Secondary cassette feeder for image forming apparatus

Details Secondary cassette feeder for image forming apparatus Secondary cassette feeder for image forming apparatus

1997-11-10

2000-03-07

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Multiple supplies

271145, 271162, B65H 344, B65H 526

Patent

active

060329424

ABSTRACT:
A secondary cassette feeder enhances the capacity of an image forming apparatus having a main body provided with a primary cassette feeder for introducing sheets of print media to the apparatus and a first pickup roller, disposed inside the main body and driven by a motor, for feeding the sheets of print media in accordance with a synchronizing signal. The secondary cassette feeder includes: a plurality of idler gears engaged with the first pickup roller; and a second pickup roller, engaged with the idler gears, for feeding auxiliary sheets of print media in accordance with the synchronizing signal. The secondary cassette feeder further includes a set of contiguous gears, engaged with at least one of the idler gears, for driving the second pickup roller. The contiguous gears are ganged together by a swing arm, the swing arm being biased by a spring anchored at an interior point of the secondary cassette feeder. The idler gears are passive gears, disposed so as to transfer drive power from the first pickup roller to the second pickup roller.

REFERENCES:
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patent: 4770555 (1988-09-01), Deschamps et al.
patent: 4822019 (1989-04-01), Nagira
patent: 4958822 (1990-09-01), Rutishauser et al.
patent: 5240238 (1993-08-01), Lee
patent: 5666595 (1997-09-01), Sameshima et al.
patent: 5732321 (1998-03-01), Ishizuka et al.

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