Pw Sensor Adjustment; Head Angular Adjustment - Epson Stylus CX4900 Service Manual

EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050

5.2.9 PW Sensor Adjustment

Adjustment procedure
1. Set Photo Paper A4/Letter on the Paper Support.
2. Select "PW adjustment" in the Adjustment Program.
3. Click the [Print] button to print the PW adjustment pattern.
4. Check the printed patterns and select a pattern number that has 5mm margins
from the paper edges.
5. 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 Step 2 again.
Figure 5-3. PW adjustment Printing Pattern
ADJUSTMENT
[Judging Standard]
Top / Bottom / Right / Left: 5mm
Adjustment by Using Adjustment Program

5.2.10 Head Angular Adjustment

Adjustment procedure
1. Set Normal Paper A4/Letter on the Paper Support.
2. Select "Head angular adjustment" in the Adjustment Program.
3. Click the [Print] button to print the Band pattern and the Raster offset pattern.
4. Check the printed patterns and select a pattern number that has the least
amount of misalignment.
5. Click the [Input] button to write the adjustment value of checked items.
6. Print the check pattern again, and check the adjustment result.
[Treatment procedure for NG product]
1. Replace the Print Head 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 Step 2 again.
Band pattern
[Judging Standard]
The printed line should be straight line.
Raster offset pattern
[Judging Standard]
Spaces between the cyan lines and gray lines
should be uniformed.
Figure 5-4. Head Angular Adjustment Printing Pattern
Revision A
OK pattern NG pattern
OK pattern
NG pattern
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