Head Angular Adjustment - Epson Stylus Photo 720 Service Manual

EPSON Stylus Photo 720 / EPSON Stylus Photo EX3

5.3.6 Head Angular Adjustment

During production, slight variations are created in the printhead and carriage (which is
used as a printhead base). If these differences are not adjusted, they would adversely
influence the printhead angle, resulting in poor print quality.
To perform head angular adjustment, adjust the head angle against the horizontal
direction by the adjustment lever, and after adjustment is made, check the adjustment
value by printing the special pattern print. The following is the adjustment procedure.
Perform this adjustment when the following repair / service is
n
C H E C K
made.
P O I N T
Replacing or removing the Head
n
Removing the Head Angular Lever
n
Perform the adjustment items described in Table 5-1 according
n
to the replacement parts in the specified order.
When performing this adjustment, use of super fine paper is
n
recommended.
Adjustment
1. Select "Head angular adjustment" from the adjustment program main menu. The
following screen appears.
2. Select "Print the head angular adjustment pattern" and click "OK". The following
pattern will be printed.
H e a d A n g u l a r A d j u s t m e n t P a t t e r n ( B K - M ) L M )
Adjustment by Adjustment Program
Figure 5-13. Head Angular Adjustment
Figure 5-14. Head Angular Adjustment Pattern
Revision A
103