rotatably installed in the powder bin, and the cleaning blade and the upper frame enclose a waste toner containing chamber. Clean the residual toner on the photosensitive drum into the waste toner container by contacting the scraper on the process cartridge with the photosensitive drum. In this way, on the one hand, it is necessary to set up a space for storing waste toner on the process box, that is, a waste toner holding chamber.
- the photosensitive coating on the surface of the photosensitive drum will be damaged, affecting the exposure of the photosensitive drum and the charging roller. These effects will further lead to more waste toner in printing.
- the waste toner accumulated on the photosensitive drum can easily cause the waste toner to be bonded to the charging roller and be polluted, which in turn affects the charging and power dissipation effect of the charging roller. Therefore, the scraper and waste toner have a great impact on the printing quality.
- another existing processing box is equipped with a toner replenishing bin to increase the powder storage capacity of the processing box.
- the volume of the toner bin is limited, so the small-capacity waste toner bin cannot accommodate the amount of waste toner produced by the large-capacity toner bin with the same number of pages printed. Therefore, printing cannot continue after the waste toner in the waste toner bin reaches a certain amount. And when there is too much waste toner in the waste toner bin, it will also cause the internal waste toner to agglomerate.
- the waste toner bin is located near the fuser.
- the temperature of the waste toner bin may be as high as 50 degrees or more, causing the toner in the waste toner bin to agglomerate easily.
- Another existing process box is provided with a photosensitive drum, a charging roller, and a developing roller.
- the charging roller is in contact with the photosensitive drum, and one side of the charging roller is provided with a cleaning brush for cleaning the residual waste powder on the charging roller. clean.
- This kind of processing box does not have a cleaning blade to clean the residual toner on the surface of the photosensitive drum.
- the residual toner on the photosensitive drum is transferred to the charging roller and cleaned by the cleaning brush, and then returned to the developing chamber through the photosensitive drum for reuse. .
- this process cartridge is usually a process cartridge suitable for jumping development, that is, there is no direct contact between the photosensitive drum and the developing roller, that is, there is a gap between the photosensitive drum and the developing roller, and the toner is often deposited between the photosensitive drum and the developing roller. Jumping back and forth between the rollers, it is difficult for the toner to transfer between the photosensitive drum and the developing roller, resulting in a large amount of toner remaining on the photosensitive drum.
- this process cartridge does not have a cleaning blade, the toner remaining on the photosensitive drum cannot be effectively transferred to the charging roller. In the next developing cycle, the toner remaining on the photosensitive drum will be transferred to the paper , thereby affecting the print quality.
- a first object of the present invention is to provide a process cartridge capable of prolonging the service life and expanding its capacity and having high printing quality.
- a second object of the present invention is to provide an electronic image forming apparatus having the above process cartridge.
- the process cartridge provided by the present invention includes a box body, the box body has an accommodation chamber; a developing roller is rotatably installed in the accommodation chamber; a photosensitive drum is rotatably installed in the box body; a charging roller and The outer peripheral surface of the photosensitive drum is in contact, the charging roller and the developing roller are arranged at intervals; the cleaning member is located in the accommodating chamber, the cleaning member is installed in the box body and extends in a direction parallel to the charging roller, and the cleaning member contacts the outer peripheral surface of the charging roller; and , the developing roller is in contact with the peripheral surface of the photosensitive drum.
- a preferred solution is that an opening and a laser channel are further provided on the box body, the opening communicates with the containing cavity, and the opening and the laser channel are arranged opposite to each other in the width direction of the box body.
- the cleaning member is a cleaning brush, or the cleaning member is made of sponge or foamed cotton material.
- the cleaning member is made of conductive material; the axial end of the charging roller is provided with a charging roller electrode, and both the cleaning member and the charging roller are electrically connected to the charging roller electrode.
- a preferred solution is that the box body is provided with a support wall, and the cleaning member is installed on the support wall; or a support rod is installed on the box body, the fixed end of the support rod is connected to the box body, and the cleaning member is installed on the free end of the support rod .
- a preferred solution is that the cleaning member is fixed on the box body, the side wall of the cleaning member facing the charging roller is arc-shaped, and the arc-shaped side wall is bent away from the charging roller.
- the cleaning member has a cylindrical shape and is rotatably mounted on the box body.
- a preferred solution is that a sealing member is provided on the upper edge of the opening, the sealing member extends along the length direction of the photosensitive drum, the fixed end of the sealing member is fixedly connected with the box body, and the free end of the sealing member abuts against the outer peripheral surface of the photosensitive drum ; Only the charging roller, developing roller and seals are in contact with the outer peripheral surface of the photosensitive drum.
- both the developing roller and the charging roller are located on the side of the photosensitive drum close to the laser passage; the developing roller is located below the charging roller, and a laser passing zone is formed between the charging roller and the developing roller Projections of the laser channel, the laser passage area and the photosensitive drum along the width direction of the box body overlap.
- the accommodating chamber includes a toner accommodating chamber and a developing chamber which communicate with each other and are arranged along the width direction of the box body, and the laser passage is located above the toner accommodating chamber.
- a further scheme is that the box body includes a powder bin frame, a first cover part and a second cover part, a partition wall is arranged in the powder bin frame, and a communication port is provided on the partition wall; the first cover part and the powder bin frame surround The second cover part and the powder bin frame form a toner storage chamber, the developing chamber and the toner storage chamber are arranged along the width direction of the box body, and the development chamber and the toner storage chamber are separated by a partition wall Open and communicate through the communication port; the first cover part is located above the second cover part, and the laser channel is located between the first cover part and the second cover part.
- the box body also includes a toner replenishment bin, the toner replenishment bin is located above the toner accommodating chamber and communicates with the toner accommodating chamber, and the laser channel is located between the toner refill bin and the toner accommodating chamber.
- the box body includes a powder bin frame, a first cover part, a second cover part, a powder replenishment bin frame and a third cover part; a partition wall is arranged in the powder bin frame, and a communication port is opened on the partition wall ;
- the first cover part and the powder bin frame form an accommodating chamber
- the second cover part and the powder bin frame surround a toner accommodating chamber
- the developing chamber and the toner accommodating chamber are arranged along the width direction of the box body, and the developing chamber
- the chamber and the toner storage chamber are separated by a partition wall and communicated through the communication port;
- the frame of the toner replenishment bin is connected above the second cover part, and the frame of the toner replenishment bin and the third cover part form a toner replenishment bin.
- a cover member and a third cover member are arranged along the width direction of the box body.
- a further solution is that the end wall of the box body is provided with a powder feeding port, and the powder feeding port is provided with a sealing end cover.
- Another process cartridge provided by the present invention includes a box body, which has an accommodating cavity; a developing roller, rotatably installed in the accommodating cavity; a photosensitive drum, rotatably installed in the box body; a charging roller, and the photosensitive drum
- the outer peripheral surface of the charging roller is in contact with the developing roller; wherein, the developing roller is in contact with the outer peripheral surface of the photosensitive drum; and the absolute value of the charging voltage obtained by the charging roller is higher than the absolute value of the developing bias obtained by the developing roller, and the photosensitive
- the absolute value of the voltage on the exposed area of the drum is smaller than the absolute value of the developing bias voltage.
- a further scheme is that the charging voltage, the developing bias voltage, and the voltage in the exposure area are all positive voltages, or the charging voltage, the developing bias voltage, and the voltage in the exposure area are all negative voltages.
- a further solution is that a cleaning member is also provided in the case, the cleaning member is located in the accommodating cavity, the cleaning member is installed in the case and extends in a direction parallel to the charging roller, and the cleaning member contacts the outer peripheral surface of the charging roller.
- the cleaning member is made of conductive material; the axial end of the charging roller is provided with a charging roller electrode, and both the cleaning member and the charging roller are electrically connected to the charging roller electrode.
