OF5750/5950 Series January 2001
7 - 2
7.1
Overall Troubleshooting Flow Chart
Key operation activates
the OKIFAX 5750/5950
Perform SELF-DIAGNOSIS.
Print test OK?
LCD works?
ALARM LED lights?
(Pressing Menu/Exit key causes
"MENU" to appear on LCD?
Pressing the key makes a key touch-tone?)
Yes
RAM1 check OK?
Yes
FLASH memory check OK?
Yes
Local copy OK?
Yes
Transmission problem?
No
Auto dial OK?
Yes
Auto reception OK?
Yes
Reception problem?
No
Start
Verify symptom.
Go to 7.2 (No LCD operation).
Go to 7.3 (ALARM LED on).
No
Replace MCNT(R76) and/or
OPE (P76, P77)unit.
Go to 7.4 (Printing test failure).
Replace FLASH memory(s) on MCNT
(R76) board
Go to 7.5 (No local copy).
Go to 7.6 (Auto dial failure).
Go to 7.7 (Transmission problem).
Go to 7.8 (Auto reception failure).
Go to 7.9 (Reception problem).
Note*
:
Replace RAM(s)
(RAM1 on MCNT(R76) board)
Yes
No
No
No
RAM2 check OK?
Yes
Replace IC26
on MCNT (R76) board
No
No
No
No
Yes
No
Yes
Yes
No
Yes
OPT-MEM "OK" or "NG" is
printed when the MEMORY board
(Option) is inserted on the MCNT
board.
Note
: M76 board for OKIFAX 5750/5950
is shown as MCNT (R76).
Summary of Contents for OKIFAX 5950
Page 9: ...CHAPTER 1 GENERAL INFORMATION ...
Page 101: ...OF5750 5950 Series January 2001 1 92 1 6 21 NIC Information ...
Page 107: ...CHAPTER 2 INSTALLATION PROCEDURE ...
Page 264: ...CHAPTER 3 BRIEF TECHNICAL DESCRIPTION ...
Page 272: ...CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY ...
Page 277: ...OF5750 5950 Series January 2001 4 5 Appearance of the OKIFAX 5750 5950 ...
Page 302: ...CHAPTER 5 ADJUSTMENTS ...
Page 306: ...CHAPTER 6 CLEANING AND MAINTENANCE ...
Page 341: ...CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5750 5950 ...
Page 400: ...Appendix A PC Board Descriptions and Operation ...
Page 491: ...Appendix B DescriptionsofPrintOperation ...
Page 513: ...Appendix C Not used at this time ...
Page 516: ...OF5750 5950 Series January 2001 D 1 Section 1 CABINET ASSEMBLY 27 28 29 ...
Page 518: ...OF5750 5950 Series January 2001 D 3 Section 2 CONTROL PANEL ASSEMBLY 11 ...
Page 520: ...OF5750 5950 Series January 2001 D 5 Section 3 PRINTER ASSEMBLY 53 54 31 10 55 52 34 56 ...
Page 523: ...OF5750 5950 Series January 2001 D 8 Section 4 BASE ASSEMBLY ...
Page 525: ...OF5750 5950 Series January 2001 D 10 Section 5 FRAME ASSEMBLY SCANNER L 31 30 33 32 ...
Page 527: ...OF5750 5950 Series January 2001 D 12 Section 6 FRAME ASSEMBLY SCANNER U ...
Page 529: ...OF5750 5950 Series January 2001 D 14 Section 7 CABLES OPTION BOARDS ...
Page 530: ...OF5750 5950 Series January 2001 D 15 28 29 Section 7 CABLES OPTION BOARDS ...
Page 532: ...Appendix E Not used at this time ...