Led or lcd – HP 2500C Series User Manual
Page 206
Troubleshooting
8-6
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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