Oki MC760 Maintenance Manual

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Contents

Oki MC760 Maintenance Manual Manual pdf 6 page image

45376001TH Rev.1 5 /Oki Data CONFIDENTIAL4.2.15 Board MFH ................................................................................................. 824.2.16 Hopping motor/ Fuse motor ........................................................................ 834.2.17 Guide eject Assy/ Color regist Assy/ Board-IBY ......................................... 844.2.18 FAN(Fuser) / Belt motor/ High-voltage board/ Cover open switch .............. 854.2.19 MPT Assy ................................................................................................... 854.2.20 Cover Assy front/ Board-RSF/MPT hopping roller/ Frame Assy separator/Feeder Assy regist ...................................................................................... 864.2.21 Plate-Driver/ Shaft-Liftup/ Hopping cover.................................................... 874.2.22 Plate-Assy-Side R/ Plate-Assy-Side L ........................................................ 884.2.23 Feed roller ................................................................................................... 884.2.24 Eject sensor/Micro-SW ............................................................................... 894.2.25 Antenna (for wireless model only) ............................................................... 894.2.26 Finisher (for finisher model only) ................................................................. 904.2.27 Stapler (for stapler model only)................................................................... 914.2.28 Tray-Assy-Document/Cover-ADF-R ............................................................ 924.2.29 ADF-unit ..................................................................................................... 934.2.30 Sheet-document / Paper-weight-Assy / Spring-PW-ADF............................ 944.2.31 Hinge-Assy-L / Hinge-Assy-R ..................................................................... 954.2.32 ADF-Assy ................................................................................................... 954.2.33 Guide-Retard / Roller / Motor / Clutch / Solenoid ....................................... 964.2.34 Guide-Assy-Retard ..................................................................................... 974.2.35 Flatbed-Unit ................................................................................................ 974.2.36 Frame-assy-FB ........................................................................................... 984.3 Oiling spots ......................................................................................................... 995. Maintenance Menu .............................................................. 1105.1 System maintenance menu (for maintenance engineer) ................................. 1115.2 Maintenance menu functions............................................................................ 1125.2.1 Self-diagnostic mode ................................................................................ 1125.2.1.1 Operation panel ................................................................................. 1125.2.1.2 Ordinary self-diagnostic mode (level 1) ............................................. 1145.2.1.3 Switch scan test ................................................................................. 1155.2.1.4 Motor clutch test ................................................................................ 1175.2.1.5 Test print ............................................................................................ 1195.2.1.6 Color registration correction test ........................................................ 1255.2.1.7 Density correction test ....................................................................... 1265.2.1.8 Consumable item counter display ...................................................... 1285.2.1.9 Number of print copies counter display ............................................. 1295.2.1.10 Switching between the Factory mode and the Shipping mode .......... 1295.2.1.11 Self-diagnostic function setting .......................................................... 1305.2.1.12 LED head serial number display ....................................................... 1315.2.1.13 NVRAM parameter setting ................................................................ 1315.2.2 Various prints with the printer as a standalone unit .................................. 1315.2.3 Functions of keys at power on .................................................................. 1325.2.4 How to enter the Scanner Maintenance Menu .......................................... 1335.3 Setups upon completion of part replacement ................................................... 1355.3.1 Precautions when replacing the PU board................................................ 1355.4 Density control manual setting ......................................................................... 1376. Periodic Maintenance.......................................................... 1386.1 Cleaning ........................................................................................................... 1396.2 How to clean the LED lens array ...................................................................... 1406.3 How to clean the pickup roller .......................................................................... 1426.4 How to clean the paper feed rollers for MP Tray ............................................... 1436.5 How to clean the rollers in the ADF .................................................................. 1446.6 How to clean the document glass..................................................................... 1456.7 How to clean inside of MFP .............................................................................. 1467. Troubleshooting and repair procedure ............................. 1487.1 Before starting the repair work ......................................................................... 1497.2 Confirmation items before taking corrective action against abnormalities ....... 1497.3 Precautions when taking corrective action against abnormality ....................... 1497.4 Preparation for troubleshooting ........................................................................ 1497.5 Troubleshooting method ................................................................................... 1507.5.1 Error code list ............................................................................................ 1507.5.2 Printer error troubleshooting ..................................................................... 1537.5.3 Scanner error troubleshooting .................................................................. 1597.5.4 Preparation for troubleshooting ................................................................. 1617.5.5 Troubleshooting the abnormal images ...................................................... 1937.6 Fuse check ....................................................................................................... 2007.7 Paper cassette switches versus Paper size correspondence table .................. 2018. Connection diagrams ..........................................................2028.1 Resistance value check .................................................................................... 2038.2 Parts location .................................................................................................... 207