Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2005-08-09
2005-08-09
Meier, Stephen D. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Controller
C347S029000, C358S001130, C358S001140
Reexamination Certificate
active
06926380
ABSTRACT:
For an ink jet recording apparatus that utilizes the STOP mode function of a CPU to reduce power consumption and a method for controlling the recording apparatus, many NMI interrupts occur due to chattering generated upon switching when the trigger for the restoration from the STOP mode is effectuated by use of the power switch, and the normal ON/OFF process for the power supply is disabled. For example, therefore, an ink jet recording apparatus, which is provided with a CPU having plural modes including a mode to reduce the power consumption by suspending the clock signal as an operational mode, and receives a signal from a power switching unit as an NMI interrupt signal for the execution of NMI interrupt process, is arranged to be provided with a controller for prohibiting the NMI interrupt until operation is completed by way of the status of the recording apparatus with respect to the NMI interrupt process to be executed by the input of the signal from the power switching unit.
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Narazaki Sadatoshi
Tanaka Sohei
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Liang Leonard S.
Meier Stephen D.
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