Printer with validation paper feeding mechanism

Details Printer with validation paper feeding mechanism Printer with validation paper feeding mechanism

1995-01-19

1995-12-05

Eickholt, Eugene H.

Typewriting machines

Sheet or web

Including feed of plural record-media arranged side-by-side

400605, 4006084, 226 4, 101228, B41J 1150

Patent

active

054722870

ABSTRACT:
A printer having a validation paper feeding mechanism in which the validation paper feed is controlled by a single solenoid and only the validation paper feed can be effected even when a cut or continuous paper is set. A ratchet wheel and a validation roller are mounted on the rotatable shaft via a one-way clutch. The one-way clutch selectively transmits a torque of the rotatable shaft to the validation roller in the direction of the validation paper feed. The validation roller has an arcuate circumferential surface for feeding the validation paper and a chord flat surface for inserting the validation paper. The armature is angularly moved between a first position where it engages the positioning projection of the ratchet wheel for determining an initial position of the validation roller and a second position where it engages the pawls of the ratchet wheel for stopping the validation roller at a plurality of predetermined positions.

REFERENCES:
patent: 4027765 (1977-06-01), Crump et al.
patent: 4205770 (1980-06-01), Wojdyla
patent: 4229113 (1980-10-01), Anderson et al.
patent: 4403878 (1983-09-01), Hosogaya
patent: 4439051 (1984-03-01), Lawter
patent: 5139353 (1992-08-01), Ota
patent: 5146238 (1992-09-01), Numabe et al.
patent: 5149217 (1992-09-01), Narita
patent: 5308175 (1994-05-01), Ito

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