Output controller for a dot printer head

Details Output controller for a dot printer head Output controller for a dot printer head

1992-08-03

1996-01-02

Powell, Mark R.

Typewriting machines

Sheet or web

Including friction-feed means

40012401, B41J 312

Patent

active

054816548

ABSTRACT:
A printing mode setting portion outputs energizing time data corresponding to a selected printing mode when selecting the printing mode according to operation of the operation unit. Based on the energizing time data, the energizing time period of a head energizing signal which is output from a head driving portion to a driving coil of a dot printer head is controlled by the energizing time control portion 6. When printing mode having a high dot density is selected, printing energy is reduced and the energizing time period is refined for the driving coil 8, thus making it made possible to lower the noise level.

REFERENCES:
patent: 4027761 (1977-06-01), Quaif
patent: 4602880 (1986-07-01), Oba
patent: 4774882 (1988-10-01), Ohsawa et al.
patent: 4833626 (1989-05-01), Malcolm
patent: 5078520 (1992-01-01), Yano et al.
patent: 5150311 (1992-09-01), Lang et al.
patent: 5167459 (1992-12-01), Yano et al.
patent: 5170188 (1992-12-01), Bowers et al.
patent: 5268993 (1994-12-01), Ikenoue et al.

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