Electrographic printer paper tensioning device

Details Electrographic printer paper tensioning device Electrographic printer paper tensioning device

1975-10-28

1977-01-25

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

2421561, B65H 2306, B65H 5916

Patent

active

040047490

ABSTRACT:
An electrographic printer employs a constant-force spring to provide a positive means of preventing slack from occurring in the distributed segment of recording material existing between the source and a drive roller powered by a stepper motor. Further, the constant-force spring prevents backlash and, in cooperation with holding devices, skewing from occurring in the distributed segment of recording material.

REFERENCES:
patent: 1346700 (1920-07-01), Carlsen
patent: 1526087 (1925-02-01), Petersen

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