Printer paper feed and carriage control device

Details Printer paper feed and carriage control device Printer paper feed and carriage control device

1991-05-28

1993-08-24

Wiecking, David A.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-return mechanism

400706, B41J 1970

Patent

active

052383156

ABSTRACT:
A control device for a printer for printing on a paper having a print head supported on a movable carriage and a paper feeding device. The printer includes a detector for detecting the presence or absence of paper in the printer wherein a predetermined region remains on the paper when the detector detects the absence of paper. The control device calculates the length of the printable region remaining on the paper and determines whether a sufficient remaining printable region is available at the trailing end of the paper. A paper feeder device feeds the paper in a predetermined amount. A carriage control device controls driving of the carriage. Driving of the carriage starts at a time before the paper feeding has ceased such that the speed of the carriage reaches a printing level when paper feeding has ended.

REFERENCES:
patent: 4257712 (1981-03-01), McGuire
patent: 4671683 (1987-06-01), Ueno
patent: 4934845 (1990-06-01), Kato

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