41309401TH Rev.4
229 /
7.8
Auto Reception Failure
Start
Solved?
No
Yes
No
Check the following items:
1. Placed in the manual receive mode?
2. START key pressed to answer the call?
3. Closed network is ON and the remote
phone number is not registered in
one-touch key or two-digit auto dial
code?
Your handset telephone
rings when a call arrives?
Return to section 7.1
Replace MCNT Board.
Manual reception OK?
Solved?
Ringing signal is
detected at Pin 4 of CN3
(NCU)?
Replace NCU Board.
Solved?
Check that the ringing signal
meets the specification of
the fax machine.
(See Item of Table)
Yes
No
No
Yes
Yes
Yes
Yes
No
Placed in the auto receive
mode? If not, place the
fax machine in that mode
by pressing AUTO REC key.
Solved?
Set CLOSED NETWORK
(Function program No. 08)
to OFF.
Yes
No
No
1. Check the handset of
telephone set.
2. Check the line.
3. Check the exchange.
Summary of Contents for OKIFAX4550
Page 156: ...41309401TH Rev 4 156 Figure 4 2 Appearance of the OKIFAX4550 OKIOFFICE87...
Page 428: ...41309401TH Rev 4 428 SECTION 1 CABINET ASSEMBLY OKIFAX4550 OKIOFFICE87...
Page 431: ...41309401TH Rev 4 431 SECTION 2 UNIT PRINTER...
Page 433: ...41309401TH Rev 4 433 SECTION 3 UNIT 051 OPE PANEL...
Page 435: ...41309401TH Rev 4 435 SECTION 4 OPEPANEL OPERATION PANEL ASSEMBLY...
Page 437: ...41309401TH Rev 4 437 SECTION 5 FRAME ASSEMBLY SCANNER L...
Page 439: ...41309401TH Rev 4 439 SECTION 6 PLATE ASSEMBLY SCANNER B...
Page 441: ...41309401TH Rev 4 441 SECTION 7 PLATE ASSEMBLY SCANNER R...
Page 443: ...41309401TH Rev 4 443 SECTION 8 FRAME ASSEMBLY SCANNER U...
Page 445: ...41309401TH Rev 4 445 SECTION 9 COVER ASSEMBLY TOP...
Page 447: ...41309401TH Rev 4 447 SECTION 10 PLATE ASSEMBLY BASE...
Page 449: ...41309401TH Rev 4 449 SECTION 11 PRINTER BASE FRAME UNIT Heat assy...
Page 452: ...41309401TH Rev 4 452 SECTION 12 PRINTER HEAT ASSY...
Page 454: ...41309401TH Rev 4 454 SECTION 13 CABLES...
Page 457: ...41309401TH Rev 4 457 46F PCB Assy 1 9 41196601...
Page 466: ...41309401TH Rev 4 466 R46 PCB Assy 1 10 41033201...
Page 476: ...41309401TH Rev 4 476 04W PCB Assy 1 3 40071401...
Page 479: ...41309401TH Rev 4 479 EN9 PCB Assy 1 6 41144301...
Page 485: ...41309401TH Rev 4 485 INU PCB Assy 41144501 US 1 4 41144502 INT 1 5...
Page 493: ...41309401TH Rev 4 493 MPW1546 120V PCB Assy 1 5 SIPS1303...
Page 498: ...41309401TH Rev 4 498 MPW1446 230V PCB Assy 1 6 SIPS1302...
Page 504: ...41309401TH Rev 4 504 P2H PCB Assy 1 4 40599101...
Page 508: ...41309401TH Rev 4 508 P6L PCB Assy 1 3 40386701...
Page 511: ...41309401TH Rev 4 511 G4N PCB Assy 1 5 41033701...
Page 585: ...41309401TH Rev 4 585 Figure H 7 1 2 RTC Time Read Figure H 7 2 2 RTC Time Set...
Page 587: ...41309401TH Rev 4 587 Figure H 9 Figure H 10 1 3...
Page 588: ...41309401TH Rev 4 588 Figure H 10 2 3 Figure H 10 3 3...
Page 589: ...41309401TH Rev 4 589 Figure H 11 1 3 Figure H 11 2 3...
Page 590: ...41309401TH Rev 4 590 Figure H 12 Figure H 11 3 3...
Page 591: ...41309401TH Rev 4 591 Figure H 13 1 2 Figure H 13 2 2...
Page 592: ...41309401TH Rev 3 592 592 Figure H 14 1 2 Figure H 14 2 2...