- Another process cartridge provided by the present invention comprises a box body, the box body has an accommodating cavity; a developing roller is rotatably installed in the accommodating cavity; a photosensitive drum is rotatably installed in the box body; a charging roller is connected with the photosensitive drum In contact with the outer peripheral surface, the charging roller and the developing roller are arranged at intervals; and, the developing roller is in contact with the outer peripheral surface of the photosensitive drum; at the contact point between the photosensitive drum and the charging roller, the photosensitive loading voltage of the toner remains on the charging roller, and when the photosensitive drum is exposed, the exposure area
- the absolute value of the voltage formed on it is less than the absolute value of the charging voltage, the developing roller is loaded with voltage, an electric field is formed between the developing roller and the photosensitive drum, and the residual toner on the non-exposed area of the photosensitive drum is transferred from the photosensitive drum to the developing roller, and the developing roller The toner on the photosensitive drum is transferred to the exposed area of the photosensitive drum.
- the electronic imaging device provided by the present invention includes a body, in which a process box installation cavity is provided, and the above-mentioned process box is detachably installed in the process box installation cavity.
- the carbon powder can be effectively transferred from the non-exposed area on the photosensitive drum to the developing roller by using the voltage difference between the charging roller and the developing roller, And use the toner on the developing roller to transfer to the exposure area of the photosensitive drum, so that the residual toner on the non-exposed area on the photosensitive drum can be effectively transferred to the developing roller, and the transfer of toner is realized by using the electric field. Prevent the remaining toner on the photosensitive drum from affecting the next printing operation, thereby improving the printing quality.
- the charging roller is cleaned by setting a cleaning member, so that the waste toner that is cleaned by the cleaning member is first transferred to the photosensitive drum, and then the waste toner is transferred to the developing roller under the action of the electric field force. Rotate into the developing chamber to realize the reuse of waste toner and improve the utilization rate of toner.
- the charging roller can be cleaned by setting the cleaning member, so the cleaning blade is eliminated, thereby avoiding damage to the photosensitive coating on the surface of the photosensitive drum by the blade, reducing product cost and improving product life.
- the processing box does not need to collect waste toner
- the waste toner holding chamber can be eliminated, the capacity of the toner bin can be increased, the capacity of the processing box can be expanded, the output of printed pages can be improved, and the cost performance of the product can be improved.
- the cleaning member Since the cleaning member has certain elasticity, it can better clean the charging roller. Moreover, the cleaning member can conduct electricity, which can realize the change of the electrical property of the toner. For example, under normal circumstances, when the photosensitive drum is exposed and developed, the charge of the toner on the surface is negative, but the electrical property may change during the working process. If it is not treated, the toner in the developing chamber will form agglomerates due to the attractive force between the positive and negative charges after the waste toner enters the developing chamber, which will affect the printing.
- the cleaning member by electrifying the cleaning member with conductive performance, the cleaning member neutralizes the positive charge of the carbon powder and charges the carbon powder with a negative charge, so as to ensure the balance between the charge of the waste toner and the charge of the carbon powder in the developing chamber.
- the electrical properties are consistent, preventing the toner from agglomerating or agglomerating, and ensuring the printing effect.
- the present invention can flexibly adjust the position of the cleaning member according to the position of the photosensitive drum to ensure the charging effect and cleaning effect.
- the cleaning member wraps a part of the charging roller, the contact area between the cleaning member and the charging roller is larger, and good cleaning of the charging roller is achieved during the rotation of the charging roller.
- the cleaning member is in rotatable contact with the charging roller, so that rolling friction is formed between the two, the friction force is small, and the area where the cleaning member can contact the charging roller is larger, and the cleaning effect is better.
- the present invention since the present invention does not need to provide a waste toner storage chamber, the space for accommodating toner in the box body is larger, and the capacity of the toner bin is increased.
- the present invention can further increase the capacity of the toner in the box body by adding a toner replenishing chamber, realize the expansion of the capacity of the processing box, increase the output of printed pages of the product, and improve the cost performance of the product.
- the process box of the present invention since the process box of the present invention does not produce waste toner, there will be no waste toner bin with a small capacity that cannot accommodate a large-capacity toner bin under the same number of printed pages due to the increased capacity of the toner replenishment bin. Due to the amount of waste toner generated, there is a problem that printing cannot be continued.
- the present invention removes the part of the first cover part located on the upper side of the toner accommodating cavity, and installs a toner replenishing bin on the upper side of the toner accommodating cavity, thereby rationally and effectively utilizing the accommodating space of the printer and increasing the capacity of the process box , give full play to the maximum benefits of printers and process boxes, and save social resources.
- the absolute value of the charging voltage applied by the charging roller to the surface of the photosensitive drum is relatively high, and the absolute value of the voltage in the exposure area is low, the charge carried by the carbon powder is less, that is, the carbon powder
- the absolute value of the voltage of the powder is very small or even close to electrical neutrality, and the absolute value of the voltage on the exposure area of the photosensitive drum is smaller than the absolute value of the development bias. Therefore, in the area where the photosensitive drum contacts the developing roller, the exposure area of the photosensitive drum A large potential difference is formed between the developing roller and the non-exposed area of the photosensitive drum and the developing roller. The toner will be transferred under the action of the electric field force.
- the toner will be transferred from the photosensitive drum
- the surface of the non-exposed areas is transferred to the developer roller, and the toner on the developer roller will be transferred to the exposed areas.
- the transfer of toner powder is realized through the action of the electric field force, so as to avoid printing quality being affected by excessive toner powder remaining on the non-exposed area of the photosensitive drum.
- Fig. 1 is a structural view of a first embodiment of a process cartridge according to the present invention.
- Figure 2 is a sectional view of a first embodiment of the process cartridge of the present invention.
- Fig. 3 is an exploded view of the structure of the first embodiment of the process cartridge of the present invention.
- Fig. 4 is a structural diagram of a second embodiment of the process cartridge of the present invention.
- Figure 5 is a sectional view of a second embodiment of the process cartridge of the present invention.
- Fig. 6 is a cross-sectional view of the frame body and the third cover part of the powder supply chamber in the second embodiment of the process cartridge of the present invention.
- Fig. 7 is a partial enlarged view of the position of the powder supply port in the second embodiment of the process cartridge of the present invention.
- the process cartridge of this embodiment includes a cartridge body 1 , a photosensitive drum 2 , a charging roller 3 , a developing roller 4 , a powder feeding roller 8 , an agitating frame 5 , a cleaning member 6 and a powder outlet knife 9 .
- the cleaning member 6 is a cleaning brush.
- the box body 1 includes a powder bin frame 11 , a first cover part 12 , a second cover part 13 , a conductive end cover 111 and a driving end end cover 112 , and the first cover part 12 and the powder bin frame 11 enclose an accommodating cavity 101 , the second cover part 13 and the powder bin frame 11 enclose the toner containing chamber 102, the powder bin frame 11 is provided with a partition wall 14, the partition wall 14 and the second cover part 13 are integrally formed, and the partition wall 14 is provided with The communication opening 141 , the accommodating chamber 101 and the toner accommodating chamber 102 are separated by the partition wall 14 and communicated through the communication opening 141 .
- An opening 16 is formed between the first cover member 12 and the powder bin frame 11, the opening 16 communicates with the accommodating chamber 101, and the opening 16 and the laser passage 15 are oppositely arranged in the width direction W of the box body 1, and the photosensitive drum 2 can rotate installed in the opening 16.
- the conductive end cover 111 and the driving end cover 112 are respectively arranged at both ends of the box body 1 in the longitudinal direction, the conductive end cover 111 is provided with a chip 113 and a charging roller electrode 114, and the charging roller electrode 114 is connected to the end of the charging roller 3. electrical connection.
- the first cover member 12 is located above the second cover member 13, a laser channel 15 is provided between the first cover member 12 and the second cover member 13, and the laser beam is irradiated on the photosensitive drum 2 through the laser channel 15, and the first cover member 12
- a handle 121 is provided in the middle of the length direction, and the handle 121 is located on the side of the first cover member 12 away from the photosensitive drum 2. The handle 121 can facilitate the user to load the process cartridge into the printer or take it out from the printer.
- the accommodating chamber 101 includes a first chamber 1011 and a second chamber 1012, the first chamber 1011 is connected between the second chamber 1012 and the toner accommodating chamber 102, the first chamber 1011 is a developing chamber, and the powder feeding roller 8 is located in the first chamber 1011.
