SC-F2000 Revision C
TROUBLE SHOOTING Remedies for Print Quality Troubles 45
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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” (p237) and print
nozzle check pattern. Examine the printed pattern, and if any missing segment is found, perform the Print Head cleaning.
Table 2-2. Print Quality Troubles
Symptom Cause Check Item Remedy
The nozzles are still clogging after
cleaning.
The wiper is contaminated or wiping
the PRINT HEAD is not performed
properly.
1. Is the wiper contaminated?
2. Is the wiper cleaner damaged?
3. Check if the cloth wiper is taken up.
Replace the WIPER UNIT. (Page 70)
The Suction Cap and Cap (PUMP CAP
ASSY) are contaminated.
Is the Cap contaminated?
1. Clean the Suction Cap. (Page 291)
2. Replace the Cap (PUMP CAP ASSY). (Page
143)
There is a foreign material on the
PRINT HEAD.
Is there any foreign material on the PRINT HEAD? Remove the foreign material.
There is something wrong in the pump
tube and the cleaning (suctioning of
ink) is not performed properly.
Is the pump tube bent or getting caught between
surrounding parts or components?
Correct the routing of the pump tube, if necessary.
The ink is leaking. Is there any ink leakage observed in the ink flow paths? If any leakage is found, correct it.
There are some bubbles inside the ink
path.
Are there any bubbles observed in the ink flow paths? Run a head cleaning. (Page 238)
The HEAD FFC is not connected
correctly.
Is the HEAD FFC connected properly? Check for
abnormalities such as a ripped terminal cover or slant
connection.
1. Reconnect the HEAD FFC.
2. If the error persists, the HEAD FFC may be
broken. Replace the HEAD FFC. (Page 127)
If any of the remedies above does not help, replace the following parts one by one.
DAMPAR KIT. (Page 104)
PRINT HEAD. (Page 109)
MAIN BOARD (The fuse may have blown) (Page 95)
Horizontal or vertical lines look
misaligned.
The PRINT HEAD is not adjusted
properly.
Have the following adjustments been made properly?
ANGULAR ADJUST AND CHECK HORIZONTAL
(Head Inclination Adjustment)
ADJUST AND CHECK HEAD VERTICAL (Head
Slant Adjustment)
Carry out the adjustments if it is not adjusted
properly.
ANGULAR ADJUST AND CHECK
HORIZONTAL (Page 239)
ADJUST AND CHECK HEAD VERTICAL
(Page 243)
PG is not adjusted properly.
1. Is the height of Platen adjusted properly with the Height
Adjustment Lever?
2. Is Bi-D adjusted properly?
1. Perform the ADJUST PG. (Page 246)
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