Epson Stylus 820 Service Manual page 124

Stylus Color 1/s /Stylus 820
4.1.3 Head Angle Adjustment (Black and Color Head)
The head kmgle adjustment is required when the printer mechanism, main board, or printhead
(board) is replaced or disassembled. This adjustment calibrates the head drive timing between the
Note:
Use only a black head unit when you perform the head angle adjustment. Also, use only
a normal plain paper, because the type of black ink is using the slow penetration type.
1. Perform stem 1 to 5 in Section 4.1.1. Then you see the following menu:
Stylus Program * H90EOOE
Model : Stylus Color 11s
Customer : EAI$ EAI (Latin America), EAL, ESP, ETT
1. Ink discharge (Black)
2. Ink discharge (Color)
3. Head Angle Adjustment
4. Bi-D Adjustment (Bi-d Center -15)
5. A4 check pattern (Black)
6. A4 check pattern (Color)
7. Envelope
8. Index Card/ Post Card
O. Change Customer& Model/ END
13. BLACK Ink Counter Reset
14. COLOR Ink Counter Reset
Select Menu
2. Choose "Head Angle Adjustment" by typing 3 and
adjustment check pattern. If the head angle is correct you see the following angle adjustment
pattern.
Figure 4-2. Head Angle Pattern (Angle Correct)
3. If the angle adjustment is incorrect, you see a pattern similar to the one below. If this is the
case, go to step 4.
Figure 4-3. Head Angle Pattern (Angle Incorrect)
Rev. A
?
. Then the printer prints an angle
ENTER
Adjustments
4-5