Inkjet printer checking nozzle and providing abnormal nozzle...

Details Inkjet printer checking nozzle and providing abnormal nozzle... Inkjet printer checking nozzle and providing abnormal nozzle...

2006-05-02

2006-05-02

Feggins, K. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07036903

ABSTRACT:
An inkjet printer checks whether each nozzle on a printing head is normal, and upon receipt of a nozzle checking command for a nozzle of a printing head through an inputting unit, cuts off a first driving power supply provided during a normal operation and drives in sequence a plurality of nozzle driving units using a second driving power supply. Through such operation, the inkjet printer determines a state of each nozzle driving unit in accordance with an output signal from a comparator comparing a voltage level during driving of each nozzle driving unit with a reference voltage, and then stores a nozzle number corresponding to the nozzle driving unit whose failure is detected. Upon completion of checking for each nozzle driving unit, the stored nozzle number representing an abnormal nozzle is displayed on a display. Therefore, it is possible for a user to check an abnormal state of the nozzle driving unit and to recognize exactly reasons for an improper dot formation on a printing medium, whereby ink consumption due to unnecessary spitting is prevented.

REFERENCES:
patent: 4996487 (1991-02-01), McSparran et al.
patent: 5072235 (1991-12-01), Slowik et al.
patent: 5319389 (1994-06-01), Ikeda et al.
patent: 5786828 (1998-07-01), Yamamoto
patent: 6076914 (2000-06-01), Imai
patent: 6120125 (2000-09-01), Kim
patent: 6130683 (2000-10-01), Ju
patent: 6199969 (2001-03-01), Haflinger et al.
patent: 6371590 (2002-04-01), Hah
patent: 6375299 (2002-04-01), Foster et al.

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