EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments
136
5.2.2.10 Bi-D Adjustment
The bi-directional ad
ustment enables
ou to chan
e a timin
value that
controls vertical ali
nment of the printed output in the bidirectional print
mode. You must perform this ad
ustment after:

Replacin
the printer mechanism

Replacin
the main board

Replacin
the CR motor

Removin
or replacin
the printhead

Removin
or replacin
the carria
e unit
1.
Enter the main menu
see Section 5.2.2.3
. Then select
Adjustment
.
2.
In the ad
ustment menu, select
Bi-Directional Adjustment
. The
followin
screen appears.
Figure 5-31. Bi-D Adjustment Menu
3.
Select
Print the Bi-D adjustment pattern
. The followin
screen
appears.
Figure 5-32. Before Printing the Bi-D pattern
4.
When
ou press Enter, the printer starts printin
a Bi-D ad
ustment
pattern
see Fi
ure 5-33 on the next pa
e
.
M S-D O S Prom pt-S C 640
Bi-D irectional A djustm ent
E s c : P re v io u s U p /D o w n : S e le c t E n te r: O K
Adjust
C heck present adjustm ent data
Print the Bi-D adjustm ent pattern
M S-D O S Prom pt-SC 640
E s c : P re v io u s E n te r: O K
Print a B i-D adjustm ent pattern for the present data?
200 C PS: present data -2, present data, present data +2