Image forming apparatus and image forming method
AssigneeFuji Xerox Co., Ltd.
InventorNaoto Hirao
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes: an image transfer unit that transfers an image to continuous paper provided with a plurality of sprocket holes along a paper length direction on both sides in a paper width direction; an image fixing unit that fixes the image transported to the continuous paper by the image transfer unit; a transport unit that includes a plurality of protruding parts inserted into the sprocket holes on both sides in the paper width direction, that is placed downstream in a paper transport direction from the image fixing unit for moving the protruding parts in the paper transport direction, and that transports the continuous paper; a change unit that changes the spacing between the protruding parts in the paper width direction; and a control unit that controls drive of the change unit.
Claims12
An image forming apparatus comprising:
- an image transfer unit that transfers an image to continuous paper provided with a plurality of sprocket holes along a paper length direction on both sides in a paper width direction;
- an image fixing unit that fixes the image transported to the continuous paper by the image transfer unit;
- a transport unit that includes a plurality of protruding parts inserted into the sprocket holes on both sides in the paper width direction, that is placed downstream in a paper transport direction from the image fixing unit for moving the protruding parts in the paper transport direction, and that transports the continuous paper;
- a change unit that changes the spacing between the protruding parts in the paper width direction;
- and
- a control unit that controls drive of the change unit so that the spacing between the protruding parts in the paper width direction becomes narrower than the spacing between the sprocket holes in the continuous paper before image fixing in the paper width direction during image formation processing of the image transfer unit and the image fixing unit,
- wherein the control unit sets automatically a change amount for changing the spacing between the protruding parts in the paper width direction in response to the type of the continuous paper.
An image forming method comprising:
- transferring an image to continuous paper provided with a plurality of sprocket holes along a paper length direction on both sides in a paper width direction;
- fixing the image transported to the continuous paper;
- transporting the continuous paper by inserting a plurality of protruding parts into the sprocket holes and moving the plurality of protruding parts;
- changing a spacing between the protruding parts in the paper width direction;
- and
- controlling drive of the change unit so that the spacing between the protruding parts in the paper width direction becomes narrower than a spacing between the sprocket holes in the continuous paper before image fixing in the paper width direction during image formation processing,
- wherein a change amount for changing the spacing between the protruding parts in the paper width direction is set automatically in response to the type of the continuous paper.
Dependencies are inferred from the claim text.