Epson ME100, Service Manual

Page: 69 / 135

EPSON Stylus CX1500/ME100 Revision A
TROUBLESHOOTING Troubleshooting 69
• White streak/
color unevenness
occurrence
Vertical banding appears against the CR
movement direction. And, it looks like
uneven printing.
[Note]
If the problem is not solved, replace the
CR Motor with a new one.
Adjustment
1. For printing in the Bi-D mode, check if Bi-D Adjustment
has been performed properly.
1. Perform Bi-D Adjustment to eliminate
displacements between the upper and lower
rules. (Refer to Chapter 5 "ADJUSTMENT".)
Print Head
1. Check if each segment is printed correctly in the Nozzle
Check Pattern.
1. Perform Head Cleaning and check the Nozzle
Check Pattern. (Refer to Chapter 5
“ADJUSTMENT”.)
If the problem is not solved, replace the Print
Head with a new one.
Carriage Unit /
Main Frame
1. Check if there is not any foreign material on the surface
of the CR Guide Rail.
1. Remove foreign objects from surface of the
CR Guide Rail.
2. Check if the grease is enough on the surface of the CR
Guide Rail.
2. After wiping the grease on the CR Guide Rail
and the Carriage with a dry, soft cloth, coat it
with grease (G-58). (Refer to Chapter 6
“MAINTENANCE”.)
Front Frame
1. Check if there is not any foreign material on the surface
of the Front Frame.
1. Remove foreign matter from the Front Frame.
2. Check if the Front Frame is lubricated with enough
grease.
2. After wiping the grease on the Front Frame
with a dry, soft cloth, coat it with grease (G-
58). (Refer to Chapter 6
“MAINTENANCE”.)
3. Check if the Front Frame has not been deformed. 3. Replace the Front Frame with a new one.
Table 3-13. Check point for the poor printing quality
Print Quality
State
Detailed phenomenon
Defective
unit/part name
Check point Remedy
CR movement
direction