Printer capable of correcting distance between print head and pr

Details Printer capable of correcting distance between print head and pr Printer capable of correcting distance between print head and pr

1989-08-14

1992-02-18

Wiecking, David A.

Typewriting machines

Including adjustment for optimum printing plane

By adjustment of carriage

4006904, B41J 25308

Patent

active

050888439

ABSTRACT:
After a printer lid has been opened, when a signal indicating that the lid is closed again and a signal indicating that there is a sheet in a print mechanism are received, the spacing or distance between a print head and the face of a sheet held against a platen is automatically adjusted to a desired value. Therefore, when a printing process is to be resumed after the lid has been opened during printing operation, the spacing between the print head and the face of the sheet is corrected even if the spacing may have been varied due to physical contact to the print head or the carriage mounting the print head by the operator, so that desired print quality will be maintained after the printing process is resumed.

REFERENCES:
patent: 4268177 (1981-05-01), Veale
patent: 4389129 (1983-06-01), Sugiura
patent: 4652153 (1987-03-01), Kotsuzumi
patent: 4676675 (1987-06-01), Suzuki
patent: 4759648 (1988-07-01), Kobayashi et al.
patent: 4789258 (1988-12-01), Gomoll et al.
patent: 4808019 (1989-02-01), Olson
patent: 4881835 (1989-11-01), Niikawa

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