Service manual

EPSON Stylus Photo R320 Revision B
TROUBLESHOOTING Unit Level Troubleshooting 28
At operation
-
Striped pattern appears in a direction
perpendicular to "Carriage Unit"
movement.
Frame EJ Assy.
1. Check if the surface of "Frame EJ Assy." is precisely
horizontal.
1. Replace "Frame EJ Assy." with a new one.
Print Head
1. Check if "Print Head" prints correctly with the Nozzle
Check Pattern.
1. Perform the Head Cleaning, then check the
Nozzle Check Pattern.
* If the problem is not solved, replace "Print
Head" with a new one.
Striped pattern appears in a direction
horizontally to "Carriage Unit"
movement.
(Note)
If the problem is not solved, replace "PF
Motor" with a new one.
PF Roller
1. Check if there is any foreign matter on the surface of "PF
Roller".
2. Check if "PF Roller" is damaged.
3. Check if "Spur Gear, 37.242" is damaged or broken.
1. Clean the surface of "PF Roller".
2. Replace "Printer Mechanism" with a new
one.
3. Replace "Printer Mechanism" with a new
one.
Printer Driver and
Special Paper
1. Check if appropriate paper is used in accordance with the
Printer Driver settings.
1. Use the appropriate type of paper in
accordance with the Printer Driver.
Print Head
1. Check if "Print Head" prints correctly with the Nozzle
Check Pattern.
1. Perform the Head Cleaning, then check the
Nozzle Check Pattern.
* If the problem is not solved, replace "Print
Head" with a new one.
Irregular lines appear in a direction
horizontally to "Carriage Unit"
movement.
These lines appear when the print paths
overlap each other.
Paper Guide, Front
1. Check if "Porous pad" in front of "Paper Guide, Front"
has not come off.
1. Reattach "Porous pad".
Table 1-14. Check Points for Defective Print Quality
Occurrence Timing
Position of CR
Phenomenon Detail
Faulty Part/
Part Name
Check Point Remedy
Direction of
CR movement