Lexmark 4090-001 Manuale Utente Scaricare il pdf (Pagina 26)

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Diagnostic Aids 3-1

4090-001

3. Diagnostic Aids

Use these diagnostic test procedures to verify a repair. There are

two ways to enter test procedures, each procedure will indicate the

method to use:

Procedure 1:

• Press and hold the Paper Feed button while turning the

printer on. Release the button when the printer completes

POST.

Procedure 2:

• Turn the printer off.

• Use a two pin jumper on connector J6 as indicated, then turn

the printer on. The test begins when the power button is

pressed.

Note: You can use the two pin jumper on J7 to perform the tests.

Remember to return the jumper to J7 when the test is finished.

A two pin jumper is also available in the parts packet:

1367169 and 69G4188.

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 77 78

4090-001 1
Contents 1 3
Preface 2 6
Safety Information 6
Sicherheitshinweise 7
Consignes de Sécurité 7
Norme di sicurezza 7
Pautas de Seguridad 8
Sikkerhedsoplysninger 8
Informações de Segurança 8
Chinese Safety Information 9
Korean Safety Information 9
Abbreviations 11
2. Diagnostic Information 12
POST Symptom Table 14
Symptom Tables 15
Paper Feed Problems 16
Power Problems 16
Print Quality Problems 16
Service Checks 17
Paper Feed Service Check 19
Paper Path Service Check 21
Parallel Port Service Check 22
Power Service Check 22
Print Quality Service Check 23
Transport Service Check 25
3. Diagnostic Aids 26
• Turn the printer off 26
Encoder Sensor Test 27
Initialize Error Log 28
Paper Sensor Test 29
• On - paper is in sensor 29
Parallel Port Test 30
Adjustments 34
Removal Procedures 34
Base Assembly Removal 35
Carrier Belt Removal 35
Code Module Removal 38
Encoder Card Removal 38
Encoder Strip Removal 38
Exit Drive Belt Removal 39
Exit Roller Removal 39
Feed Arm Assembly Removal 39
Front Cover Removal 40
Gutter Pad Removal 40
Inside Idler Gears Removal 41
Large Feed Roll Removal 42
Large Outside Gear Removal 43
Manual Insert Tray Removal 45
Mid Frame Assembly Removal 45
Paper Feed Motor Removal 46
Paper Load Door Removal 48
Power Supply Removal 48
Rear Cover Removal 52
Star Roller Removal 53
System Board Removal 53
5. Connector Locations 54
System Board Connectors 55
Encoder Card Connector 56
7. Parts Catalog 58
How To Use This Parts Catalog 58
Assembly 1: Covers 59
Assembly 2: Frames 61
Assembly 3: Paper Feed 63
Assembly 4: Electronics 65
Parts Catalog 7-10 67
Assembly 5: Carrier 69
Assembly 6: Carrier Transport 71
Assembly 7: Sheet Feeder 73
Parts Catalog 7-18 75

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Lexmark 4090-001 Manuale Utente Pagina 26

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