Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1985-10-16
1987-09-08
Grimley, Arthur T.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 7, 355 8, G03G 1500
Patent
active
046920218
ABSTRACT:
An image forming apparatus and method which drives a display device and an optical scanning device to visually depict an image-reproducible range which is set in accordance with a selected magnification/reduction factor. The display device includes two indicators positioned adjacent the original document table and movable with respect to each other to indicate a first dimension on the document table. The optical scanning device includes an indicator which moves relative to the original document table to indicate the second dimension of the image-reproducible range. The apparatus further includes an interlocking device for interlockingly driving the display device with the movement of the optical scanning device. Control circuitry controls the driving of the interlocking device in accordance with the selected magnification/reduction factor and the size of the sheet upon which the copy is made. The control device controls the driving of the interlocking means until the display device is moved to a predetermined position, to permit the display device to interlockingly move with the movement of the optical scanning device. When the display device reaches the predetermined position, the interlocking means is de-energized to permit movement of the optical scanning device only.
REFERENCES:
patent: 4595273 (1986-06-01), Watanabe et al.
Grimley Arthur T.
Kabushiki Kaisha Toshiba
Pendegrass J.
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