Sheet feeder for printer

Sheet feeding or delivering – Feeding – Multiple supplies

Patent

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Details

271116, 271117, 271127, 271160, 271171, 400629, 400647, B65H 344

Patent

active

049781120

ABSTRACT:
A sheet feeder is disclosed, which is mounted in a printer for feeding cut printing sheets one by one to a printing position in the printer. The sheet feeder comprises first and second sheet accommodation sections for accommodating respective stacks of printing sheets. First and second feed roller mechanisms are provided for the respective sheet accommodation sections. These roller mechanisms selectively receive a drive torque from a single reversible drive motor via a selective coupling mechanism. The selective coupling mechanism senses the direction of rotation of the drive motor, and selectively couples the drive motor to either one of the first and second roller mechanisms according to the sensed direction of rotation.

REFERENCES:
patent: 4248415 (1981-02-01), Steinhilber
patent: 4538799 (1985-09-01), Bhagwat
patent: 4564187 (1986-01-01), Costa et al.
patent: 4570919 (1986-02-01), Huang
patent: 4577849 (1986-03-01), Watanabe
patent: 4632379 (1986-12-01), Steinhilber
patent: 4645192 (1987-02-01), Watanabe
patent: 4664546 (1987-05-01), Runzi
patent: 4667947 (1987-05-01), Costa et al.
patent: 4711442 (1987-12-01), Runzi
patent: 4765605 (1988-08-01), Abbott
patent: 4838535 (1989-06-01), Yokoi et al.
patent: 4861017 (1989-08-01), Yamamoto et al.
patent: 4863153 (1989-09-01), Steinhilber
patent: 4865305 (1989-09-01), Momiyama et al.
Fallon et al., "Sheet Feeding Apparatus", 12-1976, p. 2440, vol. 19, No. 7.

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