Epson Stylus Photo R1800 Service Manual page 63

EPSON Stylus Photo R1800/R2400
Observed Faults Details of the Fault
Vertical or When printing at 360 dpi,
horizontal banding / horizontal banding and color
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 appear on the printed paper
the printout. or CD-R.
Troubleshooting
Table 3-13. 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
Assy. Star Wheel Rollers turns normally.
Star Wheel Rollers
Printer Driver 1. Check that adequate paper is used according to the setting
and the Paper of the 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 1. Check if appropriate paper is used in accordance with the
and the Paper Printer 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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