Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1996-12-17
2000-09-05
Le, N.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 200
Patent
active
061132136
ABSTRACT:
In order to provide a recording apparatus having higher reliability with a low cost and simple construction, a rank heater representative of the characteristics of the recording head is provided, the driving condition therefor is established based on the resistance value of the rank heater, any erroneous mounting of the head is detected by the resistance value, and the recording control is modified by identifying the type of the mounted head. The resistance range exhibited by the rank heater is set different according to the type of the head, so that the different recording heads would not exhibit the same resistance value as each other. The resistance value is detected at the side of the apparatus, being detected whether the recording head is suited for the apparatus. In an apparatus in which a plurality of types of interchangeable heads are used, the invention is effective not only for detection of the head type, but also for detection of characteristics of the recording head.
REFERENCES:
patent: 5033887 (1991-07-01), Bauerle
patent: 5049898 (1991-09-01), Arthur et al.
patent: 5289210 (1994-02-01), Takayanagi
patent: 5363134 (1994-11-01), Barbehenn
Canon Kabushiki Kaisha
Le N.
Vo Anh T. N.
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