Epson Stylus NX105 Service Manual page 50

Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300
Print Quality State Detailed phenomenon
Micro banding appears horizontally
against the CR movement direction and
it appears with the same width.
CR movement
direction
[Note]
If the problem is not solved, replace the
PF Motor with a new one.
• White streak / color
unevenness
occurrence
The Star wheel mark against the CR
movement direction.
Printing is blurred.
TROUBLESHOOTING
Table 3-12. Check point for the defective printing quality
Defective
unit/part name
Printer driver & 1. Check if the suitable paper is used according to the printer
exclusive paper driver setting.
1. Check if the Nozzle Check Pattern is printed correctly.
Printhead
1. Check if there is foreign material on the surface of the PF
Roller Assy.
PF Roller Assy
2. Check if the PF Roller Assy is damaged.
1. Check if the Wheel Star Metal and Spring Star Wheel
does not come off.
2. Check if the surface of the EJ Frame Assy is flat.
EJ Frame Assy
Printer driver & 1. Check if the suitable paper is used according to the printer
exclusive paper driver setting.
1. Check if the correct Head ID is stored into the EEPROM
Printhead
by using the Adjustment Program.
Error Indications and Fault Occurrence Causes
Check point
1. Use the suitable paper according to the printer
1. Perform the Head Cleaning and check the
1. Clean the surface of the PF Roller Assy
PF Roller Assy
2. Replace the PF Roller Assy with a new one.
1. Reassemble the Wheel Star Metal and Spring
2. Replace the EJ Frame Assy with a new one.
1. Use the suitable paper according to the printer
1. Input 11-digit code of the Head ID into the
Revision A
Remedy
driver setting.
Nozzle Check Pattern. (Refer to Chapter 5
"ADJUSTMENT" (p.100).)
If the problem is not solved, replace the
Printhead with a new one.
carefully with the soft cloth.
Star Wheel correctly.
driver setting.
EEPROM by using the Adjustment Program.
Confidential
50