Remedies For Print Quality Troubles - Epson SC-F9200 Series Service Manual

SC-F9200 Series

2.4 Remedies for Print Quality Troubles

This section provides troubleshooting of print quality troubles classifying them by observed symptom. Before performing troubleshooting, refer to
nozzle check pattern. Examine the printed pattern, and if any missing segment is found, perform the Print Head cleaning.
Symptom
The nozzles are still clogging after
cleaning.
Horizontal or vertical lines look
misaligned.
TROUBLE SHOOTING
Table 2-5. Print Quality Troubles
Cause
The Wiper is contaminated and wiping
1. Is the Wiper or Wiper Cleaner contaminated?
the Print Head cannot be performed
2. Is the Wiper or Wiper Cleaner damaged?
properly.
The Head Cap is contaminated. Is the Cap contaminated?
There is some foreign material on the
Is there any foreign materials on the Print Head?
Print Head.
There is something wrong in the pump
Is the pump tube being bent or getting caught between
tube and the cleaning (suctioning of
surrounding parts or components?
ink) cannot be performed properly.
The ink is leaking. Is there any ink leakage observed on the ink flow paths?
There is air inside the ink path. Is there any air bubbles observed in the ink flow paths?
Is the Head FFC connected properly without being
The Head FFC is not connected
connected at an angle and any abnormalities such as ripped
correctly.
terminal cover?
If any of the remedies above does not help, replace the following parts one by one.
 (Page 144)
Print Head

Main Board (The fuse may have blown)
Have the following adjustments been made properly?
The Print Head has not been adjusted

properly.

1. Is the paper thickness setting correct?
Improper PG adjustment
2. Has the PG adjustment been made properly?
Remedies for Print Quality Troubles
Check Item
(Page 123)
CR Direction Head Slant Adjustment
PF Direction Head Slant Adjustment
"Nozzle Check" (p311)
Remedy
(Page 375)
1. Clean the Wiper.
2. Replace the Wiper (Page 100) and Wiper
(Page 100)
Cleaner .
1. Clean the Cap. (Page 375)
2. Replace the Cap (Pump Cap Unit).
177)
(Page 375)
Clean the Print Head.
Route the pump tube correctly.
If any leakage is found correct it.
(Page 313)
Run a head cleaning.
1. Reconnect the Head FFC.
2. If the trouble still occurs, the cause may be
breaking of the Head FFC. Replace the Head
(Page 150)
FFC.
Carry out the adjustments correctly.

CR Direction Head Slant Adjustment
314)

PF Direction Head Slant Adjustment
319)
1. Correct the paper thickness setting.
(Page 306)
2. Perform the PG adjustment.
SE Group Confidential (Related Staff Only)
Revision C
and print
(Page 170,
(Page
(Page
62