Epson Stylus 1500, Service Manual

Page: 114 / 185

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.
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 >>
<<Menu 2>>
Head Data Writing --------------
----------------- --------------
Black Head Angle Adj. END
Uni-D Adj. Destination Data Writing only
Bi-D Adj. Initial Ink Charging
Color Head Angle Adj.
Black - Color HV Adj.
Head Gap 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.
Angle Adjust Lever
Nozzles
Black Head PCB
Carriage Unit
Figure 4-5. Black Head Angle Adjustment
Adjustments
EPSON Stylus 1500 Service Manual 4-11