Printer with two-stage skew adjustment

Details Printer with two-stage skew adjustment Printer with two-stage skew adjustment

1989-09-18

1992-01-07

Eickholt, Eugene H.

Typewriting machines

Typing by other than type-face or type-die

Thermal

4002403, 400618, B41J 302

Patent

active

050785192

ABSTRACT:
Two-stage skew adjustment is achieved by first using only the drive force of the platen roller with the pinch roller and the capstan roller drive disrupted by a gap opening mechanism to effect a large skew adjustment. Then, the gap is closed and the platen roller, which has a Teflon-resin coating thereon and a larger diameter than the capstan roller or pinch roller, effects a small skew adjustment. Thereafter, printing is effected by feeding the paper in a reverse direction to register with an inked ribbon feed of a primary ribbon using the platen roller drive and the pinch roller drive with the skew cycle repeated for each ribbon color segment to achieve improved multicolor printing registration.

REFERENCES:
patent: 4327366 (1982-04-01), Schafter et al.
patent: 4552470 (1985-11-01), Yana et al.
patent: 4562443 (1985-12-01), Matsuno et al.
patent: 4577199 (1986-03-01), Saiki et al.
patent: 4625218 (1986-11-01), Watanabe
patent: 4668961 (1987-05-01), Hiramatsu
patent: 4693620 (1987-09-01), Harumatsu
patent: 4698650 (1987-10-01), Watanabe et al.
patent: 4738555 (1988-04-01), Nagashima
patent: 4750006 (1988-06-01), Hashimoto
patent: 4769103 (1988-09-01), Koiki et al.

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