Sheet feeding device and image forming apparatus having the sheet feeding device
AssigneeCanon Kabushiki Kaisha
InventorsRyukichi Inoue, Akihiro Toma, Jun Tanaka
Life of this patent
Estimating the term…
Abstract
This specification discloses a sheet feeding device for feeding a sheet comprising sheet supporting means for supporting the sheet thereon, a sheet feeding roller for contacting with the sheet supported on the sheet supporting means and feeding the sheet, and cleaning means for contacting with that portion of the sheet feeding roller which contacts with the sheet, and cleaning the contacting portion, the sheet feeding roller having a cut-away portion which does not contact with the sheet, secondary cleaning means for cleaning the cleaning means being provided in the cut-away portion. The specification also discloses an image forming apparatus provided with such sheet feeding device.
Claims24
A sheet feeding device for feeding a sheet comprising:
- sheet supporting means for supporting the sheet thereon;
- a sheet feeding roller for contacting with the sheet supported on said sheet supporting means to feed the sheet;
- and
- cleaning means for contacting with a portion of said sheet feeding roller which contacts with the sheet, and cleaning the portion;
- said sheet feeding roller having a cut-away portion which does not contact with the sheet, and secondary cleaning means for cleaning said cleaning means being provided in said cut-away portion.
An image forming apparatus for forming an image on a sheet comprising:
- image forming means for forming an image on the sheet;
- sheet supporting means for supporting thereon the sheet for forming an image thereon;
- a sheet feeding roller for contacting with the sheet supported on said sheet supporting means and feeding the sheet;
- and
- cleaning means for contacting with that portion of said sheet feeding roller which contacts with the sheet, and cleaning said contacting portion;
- said sheet feeding roller having a cut-away portion which does not contact with the sheet, and secondary cleaning means for cleaning said cleaning means being provided in said cut-away portion.
Dependencies are inferred from the claim text.