- the fixed end of the powder outlet knife 9 is installed on the second cover member 13, the free end of the powder outlet knife 9 abuts against the outer peripheral surface of the developing roller 4, and a sealing scraper is provided on the side opposite to the powder outlet knife 9 of the developing roller 4 41, the fixed end of the sealing blade 41 is fixedly connected with the powder bin frame 11, the free end of the sealing blade 41 abuts against the outer peripheral surface of the developing roller 4, and the powder knife 9, the developing roller 4 and the sealing blade 41 Cooperating to separate the first chamber 1011 and the second chamber 1012 , the photosensitive drum 2 , the charging roller 3 and the cleaning member 6 are all arranged in parallel and located in the second chamber 1012 .
- Both ends of the photosensitive drum 2, the developing roller 4 and the powder feeding roller 8 can be rotatably supported on the two end walls of the powder bin frame body 11, and gears are installed on the end wall of the box body 1 near the end cover 112 of the driving end.
- System 115, the gear system 115 drives the photosensitive drum 2, the developing roller 4, the powder feeding roller 8 and the stirring frame 5 etc. to rotate.
- the stirring frame 5 is installed in the toner containing chamber 102 for transferring the toner in the toner containing chamber 102 to the developing chamber 1011 .
- Both the charging roller 3 and the developing roller 4 are in contact with the outer peripheral surface of the photosensitive drum 2 , and the charging roller 3 and the developing roller 4 are spaced apart. Both ends of the charging roller 3 are provided with a bracket 31 and a spring 32, the end of the charging roller 3 is mounted on the bracket 31, the spring 32 abuts against the bracket 31 along the radial direction of the charging roller 3, and both ends of the first cover member 12 are A guide chute 122 is provided, the bracket 31 and the spring 32 are installed in the guide chute 122 , and the bracket 31 is slidingly matched with the guide chute 122 , the elastic restoring force of the spring 32 forces the charging roller 3 to approach and abut against the photosensitive drum 2 .
- the bracket 31 is made of conductive material, and the charging roller electrode 114 is connected to the spring 32 .
- both the developing roller 4 and the charging roller 3 are located on the side of the photosensitive drum 2 close to the laser channel 15 .
- the developing roller 4 is located below the charging roller 3, and a laser passage area 17 is formed between the charging roller 3 and the developing roller 4. The projections of the laser channel 15, the laser passage area 17 and the photosensitive drum 2 along the width direction W of the cartridge body 1 overlap.
- the inner wall of the accommodation chamber 101 is provided with a supporting wall 18 , and the cleaning member 6 is in the shape of a strip, which is fixed on the supporting wall 18 and abuts against the peripheral surface of the charging roller 3 .
- the side wall of the cleaning member 6 facing the charging roller 3 is arc-shaped, and the arc-shaped side wall is bent in a direction away from the charging roller 3 and closely attached to the outer peripheral surface of the charging roller 3 .
- the upper edge of the opening 16 is provided with a sealing member 7, the sealing member 7 extends along the length direction of the photosensitive drum 2, the fixed end of the sealing member 7 is fixedly connected with the box body 1, and the free end of the sealing member 7 is connected with the outer peripheral surface of the photosensitive drum 2. Abut. Only the charging roller 3 , the developing roller 4 and the sealing member 7 are in contact with the outer peripheral surface of the photosensitive drum 2 , and no scraper is in contact with the surface of the photosensitive drum 2 .
- a powder inlet is provided on the end wall of the box body 1, and a sealing end cover 150 is arranged at the powder inlet, so that after the toner in the processing box is used up, the user can open the sealing end cover 150 by himself. And fill the toner into the process box through the powder filling port, after adding the toner, the process box can continue to be used.
- the absolute value of the charging voltage applied to the charging roller 3 by the laser printer is higher than the absolute value of the developing bias applied to the developing roller 4, and when the photosensitive drum 2 is exposed, the photosensitive drum 2 on the exposed area
- the absolute value of the voltage is smaller than the absolute value of the developing bias voltage.
- the charging voltage applied to the charging roller 3 by the laser printer is -500V
- the voltage on the exposure area of the photosensitive drum 2 is -100V
- the developing bias voltage is -300V.
- the carbon powder has a small amount of charge.
- the voltage polarity of the carbon powder is the same as that of the charging roller and the developing roller, for example, they are all negative voltages, or they are electrically neutral.
- the charging roller 3 charges the photosensitive drum 2 first, that is, the downstream end where the charging roller 3 is in contact with the photosensitive drum 2, and the voltage on the surface of the photosensitive drum 2 is about -500V, remaining The voltage of the toner on the surface of the photosensitive drum 2 is also about -500V.
- the upstream and downstream of this embodiment are explained by the rotation direction of the photosensitive drum 2 in a printing cycle. Specifically, in a printing cycle, the photosensitive drum 2 first contacts the charging roller 3, and the charging roller 3 loads the photosensitive drum 2. Then the photosensitive drum 2 is irradiated by the laser beam to realize exposure, and then the photosensitive drum 2 is in contact with the developing roller 4 and is loaded with a developing bias. Therefore, the downstream end of the photosensitive drum 2 in contact with the charging roller 3 is the contact between the photosensitive drum 2 and the charging roller 3 The area before post exposure.
- the exposure area With the rotation of the photosensitive drum 2, during exposure, the area where the laser beam irradiates on the photosensitive drum 2 is the exposure area. After exposure, the voltage on the exposure area of the photosensitive drum 2 is -100V, while the non-exposed area is not exposed to the laser beam. When irradiated, the voltage is still -500V, so the voltage of the toner in the exposed area is also about -100V, and the voltage of the toner in the non-exposed area is about -500V.
- the developing bias of the developing roller 4 is -300V, and the voltage of the toner on the developing roller 4 is about -300V, which is higher than that of the photosensitive drum. 2
- the voltage of the exposed area but less than the voltage of the non-exposed area of the photosensitive drum 2. Since the carbon powder has a small amount of negative charge, under the action of the electric field force, the carbon powder on the non-exposed area of the photosensitive drum 2 is transferred to the developing roller 4, and the carbon powder on the developing roller 4 will be transferred to the photosensitive drum 2 on the exposure area. In this way, an electric field area is formed in the contact area between the photosensitive drum 2 and the developing roller 4.
- the photosensitive drum 2 and the developing roller 4 are in direct contact, that is, there is no gap between the photosensitive drum 2 and the charging roller 4, it is beneficial for the carbon powder to transfer quickly between the photosensitive drum 2 and the developing roller 4, so that the photosensitive drum 2.
- the toner in the non-exposed area can be fully transferred to the developing roller 4, so as to realize the effective recycling of the toner, and ensure that the toner in the developing roller 4 can be fully transferred to the exposed area of the photosensitive drum 2, thereby ensuring printing quality.
- the charging voltage of the charging roller, the voltage on the exposed area of the photosensitive drum, and the developing bias of the developing roller are all positive voltages, and the toner has a small amount of positive charge, due to the potential difference between the exposed area of the photosensitive drum and the developing roller, , and there is also a potential difference between the developing roller and the non-exposed area of the photosensitive drum, so under the action of the electric field force, the transfer of toner can also be realized, so that there is little toner remaining on the non-exposed area of the photosensitive drum, which will not affect printing quality.
- the cleaning member realizes the cleaning of the charging roller, so the cleaning blade can be eliminated, thereby avoiding the damage of the photosensitive coating on the surface of the photosensitive drum by the scraper. Reduce product costs while increasing product life.
- the processing box does not need to collect waste toner, the waste toner holding chamber can be eliminated, the capacity of the toner bin can be increased, the capacity of the processing box can be expanded, the output of printed pages can be improved, and the cost performance of the product can be improved.
- the box body 21 further includes a frame body 214 and a third cover part 215 of the powder replenishment bin.
- the toner supply bin frame body 214 is connected above the second cover part 213, the toner replenishment bin frame body 214 and the third cover part 215 enclose the toner replenishment bin 203, the toner replenishment bin 203 is located above the toner accommodating chamber 202 and
- the laser channel 216 communicates with the toner storage cavity 202 and is located between the second cover part 213 and the frame body 214 of the toner supply bin.
- the first cover member 212 and the third cover member 215 are arranged along the width direction W of the case body 21 .
- Two powder filling ports 2131 are opened on the second cover part 213 , and the two powder filling ports 2131 are respectively arranged at two ends close to the lengthwise direction of the toner containing cavity 202 .
