Brother HL-820 Service Manual page 6
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Also See for HL-820:
- Service manual (305 pages) ,
- User manual (91 pages) ,
- Quick setup manual (42 pages)
Table of Contents
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CHAPTER IV MAINTENANCE AND TROUBLESHOOTING.......................... IV-1
1. INTRODUCTION ..............................................................................................................IV-1
1.1
Initial Check........................................................................................................................ IV-1
1.2
Basic Procedure ................................................................................................................. IV-2
2. CONSUMABLE PARTS....................................................................................................IV-3
2.1
Drum Unit........................................................................................................................... IV-3
2.2
Toner Cartridge .................................................................................................................. IV-3
2.3
Periodical Replacement Parts............................................................................................. IV-3
3. IMAGE DEFECTS ............................................................................................................IV-4
3.1
Image Defect Examples ..................................................................................................... IV-4
3.2
Troubleshooting Image Defects .......................................................................................... IV-5
3.3
Location of High-voltage Contacts and Grounding Contacts.............................................. IV-19
3.4
Location of Feed Roller Shaft and Grounding Contacts..................................................... IV-20
4. PAPER JAM ...................................................................................................................IV-21
5. TROUBLESHOOTING MALFUNCTIONS.......................................................................IV-22
6. INSPECTION MODE ......................................................................................................IV-27
6.1
Incorporated Inspection Modes......................................................................................... IV-27
6.2
Error Codes...................................................................................................................... IV-29
APPENDICES
1. Serial No. Descriptions ......................................................................................................A-1
2. Connection Diagram, HL-820/1020 ...................................................................................A-2
3. Connection Diagram, HL-1040 ..........................................................................................A-3
4. Connection Diagram, HL-1050 ..........................................................................................A-4
5. Main PCB Circuit Diagram, (HL-820/1020/1040), (1/2)......................................................A-5
6. Main PCB Circuit Diagram, (HL-820/1020/1040), (2/2)......................................................A-6
7. Main PCB Circuit Diagram, (HL-1050), (1/5)......................................................................A-7
8. Main PCB Circuit Diagram, (HL-1050), (2/5)......................................................................A-8
9. Main PCB Circuit Diagram, (HL-1050), (3/5)......................................................................A-9
10. Main PCB Circuit Diagram, (HL-1050), (4/5)....................................................................A-10
11. Main PCB Circuit Diagram, (HL-1050), (5/5)....................................................................A-11
12. Panel Sensor PCB Circuit Diagram .................................................................................A-12
15. Low-voltage Power Supply PCB Circuit Diagram, HL-1050 (110 - 120V) ........................A-15
16. Low-voltage Power Supply PCB Circuit Diagram, HL-1050 (220 - 240V) ........................A-16
17. High-voltage Power Supply PCB Circuit Diagram............................................................A-17
18. How to Know Drum Unit Life & Page Counter .................................................................A-18
19. Diameter / Circumference of Rollers ................................................................................A-20
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Table of Contents
Troubleshooting
