Class / Patent application number | Description | Number of patent applications / Date published |
399316000 | Having copy medium guide | 41 |
20080292371 | IMAGE-FORMING APPARATUS - An image-forming apparatus includes an image-bearing member supporting a toner image, a transfer portion at which the toner image on the image-bearing member is transferred on a sheet; and first and second guides that guide the sheet to the transfer portion and respectively have first and second contact portions so that a surface of the sheet on which the toner image is transferred contacts these portions. The first contact portion is located at an upstream side of the second contact portion in a sheet-conveying direction. After a rear end of the sheet passes the first contact portion, the rear end of sheet passes the second contact portion while bending the second guide toward the image-bearing member. The second guide is bent from a position of an upstream side in the sheet-conveying direction with respect to a position of the first contact portion which the rear end of the sheet finally contacts when the rear end of the sheet passes the first contact portion. | 11-27-2008 |
20080298859 | Process Cartridge and Image Forming Apparatus - A process cartridge according to one aspect of the invention comprises: an image carrier configured to carry a developer image and having a transfer position capable of transferring the developer image to a recording sheet; and an elastically-deformable cantilever-shaped guide plate including a distal end portion being unsupported, and having a first surface and a second surface that is opposite to the first surface. A leading end of the recording sheet is guided on the first surface in a conveying direction, such that the leading end is guided toward the transfer position after the leading end is brought into contact with the image carrier. The distal end portion of the guide plate is bent toward the second surface side to form a bent portion. | 12-04-2008 |
20090080951 | Interlocking fastener design prevents part movement - When a TAB assembly is used in the transfer station of an electrostatic marking system, the blade used in the TABs becomes deformed or improperly aligned due to lateral movement of the clamp, held by rivets, which is used to maintain proper blade alignment. Provided herein is a simple, yet effective, way to secure this clamp with embedded burrs so that the useful life of the TAB is more than doubled over prior art TABs. | 03-26-2009 |
20090279927 | TRANSFERER AND IMAGE FORMING APPARATUS - A transferer, including a guide member having a plate-shaped guide face and leading a transfer material after a toner is transferred thereonto, wherein the guide member has an edge pointing to the feeding direction of the transfer material and having plural comb-like structures perpendicular to the feeding direction thereof. | 11-12-2009 |
20100046992 | Reversible Eccentric Actuator Widens Optical Sensor Setting Latitude - An improved flag-actuator (actuator) is provided for use in an electrophotographic marking system. This actuator is reversible providing sides | 02-25-2010 |
20100046993 | IMAGE FORMING APPARATUS - A structure for a transport path for a recording material within a transfer portion varies between a margin-less print mode and a normal print mode. A necessity of cleaning of a transfer member also varies between both modes. Thus, provided is an image forming apparatus in which the structure of the transfer portion is switched between the normal print and the margin-less print, and the margin-less print cannot be carried out with a structure of the transfer portion for the normal print. This is because, when the so-called margin-less print is carried out with the structure of the transfer portion for the normal print, there is a possibility that an image defect of a print image to be outputted is caused, or a stain of toner on a rear surface of the recording material is caused. | 02-25-2010 |
20100061777 | IMAGE FORMING APPARATUS - An image forming apparatus for transporting a recording medium on which an image is formed includes a guide plate. The guide plate guides the recording medium to a predetermined position in the image forming apparatus and includes a flexible sheet member and a rigid holding member. The rigid holding member holds the flexible sheet member such that the flexible sheet member projects from a front end of the rigid holding member. The projecting portion of the flexible sheet member includes at least three flexible sub-portions having a different bend-stiffness per unit area from each other, and the bend-stiffness per unit area is reduced toward a downstream side in a sheet guide direction. | 03-11-2010 |
20100104331 | IMAGE FORMING DEVICE AND IMAGE FORMING METHOD - An image forming device includes: a transfer roller; two registration rollers feeding a recording medium to a transfer nip where the transfer roller is in contact with an image bearing member; a transfer conveying-path through which the recording medium is fed from a registration nip formed by the registration rollers to the transfer nip; a lower guide defining a lower side of the transfer conveying-path and having an uppermost portion protruding upwardly at a position upstream of the transfer nip; and a biasing member provided at an upper side of the transfer conveying-path and between the uppermost portion and the registration rollers, and biasing the recording medium downwardly when it is fed through the registration rollers. The biasing member is movable upwardly relative to a pressing force of the recording medium that is fed through the transfer conveying-path. | 04-29-2010 |
