Confidential
9-57
[ 8 ] Troubleshooting of fax functions
F-1
FAX can't send it.
User Check
(1) Verify that the telephone cord is securely inserted.
Possible cause
Step
Check
Result
Remedy
Dialing mode
setting
1
Dialing signal (PB or
DP) comes out
normally in each mode.
(Use telephone line
emulator.)
Yes
Check the dialing mode setting
at customer's again.
Check the telephone line cord
between machine and socket.
Connection
between main
PCB and NCU
PCB
2
Main PCB and NCU
PCB are properly
connected.
No
Fix the connection properly.
Harness between
main PCB and
NCU PCB
3
Harness is damaged.
Yes Replace the harness with a
normal part.
Connection
between main
PCB and control
panel PCB
4
Main PCB and control
panel PCB are properly
connected.
No
Fix the connection properly.
Harness between
main PCB and
control panel PCB
5
Harness is damaged.
Yes Replace the harness with a
normal part.
Contact of rubber
key
6
The rubber key works
correctly.
No
Replace the rubber key with a
normal part.
NCU PCB
7
Replacement of NCU
PCB solves the problem.
Yes Replace the NCU PCB with a
normal part.
Control panel PCB
8
Replacement of control
panel PCB solves the
problem.
Yes Replace the control panel PCB
with a normal part.
Main PCB
9
Replacement of main
PCB solves the problem.
Yes Replace the main PCB with a
normal part.
Содержание Intelli FAX-2820
Страница 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS FAX 2820 2825 2910 2920 MFC 7220 7225N ...
Страница 13: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 20: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 44: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 63: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Страница 66: ...Confidential 4 2 Cover page sample End page sample ...
Страница 67: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 136: ...Confidential 5 67 5 1 41 Harness Routing ...
Страница 137: ...Confidential 5 68 ...
Страница 138: ...Confidential 5 69 ...
Страница 139: ...Confidential 5 70 ...
Страница 140: ...Confidential 5 71 ...
Страница 141: ...Confidential 5 72 ...
Страница 142: ...Confidential 5 73 ...
Страница 145: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 151: ...Confidential CHAPTER 7 CLEANING ...
Страница 153: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Страница 158: ...8 4 Confidential MFC 7220 7225N Menu Set key and keys Start key Stop Exit key ...
Страница 161: ...8 7 Confidential Scanning Compensation Data List a b c d e f g h i ...
Страница 172: ...8 18 Confidential Cover page sample End page sample ...
Страница 180: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 317: ......
Страница 318: ......
Страница 319: ...Confidential FAX 2820 2825 2910 2920 MFC 7220 7225N APPENDIX 7 LOCATION TO ATTACH THE CAUTION LABEL S ...
Страница 321: ...February 05 SM FAX037 13 8X5A01 Printed in Japan ...