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Image forming apparatus
An image forming apparatus includes a positioning portion, a restriction portion, and a return portion. In contrast to an engagement portion provided on one of an apparatus main body and a pullout portion, an engaged portion provided on the other of the apparatus main body and the pullout portion. When the pullout portion is in an attachment position, first and second contact portions are in contact with the engagement portion. The contact between the first contact portion and the engagement portion restricts movement of the pullout portion in an insertion direction. The contact between the second contact portion and the engagement portion restricts movement of the pullout portion in a pullout direction. The restriction portion restricts the movement of the pullout portion when the pullout portion reaches a restricted position. The return portion moves the pullout portion to the attachment position when the pullout portion is in the restricted position.
Owner:CANON KK
Resin molded component, image forming apparatus, and determination method
ActiveUS12535476B2Weather/light/corrosion resistanceElectrographic processPolymer sciencePolymer chemistry
Owner:RICOH CO LTD
Image forming apparatus including unit attachable and detachable with respect to main body thereof
An image formation device (100) comprises a unit (30) that can be attached to and detached from a body frame (101), and a lock mechanism (40). The lock mechanism (40) has a grip part (37) that can move reciprocally in the attachment direction and the detachment direction of the unit (30), a lock member (41) that is swingably positioned in the unit (30) and has a hook part (41b) capable of engaging with an engagement-receiving part (50) formed on the body frame (101), and a first biasing member (43) that biases the lock member (41) in a first direction, in which the hook part (41b) engages with the engagement-receiving part (50). Due to the grip part (37) being moved in the detachment direction, the lock member (41) swings in a second direction that is the opposite of the first direction, in opposition to the biasing force of the first biasing member (43), and the engagement of the hook part (41) and the engagement-receiving part (50) is released. The lock member (41) has a restriction part (41e) that restricts the swinging of the lock member (41) in the second direction while the grip part (37) is not moved in the detachment direction.
Owner:KYOCERA DOCUMENT SOLUTIONS INC
Cartridge unit and image forming apparatus
A cartridge unit configured to be detachably attached to an apparatus body of an image forming apparatus includes a first unit including a photosensitive drum, a frame, a developing roller, and a driving-force transmission portion, and a second unit including a memory and a holder, the second unit being detachably attached to the first unit and configured to accommodate developer. The frame includes a bottom surface that extends in an axis direction, and a first side wall that extends from the bottom surface in an intersecting direction that intersects the axis direction, and that is positioned, in the axis direction, inside with respect to the driving-force transmission portion and outside with respect to the second unit attached to the first unit. The memory is disposed outside with respect to the first side wall in the axis direction when the second unit is attached to the first unit.
Owner:CANON KK
Image forming apparatus
This prevents deformation of at least one of the engaging portion and the engaged portion from affecting the positioning of the tray relative to the device body. [Solution] The image forming apparatus has an engagement portion on one of the apparatus body and the pull-out portion, and a engaged portion on the other, which includes a first contact portion and a second contact portion, and when the pull-out portion is in the mounting position, the first contact portion, the second contact portion and the engagement portion come into contact, restricting the movement of the pull-out portion in the insertion direction by the contact between the first contact portion and the engagement portion, and restricting the movement of the pull-out portion in the pull-out direction by the contact between the second contact portion and the engagement portion; a restricting portion that comes into contact with the engagement portion when the pull-out portion reaches a restricted position downstream of the mounting position and restricts the movement of the pull-out portion in the insertion direction; and a return portion that comes into contact with the engagement portion when the pull-out portion is in the restricted position and moves the pull-out portion from the restricted position to the mounting position by the weight of the pull-out portion.
Owner:CANON KK
Process cartridge and image forming apparatus
A process cartridge includes a first unit including an image bearing member configured to carry an electrostatic latent image, and a second unit including a developer bearing member configured to develop the electrostatic latent image carried on the image bearing member into a toner image, the second unit being capable of being mounted on the first unit in a mounting direction. The first unit includes a moving member that moves the second unit mounted on the first unit at a mounting position to a detachment position. The second unit includes a storage unit that stores information about the second unit. The moving member is disposed on a first side of the process cartridge in a longitudinal direction of the image bearing member. An electrode of the storage unit is disposed on a second side of the process cartridge in the longitudinal direction.
Owner:CANON KK
Image forming apparatus including air duct
An image forming apparatus includes an image forming unit, a fan, a duct including an air intake port, an air discharge port, and a body portion having a tubular shape and forming an air passage through which air taken in through the air intake port is flown to the air discharge port, the body portion including a holed wall portion to which a plurality of through holes are formed, the plurality of through holes being passed through between an inner surface, forming the air passage, of the holed wall portion and an outer surface, that is on an opposite side from the inner surface, of the holed wall portion, and a noise absorbing member attached to the outer surface of the holed wall portion so as to cover the plurality of through holes, the noise absorbing member having a noise absorbing property.
