Canon Paper Folding Unit-J1 Service Manual page 50

2. Paper feeding operation
* For thin paper, the machine performs the following steps in advance:
• Turns the folding position adjustment motor (M15) in the reverse direction at a speed 50 mm/s, and stops the folding
position adjustment motor (M15) after feeding the paper by 5.0 mm.
• Turns on the Fold/Separation Solenoid (SOL3), and waits for 300 ms.
* The succeeding steps are the same for both plain paper and thin paper.
• The folding position adjustment motor (M15) turns at a speed of 400 mm/s.
• Without thin paper,The folding position sensor (S32) turns on to activate the Fold/Separation Solenoid (SOL3).
• When the paper has been fed 10.0 mm since its trailing edge passed through the released rollers (and 150 ms have
passed after the Fold/Separation Solenoid turned on), the Fold/Separation Solenoid (SOL3) turns off.
• When the paper has been fed 10.0 mm since its trailing edge passed by the trailing edge stopper, the folding position
adjustment motor (M15) stops.
Trailing edge
stopper
M15
Folding position
adjustment motor
SOL3
Fold/Separation Solenoid
M9
C-fold stopper motor
S32
Folding position sensor
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2. Technical Explanation