- Two supply ports 2140 are opened at the bottom of the powder replenishment bin frame 214 , and one supply port 2140 is connected to a powder replenishment port 2131 in a sealed manner.
- the frame body 214 of the powder replenishment bin is detachably fixedly connected with the frame body 211 of the powder bin 214 and the second cover part 213 through buckles 2141 .
- the bottom wall of the toner supply bin frame 214 includes a first inclined wall 2142 and a second inclined wall 2143, the first inclined wall 2142 and the second inclined wall 2143 are arranged along the length direction of the toner replenishment bin 203, and a supply port 2140 is provided At the end of the first inclined wall 2142 in the length direction, the first inclined wall 2142 is inclined toward the supply port 2140 .
- Another supply port 2145 is provided at an end portion of the second inclined wall 2143 in the length direction, and the second inclined wall 2143 is inclined toward the supply port 2145 .
- the arrangement of the first inclined wall 2142 and the second inclined wall 2143 facilitates the toner in the toner replenishment bin 203 to enter the toner receiving chamber 202 from the supply port under the action of gravity.
- the first inclined wall 2142 , the second inclined wall 2143 and the second cover member 213 enclose the laser channel 216 .
- the capacity of the toner in the box body can be further increased, the capacity of the processing box can be expanded, the output of printed pages of the product can be increased, and the cost performance of the product can be improved.
- the processing box of the present invention can make full use of toner, therefore also can not exist because the capacity of the processing box is increased by the toner replenishment bin, the waste toner bin of small capacity cannot hold the toner bin of large capacity. The amount of waste toner generated is reduced, and printing cannot continue.
- the cleaning brush is made of fibers with conductive carbon black.
- the cleaning member is electrically connected to the charging roller electrode.
- the cleaning member can conduct electricity, which can change the electrical properties of the toner. For example, under normal circumstances, when the photosensitive drum is exposed and developed, the toner on the surface of the photosensitive drum is charged negatively, but the electrical property may change during the working process. If it is not treated, the toner in the developing chamber will form agglomerates due to the attractive force between the positive and negative charges after the waste toner enters the developing chamber, which will affect the printing.
- the cleaning member by electrifying the cleaning member with conductive performance, recharges the carbon powder, so that the carbon powder is negatively charged, ensuring that the charge carried by the waste toner is consistent with the charge carried by the carbon powder in the developing chamber. Prevent toner from clumping or agglomerating to ensure printing effect.
- the process box also includes a cleaning bracket and a cleaning electrode.
- the cleaning electrode is arranged on the conductive end cover and is electrically connected with the cleaning bracket.
- the cleaning member is installed on the free end of the cleaning bracket.
- the cleaning bracket can conduct electricity.
- the electrodes are electrically connected.
- the cleaning support is the scraper support on the existing processing box
- the cleaning electrode is the scraper electrode on the existing processing box, cancels the blade of the scraper on the existing processing box, and installs a cleaning brush at the position where the blade is installed.
