Dot line printer

Details Dot line printer Dot line printer

1985-01-28

1986-07-22

Sewell, Paul T.

Printing

Selective or progressive

Bed and platen machines

101 9309, 400121, 400322, B41J 300

Patent

active

046012419

ABSTRACT:
A dot line printer in which, as its head carriage is driven, a plurality of printing heads arranged on the head carriage at equal intervals are moved in a direction perpendicular to the sheet feeding direction, to print on a printing sheet set on the platen. The dot line printer has a linear scale secured to the head carriage, and a linear sensor provided on a head carriage supporting frame, and a sensor for detecting the displacement of the linear scale to produce a detection signal which is processed to obtain the present position of the head carriage and the correct printing timing of the printing heads.

REFERENCES:
patent: 3789969 (1974-02-01), Howard
patent: 4053040 (1977-10-01), McGourty
patent: 4151447 (1979-04-01), von der Heide
patent: 4428693 (1984-01-01), Bovio

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