Action Items For Lcd Display Problems - OKIDATA OF2600 Service Manual

Action Items for LCD Display Problems

Number Action
1 Replace printer control board. If the problem persists, replace power supply board.
2 Check power supply voltages, cover open switch, and cover open switch arm. Replace printer control
board.
3 Check installation of the main control board, connection of connector CN11.
4 Try the following:
1. Check power supply voltages.
2. Replace printer board.
3. Replace main control board.
5 Check installation of printer control board, power supply board.
6 Replace printer control board.
7 Check fan motor, printer control board connectors, power supply voltages.
8 Replace fan motor, printer control board, power supply board.
9 Check electrical connection between power supply board and the contact assembly.
10 Check entrance sensor lever, hopping roller, resist motor, power supply board, cover open switch
actuator.
11 Check image drum, cover open switch actuator, drum motor, drum motor gear, printer control board.
12 Check exit sensor lever, cover open switch actuator, power supply board.
13 Replace printer control board, main control board, power supply board.
14 Check paper sensor lever, power supply board, printer control board, main control board.
Action Items Diagram
High voltage outputs (and measurement points) are connected to the contact assembly as shown in the
diagram below.
Service Guide OF2200/2400/2600
Chapter 2 Failure Analysis
Page: 76