Typewriting machines – Control of print position along print-line by signal...
Patent
1995-07-14
1997-11-25
Burr, Edgar S.
Typewriting machines
Control of print position along print-line by signal...
400903, B41J 1930
Patent
active
056904401
ABSTRACT:
A controller for a serial printer carriage in a serial printer for printing characters line by line with an interval at the end of each line by moving a carriage with a motor, the controller comprises: an interval timer for setting an interval between the termination of printing one line and the commencement of printing the next line by the motor; a motor driver for starting supplying a driving current to the motor so as to print characters of one line at the timing determined by the output of the interval timer; an energy measuring unit for measuring the energy consumed by the motor per unit time; a limitation-value limiter for setting the limitation value of energy consumption by the motor per unit time; comparator for comparing the measured value of the consumed energy from the energy measuring unit with the limitation value of energy consumption; and interval adjuster for generating a time setting signal for extending the interval set by the interval timer when the comparison made by the comparator indicates that the consumed energy has reached the limitation value, and shortening the interval when the consumed energy has not reached the limitation value.
REFERENCES:
patent: 4678979 (1987-07-01), Hori
patent: 5431502 (1995-07-01), Orii
Patent Abstracts of Japan, vol. 4, No. 116 (M-027), Aug. 19, 1980 (JP-A-55 075 586, Jun. 6, 1980).
Burr Edgar S.
Kelley Steven S.
Seiko Epson Corporation
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