Ink jet printing apparatus

Details Ink jet printing apparatus Ink jet printing apparatus

2008-01-01

2008-01-01

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S096000

Reexamination Certificate

active

07314267

ABSTRACT:
An ink jet printing apparatus can prevent or suppress the generation, by a reaction liquid and ink, of a reaction product on the face surface of a discharge head, and can remove the ink, the reaction liquid or the reaction product adhering to the face surface so as to constantly maintain a stable printing quality. Immediately before a printing operation is initiated, an anti-coagulation liquid is sprayed on the face surface of a discharge head, and the discharge head performs the discharge operation (printing operation) with the anti-coagulation liquid applied to the face surface. When the printing operation has been completed, or when the printing of a predetermined amount of data has been performed, the face surface of the discharge head is wiped by blades to remove the ink and the reaction liquid. Since the anti-coagulation liquid is applied to the face surface in advance, the generation of the reaction product on the face surface is prevented or suppressed. Furthermore, even when a reaction product is adhered to the face surface, the coagulation of this product on the face surface can be prevented.

REFERENCES:
patent: 5381169 (1995-01-01), Arai et al.
patent: 5969731 (1999-10-01), Michael et al.
patent: 6378981 (2002-04-01), Wenzel et al.
patent: 6467873 (2002-10-01), Toba et al.
patent: 57-125059 (1982-08-01), None
patent: 57-133074 (1982-08-01), None
patent: 62-25055 (1987-02-01), None
patent: 4-115954 (1992-04-01), None
patent: 10-151759 (1998-06-01), None
English Translation of Japanese Laid-Open Patent Application No. 10-151759.

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