Vertical Print Start Position Adjustment - OKIDATA OL400 Service Manual

3.3.04 Vertical Print Start Position Adjustment

General Information
The Vertical Print Start Position Adjustment is used to set the top of form position. Use this
adjustment to correct print start variations between different OL400 printers, or to achieve a 4.6
mm vertical start position, the default value.
A chart of the EEPROM addresses and print start positions is shown below.
The Vertical Print Start Position is Parameter 9.
Procedure
1. To change the Vertical Print Start Position, follow this procedure.
2. Power ON the printer while pressing Switch 1 on the Engine Control board. The LED will flash
continuously, indicating that the printer is in Parameter 1 of the maintenance mode.
3. Press Switch 1 eight times to access Parameter 9. The LED will flash 9 times, indicating
Parameter 9 has been selected.
4. Press Switch 1 once for 5 seconds. The contents of the Parameter 9 register will be displayed.
5. To modify the contents of the Parameter 9 register, press Switch 1 (momentarily) to step
through the addresses (in accordance with the chart shown below).
6. To end the adjustment, press Switch 1 once for 5 seconds. The LED will flash 9 times,
indicating Parameter 9.
NOTE:
Ten flashes represent the number zero.
On the table below, Address 0 comes after Address 15
EEPROM Address / Print Start Position Table
EEPROM Print Start Position
Address (in mm)
0 DEFAULT 0
1 +.5
Service Guide OL400
Chapter 3 Maintenance & Disassembly
EEPROM Print Start Position
Address (in mm)
8 -4.0
9 -3.5
Page: 62