Servicing a newly-installed ink pen to eliminate uneven print qu

Details Servicing a newly-installed ink pen to eliminate uneven print qu Servicing a newly-installed ink pen to eliminate uneven print qu

1994-05-02

1996-06-18

Barlow, Jr., John E.

Incremental printing of symbolic information

Ink jet

Controller

347 23, 347 30, 347 35, 347 87, B41J 2165

Patent

active

055282695

ABSTRACT:
An inkjet printer has a pen holder for removably holding an ink pen, a detector circuit for detecting whether ink with a degraded quality is likely to be ejected by said ink pen, and a servicing circuit responsive to said detector circuit for causing an initial quantity of ink to be discharged from said ink pen to ensure that ink with a degraded quality will not be used during normal printing.

REFERENCES:
patent: 4577203 (1986-03-01), Kawamura
patent: 4791435 (1988-12-01), Smith et al.
patent: 4970553 (1990-11-01), Saito et al.
patent: 5162817 (1992-11-01), Tajika et al.

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