OKIDATA OL1200 Manuale utente

Page: 1

Service Guide OL1200

Chapter 0 About This Manual

OL1200

LED Page Printer

Adobe Acrobat printable reference

copy of the OKIDATA Service Training Manual.

09/17/97

Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the

pictures rendered at 300 dpi, which is ideal for printing, but does not view on most

displays well.

Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

Table of Contents Page

Service Guide OL1200

0 About This Manual

Front Cover 1

1 Configuration

1. Configuration 2

1.2 Printer Configuration 3

1.3 Optional Configuration 4

1.4 Specification 5

1.5 Safety Standards 6

....1.5.2 Warning Label 7

2 Operation Description

2. Operation Description 8

2.1 Main Control Board (Aolm-Pcb) 9

2.2 Power/Sensor Board 10

2.3 Relay/Driver Board (Aolc Board) 11

2.4 Electro-Photographic Process 12

....2.4.2 Electro-Photographic Process 13

....2.4.3 Process Operation Descriptions 14

........(2) Feeding 15

........(3) Charging 16

........(4) Exposure 17

........(5) Developing 18

........(6) Transfer 19

........(7) Fusing 20

........(8) Cleaning 21

........(9) Cleaning Of Rollers 22

2.5 Paper Jam Detection 23

2.6 Cover Open 24

2.7 Toner Low Detection 25

2.8 Stacker-Full Detection 26

2.9 Page Size Detection 27

3 Parts Replacement

3. Parts Replacement 28

3.1 Precautions For Parts Replacement 29

........[Service Tools] 30

3.2 Parts Layout 1- 4 31

....Parts Layout 2 - 4 32

....Parts Layout 3 - 4 33

....Parts Layout 4 - 4 34

3.3 How To Change Parts 35

....3.3.1 Rear Cover, Side Cover (L) Assy, Face-Up Stacker

Assy, And I/F Cover Assy. 36

....3.3.2 Contact Assy 37

Table of Contents Page

....3.3.3 Dc Fan Motor 38

....3.3.4 Manual Feed Hopper Assy 39

....3.3.5 Side Cover (R) (Operator Panel Assy) 40

....3.3.6 Earth Plate Bk (R) (Aolm-Pcb, Ic Cover) 41

....3.3.7 Stacker Cover Assy, Damper Arm, And Washer 42

....3.3.8 Damper 43

....3.3.9 Stacker Full Sensor Assy 44

....3.3.10 Cable Cover (Cable Guides A And B) 45

....3.3.11 Eject Roller Assy 46

....3.3.12 Paper Supply Guide D 47

....3.3.13 Separator F 48

....3.3.14 Front Feeder Roller Assy 49

....3.3.15 Hopping Motor 50

....3.3.16 Front Feeder Paper End Sensor 51

....3.3.17 Main Chassis Unit 52

....3.3.18 Registration Roller 53

....3.3.19 Drum Motor 54

....3.3.20 Idle Gear 55

....3.3.21 Fusing Assy 56

....3.3.22 Fuser Pressure Roller 57

....3.3.23 Ep Lock Shaft 58

....3.3.24 Hopping roller Assy 59

....3.3.25 Outlet sensor lever 60

....3.3.26 Toner sensor lever 61

....3.3.27 Paper sensor lever 62

....3.3.28 Inlet sensor lever 63

....3.3.29 Insulator 64

....3.3.30 Paper end lever 65

....3.3.31 Guide rail (L) Assy 66

....3.3.32 Guide rail (R) Assy 67

....3.3.33 IC card cover 68

....3.3.34 LED head 69

....3.3.35 Separator Assy 70

....3.3.36 Transfer roller 71

4 Adjustment

4. Adjustment 72

4.1 Maintenance Modes And Functions 73

....4.1.1 User maintenance mode 74

........User maintenance mode menu system 75

....4.1.2 System maintenance mode 76

........System maintenance mode menu system 77

....4.1.3 Engine maintenance mode 78

........Engine maintenance mode menu system 79

....4.1.4 EEPROM initialization 80

Table of Contents Page

4.2 Adjustment When Replacing A Part 81

....4.2.1 Setting of LED head drive time 82

....4.2.2 Resetting the fuser counter 83

....4.2.3 Destination setting 84

5 Periodic Maintenance

5.1 Periodic Parts Replacement 85

5.2 Cleaning 86

....5.2.1 Cleaning of LED Lens Array 87

....5.2.2 Cleaning Page Function 88

5.3 Lubrication - General Information 89

6 Troubleshooting Procedures

6.1 Troubleshooting Tips 90

6.2 Points to Check before Correcting Image Problems 91

6.3 Tips for Correcting Image Problems 92

6.4 Preparation for Troubleshooting 93

6.5 Troubleshooting Flow 94

....6.5.1 LCD status message/trouble list 95

........LCD Status Messages: (1-4) General 96

........LCD Status Messages: (2-4) General 97

........LCD Status Messages: (3-5) Error Controller nn 98

