Oki PAGE 18, Service Manual, Page: 4 / 395

Table of Contents Page
........3.3.18 LED Head 47
........3.3.19 Paper cassette, ROLLER Assy - Feed, ROLLER
Assy - Hopping 48
........3.3.20 Frame Assy - Separation 49
........3.3.21 Transfer Roller / TR Gear / TR Bearing 50
........3.3.22 EP lock shaft 51
........3.3.23 LEVER Assy - Out Sensor 52
........3.3.24 Toner sensor lever 53
........3.3.25 Paper sensor lever 54
........3.3.26 Inlet sensor lever 55
........3.3.27 Power supply unit 56
........3.3.28 Lever-Paper end & Lever-Paper near end 57
........3.3.29 Guide Assy - Cassette (L) 58
........3.3.30 Guide Assy - Cassette (R) 59
4 Adjustment
4.0 Adjustment 60
....4.1 Maintenance Modes and Functions 61
........4.1.1 User maintenance mode 62
........4.1.2 System maintenance mode 63
........4.1.3 Engine maintenance mode 64
........4.1.4 EEPROM initialization 65
....4.2 Adjustment When Replacing a Part 66
........4.2.1 Setting LED Head Drive Time 67
........4.2.2 Destination setting 68
........4.2.3 Setting of LED head drive time 69
5 Periodical Maintenance
5.1 Periodic Maintenance 70
5.2 Cleaning 71
....5.2.1 Cleaning the LED Lens Array 72
....5.2.2 Cleaning the Plastic Film 73
6 Troubleshooting Procedures
6.1 Troubleshooting Tips 74
6.2 Check Points Before Correcting Image Problems 75
6.3 Notes When Correcting Image Problems 76
6.4 Preparation Before Troubleshooting 77
6.5 Troubleshooting Flowchart 78
....6.5.1 Status Monitor Message List 79
....6.5.2 LCD message troubleshooting 80
........(1) The printer does not work normally after being turned
on. 81
........(2) Paper jams 82
............(2)-1 Paper input jam (1st tray) 83
............(2)-2 Paper input jam (front feeder) 84
............(2)-3 Paper feed jam 85
............(2)-4 Paper exit jam 86
........(3) Paper size error 87
........(4) Fuser unit error (ERROR 71), (ERROR 72), (ERROR
73) 88
........(5) I/F time-out between printer and optional tray (ERROR
81) 89
........(6) I/F time-out between printer and Duplex Unit (ERROR
83) 90