Epson ACULASER COLOR 1000, Service Manual

Page: 135 / 230

EPSON AcuLaser C2000 / AcuLaser C1000 Revision E
Troubleshooting Image Quality Troubleshooting 135
3.3 Image Quality Troubleshooting
This section describes how to identify, based on the printing result, the location
developing the error.
Table 3-10. Image Quality Troubleshooting
Abnormal
Image
Cause Step Solution
No image
(all white) OHP is selected and
plain paper is loaded.
(white paper eject mode) 1 Configure the paper load device
and paper type by driver.
• Bias contact failure
(toner cartridge)
• Contact failure
(transfer roller)
1
• Re-install the toner cartridge.
• If it occurs for one color,
replace the color toner
cartridge.
• Re-install the transfer roller
unit.
• Connector contract
failure (P/H)
• Data output failure
2
• remove P/H connector PJ12A
and insert it again.
• Replace the print head.
3 Replace the HV1 (high voltage
board).
All black
• Bias setting failure
(photoconductor)
• Charging failure
(photoconductor)
1 Replace the photoconductor.
2 Replace HV1 (high voltage)
board.
White out /
Black point Foreign objects on the
toner cartridge. 1 Replace the toner cartridge.
Foreign objects on the
photoconductor. 2 Replace the photoconductor.
Foreign objects on the
transfer belt. 3
• Clean the transfer belt.
• Replace the transfer belt unit.
Foreign objects on the
transfer belt. 4
• Clean the fusing belt.
• Replace the oil coating roller.
• Replace the fusing unit.
Back of paper
gets dirty Paper path is dirty. 1
• Clean the paper path.
• Replace the toner cartridge.
Transfer roller is dirty. 2 Replace the transfer roller unit.
Fusing pressure roller is
dirty. 3
• Clean the pressure roller.
• Replace the oil coating roller.
Image is
overlapping
• Foreign object on the
developer.
• Used toner low
consumption mode
too much.
1 Replace the toner cartridge.
High density 2
• Replace the photoconductor.
• Replace HV1 (high voltage
board).
Table 3-10. Image Quality Troubleshooting (continued)
Abnormal
Image
Cause Step Solution