EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C
TROUBLESHOOTING Error Indications and Fault Occurrence Causes 87
Confidential
• White streak / color
unevenness
occurrence
Micro banding appears horizontally
against the CR movement direction and
it appears with the same width.
[Note]
If the problem is not solved, replace the
PF Motor with a new one.
Printer driver &
exclusive paper
1. Check if the suitable paper is used according to the printer
driver setting.
1. Use the suitable paper according to the printer
driver setting.
Printhead
1. Check if the Nozzle Check Pattern is printed correctly. 1. Perform the Head Cleaning and check the
Nozzle Check Pattern. (Refer to
Chapter 5
“ADJUSTMENT” (p.141).)
If the problem is not solved, replace the
Printhead with a new one.
PF Roller Unit
1. Check if there is not any foreign material on the surface
of the PF Roller Unit.
1. Clean the surface of the PF Roller Unit
carefully with the soft cloth.
2. Check if the PF Roller Unit is not damaged. 2. Replace the PF Roller Unit with a new one.
The Star wheel mark against the CR
movement direction.
Star Wheel Holder
Assy
1. Check if the Star Wheel Holder does not come off. 1. Reassemble the Star Wheel Holder correctly.
2. Check if the surface of the Star Wheel Holder Assy is flat. 2. Replace the Star Wheel Holder Assy with a new
one.
Printing is blurred.
Printer driver &
exclusive paper
1. Check if the suitable paper is used according to the printer
driver setting.
1. Use the suitable paper according to the printer
driver setting.
Printhead
1. Check if the correct Head ID is stored into the EEPROM
by using the Adjustment Program.
1. Input 16-digit code of the Head ID into the
EEPROM by using the Adjustment Program.
Table 3-22. Check point for the defective printing quality
Print Quality State Detailed phenomenon
Defective
unit/part name
Check point Remedy
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