Oki C941dn C911dn/C931dn/C941dn Troubleshooting Guide - Page 6

Contents Manual Configuration 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 - 6 -