Electrophotography – Diagnostics – Document handling
Patent
1996-06-28
1998-01-27
Ramirez, Nestor
Electrophotography
Diagnostics
Document handling
271266, G03G 2100
Patent
active
057130604
ABSTRACT:
An image forming apparatus includes an image forming unit for forming an image on a sheet, a first conveying unit for conveying a sheet along a first conveying path toward the image forming unit, a second conveying unit for conveying a sheet along a second conveying path toward the image forming unit, a first detection unit for detecting the sheet remaining in the first conveying path, a second detection unit for detecting the sheet remaining in the second conveying path, and a control unit for discharging the sheets in the first and second conveying paths from the image forming apparatus by simultaneously driving the first and second conveying units whether or not the sheets in the first and second conveying paths are conveyed superposed in the image forming unit, in accordance with the detection of the remaining sheets by the first and second detection units, before the image forming unit starts image formation.
REFERENCES:
patent: 4231567 (1980-11-01), Ziehm
patent: 4247193 (1981-01-01), Kaneko et al.
patent: 5154411 (1992-10-01), Saito et al.
patent: 5481336 (1996-01-01), Tachibana et al.
Sato Kaoru
Tachibana Tatsuto
Takahashi Masayoshi
Canon Kabushiki Kaisha
Ramirez Nestor
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