Printer

Details Printer Printer

1994-05-18

1996-08-13

Burr, Edgar S.

Typewriting machines

Sheet or web

Including programmed-control-system for record-medium feed

400 74, 400708, B41J 1142

Patent

active

055449654

ABSTRACT:
A color video printer can identify the length of a print sheet inserted therein for ejecting any print sheets other than a standard print sheet. The printer has a sheet feed sensor and another sensor disposed downstream of the sheet feed sensor with respect to the direction in which a print sheet is fed in the printer. After the leading end of an inserted print sheet is detected by the sheet feed sensor, the print sheet is fed until the leading end thereof is detected by the other downstream sensor. At this time, the length of the print sheet which is fed is equal to the distance, typically of 128 mm, between the sensors. The true length of the print sheet is calculated by adding, to 128 mm, the length of the print sheet which is further fed until the trailing end of the print sheet is detected by the sheet feed sensor.

REFERENCES:
patent: 4396307 (1983-08-01), Shah et al.
patent: 4569608 (1984-07-01), Watanabe
patent: 4727437 (1988-02-01), Mizoguchi
patent: 5071273 (1991-12-01), Kato
patent: 5169249 (1992-12-01), Kitabata
patent: 5321486 (1994-06-01), Nanbu et al.

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