8-33
Confidential
•
120K KIT: Life 120,000 pages
It is not changed.
•
Pick-up roller (machine / LFU): Life 120,000 pages
Although the indication of the pick-up roller which is used in printing is not
changed, the indication of the other one which is not used is increased in
accordance with the number of print pages.
1) OPC Belt Cartridge
Life: 60,000 images
Condition: Above figure varies depending on pages/job. Refer to the list below.
Pages per job
1 page
2 page
3 page
4 page
5 page
6 page
24,000 30,000 35,000 39,000 43,000 46,000
Pages per job
7 page
8 page
9 page
10 page 11 page 12 page
49,000 51,000 53,000 54,000 56,000 57,000
Pages per job
13 page 14 page 15 page
∼
58,000
59,000
60,000
2) Fusing Unit
Life: 60,000 images
Condition: Above figure varies depending on coverage. Refer to the list below.
Coverage
∼
12.5% 12.5%
∼
20%
20%
∼
40%
40%
∼
60%
60%
∼
Additional life deleted
0
0.2
0.5
1
2
Life (pages)
60,000
50,000
40,000
30,000
20,000
Summary of Contents for MFC-9420CN
Page 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC 9420CN ...
Page 16: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Page 22: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 33: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 48: ...Confidential 3 1 4 CBV DBV Fig 3 16 Y M C K Fig 3 17 ...
Page 69: ...Confidential 3 3 5 Fig 3 35 ...
Page 73: ...Confidential 3 3 9 3 Interface Circuit Printer side Fig 3 38 ...
Page 82: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 85: ...Confidential 4 2 Cover page sample End page sample Fig 4 1 ...
Page 86: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 94: ...Confidential 5 5 5 1 1 AC Cord 1 Disconnect AC cord from the machine Fig 5 1 AC cord Machine ...
Page 175: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 203: ...Confidential CHAPTER 7 CLEANING ...
Page 205: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Page 213: ...8 6 Confidential Fig 8 2 Scanning Compensation Data List a b c d e f g h i j k l m n q ...
Page 224: ...8 17 Confidential Cover page sample End page sample Fig 8 8 ...
Page 255: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Page 279: ...Confidential 9 23 2 Image failure 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Page 280: ...Confidential 9 24 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 9 1 ...
Page 325: ...App 1 5 Confidential 6 Transfer Unit X X X X X X 7 1 2 3 Location SERIAL NO YEAR MONTH DATE ...
Page 398: ...B Power Supply PCB 100V 127V Confidential ...