Oki C911dn

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Contents
Manual Conguration ........................................................................... 2
Reading the Manual ............................................................................. 3
Symbols .................................................................................................................. 3
Keys, Buttons, and Symbols....................................................................................3
Illustrations ............................................................................................................ 4
Screens...................................................................................................................4
Inscriptions ............................................................................................................ 5
1 Troubleshooting ................................................................... 9
Troubleshooting solutions procedure ................................................. 10
Paper jams ........................................................................................ 11
Checking messages (if a paper jam occurs) ..........................................................11
Removing jammed paper ...................................................................................... 14
When a message related to paper appears ........................................ 31
When a message related to replacement of consumables appears ..... 33
When some other message appears ................................................... 35
Printing Troubles ............................................................................... 40
Unable to print ..................................................................................................... 40
Printer driver malfunctions ................................................................................... 44
Print quality is poor .............................................................................................. 47
Paper feed is poor ................................................................................................ 50
2 Maintenance ...................................................................... 51
Replacing consumables and maintenance unit ................................... 52
Consumables and maintenance unit service life ...................................................52
When the replacement period is approaching ....................................................... 53
Replacing toner cartridges.................................................................................... 54
Replacing Image Drums ....................................................................................... 57
Replacing belt units and transfer roller units ........................................................60
Replacing fuser units ............................................................................................ 65
Replacing waste toner boxes ................................................................................ 67
Replacing paper feed rollers ................................................................................. 69
Maintenance of the device ................................................................. 77
Cleaning printer surfaces ...................................................................................... 77
Cleaning LED heads .............................................................................................. 77
Cleaning feed rollers ............................................................................................. 83