Epson Stylus Pro 4400 Service Manual page 176

EPSON Stylus Pro 4400/4450/4800/4880/4880C
2. The product-life cycle is the same as CR Motor-life cycle, so check and
maintain all over the printer mechanism. Specially check points are
shown below.
Check for bending or damage to the Head FFC.
Check for damage to the CR timing belt and PF timing belt.
Check for abnormal noise when carriage unit moves (bearings are
worn).
Check for accumulation of paper dust or dust to paper feed route.
If there is paper dust or dirt, refer to
Items During Service Operations (p.450)
Refer to Chapter6 "Maintenance"
and lubricate them if they are dry.
3. Clear the CR Motor Life Counter.
Change" (p.442).)
Refer to Chapter 5 " Adjustment" (p.366)
C H E C K
P O I N T specified adjustments (including COUNTER CLEARS) after
replacing the "Motor Assy., CR."
Troubleshooting
6.1.2 Important Maintenance
and carry out a cleaning.
(p.448), check the lubrication points,
(Refer to "5.6.4 Reset When CR Unit
and perform
Troubleshooting Based on Panel Messages
Revision C
176