Roll paper loading mechanism for a printer

Details Roll paper loading mechanism for a printer Roll paper loading mechanism for a printer

1999-11-03

2000-12-05

Funk, Stephen R.

Typewriting machines

Sheet or web

For feeding web record-medium

400693, B41J 1126

Patent

active

061557307

ABSTRACT:
A roll paper loading mechanism 2 for a printer 1 has a slide frame 25 attached to a cover frame 23, which opens and closes a top opening 22b. This cover frame 23 pivots open and closed in conjunction with the opening and closing of a cover frame 28. A platen roller 26 is held on an end of the slide frame 25 in a manner enabling the platen roller 26 to turn. After the top opening 22b to the roll paper holding unit is closed by the cover frame 23, the other cover frame 28 can pivot independently. This independent pivoting motion of the cover frame 28 causes the slide frame 25 to slide forward to a position at which the platen roller 26 is positioned to an opposed position with a constant gap to the print head 8. This arrangement increases the sliding distance of the slide frame 25, and thereby reduces the pivot radius needed to fully open the top opening 22b. As a result, the area above the top opening 22b can be efficiently used to position some other component. A roll paper loading mechanism whereby the opening and closing mechanism for the roll paper holding unit can be compactly configured can thus be provided for a printer.

REFERENCES:
patent: 4729681 (1988-03-01), Moser
patent: 5230576 (1993-07-01), Sone
patent: 5546270 (1996-08-01), Konno et al.
patent: 5672020 (1997-09-01), Leonard et al.
patent: 5887999 (1999-03-01), Smith et al.

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