Canon LBP-1000 Service Manual page 45

CHAPTER 2
c. Abnormal warm-up 2 (initial/print temperature control mode)
The CPU assesses an abnormal warm-up 2 when the temperature does not exceeds the point of
5 C lower than the target print temperature within 75 seconds after starting the supply of power
to the heater.
d. Low temperature during temperature control (print/between-page temperature con-
trol mode)
The CPU assesses a low temperature during temperature control when the detected temperature
is lower than 120 C for 1 second or more continuously in the print/between-page temperature
control mode.
e. Broken thermistor wire (all modes)
The CPU assesses a broken thermistor wire when the output voltage from the thermistor is
about 3.2V or more for 1 second or more continuously.
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