- the scraper electrode supplies power to the cleaning member to realize the secondary charging of the carbon powder by the cleaning member, so that the electrical properties of the carbon powder can be changed.
- the cleaning member may also be cylindrical and rotatably mounted on the box body.
- the cleaning member can be directly installed on the box body, or a support rod can be installed on the box body, the fixed end of the support rod is connected on the box body, and the cleaning member is installed on the free end of the support rod.
- the cleaning member can also be made of sponge, foamed cotton material or conductive material.
- the side wall of the cleaning member facing the charging roller can also be flat or arc-shaped and the radian is not consistent with that of the outer peripheral surface of the charging roller. The cleaning member abuts against the outer peripheral surface of the charging roller to increase friction and achieve good Cleaning effect.
- the first cover part and the third cover part can be two separate components or integrally formed. The above changes can also achieve the purpose of the present invention.
- the electronic imaging device of this embodiment may be a laser printer, and the laser printer includes a body, and a process box installation cavity is arranged in the body, and the process box of any one of the above embodiments is detachably installed in the process box installation cavity.
- the process box of the present invention is detachably installed in the electronic imaging device, and carbon powder is contained in the process box. Since the carbon powder remaining on the photosensitive drum can be transferred by the effect of electric field force, that is, the carbon powder can be transferred under the effect of electric field force. The transfer between the photosensitive drum and the developing roller is realized, thereby improving the utilization rate of toner, reducing the wear on the photosensitive drum, and prolonging the service life of the process cartridge.
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Abstract
一种涉及打印耗材领域的包括处理盒的电子成像设备,处理盒包括盒体(1),盒体(1)具有容纳腔(101);显影辊(4),可旋转地安装在容纳腔(101)内;感光鼓(2),可旋转地安装在盒体(1)内;充电辊(3),与感光鼓(2)的外周面接触,充电辊(3)与显影辊(4)间隔布置;清洁构件(6),位于容纳腔(101)内,清洁构件(6)安装在盒体(1)内并沿平行于充电辊(3)的方向延伸,清洁构件(6)与充电辊(3)的外周面接触;并且,显影辊(4)与感光鼓(2)的外周面接触。电子成像设备包括机体,并且可拆卸的安装有处理盒。
Description
本发明涉及电子成像设备的领域,具体地说,是涉及一种处理盒以及具有这种处理盒的电子成像设备。
电子照相式的成像形成设备,如激光打印机,是一种利用电子照相原理,至少经过充电,曝光,显影,转印,定影,清洁的过程,在图像形成介质(如纸张)上形成图像的设备。成像设备上使用的打印消耗的材料的装置一般称为处理盒、处理盒或打印耗材。
通常显影所消耗的碳粉一般由处理盒提供,当处理盒内的碳粉用完后,更换新的处理盒。现有一种处理盒,包括粉仓、搅拌架、上框架、清洁刮刀和感光鼓,搅拌架可旋转地安装在粉仓内,清洁刮刀和上框架围成废粉容纳腔。通过在处理盒上的刮刀与感光鼓接触将感光鼓上残留的碳粉清洁到废粉容纳腔。这样一方面需要在处理盒上设置储存废粉的空间,也就是废粉容纳腔,另外刮刀工作中长期与旋转感光鼓摩擦会对感光鼓表面感光涂层有破坏,影响感光鼓曝光以及充电辊对其充电和消电效果,这些影响会进一步的导致打印中产生更多的废粉。另外这些积聚在感光鼓上废粉,也很容易导致充电辊上粘结废碳粉而被污染,进而影响充电辊的充电和消电效果,因此刮刀和废粉对打印质量的影响非常大。
现有另一种的处理盒为了扩大产品的打印页产量,从而设置了补粉仓以增加处理盒的储粉量,但是此种处理盒在工作过程中会产生更多的废粉,由于废粉仓的容积有限,导致小容量的废粉仓容纳不下大容量的粉仓在相同打印页数下所产生的废碳粉量,因此,废粉仓中废粉达到一定量后无法继续打印,并且废粉仓内废粉过多时也会导致内部废粉结块。
上述两种处理盒在安装到激光打印机后,废粉仓位于靠近定影器的位置,工作时,废粉仓的温度可能高达50度以上,导致废粉仓内的碳粉十分容易结块。
现有的另一种处理盒内设置有感光鼓、充电辊、显影辊,充电辊与感光鼓相接触,并且充电辊的一侧设置有清洁毛刷用于对充电辊上残留的废粉进行清洁。这种处理盒不设置清洁刮刀对感光鼓表面的残留碳粉进行清洁,感光鼓上的残留碳粉转移到充电辊后由清洁毛刷进行清洁,并经过感光鼓重新回到显影仓以再次利用。
然而,这种处理盒通常是适用于跳跃式显影的处理盒,即感光鼓与显影辊之间并不直接接触,即感光鼓与显影辊之间具有间隙,碳粉往往是在感光鼓与显影辊之间来回跳动,碳粉难以实现在感光鼓与显影辊之间的转移,导致感光鼓上仍残留大量的碳粉。但由于这种处理盒并不设置清洁刮刀,导致残留在感光鼓上的碳粉无法有效的转移到充电辊上,在下一个显影周期时,残留在感光鼓上的碳粉将转印到纸张上,进而影响打印质量。
本发明的第一目的是提供一种能够延长使用寿命,并且能够扩大其容量、打印质量高的处理盒。
本发明的第二目的是提供一种具有上述处理盒的电子成像设备。
为实现上述第一目的,本发明提供的处理盒包括盒体,盒体具有容纳腔;显影辊,可旋转地安装在容纳腔内;感光鼓,可旋转地安装在盒体内;充电辊,与感光鼓的外周面接触,充电辊与显影辊间隔布置;清洁构件,位于容纳腔内,清洁构件安装在盒体内并沿平行于充电辊的方向延伸,清洁构件与充电辊的外周面接触;并且,显影辊与感光鼓的外周面接触。
一个优选的方案是,盒体上还设置有开口和激光通道,开口与容纳腔连通,开口和激光通道在盒体的宽度方向上相对设置。
一个优选的方案是,清洁构件为清洁毛刷,或者清洁构件由海绵或发泡棉材料制成。
一个优选的方案是,清洁构件由导电材料制成;充电辊的轴向端设置有充电辊电极,清洁构件和充电辊均与充电辊电极电连接。
