SERVICE CALL CONDITIONS
SM 4-83 B234/B235/B236/D101/D102/D103
Trouble-
shooting
Failure to Detect Book Press Plate Position SC797-6 B
The book press plate sensor (S104) did
not go OFF because the trimmings buffer
left the HP sensor position.
-or-
The book press plate sensor (S104) did
not go ON because the trimmings buffer
did not arrive at the HP sensor position.
• Trimming scraps jammed in
or around the trimmings
buffer
• Trimmings buffer motor
(M37) defective
• Book press plate sensor
(S104) defective
• Sensor or motor harness
loose, broken, defective
Book Buffer Tray HP Sensor (S78) Error
SC797-7 B
The HP sensor did not go OFF within the
prescribed time after the buffer tray the
book buffer tray motor turned on to pull
the tray to the rear.
-or-
The HP sensor did not go ON within the
prescribed time after the book buffer tray
motor turned on to push the tray to the
front.
• Book has jammed on the rail of
the buffer
• Buffer tray overloaded
• Book buffer tray motor (M39)
defective
• Book buffer tray HP sensor
(S78) defective
• Motor or sensor connection
loose, broken, defective
Edge Press Plate HP Sensor (S90)
SC797-8 B
The edge press plate did not go OFF
within the prescribed time after the edge
press plate motor turned on to press the
plate against the spine of the book.
-or-
The edge press plate did not go ON
within the prescribed time after the edge
press plate motor turned on to pull the
plate away the spine of the book.
• Edge press plate motor (M36)
defective
• Edge press plate HP sensor
(S90) defective
• Motor or sensor connection
loose, broken, defective
Press end Sensor (S87) Error
SC797-9 B
The press end HP sensor did
not go OFF within the time
prescribed for press END.
-or-
Press end sensor went OFF
after press end sensor went
ON and stopped the press
motor (M36).
• Edge press plate motor (M36) defective
• Press end sensor (S87) defective
• Data received for signature data was
incorrect because signature thickness
sensor (S50) defective
• Motor or sensor harness loose, broken,
defective
Slide HP Sensor (S82) Error
SC797-10 B
The HP sensor did not go OFF within the
prescribed time because the slide motor
did not leave the home position.
-or-
The HP sensor did not go ON within the
prescribed time because the slide motor
did not arrive at the home position.
• Signature jam, overload
• Slide motor (M44) defective
• Slide HP sensor (S82)
defective
• Motor or sensor harness
loose, broken, defective