Epson SEPG04002 3.4 Printing Quality-related Trouble

EPSON AcuLaser C1100 Revision B
TROUBLESHOOTING Printing Quality-related Trouble 242
3.4 Printing Quality-related Trouble
3.4.1 Printing-quality troubleshooting Entry Chart
Figure 3-4. Printing-quality troubleshooting Entry Chart
NOTE: The printing-quality troubleshooting described here is based on a
condition that the printer controller has no problems.
However, making a test print with only the engine side, allows you to find
out roughly which side (controller side or engine side) is causing the
trouble, except for cases that cannot be checked by the test print.
• Test print with the engine alone is normal
→ Printer controller trouble
• Test print on engine alone is abnormal
→ Printer engine trouble
If the probable cause is “printer controller trouble,” replace with a
normal printer controller and interface cable, and check.
If the trouble recurs after replacing with the normal parts, check on the
host side, and use the printer quality FIPs to perform efficient
troubleshooting.
To reliably judge and understand the details of trouble, and perform the correct remedy
efficiently when printing quality-related trouble occurs, make a test print, and use the
FIP tables corresponding to the phenomena.
When trouble cannot be restored by the printing quality-related FIP, check again using
the FIP, and then replace all parts indicated in the “ESS and possible parts that caused
the error” one by one to check the parts and perform troubleshooting.
The printing quality-related FIPs describe typical troubles as below.
FIP-P1 Printing is Faint (Weak Tones)
FIP-P2 Blank Print
FIP-P3 Solid Black Print
FIP-P4 Vertical White Bands or Lines
FIP-P5 Horizontal White Bands or Lines
FIP-P6 Vertical Black Lines
FIP-P7 Horizontal Black Lines
FIP-P8 Image is Partially Not Printed
FIP-P9 Toner Smudges
FIP-P10 Residual Image
FIP-P11 Dark or Dirty Background
FIP-P12 Skew Print
FIP-P13 Print Paper Damage
FIP-P14 Image Not Fixed
FIP-P15 Color Shift
FIP-P16 Uneven Density/Thin-Spot
FIP-P17 Entirely Faint
FIP-P18 Entirely Fogged in Black
FIP-P19 Entirely Thin
FIP-P20 Uneven Density in Horizontal Direction
Leg_Sec001_001FA
END
END
Trouble restored?
Perform the appropriate troubleshooting
START
Make a sample test print
Is there an applicable FIP?
No
Yes
No No
Yes Yes
Trouble restored?
Replace Photoconductor Unit and
FUSER ASSY in that order