Patent classifications
B65H1/18
SHEET STACKING APPARATUS, SHEET CONVEYING APPARATUS, AND IMAGE FORMING APPARATUS
A driven gear is relatively movable to a first support position and to a second support position on a support member. When a first gear rotates in a first direction, the driven gear rotates at the first support position in conjunction with rotation of the first gear to permit the rotation of the driven gear. When the first rotates in a second direction opposite to the first direction, the driven gear moves to the second support position under a force received from the gear in an area where the driven gear meshes with the first gear. Then, at the second support position, the driven gear is locked on a locking member and thus stopped, preventing the first gear from rotating in the second direction.
SHEET STACKING APPARATUS, SHEET CONVEYING APPARATUS, AND IMAGE FORMING APPARATUS
A driven gear is relatively movable to a first support position and to a second support position on a support member. When a first gear rotates in a first direction, the driven gear rotates at the first support position in conjunction with rotation of the first gear to permit the rotation of the driven gear. When the first rotates in a second direction opposite to the first direction, the driven gear moves to the second support position under a force received from the gear in an area where the driven gear meshes with the first gear. Then, at the second support position, the driven gear is locked on a locking member and thus stopped, preventing the first gear from rotating in the second direction.
Medium feeding apparatus
A medium feeding apparatus includes: a feed tray on which media M are placed; a draw-out unit that draws out an uppermost medium among the media placed on the feed tray; a hanging member that hangs the feed tray; and a load member that applies, when an amount of the media placed on the feed tray is equal to or smaller than a predetermined amount, a downward load to a portion of the feed tray located on an upstream side in a draw-out direction of the media.
SHEET CONVEYING DEVICE, IMAGE FORMING APPARATUS, AND SHEET PRESENCE OR ABSENCE DETERMINATION METHOD
According to one embodiment, a sheet conveying device includes a placement tray, a presence detection sensor, and a control unit. The placement tray places a sheet thereon. The presence detection sensor detects the presence or absence of the sheet on the placement tray. The control unit delays a determination timing of the presence or absence of the sheet placed on the placement tray to a predetermined timing when a condition indicating that the remaining sheets placed on the placement tray are only a few is satisfied.
SHEET CONVEYING DEVICE, IMAGE FORMING APPARATUS, AND SHEET PRESENCE OR ABSENCE DETERMINATION METHOD
According to one embodiment, a sheet conveying device includes a placement tray, a presence detection sensor, and a control unit. The placement tray places a sheet thereon. The presence detection sensor detects the presence or absence of the sheet on the placement tray. The control unit delays a determination timing of the presence or absence of the sheet placed on the placement tray to a predetermined timing when a condition indicating that the remaining sheets placed on the placement tray are only a few is satisfied.
SHEET FEEDING APPARATUS AND AN IMAGE FORMING APPARATUS
Disclosed is a sheet feeding apparatus including: a tray unit provided rotatably with respect to an apparatus main body; a sheet stacking member which can be moved to a stand-by position for waiting for sheet feeding and a feeding position at which a sheet can be fed; a moving portion which abuts against the sheet stacking member from below and to move the sheet stacking member to the feeding position and the stand-by position, the moving portion being movable to a first position at which the moving portion locates the sheet stacking member at the stand-by position and to a second position at which the moving portion locates the sheet stacking member at the feeding position; and a restricting portion which restricts movement of the sheet stacking member by interfering with the moving portion located at the first position when the sheet stacking member moves.
Recording material feeding device
A recording material feeding device includes a stacking portion, a driving source, a holding member, a torque limiter for limiting transmission of a driving torque from the driving source to the stacking portion in a case that the driving source rotates in a state in which the holding member holds the position of the stacking portion; a storing portion for storing information on a holding state of the holding member; and a controller for controlling the driving source to rotate at a rotational speed slower when the information is information indicating that the holding member holds the position of the stacking portion than when the information is information indicating that the holding member does not hold the position of the stacking portion.
Recording material feeding device
A recording material feeding device includes a stacking portion, a driving source, a holding member, a torque limiter for limiting transmission of a driving torque from the driving source to the stacking portion in a case that the driving source rotates in a state in which the holding member holds the position of the stacking portion; a storing portion for storing information on a holding state of the holding member; and a controller for controlling the driving source to rotate at a rotational speed slower when the information is information indicating that the holding member holds the position of the stacking portion than when the information is information indicating that the holding member does not hold the position of the stacking portion.
SHEET STORING APPARATUS, SHEET FEEDING APPARATUS, AND IMAGE FORMING APPARATUS
A height regulating portion is integrally formed with a pressing member provided in a first side regulating plate configured to regulate a position of a sheet in a sheet feed cassette, and the pressing member is provided turnably in the first side regulating plate and movably to project and retract positions. Then, when the sheet abuts with the height regulating portion and the height regulating portion is pressed from above by the sheet when the sheet is stored, the pressing member is moved, while turning, to the retract position.
SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
A sheet feeding apparatus includes a sheet presence/absence detection sensor configured to detect presence or absence of a sheet on a stacking device, a sheet surface detection sensor configured to detect that a stacking tray is raised to enable a sheet to be fed, a separation cam, and a control unit. The control unit is configured to determine that the mounting state of a feeding holder to a holder support unit is defective when the sheet surface detection sensor detects that the sheet can be fed when the sheet presence/absence detection sensor detects absence of a sheet before sheet feeding processing by a pickup roller.