Canon imageRUNNER 1750 Series Service Manual page 75

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Technical Explanation > Image Formation System > Controls > Toner Supply Area
● Detection for replacing Toner Container
This machine does not have a sensor to detect replacement of a Toner Container. Therefore,
execute the toner supply sequence as follows to determine replacement of a Toner Container.
• Toner supply sequence
1. Make the Main Motor (M2), Developing Clutch, Hopper Motor (M6) and Bottle Motor (M5)
driven to supply toner.
2. When the Hopper Level Sensor detects presence of toner, the machine resumes normal
operation. When the Hopper Level Sensor failed to detect presence of toner for more than
60 sec, it is determined that there has been no replacement of a Toner Container.
• Replacement when the power is turned ON
When the Front Cover is opened/closed, the machine determines that a Toner Container has
been replaced and executes toner supply sequence.
• Replacement when the power is turned OFF or the machine is at sleep 2 state
The machine executes the toner supply sequence at power-on if there was a toner-out alert
or toner-out message when the power was turned OFF the last time.
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