Capping device and printer including the same

Details Capping device and printer including the same Capping device and printer including the same

1997-09-03

2000-03-28

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 29, B41J 2165

Patent

active

060422157

ABSTRACT:
A printer has a temperature sensor for detecting its internal temperature. When a print head is covered with a cap of a cap unit, a machine temperature T1 is stored in a controller. After a lapse of a predetermined time, a machine temperature T2 is measured. If a predetermined temperature difference exists between T1 and T2, the cap is released transiently from the print head to prevent the pressure of the gap between the cap and the print head from reaching a level at which the meniscus is destroyed. Not only the machine temperature, but the elapsed time since the start of capping may be used as a basis for control.

REFERENCES:
patent: 4684963 (1987-08-01), Naka
patent: 4707705 (1987-11-01), Hara et al.
patent: 5493319 (1996-02-01), Hirabayashi et al.
patent: 5543826 (1996-08-01), Kuronuma et al.
patent: 5805181 (1998-09-01), Tanaka et al.
patent: 5867184 (1999-02-01), Quintana
patent: 5912681 (1999-06-01), Uetuki et al.

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