Black Head Angle Adjustment - Epson Stylus 1500 Service Manual

Black Head Angle Adjustment

The black head angle adjustment is needed when the black head is replaced or disassembled. If this
adjustment is not correct, a white banding problem may occur, or the color head timing may not
match the black head timing. The following figure illustrates the black head angle adjustment.
Adjust the black head angle using the adjust lever. The lever has an eccentricity toward the
fulcrum of the lever. When you move the lever toward the front or back, the lever shaft pushes the
printhead toward the front or back. Then the black head is swung right or left. This motion makes
the head angle adjustment.
Nozzles
Figure 4-5. Black Head Angle Adjustment
The program produces an adjustment pattern. Refer to the pattern to perform the adjustment with
the lever.
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. 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, 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 "Black Head Angle Adj." to perform the black head angle adjustment
operation by pressing the 1, 2, ↑, and ↓ keys.
EPSON Stylus 1500 Service Manual
Angle Adjust Lever
Black 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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Adjustments
Carriage Unit
4-11