Epson Stylus Photo R220 Service Manual page 33

EPSON Stylus Photo R220/R230
LED Indication
Error Status
STM3 Message
Defective Print
During operation
Quality
TROUBLESHOOTING
Table 1-25. Status and Possible Causes of Print Quality Problems
Occurrence
Phenomenon
Timing
Dot missing
No printing
Alignment failure
Mixing-up the different
types of inks
-
Vertical bands
Unit Level Troubleshooting
Faulty Unit/Part Name
Adherents on the Sealing Rubber.
Or the Sealing Rubber is damaged.
The Compression Spring, 2.53 under the cap comes off.
The Pump Tubes are disconnected from the bottom of the
Cap.
Ink System
The Extension Spring, 0.788 for the Slider Cap comes off.
The Extension Spring, 0.441 for the Slider Lock Lever
comes off.
The Slider Lever is damaged.
Ink Cartridges Remaining ink in the cartridge is low.
Main Board Main Board failure
Adherents are on the Print Head.
Print Head The Print Head is faulty.
The Head FFC is damaged.
CR Motor Accuracy of the CR Motor deteriorates.
the CR Guide Shaft is dirty or damaged.
Carriage Unit Lubrication is insufficient.
The Fixed Spring, CR Guide Shaft comes off.
The Frame EJ Assy. is deformed (Lower or Upper side
Frame EJ Assy.
warpage).
Print Head Nozzle pitches become misaligned.
Possible Causes
Revision A
Remedy
Refer to
Table 1-26
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