Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1997-10-21
2000-02-15
Le, N.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
4007021, B41J 2165
Patent
active
060244321
ABSTRACT:
A sealing timer (25) for measuring the time in which the recording head (7) is sealed by the capping device (10); an opening timer (26) for measuring the time in which the recording head (7) is opened to the atmosphere; and a cleaning control means having a first cleaning mode in which a predetermined quantity of ink is sucked, a second cleaning mode in which a larger quantity of ink than the quantity of ink sucked in the first cleaning mode is sucked, and a third cleaning mode in which a quantity of ink substantially equal to the quantity of ink sucked in the second cleaning mode is divided into two portions and the two portions may be sucked at two separate times. Wiping or rubbing is performed by the cleaning member (18) during a period of time when the two portions are sucked, the cleaning control device (20) slects at least one of the first, second and third cleaning modes on the basis of data of the timers (25) and (26) in accordance with a cleaning instruction, the three modes being used automatically selectively in accordance with the situation of the recording head (7) to thereby perform cleaning.
REFERENCES:
patent: 5903288 (1999-05-01), Yamaguchi
Patent Abstracts of Japan vol. 016, No. 132 (M-1229) Apr. 3, 1992 & JP 03 293153 A (Canon Inc) Dec. 24, 1991 *Abstract.
Patent Abstracts of Japan vol. 017 No. 126 (M-1381), Mar. 17, 1993 & Jp 04 308761 A(ALPS Electric Co Ltd) Oct. 30, 1992, *Abstract.
Aruga Yoshiharu
Suzuki Kazunaga
Toba Koichi
Le N.
Nguyen Judy
Seiko Epson Corporation
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