Image forming apparatus with image reading unit
AssigneeRicoh Company, Ltd.
InventorsHiroyuki Nagashima, Akira Suga
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a printing unit for printing an image on a paper, a paper feed mechanism for feeding a paper to said printing unit, a paper supply cassette for forwarding papers, one by one, to said paper feed mechanism, an optical sensor for detecting whether or not a surface of each paper, fed to said printing unit by said paper feed mechanism, is blank, and an ejecting unit for ejecting a paper from said paper feed mechanism without printing an image thereon when said optical sensor detects that the surface of the paper is not blank, so that only papers having blank surfaces are fed to said printing unit.
Claims12
An image forming apparatus comprising;
- printing means for printing an image on a paper;
- a paper feed means for feeding a paper to said printing means;
- paper supply means, coupled to said paper feed means, for forwarding papers, one by one, to said paper feed means;
- detecting means for detecting whether or not a surface of each paper, fed to said printing means by said paper feed means, is blank;
- and
- ejecting means, coupled to said detecting means, for ejecting a paper from said paper feed means without printing an image thereon when said detecting means detects that the surface of the paper is not blank, so that only papers having blank surfaces are fed to said printing means.
Dependencies are inferred from the claim text.