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Epson Stylus Photo R340 Service Manual: How To Judge Print Samples By Using The Adjustment Program; Head Angular Adjustment; Bi-d Adjustment

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EPSON Stylus Photo R340/350
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.
[No.11033][CT 3 0 0] C607A15W 08-26-2005 10:49
[EAI] 453146PRYS0VUL3 USB S/No:MIKA10508260941250
HEAD KATAMUKI
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.
C H E C K
OK and NG Lines
P O I N T
Adjustment
-3
0
3
Not straight
(displacement)
OK
NG
Adjustment by using adjustment program

3.2.1.2 Bi-d Adjustment

The adjustment pattern is printed as shown below.
VSD1 Dot Bi-D Adjustment BLACK
2
4
6
2
4
6
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
OK and NG Groups
P O I N T
NG
Revision A
7
8
10
12
14
9
7
8
10
12
14
9
Gap
OK
NG
105

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