Image recording apparatus with multiple feed detection and paper feed control
AssigneeCanon Kabushiki Kaisha
InventorsTatsuto Tachibana, Izumi Narita, Akihisa Kusano, Yuzo Seino, Kaoru Sato
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Abstract
An image forming apparatus includes recording structure for recording an image on a recording medium, first and second conveying structures for conveying the recording medium to the recording structure, detecting structure for detecting a plurality of multi-fed recording media fed by the conveying structure, and control structure for controlling the first and second conveying structures so that an image is recorded on a recording medium separated from the multi-fed recording media and detected by the detecting structure or discharged from the image forming apparatus.
Claims11
An image forming apparatus comprising:
- recording means for recording an image on a recording medium;
- a first loading unit for loading a recording medium;
- a second loading unit for loading a recording medium;
- first feeding means for feeding a recording medium from said first loading unit;
- second feeding means for feeding a recording medium fed by said first feeding means to said recording means, and for feeding a recording medium from said second loading unit to said recording means, and for separating multiply fed recording mediums;
- first detecting means for detecting a multiple feed state;
- and
- discriminating means for discriminating whether a next sequential image is to be recorded on either recording medium fed from said first or second loading unit when the multiple feed state is detected,
- wherein said recording means records the next sequential image on a remaining sheet of the multiply fed recording mediums whenever the next sequential image is discriminated to be recorded on the recording medium fed from said first loading unit;
- and
- wherein said apparatus discharges a remaining sheet of the multiply fed recording mediums without said recording means recording an image thereon whenever the next sequential image is discriminated to be recorded on the recording medium fed from said second loading unit.
A method for an apparatus having a first and a second loading unit for loading recording media, said method comprising the steps of:
- feeding a recording medium fed by a first feeding unit to a recording unit using a second feeding unit when a recording medium is fed from the first loading unit, said second feeding unit being usable for feeding a recording medium from the second loading unit to the recording unit and having a function for separating multiply fed recording media;
- detecting a multiple feed state;
- discriminating whether a next image is to be recorded on either recording medium fed from the first or the second loading unit when the multiple feed state is detected;
- recording the next image on a remaining sheet of the multiply fed recording media in a case that the next image is discriminated to be recorded on the recording medium fed from the first loading unit;
- and
- discharging a remaining sheet of the multiply fed recording media without recording an image thereon in a case that the next image is discriminated to be recorded on the recording medium fed from the second loading unit.
Dependencies are inferred from the claim text.