Photocopying – Contact printing – Light boxes
Patent
1988-09-07
1990-01-23
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355271, G03G 1514, G03G 2100
Patent
active
048961914
ABSTRACT:
A gap produced between a sheet intruding guide and a surface of a drum is kept to a predetermined value with an allowable tolerance by positioning the sheet intruding guide together with an image transcription unit placed under the drum and constantly pushed toward the drum surface so that a space between the drum surface and the image transcription unit is kept constant. The sheet intruding guide can be lifted up and held away from the image transcription unit when the drum is removed upward, and released from the holding and set back to its regular position mechanically when the drum is lowered back to its regular position.
REFERENCES:
patent: 3905697 (1975-09-01), Komori et al.
patent: 4803510 (1989-02-01), Maeda
Houki Youji
Nonomura Tomohiro
Ohyabu Keiji
Watarai Shinichi
Fujitsu Limited
Grimley A. T.
Hoffman S. L.
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