Image forming apparatus with overlapped sheet detector
AssigneeCanon Kabushiki Kaisha
InventorTsuyoshi Moriyama
Life of this patent
Estimating the term…
Abstract
An image forming apparatus has a first stacking unit for stacking regular sheets on which images are formed, an image forming unit for forming an image on a regular sheet fed from the first stacking unit, a second stacking unit for stacking the insertion sheets, a delivery unit for discharging the regular sheets from the image forming unit and the insertion sheets from the second stacking unit into a single sheet discharge section, and a paper thickness detection unit provided on a common carrier path through which the regular sheets carried from the image forming unit and the insertion sheets delivered from the second stacking unit are transported for detecting the thickness of the regular sheets and the insertion sheets.
Claims9
An image forming apparatus comprising:
- a first stacking unit for stacking regular sheets;
- an image forming unit for forming an image on a regular sheet fed from the first stacking unit;
- a second stacking unit for stacking insertion sheets;
- a delivery unit for discharging the insertion sheets fed from the second stacking unit to a sheet discharge section wherein at least a portion of a path traveled by the regular sheets from said image forming unit to said discharge section and a path traveled by the insertion sheets from said second stacking unit to said discharge section form a common carrier path;
- and
- a paper thickness detection unit, provided on the common carrier path through which the regular sheets carried from the image forming unit and the insertion sheets delivered from the second stacking unit are transported, for detecting the thickness of the regular sheet and the insertion sheet.
An image forming apparatus comprising:
- a first stacking unit for stacking regular sheets;
- an image forming unit for forming an image on a regular sheet fed from the first stacking unit;
- a second stacking unit for stacking insertion sheets;
- a delivery unit for discharging the regular sheets fed from the image forming unit and the insertion sheets from the second stacking unit to a single sheet discharge unit;
- a paper thickness detection unit for detecting a thickness of an insertion sheet fed from the second stacking unit and a regular sheet carried from the image forming unit;
- and
- a warning unit for providing a warning in accordance with a thickness of each page of a first set a thickness of each page from a second set onward.
Dependencies are inferred from the claim text.