20100129121 | Image Forming Apparatus - An image forming apparatus includes photosensitive members which each carry a developer image, transfer members which attract the developer images from the photosensitive members; a sheet housing unit which houses recording sheets; a recording sheet feeding mechanism, which feeds out a recording sheet from within the sheet housing unit and a guide member, which guides the sheet fed out by the recording sheet feeding mechanism towards a position between the photosensitive member and the transfer member. The guide member has a conductive member, which is brought into abutment with a leading end portion of a recording sheet while the recording sheet still remains in the sheet housing unit, and which is grounded electrically and insulation members which the recording sheet is brought into abutment when the leading end portion of the sheet reaches the transfer member. | 05-27-2010 |
20100247177 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image carrier; a development unit that develops an electrostatic latent image present on the image carrier with a developer; a transfer member that transfers a developer image developed by the development unit from the image carrier to a recording medium by transporting while nipping the recording medium in a transfer position in contact with the image carrier; a corrective guide member that contacts the recording medium which is simultaneously caught by the transfer member for a period and that corrects placement of the recording medium with respect to the transfer member, thus guiding the recording medium toward the transport position; and a transport unit that transports the recording medium toward the transfer position while exerting a force on the recording medium in a direction causing a side edge of the recording medium along a transport direction to abut the corrective guide member. | 09-30-2010 |
20100266317 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes: an image carrier that carries an image; a transfer roller having a transfer material grip member that moves in a circumferential direction and holds a transfer material, the transfer roller forming a transfer nip portion with the image carrier by coming into contact with each other; and a transfer material feed portion that delivers the transfer material to the transfer nip portion. The transfer material feed velocity of the transfer material feed portion is greater than the movement velocity of the transfer material grip member when the transfer material grip member moves from the rotational center of the transfer roller in the circumferential direction of the transfer roller. | 10-21-2010 |
20100266318 | IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - An image forming method includes: feeding a transfer material to a transfer portion by gate rollers; contacting the transfer material with a transfer material grip member that is disposed on a transfer roller; holding the transfer material on an elastic holding portion which holds the transfer material disposed on the circumference surface of the transfer roller; transferring the transfer material held by the holding portion; and transferring an image at the transfer portion. | 10-21-2010 |
20100303519 | IMAGE FORMING APPARATUS CAPABLE OF STABLY CONVEYING RECORDING MEDIUM - An image forming apparatus includes an image forming mechanism, a toner image carrier, a transfer unit, an application member, a pivot around which the transfer unit rotates, and an elongate hole which engages with the pivot and through which the pivot is movable in a longitudinal direction of the elongate hole. The transfer unit includes a transferor which opposes the toner image carrier, a pre-transfer guide, a post-transfer guide, and a first positioning member which positions the transferor with respect to the toner image carrier. The image forming apparatus further includes a second positioning member which engages with the first positioning member. | 12-02-2010 |
20110129265 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes: an image carrier; a transfer roller that has a gripping member that grips a transfer medium; and a transfer medium transport section that has a transfer medium transport surface that sucks the transfer medium upward in a vertical direction and a contact member that contact with the transfer medium, wherein a first position where the transfer medium starts to be sucked, a second position where the transfer medium is released from the gripping member, and a third position where the transfer medium is separated from the image carrier are disposed at positions having the relationship of L06-02-2011 | |
