EPSON Stylus Photo R220/R230 Revision A
ADJUSTMENT Adjustment by using adjustment program 89
3.2.5  Bi-d Adjustment
[Adjustment Procedure]
1. Select Bi-D Adjustment in the Adjustment Program.
2. Click the [Print] button to print Bi-D Adjustment Pattern.
3. After selecting the pattern that has the smallest misalignment in each variable dot, 
click the [Go to input page] button in the Adjustment Program.
4. Click the [Input] button to write the adjustment value.
5. Click the [Go to print page] button.
[Treatment procedure for NG product]
1. Replace the Print Head with new one again.
2. Print the check pattern, and examine the printed pattern.
3. If the result is NG level, confirm the installation condition of removed parts during 
disassembly.
4. Perform Step2 again.
Figure 3-2. Bi-D Adjustment Pattern
C H E C K
P O I N T
For Bi-D Adjustment, the Adjustment Program 
automatically sets the PG (-) adjustment value based on the 
PG (Typ) adjustment value. 
OK pattern NG pattern
[Judging Standard]
- NO vertical lines in the block 
pattern.