Owner:CANON KK
Cartridge and image forming apparatus
A cartridge includes a first unit including a photosensitive member and a first frame; a second unit including a developing member and a second frame; a holding portion movable between a first position for holding the second unit at the separated position and a second position for holding the second unit at the developing position; a movable member; and an urging portion. the movable member is movable to a contact force receiving position, a separating force receiving position separating force receiving portion, a first retracted position, and a second retracted position. The urging portion urges the movable member placed at the first retracted position in a direction of moving the movable member toward the contact force receiving position, and urges the movable member placed at the second retracted position in a direction of moving the movable member toward the separating force receiving position.
Owner:CANON KK
Image forming device
PendingJP2026043840AElectrographic processOther printing apparatusService engineerMechanical engineering
To prevent a user from unintentionally operating a rotation lever without impairing the workability of a service engineer. [Solution] The device comprises a front door that covers the front side of the device main body, a movable member that is movable relative to the device main body, an operating lever that is provided on the front side of the device main body and rotates around an axis between a locked position that locks the movable member and an unlocked position that releases the lock, the operating lever being covered by the front door and becoming accessible when the front door is opened, and a restricting member that is displaced between a restricting position that restricts the rotation of the operating lever and an allowing position that allows the rotation of the operating lever.
Owner:CANON KK
A process cartridge chip and a process cartridge
The present application relates to a kind of processing box chip and processing box, the processing box chip is installed on processing box, the processing box is detachably installed on the body of image forming device, the processing box chip includes: first ground and the second ground electrically connected with first ground.The first ground is used to provide the reference ground providing component by being electrically connected with the first connecting component to access the body, to realize the potential reference point provided by accessing reference ground providing component;Second ground is used to access reference ground providing component by being electrically connected with the second connecting component, wherein, the first connecting component is different from the second connecting component, the second connecting component is not included in the first connecting component, and the first connecting component is not included in the second connecting component.In this way, the grounding stability of processing box chip can be improved.
Owner:ZHUHAI PANTUM ELECTRONICS CO LTD
Arrangement for switching developing unit to developing position and release position
A process cartridge includes: a photoconductive unit; a developing unit coupled to the photoconductive unit and pivotable to a developing position and a release position; and an elastic member that biases the developing unit toward the developing position. The nip control member is switchable to a nip separation position in which the developing unit is maintained at the release position and a nip formation position which allows the developing unit to pivot to the developing position. The switching member switches the nip control member from the nip separation position to the nip formation position when the developing roller of the developing unit rotates in the image formation direction. When the nip control member is switched from the nip formation position to the nip separation position, the rotational power control member prevents or reduces rotational power transmission between the switching member and the developing roller.
Owner:HEWLETT PACKARD DEVELOPMENT COMPANY LP
Cover, housing, and image forming apparatus
ActiveUS12638802B2Electrographic processOther printing apparatusStructural engineeringMechanical engineering
Owner:FUJIFILM BUSINESS INNOVATION CORP
Cartridge and image forming apparatus
A cartridge a developing member and an electrode portion electrically connected to the developing member. An electrode cover member includes an electrode cover portion capable of covering the electrode portion, the electrode cover member being movable between a first position in which the electrode cover portion covers the electrode portion and a second position in which the electrode is exposed more to outside by the electrode cover portion than in the first position. A first engaging portion is engaged with the electrode cover member to hold the electrode cover member in the first position when the electrode cover member is in the first position. A second engaging portion is engaged with the electrode cover member to hold the electrode cover member in the second position when the electrode cover member is in the second position.
Owner:CANON KK
Cartridge and image forming apparatus
A cartridge includes a casing, a photosensitive drum rotatably supported by the casing, a charging roller rotatably supported by the casing, and a developing roller rotatably supported by the casing. A shield member is supported by the casing and including a shield portion capable of covering a photosensitive member, the shield member being movable between a first position in which the shield portion covers the photosensitive member and a second position in which the photosensitive member is more exposed to outside of the cartridge by the shield portion than when the shield member is in the first position. An engaging portion is engageable with the shield member to hold the shield member in the second position when the shield member is in the second position, and a force receiving portion is provided for receiving an external force to disengage the engagement between the engaging portion and the shield member.
Owner:CANON KK
Image forming apparatus
An image forming apparatus includes an apparatus body in which image formation is performed, an opening and closing member that is openable and closable with respect to the apparatus body, a first locking portion that is provided on one side of the opening and closing member and that locks the opening and closing member while sliding with respect to a locking target portion on one side of an apparatus body side, and a second locking portion that is provided on the other side of the opening and closing member and that locks the opening and closing member via a locking target portion on the other side of the apparatus body side in a state where there is a sliding resistance smaller than a sliding resistance generated in a case where the first locking portion slides with respect to the locking target portion on the one side or a state where there is no sliding resistance.
