Head Angular Adjustment - Epson Stylus Photo Service Manual

EPSON Stylus Photo

4.2.2.5 Head Angular Adjustment

The head angular means the angle at which the printhead unit installed on the carriage assembly against
the carriage movement direction and the printhead must be parallel with the carriage movement direction
so that the lines printed with each nozzle are evenly positioned. Therefore, this adjustment should be
made when the following service is made:

Replacing or removing the printhead unit
The head angular actually set by the adjust lever installed on the carriage assembly and the program print
the check pattern to see the level of head angular.
*Refer to next page for [SCREEN-1] to [SCREEN-2].
1. Before performing this adjustment, be sure to perform "VH Setting" (Refer to section 4.2.2.4)
2. At the main menu [SCREEN-1], input "3" to select "Angular Adjust Printing" and press ENTER key.
3. Check to see if the lines printed in MAGENTA color is positioned in the middle of two BLACK lines with
the check pattern printed by the program. If the position of MAGENTA lines are incorrect, input "K" to
select "Angular Adjust Setting" at the main menu and the carriage assembly moves to the middle of the
printer. Then, loosen a screw (No.3) fixing "FASTNER, HEAD" a little bit and shift the position of
angular adjust level located at the right bottom of the carriage assembly to either forward (move
MAGENTA line to down) or backward (move MAGENTA line to up).
4. After adjusting the position of angular adjust lever, input "Y" and press ENTER key and the carriage
assembly returns to the home position.
5. Input "3" to print the check pattern again. If the level is still not correct, repeat the step 3 and 4.
6. If the level is correct, input "K" again and tighten a screw to fix "FASTNER, HEAD". Then, at the menu
[SCREEN-2], input "Y" and press ENTER key to complete the adjustment.
4-8
Figure 4-6. Head Angular Adjustment
Rev. A