Improper LED exposure
• Replace the LED Print Head Unit.
• Replace the Main Control PCB.
Improper charging
• Replace the High Voltage Unit.
• Replace the Main Control PCB.
4.11.3 Printout too light
Symptom: Printed image is faint or does not print solid.
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Poor development
• Remove the toner cartridge and shake it a few times to redistribute the toner inside. If the problem
persists, replace the toner cartridge.
• Replace the High Voltage Unit.
• Clean the LED print head.
Defective Drum
• Replace the Drum Cartridge.
Poor image transfer
• Replace the Image Transfer Unit.
• Replace the High Voltage Unit.
• Replace the Main Control PCB.
4.11.4 Printout too dark
Symptom: Printed image is faint or does not print solid.
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Poor development
• Remove the toner cartridge and shake it a few times to redistribute the toner inside. If the problem
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