Konica Minolta bizhub c650 Service Manual page 293

7. Z-folding section
A. Operation timing
1. The 2nd folding stopper motor (M3) turns ON to drive the 2nd folding stopper to the
appropriate position in accordance with the paper size when the paper size detect
board (PSDTB) detects the leading edge of the paper.
2. The 2nd folding stopper motor rotates in the reverse direction to move the 2nd fold-
ing stopper to the home position when the conveyance sensor (PS1) detects the
leading edge of the paper after the 2nd folding. It opens the paper exit path.
3. The 2nd folding stopper motor turns ON to replace the stopper to the original posi-
tion for the subsequent Z-folding when the exit sensor (PS9) detects the trailing
edge of the paper.
Paper size detect board (PSDTB)
2nd stopper home sensor (PS4)
2nd stopper motor (M3)
Conveyance sensor (PS1)
Exit sensor (PS9)
[1] Paper pass signal from the horizontal
transfer
[2] Moving to the 2nd folding position
34
Theory of operation Ver. 2.0 May 2008
[1] [2]
[3] Moving to the home position
[4] Moving to the 2nd folding position for the
subsequent paper
[3] [4]
A07TT2C030AA