Canon LBP-1260, Руководство по обслуживанию

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CHAPTER 2
3. Fixing roller heater start sequence
The sequence
of operations from power-on
to standby is as follows:
The CPU turns the fixing roller heater
ON a preset time after power-ON (after
CPU
The CPU assumes a fixing unit error
when the upper fixing roller does not
reach 175°C for initial warm-up)
within 200 seconds after the fixing
heater is turned ON.
When the upper fixing roller
temperature reaches 175°C (190°C for
initial warm-up temperature control),
the READY signal is output to
the video controller.
After the signal is output. 175°C
(190°C for temperature control in the
is maintained until the PRINT
signal is sent from the video
controller.
Upper fixing roller
temperature
2 3 0 - - - - - - - - - - - - - - - - - - -
Abnormally high
temperature-detection
temperature
Abnormally low
temperature-detection
temperature
Power ON signal ON signal ON Last rotation end Power OFF
Figure
2-37