Patent classifications
B65H9/103
Sheet conveying device, image forming apparatus
An object of the present invention is to correct the deviation of a sheet in the width direction occurring on a conveyance path from a sheet correction mechanism (4) to a discharge tray. A sheet shift portion (41, 43, 44) moves a sheet in the width direction. A conveying position detecting portion (45, 46, 47) detects the position of the sheet in the width direction. A discharge position detecting portion (54, 8a) detects a discharge position of the sheet, in the width direction, discharged onto a discharge tray (33) in a sheet discharge portion (31). A control portion (8b) derives an amount of deviation between the discharge position and a discharge reference position based on a detection result of the discharge position detecting portion (54, 8a). Furthermore, the control portion (8b) corrects a conveying position of the sheet in a sheet conveying portion according to the amount of deviation.
Paper sheet conveyor and paper sheet conveyance method
A paper sheet transport apparatus (10) includes transport member that is slidable along the widthwise direction of a transport path (11) (e.g., a drive roller (36) and a driven roller (38)), and a paper sheet detection unit (inlet-side paper sheet detection sensor (70)) that is arranged on an upstream side of the transport member in the paper sheet transport direction along the transport path (11) and detects the position of the paper sheet in the widthwise direction of the transport path (11). A control unit (80) calculates an amount of movement of the transport member based on the position of the paper sheet in the widthwise direction of the transport path (11) detected by the paper sheet detection unit and a previously set predetermined position of the paper sheet in the widthwise direction of the transport path (11).
Recording apparatus and recording method
Provided is a recording apparatus including a transporting unit capable of transporting a medium, a detecting unit capable of detecting a transport direction in which the medium is transported by the transporting unit, a recording unit capable of performing recording on the medium transported by the transporting unit, and a member capable of coming into contact with and separating from a side of the medium opposite to a recording side on which recording is performed by the recording unit and coming into contact with at least a part of the opposite side of the medium to prevent skewing of the transported medium when the medium is transported by the transporting unit.
Sheet transport device and image forming apparatus
A sheet transport device includes a pair of movable transport rollers capable of transporting a sheet while holding the sheet and capable of moving in an axial direction crossing a transportation direction; pairs of first transport rollers disposed upstream from the pair of movable transport rollers in the transportation direction while being spaced apart from each other to transport the sheet while holding the sheet; and pairs of transport guides disposed to define sheet transport spaces between the pair of movable transport rollers and the pairs of first transport rollers and between the pairs of first transport rollers. When the pair of movable transport rollers is to be moved in the axial direction, at least one of the pairs of first transport rollers is displaced in the axial direction while holding a portion of the transported sheet.
METHOD FOR ACTIVATING AT LEAST ONE ALIGNMENT SEGMENT OF A PROCESSING MACHINE
Examples include activating at least one alignment segment of a processing machine. The at least one alignment segment is arranged before at least one processing unit of the processing machine that is activated. The at least one alignment segment includes a plurality of transport sections following one another in the transport direction. At least two transport sections, following one another in the transport direction, each have a basic position and at least one adjustment position. The at least one adjustment position in each case is offset relative to the basic position in the transverse direction. At least one transport section of the transport sections is axially adjusted. At least one dedicated drive axially adjusts the at least one transport section of the transport sections, and the at least one dedicated drive is designed as a direct drive.
Conveying device and image forming apparatus
A conveying device includes a conveyor, a detector, and circuitry. The conveyor conveys a recording medium in a conveyance direction. The detector detects a skew amount and a shift amount of a posture of the recording medium to be sent to the conveyor and detects, in parallel, end positions of the recording medium in a width direction of the recording medium intersecting with the conveyance direction, at at least three different points in the conveyance direction on one end of the recording medium in the width direction. The circuitry controls an operation of the conveyor and causes the detector to detect a corner folded portion of the recording medium based on the end positions of the recording medium in the width direction detected at the at least three different points.
Sheet feeding device and image forming apparatus
A sheet feeding device includes a first feeding roller pair, a reference member, an obliquely feeding roller, a second feeding roller pair, a detecting portion, and a controller. Before a sheet is obliquely fed by the obliquely feeding roller, the controller causes the first feeding roller to move the sheet to a predetermined position in a widthwise direction of the sheet on the basis of a detection result of the detecting means.
Image forming apparatus
An image forming apparatus includes an image forming unit, a reversing roller pair, a moving unit, and an obtaining unit. The image forming unit forms an image on a sheet. The reversing roller pair nips the sheet having the image, rotates in a first direction, and then rotate in a second direction and conveys the sheet. The moving unit moves the reversing roller pair. The obtaining unit obtains the sheet length. If a first sheet having a first length is reversed and conveyed, the moving unit moves the reversing roller pair conveying the first sheet in the width direction by a first moving amount. If a second sheet having a second length greater than the first length is reversed and conveyed, the moving unit moves the reversing roller pair conveying the second sheet in the width direction by a second moving amount smaller than the first moving amount.
Processing machine and method for activating at least one alignment segment of a processing machine
Examples include a processing machine for processing a substrate. At least one alignment segment is arranged before at least one processing unit of the processing machine. The at least one alignment segment includes a plurality of transport sections following one another in the transport direction. The at least one alignment segment includes a dedicated drive for axially adjusting at least one of the transport section. The at least one transport section includes at least one first transport sub-section and at least one second transport sub-section in the transverse direction. The first transport sub-section and the second transport sub-section are drivable relative to one another at differing speeds in the circumferential direction. The alignment segment includes a transport section that includes the dedicated drive for axially adjusting the transport section and the transport sub-sections that can be driven relative to one another at differing speeds.
Method for activating at least one alignment segment of a processing machine
Examples include activating at least one alignment segment of a processing machine. The at least one alignment segment is arranged before at least one processing unit of the processing machine that is activated. The at least one alignment segment includes a plurality of transport sections following one another in the transport direction. At least two transport sections, following one another in the transport direction, each have a basic position and at least one adjustment position. The at least one adjustment position in each case is offset relative to the basic position in the transverse direction. At least one transport section of the transport sections is axially adjusted. At least one dedicated drive axially adjusts the at least one transport section of the transport sections, and the at least one dedicated drive is designed as a direct drive.