Toshiba e-STUDIO477S Service Manual page 13

3.2.25 Paper feed rollers (MPT) ..........................................................................3-23
3.2.26 Tray-Assy-Document / Cover-ADF-R .......................................................3-25
3.2.27 ADF-unit ...................................................................................................3-26
3.2.28 Sheet-document / Paper-weight-Assy / Spring-PW-ADF .........................3-27
3.2.29 Hinge-Assy-L / Hinge-Assy-R...................................................................3-28
3.2.30 ADF-Assy .................................................................................................3-28
3.2.31 Guide-Retard / Roller / Motor / Clutch / Solenoid/Photo-sensor...............3-29
3.2.32 Guide-Assy-Retard ...................................................................................3-30
3.2.33 Flatbed-Unit ..............................................................................................3-31
3.2.34 Frame-assy-FB .........................................................................................3-32
3.2.35 Antenna (for wireless model only) ............................................................3-33
3.2.36 Stapler (for stapler model only) ................................................................3-33
3.2.37 Finisher (for finisher model only) ..............................................................3-34
3.3 Check the Scanner Mech Level and SU FW version ...................................3-35
3.4 Oiling spots ...................................................................................................3-36
4. Maintenance Menu ................................................................4-1
4.1 Maintenance Utility ..........................................................................................4-2
4.2 Maintenance menu functions ..........................................................................4-2
4.2.1 Self-diagnostic mode ..................................................................................4-3
4.2.1.1 Operation panel ..................................................................................4-3
4.2.1.2 Ordinary self-diagnostic mode (level 1) ..............................................4-5
4.2.1.2.1 How to enter the self-diagnostic mode (level 1) ...........................4-5
4.2.1.2.2 How to exit the self-diagnostic mode ...........................................4-5
4.2.1.3 Switch scan test .................................................................................4-6
4.2.1.4 Motor clutch test .................................................................................4-8
4.2.1.5 Test print ...........................................................................................4-10
4.2.1.6 Consumable item counter display ....................................................4-13
4.2.1.7 Number of print copies counter display ............................................4-14
4.2.1.8 Switching between the Factory mode and the Shipping mode ........4-14
4.2.1.9 Self-diagnostic function setting .........................................................4-15
4.2.1.10 LED head serial number display ......................................................4-16
4.2.1.11 NVRAM parameter setting ...............................................................4-16
45387101TH Rev.1
4.2.2 How to enter the Scanner Maintenance Menu .........................................4-17
4.3 Setups upon completion of part replacement ...............................................4-19
4.3.1 Precautions when replacing the PU board ...............................................4-19
5. Periodic maintenance ............................................................5-1
5.1 Cleaning ..........................................................................................................5-2
5.2 How to clean the LED lens array .....................................................................5-3
5.3 How to clean the pickup rollers for MP Tray ....................................................5-5
5.4 How to clean the paper feed rollers for MP Tray .............................................5-6
5.5 How to clean the rollers in the ADF ................................................................5-8
5.6 How to clean the document rollers in the ADF ................................................5-9
5.7 How to clean the document glass .................................................................5-10
6. Troubleshooting and repair procedure ...................................6-1
6.1 Before starting the repair work ........................................................................6-2
6.2 Confirmation items before taking corrective action against abnormalities ......6-2
6.3 Precautions when taking corrective action against abnormality .....................6-2
6.4 Preparation for troubleshooting .......................................................................6-2
6.5 Troubleshooting method ..................................................................................6-3
6.5.1 Error code list .............................................................................................6-3
6.5.2 Printer error troubleshooting.......................................................................6-6
6.5.3 Scanner error troubleshooting ..................................................................6-12
6.5.4 Preparation for troubleshooting ................................................................6-14
6.5.5 Troubleshooting the abnormal images .....................................................6-47
6.6 Fuse check ....................................................................................................6-53
6.7 Paper cassette switches versus Paper size correspondence table ...............6-54
7. Connection diagrams .............................................................7-1
7.1 Resistance value check ..................................................................................7-2
7.2 Parts location ..................................................................................................7-5
Index
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