Gestetner B147 Service Manual page 216

SC TABLE
SC No. Item
SC 195 Serial Number • Serial number stored in the
Mismatch
SC 201 Polygon motor • The polygon mirror motor
error
• The lock signal does not
• The lock signal does not
B147/B149/B190
Definition
• NVRAM defective
memory does not consist of • BCU replaced without
the correct code.
• Incorrect DIP-switch
• Polygon mirror motor
does not reach the targeted
operating speed within 10 • Abnormal GAVD
seconds after turning on.
• Cable disconnection
become high within 10
seconds after turning off the
polygon motor.
become low within 0.2
second after the polygon
motor reaches the targeted
operating speed.
Related
Possible Cause
SCs
original NVRAM
setting
error
behavior
4-14
Troubleshooting Procedure
Open the front cover and turn on the
main switch. Check the serial number
with SP5-811-002.
If the stored serial number is incorrect,
contact your product specialist for
details of how to solve the problem.
For DIP-switch settings, see section
5.10.
1. Turn the main switch off and on.
2. Check the cables.
3. Replace the polygon motor.
Type
D
D
SM