Epson DFX-9000 - Smudges on Paper; Light Print;Characters Have Uneven Upper or Lower Edges

Epson DFX-9000 Field Repair Guide 3/29/07
Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 136.
Smudges on paper
Action:
1. Verify that the Ribbon Cartridge is correctly installed.
2. Check that the ribbon is in good condition (no excessive wear, is not frayed, or has unravelled).
3. Clean the Print Head so that it is free of ink or ribbon dust.
4. If printing on forms or paper of uneven thickness, use SelecType to disable Automatic Platen Gap and set to
Manual Platen Gap.
NOTE: The following adjustments affect the platen gap: the Card Guide Mount Position Adjustment, the
APTC Thickness Detection Adjustment, and the APTC Detection Adjustment.
5. If you print on Overlapping Multipart Forms, use SelecType on the Control Panel to change that setting to “On”.
6. Check, and if necessary, replace the APTC Unit.
Light Print/Characters have uneven upper or lower edges
Action:
1. Replace the Ribbon Cartridge if it appears to be worn out.
2. Use SelecType to disable Automatic Platen Gap and set to Manual Platen Gap.
NOTE: The following adjustments affect the platen gap: the Card Guide Mount Position Adjustment, the
APTC Thickness Detection Adjustment, and the APTC Detection Adjustment.
3. Replace the APTC Unit.
4. Replace the Print Head.
5. Replace the ROM Board.