41309401TH Rev.4
551 /
4.2.5 Recording paper running system NG
No
No
Yes
Yes
Yes
Yes
Replace IC2.
Yes
Yes
Yes
No
No
No
Yes
No
No
No
5: Recording paper
running system NG
Voltage of pin 3 of TR506
is approximately 0.7V
lower than pin 1 when
recording paper is fed
Input of pin 96 of IC2
repeats 5V and 0V cyclically
along with drum rotation
Pin 2 of TR505 changes
from 0V to 5V when
recording paper is fed
Input waveforms of pins
17, 26 of IC9 are similar to
Figures H.4(1/2, 2/2)
Replace IC9 or F1.
Check CN6.
Recording paper feed is NG
Outlet error
Motor is started?
Replace CPU1.
Replace TR505.
Replace TR506.
Input of pin 85 of IC2 changes
from 5V to 0V when the
outlet sensor is moved
Toner near end
problem is identified
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...
