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Title:
【発明の名称】省電力化のための方法及び印刷装置
Document Type and Number:
Japanese Patent JP3093342
Kind Code:
B2
Abstract:
PURPOSE:To provide information processing method by which to set every part in system equipment in a power saved state during non-operation time and control the parts sequentially to save electric power supply to the entire system and its device. CONSTITUTION:The subject device is set in the ready mode, if it is reset, and the first step of a change system is this made under the control of CPU-P. In the second step, 'SLEEP' is set in a controller, if no data to be processed after completion of printing and the operation is turned to 'HALT' state. This setting leads to the sleep mode from the ready mode. 'Active mode' is only a step of its change system and the shift from the active mode to the ready mode is controlled by CPU. In the sleep mode, the first step of its change system signifies the introduction of a sheet, the operation of SW, data input and hardware interruption in CPU-P, as the shift from the sleep mode to the ready mode takes place. The second step is a shift from the sleep mode to the stop mode with no interference of the control by CPU-P.

Inventors:
Atsushi Taneda
Naohisa Suzuki
Koji Fukunaga
Hisashi Naito
Tsutomu Takahashi
Masaki Nishiyama
Jiro Tateyama
Application Number:
JP19033691A
Publication Date:
October 03, 2000
Filing Date:
July 30, 1991
Export Citation:
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Assignee:
Canon Inc
International Classes:
B41J29/38; G06F1/32; G06F3/12; G06F13/12; (IPC1-7): B41J29/38; G06F3/12
Domestic Patent References:
JP2106138A
JP2307777A
JP225363A
JP1264881A
Attorney, Agent or Firm:
Keizo Nishiyama (2 outside)