Method of cleaning thermal head

Details Method of cleaning thermal head Method of cleaning thermal head

1995-02-15

1996-10-08

Fuller, Benjamin R.

Incremental printing of symbolic information

Thermal marking apparatus or processes

400702, B41J 2917, B41J 232

Patent

active

055636462

ABSTRACT:
A thermal printer has a sheet cassette for containing plural stacked thermosensitive recording sheets, which are advanced one after another out of the sheet cassette toward a platen drum. During a printing step, a thermal head is pressed against a recording sheet set on the platen drum. While the recording sheet is pressed, the platen drum is moved relative to the thermal head, which thermally records an image on the recording sheet. A protective sheet for protecting the recording sheets is laid on the stacked recording sheets in the sheet cassette. The protective sheet is advanced to and set on the platen drum. The thermal head is pressed against the protective sheet. While the protective sheet is pressed, heat energy is generated through the thermal head. At the same time, the platen drum is driven for moving the protective sheet, to remove dust from the thermal head with the protective sheet.

REFERENCES:
patent: 4734704 (1988-03-01), Mizutani et al.

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