Canon imagePRESS C1 Service Manual - page 418
Chapter 7
7-69
roller.
2. After completing primary transfer, the DC controller outputs the secondary transfer outside roller attachment/detachment motor drive signal.
3. The clockwise rotation of the attachment/detachment cam
(thereby locking the secondary transfer outside roller in place against the ITB)
4. The patch image (paper-to-paper interval) remained on the ITB is attracted to the secondary transfer outside roller.
5. Clean the residual toner on the secondary transfer outside roller by the brush roller, wipe it off by the blade through via the bias roller to collect it into the
waste toner case.
6. After completing secondary transfer, the DC controller outputs the secondary transfer outside roller attachment/detachment motor drive signal.
7. The clockwise rotation of the attachment/detachment cam releases the attachment/detachment plate and pushes up the attachment/detachment arm.
(The secondary transfer outside roller is separated from the ITB)
F-7-84
[1] ITB
[2] Secondary transfer inside roller
[3] Secondary transfer outside roller
[4] Brush roller
[5] Bias roller
[6] Blade
[7] Waste toner
[8] Waste toner case
[9] Feeding driver PCB
M37: Secondary transfer outside roller drive motor
DC-CON: DC controller
Detection by Waste Toner Counter
The waste toner level collected in the waste toner case is calculated based on the image data sent from the main controller.
For the waste toner collected, see the value of the soft counter recorded in the DC controller.
The DC controller constantly monitors the soft counter. If it exceeds the specified counter value, execute the following steps.When it reaches the waste toner level
corresponding to 50,000 sheets, the waste toner full is alarmed. At that time, the DC controller displays the user message 'Waste toner case is nearly full'.
When it reaches the waste toner level corresponding to 60,000 sheets, the DC controller notices the waste toner full to the main controller.
[4]
[5]
[6]
[7]
[3]
[1]
[2]
DC-CON
HV3-SUB
HVT8
[9]
J3350
J1184
J26
J7
TR2_OUT
[8]
M37
J1306