DETAILS
SM 29 B660
Z-Folding Unit
B660
Sensors
No. Name Description
Sensor turns off the upper stopper motor.
S9 Upper Stopper Path
Sensor
Mounted below the upper stopper. 1) When the feeler of the upper
stopper path sensor detects the paper when the crease of the first
fold stops at the upper stopper, it delays long enough so the
1st/2nd feed rollers can continue to rotate and buckle the trailing
edge of the paper below at the nip of the 2nd/3rd feed rollers, then
the sensor switches off the 1st/2nd feed rollers and switches on
the 2nd/3rd feed roller pair. The 2nd/3rd feed rollers pull the
buckle into the nip and create the 2nd crease. 2) Detects the
paper when it leaves the upper stopper path and signals an error if
the paper does not leave at the prescribed time.
Solenoids
No. Name Description
SOL1
Junction Gate
Solenoid
Opens and closes the junction gate solenoid. When not
energized, the junction gate remains closed and paper passes
over the back of the closed junction gate and through the Z-
folding unit. When energized it opens the junction gate which
guides paper down and into the paper path of the Z-folding unit.
SOL2
Pinch Idle Roller
Solenoid
(Lower)
Attached to the pinch idle roller, this solenoid pushes the pinch
idle roller and closes the gap between the pinch idle/pinch feed
rollers when the fold timing sensor at the above the pinch idle
roller detects the trailing edge of the sheet so the rollers can
pinch and stop the paper in the paper path.
SOL3
Pinch Idle Roller
Solenoid
(Upper)
Attached to the pinch idle roller, this solenoid pulls the pinch idle
roller away from the pinch feed roller when the feed sensor at
the top of the Z-fold paper path detects the leading edge of the
sheet so the paper can drop between these opposing rollers.
Switches
No. Name Description
SW1
Breaker Opens and breaks the power circuit if the Z-folding unit
overheats.
Relays
No. Name Description
RA1
Relay Switch relay
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