20110305490 | DUAL POSITION PRE-TRANSFER ASSEMBLY - A dual mode media registration transport and media pre-transfer baffle arrangement within a printer enables printing onto normal and heavy weight media materials. In a first mode, the arrangement allows normal media to enter pre-transfer baffles with the normal “S” shape, which allows all performance specifications to be maintained. To accommodate heavy weight media, the registration transport and pre-transfer baffles are moved into a second mode position which straightens the media path and enables heavy weight media to enter the pre-transfer area. Thus, enabling the printing of these materials which could not be processed through the “S” shape baffle arrangement. | 12-15-2011 |
20120027475 | IMAGE FORMATION APPARATUS - An image formation apparatus has an image carrier for carrying a toner image, a transfer element for electrostatically transferring the toner image on the image carrier to a sheet, and a guide element for guiding the sheet. The image carrier and the transfer element form a nip portion for nipping the sheet, the guide element includes a main guide configured to guide the sheet toward the nip portion and a sub-guide protruding from the main guide toward the nip portion, and the sub-guide is conductive. | 02-02-2012 |
20120070203 | REUSABLE TRANSFER ASSIST BLADE ASSEMBLY FOR ELECTRO-PHOTOGRAPHIC MARKING DEVICES - As set forth herein, a reusable transfer assist blade (TAB) assembly includes a replaceable blade assembly that is locked into position between a clamp assembly and an extruded portion of the TAB assembly. When the blade assembly requires replacement, spring tables on the clam assembly are biased upward to release the clamp assembly from the extruded portion, and the clamp assembly is rotated about a clamp tab-clamp pocket interface at the top of the TAB assembly. The blade assembly is removed and replaced, the clamp assembly is rotated back into position against the extruded portion, and the spring tabs re-engage interlocking features on the extruded portion to lock the replacement blade in position. The expensive extruded portion and clamp assembly are thus reused and the inexpensive blade assembly is discarded or recycled. | 03-22-2012 |
20120076554 | IMAGE FORMING APPARATUS - An image forming apparatus includes a primary transfer body that bears a developer image, a secondary transfer portion for transferring the developer image from the primary transfer body to a medium, and an introduction portion provided on an upstream side of the secondary transfer portion in a conveying direction of the medium. The introduction portion introduces the primary transfer portion and the medium toward the secondary transfer portion. The introduction portion has a gap having a predetermined distance therebetween. | 03-29-2012 |
20120099908 | SHEET TRANSPORT DEVICE IN THE PERIPHERY OF TRANSFER POSITION OF IMAGE FORMING APPARATUS - The sheet guide device according to the embodiments includes, an image carrier; a transfer body which faces the image carrier; and a pre-transfer guide which guides a recording medium to a facing area from under the facing area of the image carrier and the transfer body, and an end thereof on the facing area side is inclined with respect to a center line of the facing area. | 04-26-2012 |
20120134723 | SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS - A sheet conveying apparatus of the present invention includes a curved sheet conveying path provided between an upstream rotating member pair and a downstream rotating member pair, an elastic member, provided between the upstream rotating member pair and the downstream rotating member pair, configured to guide the sheet and to deform by being pressed by a rear end portion of the sheet conveyed by the downstream rotating member pair, a fixing portion configured to fix the elastic member, and a supporting portion, provided downstream of the fixing portion in the conveying direction, configured to support the elastic member from an opposite side of a guide surface of the elastic member guiding the conveyed sheet so that a portion of the elastic member between the fixing portion and the support portion is deflected along the curved sheet conveying path. | 05-31-2012 |
20120243917 | TRANSFER APPARATUS - A transfer apparatus includes a transfer roller which transfers developer on an image carrier onto a recording medium conveyed along a conveyance path, a supporting frame which is provided at an upstream of a transferring portion where the image carrier and the transfer roller are closest, in the conveyance path, and is provided at a side of the transfer roller with respect to the conveyance path, a flexible guide member which has a thin plate shape, and is attached to the supporting frame at an upstream of the transferring portion in the conveyance path to guide the record medium to the transferring portion, and a inflexible protrusion supporting member which is provided on the supporting frame between the transferring portion and the guide member in the conveyance path, and which protrudes toward the conveyance path to support a trailing edge of the record medium after passing the guide member. | 09-27-2012 |