一个优选的方案是,盒体设置有支撑壁,清洁构件安装在支撑壁上;或者盒体上安装有支撑杆,支撑杆的固定端连接在盒体上,清洁构件安装在支撑杆的自由端。
一个优选的方案是,清洁构件固定在盒体上,清洁构件朝向充电辊的侧壁呈弧形,该弧形的侧壁朝向远离充电辊的方向弯曲。
一个优选的方案是,清洁构件呈圆柱状并可旋转地安装在盒体上。
一个优选的方案是,开口的上沿设置有密封件,密封件沿着感光鼓的长度方向延伸,密封件的固定端与盒体固定连接,密封件的自由端与感光鼓的外周面抵接;仅充电辊、显影辊和密封件与感光鼓的外周面接触。
一个优选的方案是,在盒体的宽度方向上,显影辊和充电辊均位于感光鼓靠近激光通道的一侧;显影辊位于充电辊的下方,充电辊与显影辊之间形成激光通过区,激光通道、激光通过区和感光鼓沿着盒体的宽度方向的投影重叠。
一个优选的方案是,容纳腔包括相互连通且沿着盒体的宽度方向布置的碳粉容纳腔和显影腔室,激光通道位于碳粉容纳腔的上方。
进一步的方案是,盒体包括粉仓框体、第一盖部件和第二盖部件,粉仓框体内设置有间隔壁,间隔壁上开设有连通口;第一盖部件与粉仓框体围成容纳腔,第二盖部件与粉仓框体围成碳粉容纳腔,显影腔室和碳粉容纳腔沿着盒体的宽度方向布置,显影腔室和碳粉容纳腔通过间隔壁分隔开并通过连通口连通;第一盖部件位于第二盖部件的上方,激光通道位于第一盖部件和第二盖部件之间。
进一步的方案是,盒体还包括碳粉补充仓,碳粉补充仓位于碳粉容纳腔的上方并与碳粉容纳腔连通,激光通道位于碳粉补充仓与碳粉容纳腔之间。
进一步的方案是,盒体包括粉仓框体、第一盖部件、第二盖部件、补粉仓框体和第三盖部件;粉仓框体内设置有间隔壁,间隔壁上开设有连通口;第一盖部件与粉仓框体围成容纳腔,第二盖部件与粉仓框体围成碳粉容纳腔,显影腔室和碳粉容纳腔沿着盒体的宽度方向布置,显影腔室和碳粉容纳腔通过间隔壁分隔开并通过连通口连通;补粉仓框体连接在第二盖部件的上方,补粉仓框体与第三盖部件围成碳粉补充仓,第一盖部件和第三盖部件沿着盒体的宽度方向布置。
更进一步的方案是,盒体的端壁上设置有加粉口,加粉口设置有密封端盖。
本发明提供的另一种处理盒,包括盒体,该盒体具有容纳腔;显影辊,可旋转地安装在容纳腔内;感光鼓,可旋转地安装在盒体内;充电辊,与感光鼓的外周面接触,充电辊与显影辊间隔布置;其中,显影辊与感光鼓的外周面接触;并且,充电辊获取的充电电压的绝对值高于显影辊获取的显影偏压的绝对值,感光鼓曝光区域上的电压的绝对值小于显影偏压的绝对值。
进一步的方案是,充电电压与显影偏压、曝光区域的电压均为正电压,或者充电电压与显影偏压、曝光区域的电压均为负电压。
进一步的方案是,盒体内还设置有清洁构件,清洁构件位于容纳腔内,清洁构件安装在盒体内并沿平行于充电辊的方向延伸,清洁构件与充电辊的外周面接触。
进一步的方案是,清洁构件由导电材料制成;充电辊的轴向端设置有充电辊电极,清洁构件和充电辊均与充电辊电极电连接。
本发明提供的另一种处理盒,包括盒体,盒体具有容纳腔;显影辊,可旋转地安装在容纳腔内;感光鼓,可旋转地安装在盒体内;充电辊,与感光鼓的外周面接触,充电辊与显影辊间隔布置;并且,显影辊与感光鼓的外周面接触;感光鼓与充电辊接触处,充电辊残留有碳粉的感光加载电压,感光鼓曝光时,曝光区域上形成的电压的绝对值小于充电电压绝对值,显影辊被加载电压,显影辊与感光鼓之间形成电场,在感光鼓非曝光区域上的残留碳粉从感光鼓转移至显影辊,显影辊上的碳粉转移至感光鼓的曝光区域。
为实现上述第二目的,本发明提供的电子成像设备包括机体,机体内设置有处理盒安装腔,处理盒安装腔内可拆卸的安装有上述的处理盒。
本发明所提供的处理盒的感光鼓与显影辊相接处,利用充电辊、显影辊之间的电压差可以使得碳粉能够有效的从感光鼓上的非曝光区域转印到显影辊上,并且使用显影辊上的碳粉转移到感光鼓的曝光区域,这样,可以使得感光鼓上非曝光区域上的残留碳粉能够有效的转移到显影辊上,利用电场的作用实现碳粉的转移,避免感光鼓上残留的碳粉影响下一次的打印操作,从而提高打印质量。
并且,通过设置清洁构件对充电辊进行清洁,这样,被清洁构件清洁下来的废粉首先转移到感光鼓上,接着废粉在电场力的作用下转移到显影辊上后,随着显影辊的转动进入显影腔室,实现废粉的再利用,提高了碳粉的利用率。
另外,通过设置清洁构件可以实现对充电辊的清洁,因此取消清洁刮刀,从而避免刮刀对感光鼓表面感光涂层的破坏,降低产品成本同时提升产品的寿命。
再次,由于处理盒不需要收集废粉,因此可取消废粉容纳腔,增大粉仓的容量,实现处理盒容量的扩大,提高打印页产量,提高产品性价比。
此外,由于没有废粉容纳腔,本来设置废粉容纳腔的位置不再需要装碳粉,因此可避免现有技术中由于废粉容纳腔距离定影器的位置过近而造成废粉仓内的碳粉容易结块的问题。
由于清洁构件具有一定的弹性,能够更好地实现对充电辊的清洁。而且,清洁构件能够导电,这样可实现对碳粉电性的改变,例如,通常情况下,感光鼓曝光显影时,表面的碳粉所带电荷为负电荷,但是在工作过程中电性可能会发生改变而带上正电荷,若未对其进行处理,废粉进入显影腔室后,由于正负电荷之间的吸引力,会造成显影腔室内的碳粉成团而影响打印。本发明通过向具有导电性能的清洁构件通电,清洁构件将碳粉所带的正电荷中和并为碳粉带上负电荷,保证废粉所带电荷与显影腔室内的碳粉所带电荷的电性一致,防止碳粉成团或结块,保证打印效果。
此外,本发明可根据感光鼓的位置灵活调整清洁构件的位置,保证充电效果和清洁效果。
由于,清洁构件包裹充电辊的一部分,这样清洁构件与充电辊的接触面积更大,在充电辊旋转的过程中实现对充电辊的良好清洁。而清洁构件与充电辊可旋转地接触,这样两者之间形成滚动摩擦,摩擦力小,且清洁构件能够与充电辊接触的面积更大,清洁效果更好。
此外,由于处理盒内仅充电辊、显影辊和密封件与感光鼓的外周面接触,没有刮刀与感光鼓表面接触,降低了产品成本,提升了产品的寿命。
另外,由于本发明无需设置废粉容纳腔,因此,盒体内部容纳碳粉的空间更大,粉仓的容量增大。此外,本发明通过增设碳粉补充仓,可以进一步提高盒体中碳粉的容量,实现处理盒容量扩大,提高产品打印页产量,提高产品性价比。同时,由于本发明的处理盒没有废粉产生,因此也不会存在由于碳粉补充仓增加了处理盒的容量而导致小容量的废粉仓容纳不下大容量的粉仓在相同打印页数下所产生的废碳粉量,而出现无法继续打印的问题。
而且,现有技术中由于激光通道将第一盖部件与碳粉容纳腔分隔开,因此第一盖部件位于碳粉容纳腔上侧的部分没有得到充分利用,而造成处理盒的容量较小,本发明通过将第一盖部件位于碳粉容纳腔上侧的部分去除,并在碳粉容纳腔的上侧安装碳粉补充仓,从而合理有效利用了打印机的容纳空间,提高处理盒的容量,充分发挥打印机和处理盒的最大效益,节约社会资源。
另外,通过在盒体的端壁上设置有加粉口,可以方便用户自行添加碳粉,有利于用户的加粉操作。
本发明提供的另一种处理盒中,由于充电辊向感光鼓表面施加的充电电压的绝对值较高,而曝光区域的电压的绝对值较低,碳粉所带的电荷较少,即碳粉的电压绝对值很小甚至接近于电中性,且感光鼓曝光区域上的电压的绝对值小于显影偏压的绝对值,因此,在感光鼓与显影辊接触的区域,感光鼓的曝光区域与显影辊之间形成较大的电势差,感光鼓的非曝光区域与显影辊之间也形成较大的电势差,碳粉将在电场力的作用下实现转移,具体的,碳粉将从感光鼓非曝光区域的表面转移到显影辊上,而显影辊上的碳粉将转移到曝光区域上。这样,通过电场力的作用实现碳粉的转移,以避免感光鼓的非曝光区域上残留过多的碳粉而影响打印质量。
图1是本发明处理盒第一实施例中的结构图。
图2是本发明处理盒第一实施例的剖视图。
图3是本发明处理盒第一实施例的结构分解图。
图4是本发明处理盒第二实施例的结构图。
图5是本发明处理盒第二实施例的剖视图。
图6是本发明处理盒第二实施例中补粉仓框体和第三盖部件的剖视图。
图7是本发明处理盒第二实施例中补粉口位置的局部放大图。
以下结合附图及实施例对本发明作进一步说明。
处理盒第一实施例:
参见图1至图3,本实施例的处理盒包括盒体1、感光鼓2、充电辊3、显影辊4、送粉辊8、搅拌架5、清洁构件6和出粉刀9。清洁构件6为清洁毛刷。
盒体1包括粉仓框体11、第一盖部件12、第二盖部件13、导电端端盖111和驱动端端盖112,第一盖部件12与粉仓框体11围成容纳腔101,第二盖部件13与粉仓框体11围成碳粉容纳腔102,粉仓框体11内设置有间隔壁14,间隔壁14与第二盖部件13一体成型,间隔壁14上开设有连通口141,容纳腔101和碳粉容纳腔102通过间隔壁14分隔开并通过连通口141连通。
第一盖部件12与粉仓框体11之间形成有开口16,开口16与容纳腔101连通,且开口16和激光通道15在盒体1的宽度方向W上相对设置,感光鼓2可旋转地安装在开口16处。
