Page: 63Service Guide OL400Chapter 3 Maintenance & Disassembly3.3.05 Setting the LED Head Drive TimeGeneral InformationThis adjustment is necessary only when replacing the LED head. However, if the luminous energyratings of the new and original LED heads are the same, adjustment is not necessary. Theluminous energy rating is on the label on the LED head. Digits three and two (reading from theright) are the drive time rating.The LED Head Drive Time is Parameter 13.ProcedureTo change the LED Head Drive Time, follow this procedure.1. Power ON the printer while pressing Switch 1 on the Engine Control board. The LED will flashcontinuously, indicating that the printer is in Parameter 1 of the maintenance mode.2. Press Switch 1, twelve times to access Parameter 13. The LED will flash thirteen times,indicating Parameter 13 has been selected.3. Press Switch 1 once for five seconds. The contents of the Parameter 13 register will bedisplayed.4. To modify the contents of the Parameter 13 register, press Switch 1 (momentarily) to stepthrough the addresses (in accordance with the chart shown below).5. To end the adjustment, press Switch 1 once for five seconds. The LED will flash thirteen times,indicating Parameter 13.LED Drive Time Rating / Drive Time Setting TableDrive Time Rating displayed onLED HeadDrive Time Setting Value(Address)08 509 410 311 12 213 14 1