Owner:FUJIFILM BUSINESS INNOVATION CORP
Image forming apparatus
PendingJP2026061593AElectrographic processOther printing apparatusStructural engineeringMechanical engineering
To provide an image forming apparatus that can suppress uneven airflow velocity from the air outlet without increasing the size of the housing. [Solution] The image forming apparatus includes an intake fan 41 provided on the side wall of the housing, an air outlet 51 opening toward the developing apparatus, an extension 52 extending from the intake fan 41 toward the air outlet 51 along the side wall, and a connecting portion 53 connecting the extension end 52A of the extension 52 to the air outlet 51, and a third duct 44 that guides air drawn in from outside the housing by the intake fan 41 to the developing apparatus, and a guide portion 54 provided inside the connecting portion 53 that guides a portion of the airflow flowing into the connecting portion 53 toward the upstream side in the extension direction of the extension 52 at the air outlet 51.
Owner:KYOCERA DOCUMENT SOLUTIONS INC
Process cartridge
A process cartridge includes: a drum unit including a drive member and a photosensitive drum; a frame body having an opening through which a part of the drum unit is exposed; a shutter member shielding the photosensitive drum exposed through the opening; and a link member connecting the frame body and the shutter member. The shutter member is movable from a shielding position to an open position. A joint between the link member and the shutter member is provided to a part of the shutter member. The link member has a first portion extending from the joint toward the outside of the shutter member. In the shielding position, at least a part of the first portion overlaps with the drive member in a drum axis direction and at least a part of the first portion overlaps with the drive member in a view in an opening direction of the opening.
Owner:CANON KK
Image forming device
Owner:KYOCERA DOCUMENT SOLUTIONS INC
Image forming apparatus and cartridge
The cartridge includes a frame, a photosensitive drum, and a rack. The photosensitive drum is supported by the frame and is rotatable about its axis. The rack has one or more teeth at least partially exposed so as to face an axis of the photosensitive drum. The rack is provided on a side of the cartridge in a direction of the axis of the photosensitive drum.
Owner:CANON KK
Image forming device
To provide an image forming device capable of stably ensuring grounding via a hinge mechanism for rotatably fitting a door to a device body.SOLUTION: A hinge plate 41 has a conductive abutment 60. A support plate 51 has a conductive abutted part 70 abbutable against the abutment 60. The abutment 60 and the abutted part 70 abut against each other when a front door 40 is closed, and are separated from each other when the front door 40 is opened. The abutment 60 collides with and abut against the abutted part 70 when the front door 40 is closed. When the abutment 60 abuts against the abutted part 70, the abutted part 70 is elastically deformed to come into contact with the abutment 60 at fixed contact pressure. Specifically, in addition to grounding by contact between the lower end surface of an upper cylindrical part 111 of the support plate 51 affected by application of a load of the front door 40 when the front door 40 is in a closed state and the upper end surface of a lower cylindrical part 112 of the hinge plate 41, grounding is ensured by abutment between the abutment 60 provided in a door side plate part 412 and the abutted part 70 provided in a body side plate part 512.SELECTED DRAWING: Figure 9
Owner:CANON KK
Image forming apparatus
Owner:FUJIFILM BUSINESS INNOVATION CORP
Image-forming device
An image-forming device includes: a main casing defining an accommodating space therein, and formed with an access opening communicating the accommodating space with an exterior; an open / close member provided at the main casing to move between an open position for opening the access opening and a closed position for closing the access opening, the open / close member positioned in the open position extending in a first direction and extends in a closed position in a third direction; and a drawer member configured to be supportable a plurality of cartridges and movable from an accommodated position to a withdrawn position along the open / close member positioned in the open position, the plurality of cartridges being accommodated in the accommodating space when the drawer member is positioned in the accommodated position, the plurality of process cartridges being exposed from the main casing when the drawer member is positioned in the withdrawn position, wherein the open / close member positioned in the open position has a length in the first direction, a guiding part being formed at the open / close member and having a first guiding part and a pair of second guiding parts, the first guiding part is formed on the open / close member positioned in the open position and extending in the first direction and being configured to guide the drawer member such that the drawer member is guided along the first guiding part as the drawer member continues to move from the accommodating position to the withdrawn position and emerges from the accommodating space and such that a weight of the drawer member itself ensures that a bottom surface of the drawer member contacts the first guiding part and the drawer member slides over a top of the guiding part, and wherein the drawer member has two edges extending in the first direction and the second guiding part being configured to guide the drawer member to restrict the drawer member from moving in a second direction orthogonal to the first direction and the third direction when the drawer member is moved from the accommodated position to the withdrawn position.
