SERVICE CALL CONDITIONS
SM
4-89
B234/B235/B236/D101/D102/D103
T
ro
u
b
le
-
s
h
o
o
ti
n
g
Signature Registration Sensor Lag Error
SC797-41
B
The signature registration sensor
went ON at warm-up after power on.
-or-
When the signature exited and the lift
tray lowered, the sensor went ON.
•
Detected a jammed book at
power on.
•
Motor or sensor harness loose,
broken, defective
Book Arrival Sensor (S76)
SC797-42
B
After the book output operation
ended, the book arrival sensor
remained ON because the book
failed to move from the buffer tray
to the output tray.
•
Trimmings buffer motor (M37)
defective
•
Book arrival sensor (S76) defective
•
Motor or sensor harness loose,
broken, defective
Trimming Jam Scrap Error
The strips cut from the book could not be dumped into the trimmings box or
the strips jammed between the trimmings buffer and edge press plate and
trimming stopped. Three attempts failed to restore operation, then the jam
alert was issued.
•
Strips jammed between the edge press plate and trimmings buffer.
•
Trimmings buffer motor (M37) defective
•
Trimmings buffer HP sensors: right or left (S100, S103) defective
•
Motor or sensor harness loose, broken, defective
SC797-43
B
Note
: Trimming strips wider that 29 mm at the bottom and top edges (1st
and 2nd cuts) and wider than 41 mm at the fore edge (3rd cut) will cause
the trimming unit to jam.
Sub Grip Signature Sensor (S39)Lag Error
SC797-44
B
The sub grip signature sensor did
not go OFF after the sub grippers
released the signature to the main
grip because the signature did not
move.
•
Signature jammed in sub grip unit
•
Sub grip signature sensor
defective
•
Sensor connector loose, broken,
defective
Main Grip Signature Sensor (S55) Lag Jam
SC797-45
B
The main grip signature
sensor did not go OFF after
the main grippers released
the signature to the
trimming unit because the
book did not move.
•
Book jammed in main grip unit
•
Main grip signature sensor (S55) defective
•
Sensor connector loose, broken, defective
Signature Thickness Sensor (S50) Error
SC797-46
B
The size of the signature
measured by the signature
thickness sensor was
smaller than the minimum.
•
Signature thickness sensor (S50)
defective
•
Sensor connector loose, broken, defective
Glue Vat Roller Rotation Error
SC797-47
B
The glue vat roller sensor
did not detect any rotation at
the glue vat roller within the
prescribed time after the
glue vat roller motor turned
on.
•
Glue vat roller motor (M25) defective
•
Glue vat roller rotation sensor (S59)
defective
•
Motor or sensor connector loose, broken,
defective
