Epson R320 - Stylus Photo Color Inkjet Printer, Service Manual

Page: 90 / 114

EPSON Stylus Photo R320 Revision B
ADJUSTMENT Adjustment by using adjustment program 90
3.2.6 PW Sensor Adjustment
[Adjustment Procedure]
1. Select PW Sensor Adjustment in the Adjustment Program.
2. Click the [Print] button to print PW Sensor Adjustment Pattern.
3. Select the pattern number 5mm away from each edge.
4. Click the [Input] button to write the adjustment value of checked items.
[Treatment procedure for NG product]
1. Replace the PW sensor with new one again.
2. Print the check pattern, and check the adjustment result.
3. If the result is NG level, confirm the installation condition of removed parts during
disassembly.
4. Perform step2) again.
Figure 3-3. PW Sensor Adjustment Pattern
3.2.7 First Dot Adjustment
[Adjustment Procedure]
1. Select First Dot Adjustment in the Adjustment Program.
2. Click the [Print] button to print First Dot Adjustment Pattern.
3. Determine the adjustment value in the shifting direction for the pattern printed on
the left margin. Input can be made in 0.0176mm increments for the adjustment
value of 1.
4. Click the [input] button and write the adjustment value.
[Treatment procedure for NG product]
1. Replace the repaired (replaced) part with new one.
2. Print the check pattern, and check the adjustment result.
3. If the result is NG level, confirm the installation condition of removed parts during
disassembly.
Figure 3-4. First Dot Adjustment
[Judging Standard]
- Top / Bottom: 3.7 to 6.0mm
- Right / Left : 4.0 to 5.5mm
[Judging Standard]
- Standard: 3 ± 1.0mm away from left edge.