Paper transport device for color thermal printer

Details Paper transport device for color thermal printer Paper transport device for color thermal printer

1997-11-21

1999-11-23

Bennett, Christopher A.

Typewriting machines

Sheet or web

Including friction-feed means

400636, 400642, B41J 1302, B41J 1310

Patent

active

059889071

ABSTRACT:
A transport roller device of a color thermal printer is constituted of a capstan roller and a main press roller for nipping recording paper therebetween and transporting the recording paper selectively in opposite directions. The transport roller device further has a supplemental guide member for keeping the recording paper in contact with a peripheral surface of the capstan roller through a constant angle in either transporting direction, thereby to maintain paper transporting amount per a rotational angle of the capstan roller unchanged.

REFERENCES:
patent: 4491854 (1985-01-01), Habelt et al.
patent: 4500219 (1985-02-01), Lange et al.
patent: 4606663 (1986-08-01), Christoph et al.
patent: 5011314 (1991-04-01), Fujii
patent: 5056944 (1991-10-01), Gillio
patent: 5092690 (1992-03-01), Grimm et al.
patent: 5186556 (1993-02-01), Koyanagi
IBM Technical Disclosure Bulletin Vo. 21, No. 2, "Document Entry Mechanism . . . ", Jul. 1978.

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