Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1986-07-09
1987-09-29
Prescott, A. C.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 3R, 355 3SH, 355 8, G03G 1500
Patent
active
046965645
ABSTRACT:
An image forming apparatus includes an optical detection unit which detects the presence of a copy paper and determines an offset amount of the copy paper in the direction perpendicular to a feeding direction of the copy paper. An adjusting unit adjusts a position of a visible image, in the direction perpendicular to the feeding direction of the copy paper, formed on the copy paper by a visible image forming unit on the basis of the determination of the detection unit. The image forming apparatus may also include a comparing circuit which compares an actual feeding time interval of the copy paper between an aligning roller pair and the detection unit with a prescribed feeding time interval and determines a discrepancy therebetween and a control circuit controlling a commencement timing of the operation of a scan member on the basis of the result of the comparing circuit, thus enabling the image forming apparatus to adjust a position of the visible image, in the feeding direction of the copy paper, formed on the copy paper.
REFERENCES:
patent: 4571055 (1986-02-01), Nishiyama
patent: 4571067 (1986-02-01), Nishiyama
patent: 4572650 (1986-02-01), Okuda
patent: 4589759 (1986-05-01), Fantuzzo et al.
patent: 4589765 (1986-05-01), Perun et al.
patent: 4626924 (1986-12-01), Watanabe
patent: 4634260 (1987-01-01), Watanabe
Kabushiki Kaisha Toshiba
Prescott A. C.
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