Printing apparatus

Details Printing apparatus Printing apparatus

1995-07-27

1998-01-27

Hilten, John S.

Typewriting machines

Including selection of type-face by...

Including error detection

400175, 347 19, B41J 212

Patent

active

057116199

ABSTRACT:
In a printing apparatus of the type in which a printing head is detachable to a carriage, a detecting circuit is provided for detecting whether or not a printing head 8 is mounted on a carriage. A CPU 2 included in the printing apparatus supervises the output of the detecting circuit at every predetermined time interval. When determined the printing head 8 is not mounted, the supplement of the driving voltage for the printing head 8 is suspended.

REFERENCES:
patent: 4872027 (1989-10-01), Buskirk et al.
patent: 5235351 (1993-08-01), Koizumi
patent: 5398053 (1995-03-01), Hirosawa et al.

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