Epson Stylus C50 Service Manual page 91

EPSON Stylus C50/C60/C61/C62
Occurrence
timing Detailed phenomenon
CR position
Vertical banding appears against the CR
movement direction. And, it looks like
uneven printing.
Micro banding appears horizontally
against the CR movement direction and
it appears with the same width.
CR movement
direction
Operation
-
[Note]
If the problem is not solved, replace the
PF motor with new one.
Star wheel mark against the CR
movement direction
Troubleshooting
Table 3-19. Check point for the poor printing quality
Defective
unit/part name
1. Check if the grease is enough on the surface of the
Front frame.
Front frame
2. Check if the surface of the Front frame is flat.
1. Check if each segment is printed correctly in the nozzle
check pattern.
Printhead
1. Check if there is any foreign material on the surface of the
PF roller.
PF roller unit
2. Check if the PF roller is damaged
3. Check if the Spur gear 60 is damaged.
1. Check if the suitable paper is used according to the printer
Printer driver &
driver setting.
exclusive paper
1. Check if each segment is printed correctly in the nozzle
check pattern.
Printhead
1. Check if the Star wheel comes off.
Front frame
2. Check if the surface of the Front frame is flat.
1. Check if the Paper eject roller comes off from the Lower
housing.
Paper eject roller
unit
Unit Level Troubleshooting
Check point
G-58 lubrication
Revision C
Remedy
1. Clean the surface of the Front frame with the
dry soft cloth and lubricate G-58 on its shaft.
Refer to Figure 6-6/Figure 6-7.
2. Replace the Front frame with new one.
1. Perform the printhead cleaning and check the
nozzle check pattern.
If the problem is not solved, replace the
printhead with new one.
1. Clean the surface of the PF roller carefully
with the soft cloth.
2. Replace the Printer mechanism with new one.
3. Replace the Printer mechanism with new one.
1. Use the suitable paper according to the printer
driver setting.
1. Perform the printhead cleaning and check the
nozzle check pattern.
If the problem is not solved, replace the
printhead with new one.
1. Reassemble the Star wheel correctly.
2. Replace the Front frame with new one.
1. Reassemble the Paper eject roller correctly.
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