Owner:BROTHER KOGYO KK
Image forming apparatus
An image forming apparatus includes a positioning portion, a restricting portion, and a returning portion. An engaged portion is provided on the other one of the device body and the pull-out portion as compared to an engaging portion provided on the other one of the device body and the pull-out portion. When the pull-out portion is in the attached position, the first contact portion and the second contact portion are in contact with the engagement portion. Contact between the first contact portion and the engagement portion restricts movement of the pull-out portion in an insertion direction. Contact between the second contact portion and the engagement portion restricts movement of the pull-out portion in a pull-out direction. The restricting portion restricts movement of the pull-out portion when the pull-out portion reaches a restricted position. The return portion moves the pull-out portion to the attachment position when the pull-out portion is in the restricted position.
Owner:CANON KK
Image forming apparatus
The present invention provides an image forming apparatus with improved positioning accuracy of the detachable unit relative to the main body of the apparatus. [Solution] An image forming apparatus for forming an image on a sheet comprises an apparatus body and a detachable unit mounted on the apparatus body in the mounting direction and detachably supported on the apparatus body, wherein the detachable unit has a first positioning portion and a second positioning portion, and the apparatus body has a single frame member which includes a first positioning portion that positions the detachable unit in the mounting direction when the first positioning portion engages with it, and a second positioning portion that positions the detachable unit in a first direction intersecting the mounting direction when the second positioning portion engages with it, wherein the second positioning portion is positioned differently from the first positioning portion in the second direction intersecting the mounting direction and the first direction.
Owner:CANON KK
Image forming device and cartridge
[TASK] To further develop prior art technique. [SOLUTION] It includes a holding portion movable, by movement of a developing member in an axial direction of the developing member, between a first position for stably holding a second unit at a spaced position and a second position for stably holding a second unit at a developing position; and an urging portion for urging the holding portion in a direction from the second position toward the first position in the axial direction of the developing member, at least one of the first gear portion and the second gear portion is a helical gear. When the second gear portion is driven and rotated by the first gear portion, the holding portion is moved from the first position to the second position by the second gear portion receiving a force from the first gear portion. When the second gear portion is not driven by the first gear portion, the holding portion is moved from the second position toward the first position by an urging force of the urging portion.
Owner:CANON KK
imaging device
An image forming apparatus includes an apparatus main body, an opening / closing member, a cartridge configured to be inserted into and pulled out of the apparatus main body, a support member configured to support the cartridge, a moving mechanism configured to support the support member and move the support member from a second position to a first position in accordance with movement of the opening / closing member from an open position to a closed position, and a force applying member configured to apply a force to the support member or the moving mechanism so that the support member is held at the second position by the moving mechanism in a state where the opening / closing member is at the open position.
Owner:CANON KK
Cleaning blade, cleaning device, process cartridge, and image forming apparatus
To provide a cleaning blade excellent in wear resistance.SOLUTION: A cleaning blade in which a contact portion that comes into contact with a member to be cleaned is formed of a member that contains polyurethane rubber obtained by polymerizing at least a polyol component and a polyisocyanate component, has a ratio (EIT / Re) of an indentation elastic modulus (EIT [MPa]) to a rebound resilience (Re [%]) of 0.65 or more, has a rebound resilience (Re [%]) of less than 25%, and has a tensile stress at 23 °C and 200% strain of 15 [MPa] or more.SELECTED DRAWING: Figure 1
Owner:FUJIFILM BUSINESS INNOVATION CORP
Image forming apparatus
Owner:CANON KK
Detachable cartridge locking
A cartridge locking apparatus includes a housing having an engagement member to detachably engage with a frame of an image forming apparatus, a cartridge locking device accommodated in the housing and having a locking mechanism to lock a cartridge of the image forming apparatus at a mounting position, and an electrical connector extruded outside of the housing and connecting the cartridge locking device with an adaptor of the image forming apparatus.
Owner:HEWLETT PACKARD DEVELOPMENT COMPANY LP
Image forming apparatus
To reduce accumulation of toner while ensuring the paper dust collection ability of a brush member.SOLUTION: An image forming apparatus comprises: a rotating image carrier; developing means that develops an electrostatic latent image formed on the image carrier by using developer at a developing part; transfer means that transfers a developer image developed by the developing means from the image carrier to a transfer target body at a transfer part; and a brush member that is in contact with the image carrier at a position downstream of the transfer part and upstream of the developing part in the direction of rotation of the image carrier, and the image forming apparatus collects the developer not transferred to the transfer target body at the developing part. The average interval between bristle materials of the brush member in the direction of axis of rotation of the image carrier is larger than the average particle diameter of the developer and is equal to or less than a length equivalent to the visually recognizable spatial frequency when a user sees an image formed by the image forming apparatus.SELECTED DRAWING: Figure 4
Owner:CANON KK