Epson Stylus Color 640 Service Manual page 149

EPSON Stylus Color 440/640/740
Head Angular Adjustment Pattern (BK-M)
Figure 5-28. Sample of Head Angular Adjustment Pattern
5. Loosen the printhead securing screw securing the printhead on the
carriage. (You don't need to remove it completely.)
Figure 5-29. . Screw Position
NOTE: Make sure to loosen this screw. Otherwise, the printhead
angle will no change even if the adjusting lever moves.
Chapter 5 Adjustment
Printhead securing screw
6. Look at the black/magenta combination in the pattern and move the
adjusting lever to make the magenta lines stay between the black
lines with even space. The figure below shows how the pattern
changes as the adjusting lever moves right (rear) or left (front).
Correct condition = evenly spaced
To move this up,
Figure 5-30.
Lever Operation and Corresponding Change in Pattern
Revision A
To move this down,
move the lever to the
right (rear).
move the lever to
the left (front).
Adjusting Lever
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