导电端端盖111和驱动端端盖112分别设置在盒体1长度方向的两端,导电端端盖111上设置有芯片113和充电辊电极114,充电辊电极114与充电辊3的端部电连接。第一盖部件12位于第二盖部件13的上方,第一盖部件12和第二盖部件13之间设有激光通道15,激光通过激光通道15照射到感光鼓2上,第一盖部件12长度方向的中部设置有把手121,把手121位于第一盖部件12远离感光鼓2的一侧,把手121可方便用户将处理盒装入打印机或从打印机中取出。
容纳腔101包括第一腔室1011和第二腔室1012,第一腔室1011连接在第二腔室1012与碳粉容纳腔102之间,第一腔室1011为显影腔室,送粉辊8位于第一腔室1011内。出粉刀9的固定端安装在第二盖部件13上,出粉刀9的自由端与显影辊4的外周面抵接,显影辊4与出粉刀9相对的一侧设置有密封刮片41,密封刮片41的固定端与粉仓框体11固定连接,密封刮片41的自由端与显影辊4的外周面抵接,出粉刀9、显影辊4和密封刮片41三者配合将第一腔室1011和第二腔室1012分隔开,感光鼓2、充电辊3和清洁构件6均平行设置且均位于第二腔室1012内。感光鼓2、显影辊4和送粉辊8的两端均可旋转地支撑在粉仓框体11的两端壁上,盒体1靠近驱动端端盖112的一端的端壁上安装有齿轮系115,齿轮系115驱动感光鼓2、显影辊4、送粉辊8以及搅拌架5等旋转。搅拌架5安装在碳粉容纳腔102内,用于将碳粉容纳腔102内的碳粉传送至显影腔室1011内。
充电辊3和显影辊4均与感光鼓2的外周面接触,且充电辊3与显影辊4间隔布置。充电辊3的两端均设置有支架31和弹簧32,充电辊3的端部安装在支架31上,弹簧32沿充电辊3的径向抵接支架31,第一盖部件12的两端均设置有导向滑槽122,支架31和弹簧32均安装在导向滑槽122内,且支架31与导向滑槽122滑动配合,弹簧32的弹性恢复力迫使充电辊3靠近并抵接感光鼓2。支架31由导电材料制成,充电辊电极114连接在弹簧32上。
在盒体1的宽度方向W上,显影辊4和充电辊3均位于感光鼓2靠近激光通道15的一侧。显影辊4位于充电辊3的下方,充电辊3与显影辊4之间形成激光通过区17,激光通道15、激光通过区17和感光鼓2沿着盒体1的宽度方向W的投影重叠。
容纳腔101的内壁设置有支撑壁18,清洁构件6呈长条状,其固定在支撑壁18上并与充电辊3的圆周面抵接。优选地,清洁构件6朝向充电辊3的侧壁呈弧形,该弧形的侧壁朝向远离充电辊3的方向弯曲且与充电辊3的外周面紧密贴合。
开口16的上沿设置有密封件7,密封件7沿着感光鼓2的长度方向延伸,密封件7的固定端与盒体1固定连接,密封件7的自由端与感光鼓2的外周面抵接。仅充电辊3、显影辊4和密封件7与感光鼓2的外周面接触,没有刮刀与感光鼓2表面接触。
此外,在盒体1的端壁上设置有一个加粉口,该加粉口处设置有密封端盖150,这样,当处理盒内的碳粉使用完毕后,用户可以自行打开密封端盖150并通过加粉口向处理盒内填充碳粉,添加碳粉后,处理盒能够继续使用。
本实施例中,激光打印机向充电辊3所加载的充电电压的绝对值高于向显影辊4加载的显影偏压的绝对值,并且,在感光鼓2曝光时,感光鼓2曝光区域上的电压的绝对值小于显影偏压的绝对值。例如,激光打印机向充电辊3所加载的充电电压是-500V,感光鼓2曝光区域上的电压是-100V,而显影偏压是-300V。而碳粉带少量的电荷,通常碳粉的电压极性与充电辊、显影辊加载的电压极性相同,例如都是负电压,或者呈电中性。在一个显影周期结束后,下一个显影周期开始时,充电辊3先向感光鼓2充电,即充电辊3与感光鼓2接触的下游端,感光鼓2的表面的电压大约为-500V,残留在感光鼓2表面上的碳粉的电压大约也是-500V。本实施例的上游、下游是以一个打印周期内感光鼓2的转动方向说明的,具体的,在一个打印周期内,感光鼓2先与充电辊3接触,由充电辊3向感光鼓2加载电压,然后感光鼓2被激光束照射实现曝光,随后感光鼓2与显影辊4接触被加载显影偏压,因此,感光鼓2与充电辊3接触的下游端是感光鼓2与充电辊3接触后曝光之前的区域。
随着感光鼓2的转动,在曝光时,激光束照射在感光鼓2上的区域为曝光区域,经过曝光后,感光鼓2的曝光区域上的电压为-100V,而非曝光区域没有被激光照射,电压仍是-500V,因此,位于曝光区域的碳粉的电压大约也是-100V,而非曝光区域的碳粉的电压大约是-500V。
随着感光鼓2继续转动,在感光鼓2与显影辊4接触的区域,显影辊4的显影偏压是-300V,显影辊4上的碳粉的电压也大约是-300V,高于感光鼓2曝光区域的电压,但小于感光鼓2非曝光区域的电压。由于碳粉带有少量的负电荷,因此,在电场力的作用下,感光鼓2非曝光区域上的碳粉转移到显影辊4上,而显影辊4上的碳粉将转移到感光鼓2的曝光区域上。这样,在感光鼓2与显影辊4接触的区域形成电场区域,在电场区域内,感光鼓2与显影辊4之间形成较大的电场力,碳粉在电场力的作用下实现在感光鼓2与显影辊4之间的转移,残留在感光鼓2的非曝光区域上残留碳粉非常少,可以避免打印后在纸张上形成不需要的文字或者图案。并且,原先残留在感光鼓2上的碳粉将重新用于显影,因此,可以提高碳粉的利用率。
另一方面,由于感光鼓2与显影辊4是直接接触的,即感光鼓2与充电辊4没有间隙,这样,有利于碳粉快速在感光鼓2与显影辊4之间转移,使得感光鼓2非曝光区域的碳粉能够充分的转移到显影辊4上,从而实现碳粉的有效回收利用,也确保显影辊4的碳粉能够充分的转移到感光鼓2的曝光区域上,继而确保打印质量。
当然,如果充电辊的充电电压、感光鼓曝光区域上的电压以及显影辊的显影偏压都是正电压,而碳粉带有少量的正电荷,由于感光鼓的曝光区域与显影辊之间存在电势差,而显影辊与感光鼓的非曝光区域也存在电势差,因此在电场力的作用下,也能够实现碳粉的转移,从而感光鼓的非曝光区域上残留的碳粉很少,不会影响打印质量。
另外,通过设置清洁构件,感光鼓上的废粉通过摩擦作用转移到充电辊上,清洁构件实现对充电辊的清洁,因此可以取消清洁刮刀,从而避免刮刀对感光鼓表面感光涂层的破坏,降低产品成本同时提升产品的寿命。再次,由于处理盒不需要收集废粉,因此可取消废粉容纳腔,增大粉仓的容量,实现处理盒容量的扩大,提高打印页产量,提高产品性价比。此外,由于没有废粉容纳腔,本来设置废粉容纳腔的位置不再需要装碳粉,因此可避免现有技术中由于废粉容纳腔距离定影器的位置过近而造成废粉仓内的碳粉容易结块的问题。
处理盒第二实施例:
作为本发明处理盒第二实施例的说明,以下仅对与上述处理盒第一实施例的不同之处予以说明。
参见图4至图7,盒体21还包括补粉仓框体214和第三盖部件215。补粉仓框体214连接在第二盖部件213的上方,补粉仓框体214与第三盖部件215围成碳粉补充仓203,碳粉补充仓203位于碳粉容纳腔202的上方并与碳粉容纳腔202连通,激光通道216位于第二盖部件213与补粉仓框体214之间。第一盖部件212和第三盖部件215沿着盒体21的宽度方向W布置。
第二盖部件213上开设有两个补粉口2131,两个补粉口2131分别设置在靠近碳粉容纳腔202长度方向的两端处。补粉仓框体214的底部开设有两个供给口2140,一个供给口2140与一个补粉口2131密封地对接。补粉仓框体214通过卡扣2141与粉仓框体211、第二盖部件213可拆卸地固定连接。补粉仓框体214的底壁包括第一倾斜壁2142和第二倾斜壁2143,第一倾斜壁2142和第二倾斜壁2143沿着碳粉补充仓203的长度方向布置,一个供给口2140设置在第一倾斜壁2142长度方向的端部,且第一倾斜壁2142朝向该供给口2140倾斜。另一个供给口2145设置在第二倾斜壁2143长度方向的端部,且第二倾斜壁2143朝向该供给口2145倾斜。第一倾斜壁2142和第二倾斜壁2143的设置便于碳粉补充仓203内的碳粉在重力作用下从供给口进入碳粉容纳腔202内。第一倾斜壁2142、第二倾斜壁2143和第二盖部件213围成激光通道216。
由此可见,现有技术中由于激光通道将上盖体与碳粉容纳腔分隔开,因此上盖体位于碳粉容纳腔上侧的部分没有得到充分利用,而造成处理盒的容量较小,本方案通过将上盖体位于碳粉容纳腔上侧的部分去除,并在碳粉容纳腔的上侧安装碳粉补充仓,从而合理有效利用了打印机的容纳空间,提高处理盒的容量,充分发挥打印机和处理盒的最大效益,节约社会资源。
通过增设碳粉补充仓,可以进一步提高盒体中碳粉的容量,实现处理盒容量扩大,提高产品打印页产量,提高产品性价比。同时,由于本发明的处理盒能够充分利用碳粉,因此也不会存在由于碳粉补充仓增加了处理盒的容量而导致小容量的废粉仓容纳不下大容量的粉仓在相同打印页数下所产生的废碳粉量,而出现无法继续打印的问题。
处理盒第三实施例:
作为本发明处理盒第三实施例的说明,以下仅对与上述处理盒第一实施例的不同之处予以说明。
本实施例中,清洁毛刷由具有导电炭黑的纤维制作而成。清洁构件与充电辊电极电连接。
