Canon Paper Folding Unit-J1 Service Manual page 46

3. Folding operation
• The folding position adjustment feed clutch (CL3) turns off and the folding position adjustment back clutch (CL4) turns
on.
• The Fold/Separation Solenoid (SOL3) turns off 150 ms after it turned on.
• The inlet motor 1 (M5) and inlet motor 2 (M12) start turning at a speed of 400 mm after elapsing by 150 ms since the
Fold/Separation Solenoid (SOL3) turned off.
• A loop is formed at the registration roller, starting the first fold operation.
• The release timing sensor (S31) turns off to deactivate the folding position adjustment back clutch (CL4).
• The leading edge of the first fold bumps against the leading edge stopper, starting the second fold operation.
• Flapper Solenoid (SOL4) turns on after Upper Stopper Paper Sensor (S33) turned off
adjustment motor
CL4
Folding position
adjustment
M15
back clutch
Folding position
CL3
Folding position
adjustment
feed clutch
Fold/Separation Solenoid
Leading edge stopper
SOL3
Fold/Separation
Solenoid
M11
Folding feed motor
40
2. Technical Explanation
SOL3