Epson Stylus Photo R290, Service Manual, Page: 101 / 125

EPSON Stylus Photo R280/R285/R290 Revision B
Chapter 5 Adjustment 5.2 Using the Adjustment Program 101
5.2 Using the Adjustment Program
This section describes how to judge the adjustment patterns printed by the Adjustment
Program. For information on how to operate the Adjustment Program, see the
instructions displayed by the Adjustment Program.
5.2.1 Top Margin Adjustment
Patterns are printed as shown below.
Figure 5-1. Top Margin Adjustment Pattern
How to Judge
Measure the distance from the top edge of paper to the printed line, and enter any one
of the “-”, “0”, “+” according to the judging standard.
5.2.2 Head Angular Adjustment
Two patterns are printed as shown below.
† Band pattern
The following pattern is printed. The lines below “0 >> 80” are printed while the
carriage moves from the home to the other side, and lines below “80 >> 0” are printed
while the carriage returns to the home.
Figure 5-2. Head Angular Adjustment (Band) Pattern
How to Judge
Examine the printout patterns and enter the value (-16 to 16) for the most straight lines.
Additional information
When “16” or “-16” is the most straight lines, it indicates that the printhead is not
installed correctly. Reassemble the printhead and carry out this adjustment again.
[Judging Standard]
The distance from a paper top edge to a line is:
• 4 mm or more: Choose the “-” from a combobox.
• 2 mm or less: Choose the “+” from a combobox.
C H E C K
P O I N T
Example for judgement
䎛䎓䎃䎡䎡䎃䎓
2
4
6
-16
-14
-12
䎓䎃䎡䎡䎃䎛䎓
2
4
6
-16
-14
-12
0 to 80 column 80 to 0 column
NG OK