Sheet feeder for an image forming apparatus

Details Sheet feeder for an image forming apparatus Sheet feeder for an image forming apparatus

1994-08-01

1996-01-09

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

With means to align sheet

27126501, 271270, 355317, B65H 534

Patent

active

054822653

ABSTRACT:
A sheet feeder incorporated in an image forming apparatus and allowing the distance between the preceding sheet and the succeeding sheet to be reduced to a minimum necessary one. A pair of control rollers whose transport speed is controllable are located upstream of an image forming section with respect to an intended direction of sheet transport. An image transfer and paper separation unit is located at the image forming section. The transport speed of the control rollers is made higher than an image forming speed for any desired period of time after the leading edge of a sheet has been gripped by said control rollers and before the leading edge reaches the image forming section. As a result the distance between the preceding and succeeding sheets is reduced to increase the number of images which can be formed for a unit time without the transport speed at the image forming section being increased.

REFERENCES:
patent: 5104110 (1992-04-01), Haibara
patent: 5119146 (1992-06-01), Nobumori
patent: 5197726 (1993-03-01), Nogami
patent: 5205548 (1993-04-01), Yamada

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