Color Head Angle Adjustment - Epson Stylus 1500 Service Manual

Stylus 1500 Service Manual

4.1.5 Color Head Angle Adjustment

The color head angle adjustment is required when the optional color head is replaced or disassembled. If this
adjustment is not correct, a white banding problem may occur or black head timing may not match the color
head timing. The following figure illustrates the color head angle adjustment. The color printhead angle is
adjusted using the adjust lever as was done with the black head. The lever has an eccentricity at the lever's
fulcrum. Moving the lever toward the front or back, pushes the printhead toward the front or back. Then the
color head is swung right or left. This motion makes the head angle adjustment. This program produces an
adjustment pattern. Refer to the pattern to perform the adjustment.
Figure 4-7. Color Head Angle Adjustment
1. Connect a PC to the target printer using a parallel interface cable and turn the printer on.
2. Load BASIC and run the program ST1500.BAS. Then the main menu appears, as shown below.
Customer Data
Printer Setting[********]
3. Using Table 4-3, input the appropriate 8-digit ID number for the destination as the printer setting for
"Customer Data." (For example, EAI: 20000A00 ). Then the main menu appears, as shown below.
Stylus 1500
Customer Data <********> 95/**/**
<< Menu 1 >>
Head Data Writing
-----------------
Black Head Angle Adj.
Uni-D Adj.
Bi-D Adj.
Color Head Angle Adj.
Select:<Up> or <Down> Go:<SPACE> or <ENTER> Change menu:<1> or <2>
4. Move the cursor to "Color Head Angle Adj." to perform the color head angle adjustment operation by
pressing 1, 2, , and
pattern. The color head angle adjustment pattern is shown in the following illustration.
Rev.A
Adjust Lever
Nozzles
Color Head PCB
. Patterns are printed out with the color ( magenta, cyan and yellow) adjustment
Carriage Unit
<<Menu 2>>
--------------
Color Ink Counter Rest
END
Destination Data Writing only
Initial Black Ink Charging
Black - Color HV Adj.
Head Gap Adj.
--------------t
Adjustments
4-11