
Troubleshooting8-6
LED or LCD
The printer is not functioning properly when the key panel LED has no lights (red or
green) or when the LCD has no display or wrong display.
Possible Hardware Causes
Bad Key Panel PCA or LCD PCA
Bad PCA
Wiring or connectors faulty or loose
Both LEDs (red and green) blink at a very fast speed if there is a mechanism error or bad
PCA. Verify the problem by powering off the printer and us
Parts Required for Repair
Key Panel PCA or LCD PCA
PCA
Mechanism
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