Oki C710 Maintenance Manual

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Contents

43856301TH Rev.3 5 /Oki Data CONFIDENTIAL5. Maintenance Menu ................................................................ 915.1 System maintenance menu (for maintenance engineer) ................................... 925.2 Maintenance Utilities .......................................................................................... 935.3 Maintenance menu functions.............................................................................. 955.3.1 Self-diagnostic mode .................................................................................. 955.3.1.1 Operation panel ................................................................................... 955.3.1.2 Ordinary self-diagnostic mode (level 1) ............................................... 975.3.1.2.1 How to enter the self-diagnostic mode (level 1) ............................ 975.3.1.2.2 How to exit the self-diagnostic mode ............................................. 975.3.1.3 Switch scan test ................................................................................... 985.3.1.4 Motor clutch test ................................................................................... 1005.3.1.5 Test print ............................................................................................... 1025.3.1.6 Color registration correction test ........................................................ 1065.3.1.7 Density correction test ....................................................................... 1075.3.1.8 Consumable item counter display ...................................................... 1095.3.1.9 Number of print copies counter display ............................................. 1105.3.1.10 Switching between the Factory mode and the Shipping mode .......... 1105.3.1.11 Self-diagnostic function setting .......................................................... 1115.3.1.12 LED head serial number display ....................................................... 1125.3.1.13 NVRAM parameter setting ............................................................... 1125.3.2 Various prints with the printer as a standalone unit .................................. 1125.3.3 Functions of keys at power on .................................................................. 1135.4 Setups upon completion of part replacement ................................................... 1145.4.1 Precautions when replacing the engine control board................................. 1145.4.2 EEPROM setting upon completion of CU board ............................................replacement .......................................................................................................... 1155.5 Density control manual setting ......................................................................... 1165.6 Printer boot menu list........................................................................................ 1176. Periodic Maintenance ......................................................... 1186.1 Cleaning ........................................................................................................... 1196.2 How to clean the LED lens array ...................................................................... 1206.3 How to clean the pickup roller .......................................................................... 1226.4 How to clean inside of printer ........................................................................... 1237. Troubleshooting and repair procedure ............................. 1257.1 Before starting the repair work ......................................................................... 1267.2 Confirmation items before taking corrective action against abnormalities ....... 1267.3 Precautions when taking corrective action against abnormality ....................... 1267.4 Preparation for troubleshooting ........................................................................ 1267.5 Troubleshooting method ................................................................................... 1277.5.1 LCD message list ...................................................................................... 1277.5.2 Preparation for troubleshooting ................................................................. 1487.5.3 Troubleshooting the abnormal images ...................................................... 1807.5.4 Network troubleshooting ........................................................................... 1877.5.4.1 Connection error occurs with the Web browser ................................. 1877.5.4.2 Print operation is not possible............................................................ 1937.5.4.3 Cannot create Certificate ................................................................... 1947.5.4.4 Installation of Certificate is not possible............................................. 1947.5.4.5 Other questionnaires ......................................................................... 1967.5.4.6 Restrictions when using Internet Explore 7 ....................................... 1987.6 Fuse check ....................................................................................................... 1997.7 Paper cassette switches versus Paper size correspondence table .................. 2007.8 Data protection kit-A1 ....................................................................................... 2017.8.1 Data protection kit-A1 (DPK-Al) overview ................................................. 2018. Connection diagrams..........................................................2058.1 Resistance value check .................................................................................... 2068.2 Parts location .................................................................................................... 2108.3 F/W version number ......................................................................................... 2218.3.1 ROM control number ................................................................................. 2218.3.2 ROM version check and display ................................................................ 2228.3.3 PCB Maintenance Indication Stamp ......................................................... 222