20120243918 | Transfer Apparatus - A transfer apparatus includes a transfer roller which transfers developer on an image carrier onto a conveyed recording medium at a transferring portion, a supporting frame, a flexible guide member attached to the supporting frame to guide the record medium to the transferring portion, and a inflexible protrusion supporting member which is provided on the supporting frame between the transferring portion and the guide member and protrudes to support a trailing edge of the record medium after passing the guide member. The guide member includes a swing portion which is provided at one end side at a downstream thereof. The protrusion supporting member is provided to abut the guide member while the guide member does not protrude from the protrusion supporting member to a side of the transferring portion when the swing portion of the guide member swings by abutting the record medium. | 09-27-2012 |
20120288307 | CONSTRAINED TRANSFER ASSIST BLADE (CTAB) FOR IMPROVED PRINT TO EDGE PERFORMANCE - An imaging forming device and a constrained transfer assist blade (CTAB) that provides for faster printing speeds, with an improved image-to-edge border specification is disclosed. An upper blade layer constrains pressure blades towards a lifter assembly in order to prevent the lower lying pressure blades from delaminating and a wear layer is formed around outer edges of the blade. Faster response times and improved trail edge flip defects as well as printing closer to the sheet edges is enabled. | 11-15-2012 |
20140219693 | IMAGE FORMING APPARATUS - An image forming apparatus includes a sheet guide to guide a recording medium bearing an unfixed toner image with toner having a flow beginning temperature of equal to or less than 130° C. to a transfer nip between an image bearing member and a transfer roller. The sheet guide is disposed to satisfy the following relation: Y | 08-07-2014 |
20140376975 | Image Forming Apparatus - An image forming apparatus includes: a photosensitive drum; a transfer roller configured to form a nip portion; and a sheet guide that is configured to guide a recording sheet. The sheet guide comprises: a conductor configured to face the recording sheet, and insulating ribs that are arranged corresponding to a printing area of the recording sheet in a width direction and are configured to protrude from the conductor to guide the recording sheet. The conductor comprises: a central portion, and a pair of end portions and are configured to protrude towards the recording sheet from a virtual plane extending from the central portion in the width direction. Protrusion amounts of the end portions with respect to the central portion are smaller than a protrusion amount of each rib from the central portion of the conductor. | 12-25-2014 |
20150050054 | TRANSFER ASSIST MEMBERS - A transfer assist member comprising a plurality of layers, one of the layers being a check film layer comprised of a thermoplastic layer present on a polymer layer. | 02-19-2015 |
20150050055 | TRANSFER ASSIST MEMBERS - A transfer assist member comprising a plurality of layers, one of the layers being a check film layer comprised of a crosslinked mixture of aminoplast resins, and polyester polyols present on a support polymer layer. | 02-19-2015 |
20150063880 | TRANSFER ASSIST BLADE - There is described a transfer assist blade for an electrostatographic machine. The transfer assist blade includes a wear layer for contacting a copy sheet, an interior layer having a thickness of from about 150 microns to about 500 microns and a back layer comprising a thermoset polyimide having dispersed therein carbon particles such that an out surface of the back layer has a surface resistance of from about 1×10 | 03-05-2015 |
20150104226 | TRANSFER ASSIST MEMBERS - A transfer assist member comprising a plurality of layers, one of the layers being a check film layer comprised of a crosslinked mixture of urea-glyoxal resins, and polyester polyols present on a support polymer layer. | 04-16-2015 |
20150117917 | PRINT MEDIUM SUPPORTING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - An image forming apparatus includes an image carrier on which a developer image is formed, a transfer roller disposed to be in contact with the image carrier to form a transfer nip and to transfer the developer image formed on the image carrier onto a print medium, a print medium guide member to guide the print medium that has passed through the transfer nip to a fixing unit, and a print medium supporting member rotatably disposed between the transfer roller and the print medium guide member, and comprising a first contacting portion to be in contact with the print medium that has passed through the transfer nip and a second contacting portion that, when the first contacting portion is rotated by the print medium, is rotated integrally with the first contacting portion so as to be in contact with a rear surface of the print medium. | 04-30-2015 |
20150338788 | IMAGE FORMING APPARATUS - An image forming apparatus includes a transfer portion transferring a toner image to a sheet, a sheet guide portion guiding the sheet to the transfer portion. The sheet guide portion includes a resin member made of resin and a conductive member provided to be in contact with the sheet to which the toner image is being transferred by the transfer portion and on a surface of the resin member so as to be earthed through the resin member, and having a volume resistivity which is lower than that of the resin member. | 11-26-2015 |
