Patent classifications
B65H29/70
TRANSFER APPARATUS
A transfer apparatus includes a transfer device which performs transfer processing to transfer a transfer layer or protection layer to first and second faces of a card-shaped recording medium, a correcting device which performs decurl processing to correct a curl of the recording medium to which the transfer layer is transferred, a transfer sequence determining device which determines a transfer sequence to the first face and the second face of the recording medium, and a control device which controls the transfer device and the correcting device. The transfer sequence determining device determines the transfer sequence so that the transfer processing is performed alternately on the first face and the second face at least once. The control device performs the decurl processing with the correcting device for the difference between the number of times of the transfer processing on the first face and the second face of the recording medium.
TRANSFER APPARATUS
A transfer apparatus includes a transfer device which performs transfer processing to transfer a transfer layer or protection layer to first and second faces of a card-shaped recording medium, a correcting device which performs decurl processing to correct a curl of the recording medium to which the transfer layer is transferred, a transfer sequence determining device which determines a transfer sequence to the first face and the second face of the recording medium, and a control device which controls the transfer device and the correcting device. The transfer sequence determining device determines the transfer sequence so that the transfer processing is performed alternately on the first face and the second face at least once. The control device performs the decurl processing with the correcting device for the difference between the number of times of the transfer processing on the first face and the second face of the recording medium.
SHEET STACKING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
A sheet stacking device includes a sheet stacking section, pairs of ejection rollers, an airflow generator, and an airflow guide. The airflow guide has a center exhaust port and paired side exhaust ports. An airflow is blown out from the center exhaust port toward a central part of the lower surface of the sheet in a sheet width direction perpendicular to a conveyance direction of the sheet. Airflows are blown out from the respective paired side exhaust ports toward respective sides of the lower surface of the sheet. An amount of the airflow blown out from the center exhaust port is larger than those of the airflows blown out from the respective paired side exhaust ports.
DECURLER, SHEET FINISHER AND IMAGE FORMING APPARATUS
A decurler includes: a drive roller; a driven roller which rotates to follow the drive roller; an endless belt wound around the drive roller and the driven roller; and a pushing roller pushed into an outer peripheral surface of the endless belt. Curl formed of a sheet is corrected by passing the sheet between the endless belt and the pushing roller. The decurler further comprises: a guide member which guides the sheet to the endless belt; and a regulating member located in an inner peripheral side of the endless belt to hold, within a correcting force effective area, the endless belt deformed by the sheet guided by the guide member. The regulating member determines a relative positional relationship between the endless belt and the pushing roller based on the position of the pushing roller and the form of the endless belt deformed by a sheet.
Sheet stacking tray, and sheet postprocessing device/image forming apparatus including the sheet stacking tray
A sheet stacking tray includes a first stacking portion, a second stacking portion, and a base portion. In a sheet widthwise direction perpendicular to the sheet discharge direction, the first stacking portion includes a first sheet stacking surface having a first stacking width within a range from one half of a sheet width of a maximum-size sheet to be discharged up to the sheet width of the maximum-size sheet. The second stacking portion includes a second sheet stacking surface having a second stacking width smaller than the first stacking width. A border between the first stacking portion and the second stacking portion lies on a discharge-direction upstream side of a contact point where a leading end portion of the maximum-size sheet comes into contact with the sheet stacking part while the sheet is discharged.
Sheet stacking tray, and sheet postprocessing device/image forming apparatus including the sheet stacking tray
A sheet stacking tray includes a first stacking portion, a second stacking portion, and a base portion. In a sheet widthwise direction perpendicular to the sheet discharge direction, the first stacking portion includes a first sheet stacking surface having a first stacking width within a range from one half of a sheet width of a maximum-size sheet to be discharged up to the sheet width of the maximum-size sheet. The second stacking portion includes a second sheet stacking surface having a second stacking width smaller than the first stacking width. A border between the first stacking portion and the second stacking portion lies on a discharge-direction upstream side of a contact point where a leading end portion of the maximum-size sheet comes into contact with the sheet stacking part while the sheet is discharged.
INK-JET RECORDING APPARATUS
An ink-jet recording apparatus includes: an image recorder; a first supporter including support ribs extending to positions under the image recorder; an ink receiver disposed downstream of the support ribs; first and second roller pairs disposed downstream of the first supporter; a guide; and a protrusion disposed between the ink receiver and the first roller pair and having an upper end located below upper ends of the support ribs and above a first imaginary line connecting between a nip position of the first roller pair and a downstream end of the ink receiver. A distance between an upstream end of the ink receiver and a nip position of the second roller pair is less than a length of a first-size sheet and greater than a length of a second-size sheet. The protrusion is disposed, in a widthwise direction, in a region through which the second-size sheet is conveyed.
SHEET DISCHARGE DEVICE AND IMAGE FORMING APPARATUS
A sheet discharge device includes: a conveying portion which conveys the sheet in a conveying direction with the sheet interposed between a first roller and a second roller; a first conveying guide; a second conveying guide; a rotating portion which is disposed on a shaft of the first roller and has an outer diameter larger than that of the first roller; and a guide portion which is provided in the first conveying guide and in which an interval between the guide portion and the opposite second conveying guide becomes narrower toward a downstream side in the conveying direction, the guide portion being located at a position corresponding to the rotating portion in a sheet width direction orthogonal to the conveying direction.
SHEET DISCHARGE DEVICE AND IMAGE FORMING APPARATUS
A sheet discharge device includes: a conveying portion which conveys the sheet in a conveying direction with the sheet interposed between a first roller and a second roller; a first conveying guide; a second conveying guide; a rotating portion which is disposed on a shaft of the first roller and has an outer diameter larger than that of the first roller; and a guide portion which is provided in the first conveying guide and in which an interval between the guide portion and the opposite second conveying guide becomes narrower toward a downstream side in the conveying direction, the guide portion being located at a position corresponding to the rotating portion in a sheet width direction orthogonal to the conveying direction.
Recording apparatus
A recording apparatus includes a recording unit, a discharge unit that discharges a medium on which recording is performed by the recording unit, and a medium receiving unit that receives a medium discharged by the discharge unit, and a medium can be fed to an optional device attached to an apparatus main body from the discharge unit. The discharge unit includes a discharge roller that discharges a medium, a forming unit that forms a medium to be discharged, and a detection unit that detects a stacking height of a medium stacked on the medium receiving unit and is located at a position where the detection unit interferes with the optional device when the optional device is attached, the detection unit and the forming unit are integrally configured, and the detection unit and the forming unit are configured to be integrally attached to and removed from the apparatus main body.