Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1986-02-04
1987-03-31
Braun, Fred L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 7, 355 8, 358300, G03G 1522
Patent
active
046538992
ABSTRACT:
The apparatus includes an original table, a transmission light emitting section, an erasure area specifying section for shifting the light emitted from the transmission light emitting section to an unnecessary portion of the original to specify a portion to be erased, a memory, a first controller for causing the memory to store position data representing the portion to be erased specified by the erasure area specifying section, a data hold request section, a data holding section, having a holding medium for holding written data, which can repeatedly read out the data held in the holding medium, a second controller for reading out the position data stored in the memory to hold it in the data holding section upon request from the data hold request section, a held data readout request section, a third controller for reading out the position data held in the data holding section so as to temporarily store the readout data in the memory upon request from the held data readout request section, an original scanning section, an image forming section, an image erasing section for selectively erasing an image to be formed by the image forming section, and a fourth controller for reading out the position data stored in the memory by the first or third controller directly or through the data holding section during an image forming operation of the image forming section to supply the readout data to the image erasing section.
REFERENCES:
patent: 3827799 (1974-08-01), Koizumi
patent: 3997873 (1976-12-01), Thornton
patent: 4045218 (1977-08-01), McVeigh
patent: 4157822 (1979-06-01), Miller
patent: 4215929 (1980-08-01), Sato et al.
patent: 4417805 (1983-11-01), Kishi
patent: 4595273 (1986-06-01), Watanabe et al.
Braun Fred L.
Kabushiki Kaisha Toshiba
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