Technique for using one key for both form feed and cartridge exc

Details Technique for using one key for both form feed and cartridge exc Technique for using one key for both form feed and cartridge exc

1997-04-14

1999-04-13

Rogers, Scott

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

395114, 347 5, 347 16, 347 19, G06K 1516, B41J 29393

Patent

active

058945423

ABSTRACT:
A technique for using one key for both form feed and cartridge exchange for inputting many kinds of commands related to the functions thereof in order to simplify a key input unit of an operating panel in a printer capable of being controlled by a host using a DOS operating system. The technique for using one key for both form feed and cartridge exchange in the ink-jet printer, includes: (a) receiving key data generated by operating a unitary cartridge exchange form feed key; (b) checking whether or not paper is located at the printing position of the ink-jet printer after receiving the key data; (c) ejecting the paper from the printing position upon a determination that paper is located therein in step (b); (d) moving the papers of a paper tray to earliest printing position upon a determination that paper is absent therein in step (b); (e) checking once again whether or not paper is located at the printing position of the ink-jet printer after moving paper in step (e); and (f) moving the cartridge to a position in which it can be easily detached and attached upon a determination that paper is absent therein in step (e).

REFERENCES:
patent: 4327994 (1982-05-01), Barley et al.
patent: 4614421 (1986-09-01), Nishiyama
patent: 5311257 (1994-05-01), Ishi et al.
patent: 5546514 (1996-08-01), Nishiyama
patent: 5604844 (1997-02-01), Nishiyama

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