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EPSON Stylus Photo R340/350
Problems
Description
• White bands/
Vertical bands (perpendicular to the CR
Color
moving direction) appear on printouts
unevenness
with inconsistencies in density.
CR Moving
Direction
(Note)
If the problem still occurs after the all
actions to remedy it have taken, replace
the CR Motor with a new one.
Horizontal bands (horizontal to the CR
moving direction) appear on printouts.
CR Moving
Direction
(Note)
If the problem still occurs after the all
actions to remedy it have taken, replace
the PF Motor with a new one.
Troubleshooting
Table 1-14. Print Quality Problems (continued)
Failed Part
Print Head
1. Print a nozzle check pattern and examine the printout
patterns for any missing segments or broken lines.
Adjustment
1. If the problem occurs in the Bi-D mode, verify that the
Bi-D adjustment is made properly.
Carriage Unit/
1. Check the CR Guide Shaft surface for any foreign
CR Guide Shaft
matters.
2. Check if the CR Guide Shaft is properly secured to the
Main Frame with the CR Shaft Fixing Spring.
3. Check if the CR Guide Shaft surface is properly
lubricated.
4. Check the CR Guide Shaft surface for any damages.
EJ Frame Assy.
1. Check if the EJ Frame Assy. surface stays in a horizontal
position.
Print Head
1. Print a nozzle check pattern and examine the printout
patterns for any missing segments or broken lines.
Printer driver and
1. Check if appropriate type of paper is used in accordance
Special paper
with the printer driver setting.
PF Roller Assy.
1. Check the PF Roller surface for any foreign matters.
2. Check if the PF Roller Assy. is damaged.
Troubleshooting
Check Point
1. Run a head cleaning and then print a nozzle
1. Perform the Bi-D adjustment to align the bi-
1. Remove the foreign matters on the surface of
2. Install the CR Guide Shaft correctly.
3. Wipe off the remaining oil on the CR Guide
4. Replace the CR Guide Shaft with a new one.
1. Replace the EJ Frame Assy. with a new one.
1. Run a head cleaning and then print a nozzle
1. Use an appropriate type of paper in
1. Clean the surface of the PF Roller properly
PF Roller Assy.
2. Replace the PF Roller Assy. with a new one.
Revision A
Remedies
check pattern again. (See Chapter 3 for
details on the adjustments) If the problem still
occurs, replace the Print Head with a new
one.
directional print positions. (See Chapter 3 for
details on the adjustments)
the CR Guide Shaft.
Shaft with a dry soft cloth, and re-lubricate
the shaft with G-63 oil. (See Chapter 4 for
details on the lubrication)
check pattern again. (See Chapter 3 for
details on the adjustments) If the problem still
occurs, replace the Print Head with a new
one.
accordance with the printer driver setting.
with a soft cloth.
33

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