........LCD Status Messages: (4-4) Error Controller On= xxxxx 99

....6.5.2 LCD message troubleshooting 100

........1. The printer does not work normally after being turned

on. 101

........2-1 Paper input jam (1st tray) 102

........2-2 Paper input jam (front feeder) 103

........2-3 Paper feed jam 104

........2-4 Paper exit jam 105

........3 Paper size error 106

........4 Fuser unit error (ERROR 71), (ERROR 72), (ERROR

73) 107

........5 Synchronous serial I/O error (ERROR 74) or I/F time-out

between printer and optinal tray (ERROR 81) 108

........6. I/F time-out occurs between the printer and the operator

panel (ERROR 80) . 109

........7. Communications with the host cannot be performed via

the parallel 110

........8. Data from the host not received via the serial interface. 111

........9. Data cannot be received through the OKI HSP interface 112

....6.5.3 Image troubleshooting 113

........1. Images are light or blurred a whole. 114

........2. Dark background density 115

........4. Black belts or stripes in the vertical direction 116

........5. Cyclic error 117

Table of Contents Page

........6. Print voids 118

........7. Poor fusing 119

........8. White belts or streaks in the vertical direction 120

7 Wiring Diagram

7.1 Wiring Diagram 121

7.2 PCB Layout 122

7.3 Resistance Check 123

7.4 Short Plug Setting 124

8 Parts List

8. Parts List 125

Main Chassis Unit 126

Front Feeder Unit 127

Base Unit 128

A RS-232 Serial Interface

Rs-232 Serial Interface 129

B Centronics Parallel Interface

Centronics Parallel Interface 130

C High Capacity Second Paper Feeder

2.1 General Mechanism 131

High Capacity Second Paper Feeder 132

....1.2 External View and Component Names 133

2. Mechanism Description 134

....2.2 Hopper Mechanism 135

3. Parts Replacement 136

....3.2 Parts Layout 137

....3.3 Parts Replacement Methods 138

........3.3.1 Idle rollers 139

........3.3.2 AOLT-PCB 140

........3.3.3 Hopping motor 141

........3.3.4 Feed roller 142

........3.3.5 Hopping roller rubber 143

........3.3.6 Side frame (L) assy 144

........3.3.7 Side frame (R) assy 145

4. Troubleshooting 146

....4.3 Troubleshooting Method 147

........4.3.1 LCD Status Message List 148

........4.3.2 Troubleshooting Flow 149

5. Connection Diagram 150

....5.2 PCB Layout 151

6. Parts List 152

D Power Envelope Feeder

....1.1 Functions 153

....1.2 External View and Component Names 154

2. General Mechanism 155

Table of Contents Page

....2.2 Hopper Mechanism 156

3. Parts Replacement 157

....3.2 Parts Layout 158

....3.3 Parts Replacement Methods 159

........3.3.1 Separator 160

........3.3.2 AOLE-PCB 161

........3.3.3 Square-shaped connector 162

........3.3.4 Hopping Motor 163

........3.3.5 Planet gear 164

........3.3.6 Roller B 165

........3.3.7 Roller A 166

........3.3.8 Mini pitch belt & Feed roller 167

4. Troubleshooting 168

........4.3.2 Troubleshooting Flow 169

5. Connection Diagram 170

....5.2 PCB Layout 171

6. Parts List 172

Page: 2

Service Guide OL1200

Chapter 1 Configuration

1. CONFIGURATION

1.1 System Configuration

OL1200 consists of control and engine blocks as the standard configuration (See Figure below 1-1.) In

addition, the following options are also available.

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Page: 3

Service Guide OL1200

Chapter 1 Configuration

1.2 Printer Configuration

The printer unit consists of the following hardware components:

- Electro-photographic processor

- Paper feeder

- Controller

- Operator panel

- Power/sensor board

Figure 1-2 shows the printer unit configuration.

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Page: 4

Service Guide OL1200

Chapter 1 Configuration

1.3 Optional Configuration

The options below are available for use with OL1200. They are sold separately from the printer unit.

(1) Power Envelope Feeder

(2) High Capacity Second Paper Feeder

(3) Font Card

(4) RAM module

• 8MB RAM module

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