Computer graphics processing and selective visual display system – Data responsive crt display control – Graphic and alphanumeric display
Patent
1997-11-28
1999-11-30
Barlow, John
Computer graphics processing and selective visual display system
Data responsive crt display control
Graphic and alphanumeric display
347 14, 347 30, B41J 2165, B41J 2938
Patent
active
059950676
ABSTRACT:
An ink jet recording apparatus detects the temperature and humidity of the environment in which the ink jet recording apparatus is used when the power-supply is turned on, and checks the detected levels. If the detected levels are lower than the predetermined levels, no ink exhaust is executed as uniquely set, but the number of predischarges is set in accordance with the detected levels. Hence the recording apparatus rises. Also, the standby time of the recording apparatus is measured, and after the recording apparatus rises, the recovery mode is automatically selected in accordance with the temperature, humidity, and standby time. Also, depending on the conditions, the predischarges are executed in the number of discharges which has been changed, thus making it possible to reduce the ink consumption for the operations other than printing, and implement shortening the time required for the recovery operation.
REFERENCES:
patent: 4176363 (1979-11-01), Kasahara
patent: 4692777 (1987-09-01), Hasumi
patent: 4970527 (1990-11-01), Gatten
patent: 5428379 (1995-06-01), Kaneko et al.
patent: 5572242 (1996-11-01), Fujii et al.
Terasawa Koji
Yamaguchi Sanko
Barlow John
Canon Kabushiki Kaisha
Hallacher Craig A.
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