Film Unit Engagement/Disengagement Control - Canon imageRUNNER ADVANCE C3325 Series Service Manual

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Technical Explanation > Fixing System > Controls > Film Unit Engagement/Disengagement Control

■ Film Unit Engagement/Disengagement Control

The Fixing Film Unit is disengaged from the Fixing Pressure Roller under a specific condition
in order to prevent deformation of the Fixing Film/Fixing Pressure Roller due to heat and
pressure that arise when the drive of the Fixing Pressure Roller stops, and to improve jam
removability.
Engaged state
[1]
PS13
Sensor flag is ON
[2]
[3] [4]
[1] Pressure Release Gear
[3] Fixing Film
PS13 Fixing Pressure Release Sensor
2 Technical Explanation > Fixing System > Controls > Film Unit Engagement/Disengagement Control
Disengaged state
[1]
PS13
Sensor flag is OFF
[2]
[3] [4]
F-2-83
[2] Cam Gear
[4] Fixing Pressure Roller
Execution condition/timing of engagement
operation:
• At power-on(*)
• At recovery from sleep mode(*)
• At warm-up rotation
• When the Fixing Roller is in a disengaged
position at the start of a job
• At recovery from jam and error
* Disabled when the 24V interlock is
disconnected due to reasons such as door
being open.
Related Error Code:
E009-0000: Fixing pressure timeout error
The Fixing Pressure Release Sensor did not detect ON status within 10 sec after the
start of pressure application operation for fixing.
E009-0001: Fixing disengagement timeout error
The Fixing Pressure Release Sensor did not detect OFF status within 10 sec after the
start of fixing disengagement operation.
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Execution condition/timing of disengagement
operation:
• At power-off
• When entering sleep mode
• At occurrence of a jam
• When an error occurs (excluding E009/E014
of fixing drive system errors)
• When no fixing operation has occurred for 4
hours or more while the Fixing Film Unit is
engaged.
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