Global Patent Index - EP 0750988 A3

EP 0750988 A3 19970730 - Ink jet printing apparatus, a driving device for driving the ink jet printing apparatus, and an ink jet printing method

Title (en)

Ink jet printing apparatus, a driving device for driving the ink jet printing apparatus, and an ink jet printing method

Title (de)

Tintenstrahldruckvorrichtung, Vorrichtung zum Treiben einer Tintenstrahldruckvorrichtung und Tintenstrahldruckverfahren

Title (fr)

Appareil d'impression à jet d'encre, dispositif pour entraîner l'appareil d'impression à jet d'encre et procédé d'impression à jet d'encre

Publication

EP 0750988 A3 19970730 (EN)

Application

EP 96109845 A 19960619

Priority

JP 16168195 A 19950628

Abstract (en)

[origin: EP0750988A2] An image signal, outputted from a host machine, is temporarily stored in an image signal buffer, and converted into bit signals for the heat generating resistors in an image processing circuit. Temperature information is derived from a thermistor attached to a ink jet print head, and converted into a digital signal by an A/D converter, and the digital signal is sent to a processor. The processor determines a correction level on the basis of the location of a block and the number of concurrent drives while referring to a correction-level determining table. The processor then determines a drive pulse condition on the basis of the correction level and a temperature of the ink jet print head while referring to a look-up tables. A drive pulse control circuit prepares a drive pulse signal on the basis of the bit signals of one line and the drive pulse condition, and drives the ink jet print head. <IMAGE>

IPC 1-7

B41J 2/05

IPC 8 full level

B41J 2/05 (2006.01); B41J 2/12 (2006.01); B41J 2/125 (2006.01); B41J 2/14 (2006.01); B41J 2/175 (2006.01)

CPC (source: EP)

B41J 2/04543 (2013.01); B41J 2/04563 (2013.01); B41J 2/04568 (2013.01); B41J 2/0458 (2013.01); B41J 2/04588 (2013.01); B41J 2/04591 (2013.01); B41J 2/04598 (2013.01); B41J 2/14129 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0750988 A2 19970102; EP 0750988 A3 19970730; JP H0911463 A 19970114; TW 307718 B 19970611

DOCDB simple family (application)

EP 96109845 A 19960619; JP 16168195 A 19950628; TW 85107748 A 19960627