Blurred Background; Uneven Print Density - Muratec MFX-2050 Field Engineering Manual

4.12.5 Blurred background

Symptom: Copies show a gray or dark background.
Poor development
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE

4.12.6 Uneven print density

Symptom: Image graduates from dark to light across page.
Poor development
A B CDE
A B CDE
B CDE
A
B CDE
A
B CDE
A
Defective Drum
Poor image transfer
• Replace the High Voltage Unit.
• Replace the Main Control PCB.
• Replace the Toner Cartridge.
• Replace the Drum Cartridge.
• The drum cartridge or toner cartridge may be not installed correctly. Install
each cartridge correctly.
• Replace the Toner cartridge
• Replace the High Voltage Unit.
• Clean the LED print head.
• If the drum surface for moisture condensation found, leave drum in unit with
power on to dry.
• Replace the Drum Cartridge.
• Replace the Image Transfer Unit.
• Replace the High Voltage Unit.
• Replace the Main Control PCB.
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