Epson Stylus Photo 1390 Service Manual page 66

EPSON Stylus Photo 1390/1400/1410
Observed Faults Details of the Fault
Vertical or horizontal When printing at 360 dpi,
banding / Color horizontal banding and color
shading unevenness appears at a constant
frequency.
Star Wheel Rollers traces appear
in the CR moving direction.
Printout is faint or blurry.
The bottom of the printout is not
evenly colored.
Paper EJ Roller Traces of the Paper EJ Roller
traces appear on the appear on the printed paper or
printout. CD-R*.
TROUBLESHOOTING
Table 3-12. Print Quality Troubles
Faulty Part/
Part Name
Adjustment 1. Check that PF Adjustment has executed properly.
2. Check for Dot missing.
Paper EJ Frame 1. Check that the Star Wheel Units have not come off or the Star
Assy. Wheel Rollers turns normally.
Star Wheel Rollers
Printer Driver and 1. Check that adequate paper is used according to the setting of the
the Paper Printer Driver.
Print Head 1. Using the Adjustment Program, check that the correct Head ID has
been written to the EEPROM.
Adjustment 1. Check if the Positioning Adjustment of PF Roller Shaft Retainer
has been performed properly.
Printer Driver and 1. Check if appropriate paper is used in accordance with the Printer
the Paper Driver settings.
Front and Rear 1. Check if the Paper EJ Roller is clean or not.
Paper EJ Roller
Assys.
Overview
Check Point
Star Wheel Units
Revision B
Remedy
1. Perform PF Adjustment properly.
Refer to Chapter 5 "ADJUSTMENT".
2. Replace the Ink System Unit with a new one.
1. Install the Star Wheel Units to the Paper EJ
Frame Assy correctly.
1. Use the appropriate type of paper in accordance
with the Printer Driver.
1. Using the Adjustment Program, enter the 31-
digit code of the Head ID to the EEPROM.
Refer to Chapter 5 "ADJUSTMENT".
1. Make adjustments according to the specified
adjustment priority.
Refer to Chapter 5 "ADJUSTMENT".
1. Use the appropriate type of paper in accordance
with the Printer Driver.
1. Clean the Paper EJ Roller using the Roller
Cleaning Mode.
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