Sheet conveying apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorTsuyoshi Nagasaki
Life of this patent
Estimating the term…
Abstract
A cleaning brush is not made slidably contact suctioning endless belts which pass inlets, and the cleaning brush is made slidably contact non-suctioning endless belts which do not pass the inlets. Consequently, it is possible to bring out paper dust and transfer remaining toner which adhere to the suctioning endless belts in attracting areas in which the inlet holes are formed, to the exterior of the apparatus by means of sheets to be conveyed. By contrast with this, from non-suctioning endless belts, the cleaning brush can clean and remove paper dust and transfer remaining toner which adhere to the non-suctioning endless belts.
Claims8
A sheet conveying apparatus has an attracting and conveying portion which attracts and conveys a sheet, the attracting and conveying portion comprising:
- a conveying belt portion which attracts the sheet to a sheet conveying surface by negative pressure of air and conveys the sheet;
- and
- a cleaning member which contacts and cleans a belt surface of the conveying belt portion,
- wherein an attracting area which attracts the sheet to the sheet conveying surface is set on an inner side of a range in a width direction orthogonal to a conveying direction in a minimum size sheet which can be conveyed by the attracting and conveying portion, and the cleaning member is arranged to contact the belt surface outside the attracting area.
An image forming apparatus comprising a transfer portion which transfers to a sheet a toner image formed as an image by an image forming portion, and an attracting and conveying portion which attracts and conveys the sheet to which the toner image is transferred by the transfer portion, wherein
- the attracting and conveying apparatus includes:
- a conveying belt portion which attracts a sheet to a sheet conveying surface by negative pressure of air and conveys the sheet;
- and
- a cleaning member which contacts and cleans a belt surface of the conveying belt portion,
- wherein an attracting area which attracts the sheet to the sheet conveying surface is set on an inner side of a range in a width direction orthogonal to a conveying direction in a minimum size sheet which can be conveyed by the attracting and conveying portion, and the cleaning member is arranged to contact the belt surface outside the attracting area.
Dependencies are inferred from the claim text.