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US 6,634,641 B2Granted
Sheet discharge apparatus, sheet finishing apparatus and image forming apparatus equipped with the same
AssigneeNisca Corporation
InventorsTakehiro Yamakawa, Shinya Sasamoto
Life of this patent
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Abstract
An apparatus prevents unwanted stop caused by erroneous detection of a sheet when the sheet bends during a sheet bundle alignment or stapling. The apparatus includes a control device for ignoring a sheet presence detection result by a sensor lever and a sheet presence sensor when aligning by a paddle and an alignment plate or binding by a staple unit.
Claims12
A sheet discharge apparatus comprising:
- sheet storage means for receiving a sheet;
- discharge means for discharging the sheet transported from a processing apparatus to the sheet storage means;
- sheet detection means disposed on the sheet storage means for detecting a presence or absence of the sheet on the sheet storage means;
- aligning means disposed above the sheet storage means for aligning the sheet discharged on the sheet storage means;
- and
- control means electrically connected to the sheet detection means and the aligning means for controlling an operation of the sheet discharge apparatus, said control means ignoring a detection result by the sheet detection means when aligning by the aligning means.
3 more elements
A sheet finishing apparatus comprising:
- sheet storage means for receiving a sheet;
- discharge means for discharging the sheet transported from a processing apparatus to the sheet storage means;
- sheet detection means disposed on the sheet storage means for detecting a presence or absence of the sheet on the sheet storage means;
- aligning means disposed above the sheet storage means for aligning the sheet discharged to the sheet storage means;
- finishing means situated adjacent to the sheet storage means for executing a prescribed process on the sheet aligned by the aligning means;
- and
- control means electrically connected to the sheet detection means for controlling the sheet finishing apparatus, said control means ignoring a detection result by the sheet detection means when aligning by said aligning means or finishing by said finishing means.
4 more elements
An image forming apparatus comprising:
- a sheet discharge apparatus having sheet storage means for receiving a sheet;
- discharge means for discharging the sheet transported from a processing apparatus to the sheet storage means;
- sheet detection means disposed on the sheet storage means for detecting a presence or absence of the sheet on the sheet storage means;
- and aligning means disposed on the sheet storage means for aligning the sheet discharged to the sheet storage means;
- and
- control means electrically connected to the sheet detection means for controlling the sheet discharge apparatus, said control means ignoring a detection result by the sheet detection means when aligning the sheet by the aligning means.
3 more elements
An image forming apparatus comprising:
- an image forming device for forming an image on a sheet;
- a finishing apparatus having sheet storage means for receiving the sheet;
- discharge means for discharging the sheet transported from the image forming device to the sheet storage means;
- sheet detection means disposed on the sheet storage means for detecting a presence of the sheet on the sheet storage means;
- aligning means disposed above the sheet storage means for aligning the sheet discharged to the sheet storage means;
- and finishing means for executing a prescribed finishing process on the sheet aligned by the aligning means;
- and
- control means electrically connected to the aligning means and the finishing means for controlling the finishing apparatus, said control means ignoring a detection result by the sheet detection means when aligning by the aligning means or when finishing by the finishing means.
5 more elements
Dependencies are inferred from the claim text.