Electrophotographic copying apparatus with a selecting means of

Details Electrophotographic copying apparatus with a selecting means of Electrophotographic copying apparatus with a selecting means of

1985-08-23

1987-07-28

Moses, R. L.

Photocopying

Including fiber optics

355 3SH, 355 55, G03G 1500

Patent

active

046828770

ABSTRACT:
An electrophotographic copying apparatus is disclosed, which is provided with an original document size detector for detecting the size of an original document placed on a document platform. Further provided is a selector for selecting various magnification changing elements which calculate and select, on the basis of the size of the original document detected by the original document size detector and, the predetermined size of copy paper or the predetermined magnification ratio, a proper magnification ratio when the size of copy paper is predetermined, or a proper size of copy paper when the magnification ratio is predetermined. In the case that either or both of the original document and the copy paper are capable of being placed in such manner that the longitudinal direction thereof is brought in either a crossing or parallel relation with respect to the exposure scanning direction, an indicator for changing the direction of placement of the original document which indicates to change the direction of placement of the original document to such that the magnification ratio is larger or the image forming area does not exceed the size of the copy paper.

REFERENCES:
patent: 4277163 (1981-07-01), Ikesue et al.
patent: 4341460 (1982-07-01), Kohyama
patent: 4505579 (1985-03-01), Furuichi
patent: 4575227 (1986-03-01), Ito et al.
patent: 4585332 (1986-04-01), Shenoy
patent: 4588289 (1986-05-01), Imoto

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