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Printer Message Troubleshooting
Procedures
When the following procedures require removing and replacing
an assembly or PCA, refer to the applicable section in Chapter 6
for instructions.
Blank Display
Checks Action
Is the power on? 1.
2.
Check the ON/OFF switch and verify the power is
plugged in.
Press a Control Panel key to verify problem still
exists.
Is the fan working? 1.
2.
If the fan is working, check the cabling to the
Control Panel. If the cabling is good, replace the
Formatter first, then the Control Panel.
If the fan is NOT working, measure the DC
voltage levels (refer to Table 7-39). If the voltage
levels are good from the power supply to the DC
Controller and the fan is not working, replace the
DC Controller. If the voltage levels are not present
at TB1, replace the DC Power Supply.
Table 7-3 Blank Display
7-12 Troubleshooting