Photocopying – Contact printing – Light boxes
Patent
1993-08-10
1995-05-23
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355308, 355309, 355317, G03G 2100, G03G 1500
Patent
active
054186048
ABSTRACT:
Disclosed are an image forming method for checking pickup of a sheet on which an image is to be formed before correcting skewing of the sheet, and an image forming apparatus. This method comprises a first step of permitting a pickup roller to pick up a sheet from a sheet retaining unit and causing the leading edge of the sheet to abut against resist rollers; a second step of permitting a detecting mechanism to detect that the sheet has been picked up by the pickup roller; a third step of rotating the pickup roller by a predetermined amount according to the detection of the detecting mechanism; a fourth step of driving the resist rollers to feed the sheet and driving an image forming mechanism for forming an image on the sheet; and a fifth step of permitting the image forming mechanism to form an image on the fed sheet. The apparatus comprises a sheet retaining unit for retaining sheets; a pickup roller for picking up a sheet from the sheet retaining unit; resist rollers against which the leading edge of the sheet abuts; an image forming mechanism for forming an image on a sheet fed by the resist rollers; a detecting mechanism for detecting that the sheet has been picked up by the pickup roller; and a controller for rotating the pickup roller, then rotating the pickup roller by a predetermined amount according to a sheet detection output of the detecting mechanism, then stopping rotating the pickup roller, and then rotating the resist rollers.
REFERENCES:
patent: 5056771 (1991-10-01), Beck et al.
patent: 5104110 (1992-04-01), Haibara
patent: 5136342 (1992-08-01), Ida et al.
patent: 5216472 (1993-06-01), Muto et al.
patent: 5277415 (1994-01-01), Kinoshita et al.
patent: 5278623 (1994-01-01), Kasahara et al.
Hamada Yasunori
Hayashida Nobuyuki
Houki Yoji
Inagaki Haruhisa
Nagakura Masanao
Brase Sandra L.
Braun Fred L.
Fujitsu Limited
LandOfFree
Image forming method and apparatus with automatic skew control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image forming method and apparatus with automatic skew control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming method and apparatus with automatic skew control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2143818