Printing apparatus capable of distinguishing functioning abnorma

Details Printing apparatus capable of distinguishing functioning abnorma Printing apparatus capable of distinguishing functioning abnorma

1992-02-27

1993-04-20

Wiecking, David A.

Typewriting machines

Safety switch or condition-responsive-cutoff switch for...

400 74, B41J 2938

Patent

active

052036367

ABSTRACT:
There is described a printer with a mechanism for detecting abnormality in the printing mechanism such as a type font wheel. The detection at the start of power supply is effected with a criterion different from that in the course of printing operation, in order to simplify the operation for the initial errors encountered at the start of power supply.

REFERENCES:
patent: 173718 (1876-02-01), Edison
patent: 4389129 (1983-06-01), Sugiura
patent: 4582438 (1986-04-01), Okabayashi

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