Oki OKIFAX 5400 Maintenance Manual page 5

4.3.3 Control Panel Assembly, Paper Guide (U) Assembly. ............................................ 4-8
4.3.4 Sub-roller, ADF Roller Assembly, Pinch Roller, Contact Image Sensor,
Document Detectors (PC1 and PC2). ..................................................................... 4-10
4.3.5 Resist Motor, Drum Motor, Release Guide Assembly, Manual Guide Assembly,
Stacker Cover, Fusing Unit ..................................................................................... 4-12
4.3.6 Lower Base, Motor Assembly, Back-up Roller, Transfer Roller .............................. 4-14
4.3.7 Resist Roller, Hopping Roller, Sensor Plates ......................................................... 4-16
4.3.8 MCNT Board, Power Supply Unit, Contact Assembly, Transformer, Sub-PSU ...... 4-18
CHAPTER 5 ADJUSTMENTS
5.1 Setting of LED Print Head Drive Time ................................................................................. 5-1
5.2.1 Confirmation Items .................................................................................................. 5-2
5.2.2 Measurement .......................................................................................................... 5-3
CHAPTER 6 CLEANING AND MAINTENANCE
6.1 Replacement of Consumable Parts ..................................................................................... 6-1
6.2 Routine Inspection ............................................................................................................... 6-3
6.3 Printer Counter Display/Clear .............................................................................................. 6-5
6.4 Printer Counter Display/Clear .............................................................................................. 6-6
6.5 Self-diagnosis Test .............................................................................................................. 6-7
6.6 Sensor Calibration Test ....................................................................................................... 6-10
6.7 LED Test .............................................................................................................................. 6-12
6.8 Tone Send Test ................................................................................................................... 6-13
6.9 High-speed Modem Send Test ............................................................................................ 6-14
6.10 High-speed Modem Receive Test ........................................................................................ 6-16
6.11 MF Send Test ...................................................................................................................... 6-17
6.12 Tone (TEL/FAX) ................................................................................................................... 6-18
6.13 Protocol Dump Data Printing ............................................................................................... 6-19
6.14 System Reset ....................................................................................................................... 6-23
6.15 Service Code ....................................................................................................................... 6-24
CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 4500
7.1 Overall Troubleshooting Flow Chart .................................................................................... 7-2
7.2 No LCD Operation ............................................................................................................... 7-3
7.3 ALARM LED On ................................................................................................................... 7-4
7.4 Printing Test Failure ............................................................................................................. 7-5
7.5 No Local Copy ..................................................................................................................... 7-6
7.6 Auto Dial Failure .................................................................................................................. 7-7
7.7 Transmission Problem ......................................................................................................... 7-8
7.8 Auto Reception Failure ........................................................................................................ 7-10
7.9 Reception Problem .............................................................................................................. 7-11
7.10 Sensor Calibration Test ....................................................................................................... 7-13
7.11 LED Test .............................................................................................................................. 7-14
7.12 Tone Send Test ................................................................................................................... 7-15
7.13 High-speed Modem Test...................................................................................................... 7-16
7.14 MF Send Test ...................................................................................................................... 7-18
7.15 Tone (TEL/FAX) Send Test ................................................................................................. 7-19
7.16 No Acoustic Line Monitor ..................................................................................................... 7-20
7.17 Power Supply Unit ............................................................................................................... 7-21
7.18 No Document Feeding ......................................................................................................... 7-28
7.19 Multiple Document Feeding ................................................................................................. 7-29
7.20 Document Skew ................................................................................................................... 7-30
7.21 Document Jam ..................................................................................................................... 7-32
7.22 Printer Unit ........................................................................................................................... 7-33
7.22.1 Precautions ............................................................................................................. 7-33
7.22.2 Troubleshooting Flow Charts of Printer Unit ........................................................... 7-34
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