Epson Stylus Pro 3800 Service Manual page 84

Epson Stylus Pro 3800/3800C/3850/3880/3885/3890
Symptom
Vertical banding (overall) Bi-D and Uni-D adjustments have not been carried out properly.
The carriage unit cannot move smoothly.
Image is grainy The adjustments have not been carried out properly.
TROUBLE SHOOTING
Description
Remedies for Print Quality Troubles
Remedy
Carry out the Auto Bi-D and the Auto Uni-D adjustments.
See Chapter 5 "ADJUSTMENT".
Check the CR timing belt, and replace it if worn.
Check the CR motor is correctly installed.
Carry out the Print Head Slant Adjustment (PF).
See Chapter 5 "ADJUSTMENT".
Carry out the Print Head Slant Adjustment (CR).
See Chapter 5 "ADJUSTMENT".
Carry out the PF Adjustment.
See Chapter 5 "ADJUSTMENT".
Carry out the Auto Bi-D and the Auto Uni-D adjustments.
See Chapter 5 "ADJUSTMENT".
Carry out the PG Position Adjustment.
See Chapter 5 "ADJUSTMENT".
Revision C
84