Transfer Unit - Canon imageRUNNER 2525 Series Service Manual

• Set a detection timing. (Service mode> #PRINT> #PRINT NUMERIC> 171)
Detect it at a toner residual quantity counter (total of rotary time of the Hopper motor).
Set it at toner residual quantity 40-0%.
Detection method 2
• Detect it in sub hopper toner sensor (TS2).
If the sub hopper toner sensor (TS2) keeps detecting the absence of the toner for more than 90 sec after the drive of the
bottle motor (M6) has been started, the detect.
(Toner residual quantity 10-1%)
*3 Exchange completion alarm
When detected a toner with two sensors (TS1/TS2) after the exchange of the toner container, a signal is notified of.
<Related error code>
E020-0000: The path between the sub hopper and the developing unit is clogged with toner.
E024-0000: The connector (J207) of developing unit toner sensor (TS1) is disconnected.
E024-0001: The developing unit toner sensor (TS1) is disconnected.
E025-0000: The connector (J207) of sub hopper toner sensor (TS2) is disconnected.
E025-0001: Failure of the bottle motor (M6)

■ Transfer Unit

The transfer unit mainly consists of the static eliminator and transfer roller which rotates in connection with the drum unit.
● Transfer Bias/Separation Static Eliminator Bias Control
DC bias is applied to the transfer roller and static eliminator.
Static eliminator
Transfer charging roller
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2. Technical Explanation