Printing apparatus and power supply control method

Details Printing apparatus and power supply control method Printing apparatus and power supply control method

2006-07-26

2008-09-02

Nguyen, Thinh H (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S057000

Reexamination Certificate

active

07419236

ABSTRACT:
There are provided a printing apparatus having an arrangement capable of stably applying a voltage without using any special power supply control unit, and a power supply control method. According to the method, a signal representing a change of an image signal is generated in the ASIC of the printing apparatus main body. A discharge circuit which is arranged on the power supply path extending from the power supply unit and quickly decreases the voltage upon power-off is also used as a circuit for stabilizing the voltage. While a power supply unit and DC/DC converter with a conventional arrangement are adopted without adding any new component, a compact, low-cost power supply circuit with high voltage stability is implemented.

REFERENCES:
patent: 6454377 (2002-09-01), Ishizaki
patent: 6652057 (2003-11-01), Masuda et al.
patent: 6831449 (2004-12-01), Nishida et al.
patent: 2003-211671 (2003-07-01), None
patent: 2003-225997 (2003-08-01), None

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