Black Printhead Angular Adjustment - Epson Stylus Color 1520 Service Manual

4.1.4 Black Printhead Angular Adjustment

This adjustment must be made when replacing or disassembling the black printhead. The compression
spring holds the black printhead to the supporting point of the CR unit and the angle adjust lever located
underneath. The adjustment lever moves the black printhead parallel to the printing surface. This operation
aligns the nozzles on the printhead parallel to the paper feed direction.
Supporting Point
1. Connect the printer to the host computer with a parallel interface cable.
2. Run the adjustment program on the host computer.
3. Input the customer data. (Refer to Section 4.1.2.)
Move the cursor using ↑ or ↓ to select ADJUST in the 1st menu. Then press Enter. The main menu
4.
appears on the monitor.
Move the cursor using ↑ or ↓ to select HEAD ANGULAR ADJUSTMENT. Then press Enter, and the printer
5.
prints out the printhead angular adjustment patterns.
6. Move the angle adjust lever to align the vertical lines continuously by making the width (A) less than
four times the line width, as shown in Figure 4-5.
Move the lever right.
1. Press the Space key to repeat the operation. Press Enter to exit Black Head Angular Adjustment.
Select other adjustment using ↑ or ↓, or select RETURN TO 1st MENU to exit the main menu.
2.
Move the cursor using ↑ or ↓ to select END and press Enter to exit the adjustment program.
3.
;
While moving the angle adjust lever, lift it up a little.
;
Fit the notches in the lever to the location holes on the CR unit securely so the lever does not move.
;
Do not move the lever with too much force; it is breakable.
Black Printhead
Compression Spring
Printhead Angle Adjust Lever
Figure 4-4. Printhead Angular Adjustment
Move the lever left.
Paper feed direction
Figure 4-5. Black Printhead Angular Adjustment
CAUTION
Location Holes
(A)
Adjustment
4-7