清洁构件能够导电,这样可实现对碳粉电性的改变,例如,通常情况下,感光鼓曝光显影时,感光鼓表面的碳粉所带电荷为负电荷,但是在工作过程中电性可能会发生改变而带上正电荷,若未对其进行处理,废粉进入显影腔室后,由于正负电荷之间的吸引力,会造成显影腔室内的碳粉成团而影响打印。本发明通过向具有导电性能的清洁构件通电,清洁构件对碳粉二次充电,使碳粉带上负电荷,保证废粉所带电荷与显影腔室内的碳粉所带电荷的电性一致,防止碳粉成团或结块,保证打印效果。
处理盒第四实施例:
作为本发明处理盒第四实施例的说明,以下仅对与上述处理盒第三实施例的不同之处予以说明。
本实施例中,处理盒还包括清洁支架和清洁电极,清洁电极设置在导电端端盖上并与清洁支架电连接,清洁构件安装在清洁支架的自由端,清洁支架能够导电,清洁构件与清洁电极电连接。
清洁支架为现有处理盒上的刮刀支架,清洁电极为现有处理盒上的刮刀电极,取消现有处理盒上的刮刀的刀片,并在安装刀片的位置安装上清洁毛刷,采用现有的刮刀电极向清洁构件供电,实现清洁构件对碳粉的二次充电,以使碳粉的电性改变。
此外,清洁构件也可以呈圆柱状并可旋转地安装在盒体上。清洁构件可以直接安装在盒体上,也可以在盒体上安装支撑杆,支撑杆的固定端连接在盒体上,清洁构件安装在支撑杆的自由端。清洁构件也可以由海绵、发泡棉材料或者由具有导电性能的材料制成。清洁构件朝向充电辊的侧壁也可以呈平面状,或者呈弧形且弧度与充电辊的外周面的弧度不一致,清洁构件与充电辊的外周面抵接,以增大摩擦力,实现良好的清洁效果。第一盖部件和第三盖部件可以为两个分开的零部件,也可以一体成型。上述改变也能实现本发明的目的。
电子成像设备实施例:
本实施例的电子成像设备可以是一个激光打印机,该激光打印机包括机体,机体内设置有处理盒安装腔,处理盒安装腔内可拆卸的安装有上述任一实施例的处理盒。
最后需要强调的是,以上仅为本发明的优选实施例,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种变化和更改,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
本发明的处理盒可拆卸的安装到电子成像设备中,处理盒内容纳有碳粉,由于残留在感光鼓上的碳粉可以通过电场力的作用实现转移,即碳粉可以在电场力的作用下实现在感光鼓和显影辊之间的转移,从而能够提高碳粉的利用率,且减少对感光鼓的磨损,延长处理盒的使用寿命。
Claims (23)
- 一种处理盒,包括:盒体,所述盒体具有容纳腔;显影辊,所述显影辊可旋转地安装在所述容纳腔内;感光鼓,所述感光鼓可旋转地安装在所述盒体内;充电辊,所述充电辊与所述感光鼓的外周面接触,所述充电辊与所述显影辊间隔布置;清洁构件,所述清洁构件位于所述容纳腔内,所述清洁构件安装在所述盒体内并沿平行于所述充电辊的方向延伸,所述清洁构件与所述充电辊的外周面接触;其特征在于:所述显影辊与所述感光鼓的外周面接触。
- 根据权利要求1所述的处理盒,其特征在于:所述盒体上还设置有开口和激光通道,所述开口与所述容纳腔连通,所述开口和所述激光通道在所述盒体的宽度方向上相对设置。
- 根据权利要求2所述的处理盒,其特征在于:所述清洁构件由导电材料制成;所述充电辊的轴向端设置有充电辊电极,所述清洁构件和所述充电辊均与所述充电辊电极电连接。
- 根据权利要求1至3任一项所述的处理盒,其特征在于:所述盒体设置有支撑壁,所述清洁构件安装在所述支撑壁上;或者所述盒体上安装有支撑杆,所述支撑杆的固定端连接在所述盒体上,所述清洁构件安装在所述支撑杆的自由端。
- 根据权利要求1至3任一项所述的处理盒,其特征在于:所述清洁构件固定在所述盒体上,所述清洁构件朝向所述充电辊的侧壁呈弧形,该弧形的侧壁朝向远离所述充电辊的方向弯曲。
- 根据权利要求1至3任一项所述的处理盒,其特征在于:所述清洁构件呈圆柱状并可旋转地安装在所述盒体上。
- 根据权利要求2或3所述的处理盒,其特征在于:所述开口的上沿设置有密封件,所述密封件沿着所述感光鼓的长度方向延伸,所述密封件的固定端与所述盒体固定连接,所述密封件的自由端与所述感光鼓的外周面抵接;仅所述充电辊、所述显影辊和所述密封件与所述感光鼓的外周面接触。
- 根据权利要求2或3所述的处理盒,其特征在于:在所述盒体的宽度方向上,所述显影辊和所述充电辊均位于所述感光鼓靠近所述激光通道的一侧;所述显影辊位于所述充电辊的下方,所述充电辊与所述显影辊之间形成激光通过区,所述激光通道、所述激光通过区和所述感光鼓沿着所述盒体的宽度方向的投影重叠。
- 根据权利要求2或3所述的处理盒,其特征在于:所述容纳腔包括相互连通且沿着所述盒体的宽度方向布置的碳粉容纳腔和显影腔室,所述激光通道位于所述碳粉容纳腔的上方。
- 根据权利要求9所述的处理盒,其特征在于:所述盒体包括粉仓框体、第一盖部件和第二盖部件,所述粉仓框体内设置有间隔壁,所述间隔壁上开设有连通口;所述第一盖部件与所述粉仓框体围成所述容纳腔,所述第二盖部件与所述粉仓框体围成所述碳粉容纳腔,所述显影腔室和所述碳粉容纳腔通过所述间隔壁分隔开并通过所述连通口连通;所述第一盖部件位于所述第二盖部件的上方,所述激光通道位于所述第一盖部件和所述第二盖部件之间。
- 根据权利要求9所述的处理盒,其特征在于:所述盒体还包括碳粉补充仓,所述碳粉补充仓位于所述碳粉容纳腔的上方并与所述碳粉容纳腔连通,所述激光通道位于所述碳粉补充仓与所述碳粉容纳腔之间。
- 根据权利要求11所述的处理盒,其特征在于:所述盒体包括粉仓框体、第一盖部件、第二盖部件、补粉仓框体和第三盖部件;所述粉仓框体内设置有间隔壁,所述间隔壁上开设有连通口;所述第一盖部件与所述粉仓框体围成所述容纳腔,所述第二盖部件与所述粉仓框体围成所述碳粉容纳腔,所述显影腔室和所述碳粉容纳腔通过所述间隔壁分隔开并通过所述连通口连通;所述补粉仓框体连接在所述第二盖部件的上方,所述补粉仓框体与所述第三盖部件围成所述碳粉补充仓,所述第一盖部件和所述第三盖部件沿着所述盒体的宽度方向布置。
- 根据权利要求1至3任一项所述的处理盒,其特征在于:所述盒体的端壁上设置有加粉口,所述加粉口设置有密封端盖。
- 一种处理盒,包括:盒体,所述盒体具有容纳腔;显影辊,所述显影辊可旋转地安装在所述容纳腔内;感光鼓,所述感光鼓可旋转地安装在所述盒体内;充电辊,所述充电辊与所述感光鼓的外周面接触,所述充电辊与所述显影辊间隔布置;其特征在于:所述显影辊与所述感光鼓的外周面接触;所述充电辊获取的充电电压的绝对值高于所述显影辊获取的显影偏压的绝对值,所述感光鼓曝光区域上的电压的绝对值小于所述显影偏压的绝对值。
- 根据权利要求14所述的处理盒,其特征在于:所述充电电压与所述显影偏压、所述曝光区域的电压均为正电压,或者充电电压与所述显影偏压、所述曝光区域的电压均为负电压。
- 根据权利要求14或15所述的处理盒,其特征在于:所述盒体内还设置有清洁构件,所述清洁构件位于所述容纳腔内,所述清洁构件安装在所述盒体内并沿平行于所述充电辊的方向延伸,所述清洁构件与所述充电辊的外周面接触。
- 根据权利要求16所述的处理盒,其特征在于:所述清洁构件由导电材料制成;所述充电辊的轴向端设置有充电辊电极,所述清洁构件和所述充电辊均与所述充电辊电极电连接。
- 一种处理盒,包括:盒体,所述盒体具有容纳腔;显影辊,所述显影辊可旋转地安装在所述容纳腔内;感光鼓,所述感光鼓可旋转地安装在所述盒体内;充电辊,所述充电辊与所述感光鼓的外周面接触,所述充电辊与所述显影辊间隔布置;其特征在于:所述显影辊与所述感光鼓的外周面接触;所述感光鼓与所述充电辊接触处,所述充电辊对残留有碳粉的所述感光鼓加载电压,所述感光鼓曝光时,曝光区域上形成的电压的绝对值小于所述充电电压绝对值,所述显影辊被加载电压,所述显影辊与所述感光鼓之间形成电场,在所述感光鼓非曝光区域上的残留碳粉从所述感光鼓转移至所述显影辊,所述显影辊上的碳粉转移至所述感光鼓的曝光区域。
- 根据权利要求18所述的处理盒,其特征在于:所述充电辊获取的充电电压的绝对值高于所述显影辊获取的显影偏压的绝对值,所述感光鼓曝光区域上的电压的绝对值小于所述显影偏压的绝对值。
- 根据权利要求19所述的处理盒,其特征在于:所述充电电压与所述显影偏压、所述曝光区域的电压均为正电压,或者充电电压与所述显影偏压、所述曝光区域的电压均为负电压。
- 根据权利要求18至20任一项所述的处理盒,其特征在于:所述盒体内还设置有清洁构件,所述清洁构件位于所述容纳腔内,所述清洁构件安装在所述盒体内并沿平行于所述充电辊的方向延伸,所述清洁构件与所述充电辊的外周面接触。
- 根据权利要求21所述的处理盒,其特征在于:所述清洁构件由导电材料制成;所述充电辊的轴向端设置有充电辊电极,所述清洁构件和所述充电辊均与所述充电辊电极电连接。
- 一种电子成像设备,包括:机体,所述机体内设置有处理盒安装腔,其特征在于,所述处理盒安装腔内可拆卸的安装有如权利要求1至22任一项所述的处理盒。
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