Precise center line registration of a substrate

Details Precise center line registration of a substrate Precise center line registration of a substrate

1980-04-03

1982-06-15

Truhe, J. V.

Photocopying

Including fiber optics

355 14SH, 271228, 271251, 226 21, G03G 1500, B65H 916, B65H 2526

Patent

active

043347592

ABSTRACT:
Apparatus for precise center registration of a sheet with respect to a fixed reference line such as the center line in a copier. To accomplish this, a sidewall and an associated sensor move in unison relative to the machine center line. With the sheet registered against the sidewall, the sidewall and the sensor which are maintained equidistant from the machine center line move until the sensor senses the edge of the sheet. The motion is then stopped by a signal from the sensor thereby providing precise center line registered sheets.

REFERENCES:
patent: 1951901 (1934-03-01), Cottrell
patent: 2178304 (1939-10-01), Holness
patent: 2666639 (1954-01-01), Frommer
patent: 2782030 (1957-02-01), Webster et al.
patent: 2842361 (1958-07-01), Miller
patent: 3024955 (1962-03-01), Powers, Jr.
patent: 3090534 (1963-05-01), Frommer et al.
patent: 3325072 (1967-06-01), Black et al.
patent: 3473035 (1969-10-01), Gardner et al.
patent: 4211399 (1980-07-01), McGowan
patent: 4245836 (1981-01-01), Joosten
IBM Disclosure Bulletin, vol. 18, No. 5, Oct. 1975, p. 1307, "Sheet Aligner", Harding et al.

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