Color Head Angle Adjustment - Epson Stylus 1500 Service Manual

Adjustments

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.
Nozzles
Figure 4-8. Color Head Angle Adjustment
1. Connect a PC to the target printer via port LPT1 using a parallel interface cable and turn the
printer on.
2. Load GW-BASIC and run the program ST1500.BAS. 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, the U.S. market, or 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 ↓. Patterns are printed out with the color (magenta, cyan
and yellow) adjustment pattern. The color head angle adjustment pattern is shown in the
following illustration.
4-14
Carriage Unit
Adjust Lever
Color Head PCB
[********]
<<Menu 2>>
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END
Destination Data Writing only
Initial Ink Charging
Black - Color HV Adj.
Head Gap Adj.
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EPSON Stylus 1500 Service Manual