20160033905 | SYSTEMS AND METHODS FOR IMPLEMENTING ADVANCED STRIPPING OF IMAGE RECEIVING MEDIA SUBSTRATES IN IMAGE FORMING DEVICES - A system and method are provided implementing advanced stripping of image receiving media substrates, including substrates involved in any cut-sheet image forming process in an image forming device that includes a pressure nip necessitating an ability to reliably remove the sheets of image receiving media substrate from a conformable belt and/or roller surface. An appropriate peel force is applied to and opposite side of the image receiving media substrate that effectively peels an image receiving media substrate and image combination from an intermediate transfer belt downstream of a conformable transfer nip. A relatively small diameter stripper roller is positioned downstream of, and in close proximity to, the conformable transfer nip as an apparatus by which to effect application of the appropriate peel force. The small diameter stripper roller has a contact surface formed of an appropriately tacky material, including certain silicone materials, to apply the peel force. | 02-04-2016 |
20160041508 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearer on which a toner image is formed, an intermediate transfer belt onto which the toner image transferred from the image bearer, a secondary transfer member, a guide assembly, and a biasing device. The secondary transfer member meets the intermediate transfer belt to form a secondary transfer nip in which the toner image is transferred from the intermediate transfer belt onto a recording sheet. The guide assembly disposed upstream from the secondary transfer member in a transport direction of the recording sheet guides the recording sheet at a position lower than the secondary transfer nip such that a leading end of the recording sheet contacts the secondary transfer member before entering the secondary transfer nip. The biasing device biases the secondary transfer member to move the secondary transfer member in one of a direction of bias and a vertical direction. | 02-11-2016 |
20160077471 | TRANSFER ASSIST MEMBERS - A transfer assist member comprising a plurality of layers, at least one of the layers being a check film layer comprised of a crosslinked alkoxyalkylated polyamide. | 03-17-2016 |
20160091833 | IMAGE FORMING APPARATUS - An image forming apparatus includes a transferring member and a guiding part. The transferring member is configured to form a transferring nip with an image carrier and to transfer a toner image from the image carrier to a sheet at the transferring nip. The guiding part has an upper guiding member and a lower guiding member which are disposed oppositely to both faces of the sheet in a vertical direction along a sheet conveying path toward the transferring nip. The lower guiding member has a movable lower guiding plate and a plurality of elastic members. The movable lower guiding plate is made of a thin elastic material. The plurality of elastic members are disposed along a sheet width direction crossing the sheet conveying direction and supports the movable lower guiding plate to be displaceable in a direction apart from the image carrier. | 03-31-2016 |
20160124350 | IMAGE FORMING APPARATUS - An image forming apparatus includes a sheet stacking portion, a feed portion, a transfer portion transferring a toner image on a sheet fed by the feed portion, and a switching portion. The switching portion switches the sheet stacking portion between a grounded condition in which the sheet stacking portion is electrically earthed and an insulated condition in which the sheet stacking portion is electrically insulated. The sheet stacking portion is switched into the insulated condition in a state in which the transfer bias is applied and the sheet stacking portion is switched into the grounded condition in a state in which no transfer bias is applied. | 05-05-2016 |
20160170335 | IMAGE FORMING APPARATUS | 06-16-2016 |
20160170363 | IMAGE FORMING APPARATUS | 06-16-2016 |
20160170364 | IMAGE FORMING APPARATUS | 06-16-2016 |
20170235265 | IMAGE FORMING APPARATUS | 08-17-2017 |
399317000 | Retractable | 1 |
20120308274 | SINGLE BTR ROLL AT STRIPPER FOR CONTINUOUS WEB TRANSFER - An electrostatographic printing apparatus that includes a charge receptor endless belt; a transfer nip including a BTR roll in contact with the charge receptor at a transfer zone, a continuous media supplied to the transfer zone, and the transfer nip adapted for systematic engagement and disengagement with the continuous media for synchronization of image transfer from the charge receptor to the media. More specifically, in response to recognition of imaging inconsistencies such as belt seams, test patches, or label format pitches, the endless belt disengages from the continuous media at the BTR roll. The BTR roll is appropriately turned on and off and the continuous media reversed in direction commonly known as a ‘Pilgrim step’, then returned to normal direction to synchronize the transfer of images to the continuous media. | 12-06-2012 |