Pw Adjustment/First Dot Position Adjustment - Epson L800 Service Manual

L800/L801

2.2.4 PW Adjustment/First Dot Position Adjustment

Patterns are printed as shown below.
5 mm
-5 -4 -3 -2 -1 0 1 2 3
-8
-7
-6
-5
-4
-3
-2
-1
0
1
Area where A and B overlap
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
A: PW adjustment pattern line (left)
B: First dot position adjustment pattern line
15 14 13 12 11 10 9 8 7
Figure 2-5. PW/First Dot Position Adjustment Pattern
Adjustment
4 5 6 7 8 9 10 11 12 13 14 15
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
6 5 4 3 2 1 0 -1 -2 -3 -4
Using the Adjustment Program
PW adjustment
How to Judge
Enter the value for the line that is exactly 5mm away from the paper edge for
each of the left, right, top and bottom.
Example: In the left figure, enter "0" (top), "0" (right), "5" (bottom) and "-3"
(left).
First dot position adjustment
How to Judge
Enter the value for the point where the PW adjustment pattern line and the First
dot position adjustment pattern line overlap on the left of the paper.
Example: In the left figure, enter "2" since the lines overlap at "2" position.
-5
Revision A
79
Confidential