Print Quality Anomaly - Epson ActionLaser 1300 EPL-3000 Service Manual

Print Quality Anomaly

5.3.2
This section describes how to isolate a print quality problem from the possible causes.
Possible Cause
Symptom
Poor development
Improper charging
Image transfer
problem
Paper problem
Defective optical
unit
Improper print
density setting
Foggy
background
Poor development
—
Improper charging
Improper print
density setting
Defective optical
unit
Rev. A
Table 5-15. Print Quality Anomaly
Part Name
Imaging
Imaging
cartridge
Image transfer surface of image
roller
Paper
Optical unit
—
Imaging
charge
Drum
—
Optical unit
Check Item
Check the toner level
in the imaging
cartridge.
—
—
—
Check to see if the
transfer roller is
damaged.
—
Check to see if PPer
is moist.
—
—
—
Check the wiring of
developing bias line.
—
Check the wiring of
PC drum charging
bias line.
—
—
Troubleshooting
Remedy
Shake the imaging
cartridge.
Replace the imaging
cartridge.
Replace the PWB-F
board.
Replace the imaging
cartridge.
Replace the PWB-F
board.
Replace the image
transfer roller.
Replace the PWB-F
board.
Replace the optical
unit.
Adjust the print density
Replace the imaging
cartridge.
Replace the PWB-F
board.
Replace the PWB-F
board.
Replace the imaging
cartridge.
Adjust the print density
Replace the optical
unit.