Service manual

EPSON Stylus Photo R340/350 Revision A
Adjustment Adjustment by using adjustment program 105
3.2.1 How to judge print samples by using the adjustment
program
This section explains how to judge print samples by using the adjustment program.
Follow the instructions of the adjustment program for details of the adjustment
methods.
3.2.1.1 Head Angular Adjustment
The adjustment pattern is printed as shown below.
Figure 3-1. Head Angular Adjustment Pattern
 Selecting the best pattern
Select the straightest line among the -3 to +3 lines and enter the value of the
selected line.
 Supplement
If all the printed lines are straight and hard to select, reassemble or replace the
Print Head and print the pattern again.
3.2.1.2 Bi-d Adjustment
The adjustment pattern is printed as shown below.
Figure 3-2. Bi-D Adjustment Pattern (PG typ.: VSD1)
 Selecting the best pattern
Examine the printout patterns for each of the seven modes, and select the value for
the group of most neatly aligned blocks (without overlapping or gap between the
blocks) for each mode.
 PG typ.: VSD1/VSD2/VSD3/ECO
 PG -: VSD1/VSD2/VSD3
 Supplement
If none of the groups completely aligned, select the value for the most closely
aligned group for each mode, and print the patterns again.
C H E C K
P O I N T
OK and NG Lines
[No.11033][CT 3 0 0] C607A15W 08-26-2005 10:49
[EAI] 453146PRYS0VUL3 USB S/No:MIKA10508260941250
HEAD KATAMUKI
0-3 3
NGOK
Not straight
(displacement)
C H E C K
P O I N T
OK and NG Groups
VSD1 Dot Bi-D Adjustment BLACK
2
4
6 8 10 12 14
2
4
6101214
9
7
8
9
7
OK
NG NG
Gap