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Error-Code What you can do
075-910 Make sure that the multipurpose feeder (MPF) is fully installed.
077-300 Close the front cover.
077-301 Close the right side cover.
077-302 Close the rear cover.
091-911 Remove the used waste toner box, and install a new toner box. For more information about replacing the
waste toner box, see "Replacing the Waste Toner Box."
091-914 Reinsert the black drum cartridge. If the message remains, replace the cartridge. For more information
about reinserting the drum cartridge, see "Replacing the Drum Cartridges."
091-917 Reinsert the yellow drum cartridge. If the message remains, replace the cartridge. For more information
about reinserting the drum cartridge, see "Replacing the Drum Cartridges."
091-918 Reinsert the magenta drum cartridge. If the message remains, replace the cartridge. For more information
about reinserting the drum cartridge, see "Replacing the Drum Cartridges."
091-919 Reinsert the cyan drum cartridge. If the message remains, replace the cartridge. For more information about
reinserting the drum cartridge, see "Replacing the Drum Cartridges."
091-921 Make sure that the black drum cartridge is fully installed. For more information about installing the drum
cartridge, see "Replacing the Drum Cartridges."
091-922 Make sure that the yellow drum cartridge is fully installed. For more information about installing the drum
cartridge, see "Replacing the Drum Cartridges."
091-923 Make sure that the magenta drum cartridge is fully installed. For more information about installing the
drum cartridge, see "Replacing the Drum Cartridges."
091-924 Make sure that the cyan drum cartridge is fully installed. For more information about installing the drum
cartridge, see "Replacing the Drum Cartridges."
091-931 Remove the used black drum cartridge, and install a new cartridge. For more information about replacing
the drum cartridge, see "Replacing the Drum Cartridges."
091-932 Remove the used yellow drum cartridge, and install a new cartridge. For more information about replacing
the drum cartridge, see "Replacing the Drum Cartridges."
091-933 Remove the used magenta drum cartridge, and install a new cartridge. For more information about replacing
the drum cartridge, see "Replacing the Drum Cartridges."
091-934 Remove the used cyan drum cartridge, and install a new cartridge. For more information about replacing the
drum cartridge, see "Replacing the Drum Cartridges."
091-942 Reinsert the black drum cartridge. If the message remains, replace the cartridge. For more information
about replacing the drum cartridge, see "Replacing the Drum Cartridges."
091-943 Reinsert the yellow drum cartridge. If the message remains, replace the cartridge. For more information
about replacing the drum cartridge, see "Replacing the Drum Cartridges."
091-944 Reinsert the magenta drum cartridge. If the message remains, replace the cartridge. For more information
about replacing the drum cartridge, see "Replacing the Drum Cartridges."
091-945 Reinsert the cyan drum cartridge. If the message remains, replace the cartridge. For more information about
replacing the drum cartridge, see "Replacing the Drum Cartridges."
091-960 Remove the unsupported yellow drum cartridge, and install a supported drum cartridge. For more
information about installing the drum cartridge, see "Replacing the Drum Cartridges."
091-961 Remove the unsupported magenta drum cartridge, and install a supported drum cartridge. For more
information about installing the drum cartridge, see "Replacing the Drum Cartridges."
091-962 Remove the unsupported cyan drum cartridge, and install a supported drum cartridge. For more
information about installing the drum cartridge, see "Replacing the Drum Cartridges."
091-963 Remove the unsupported black drum cartridge, and install a supported drum cartridge. For more
information about installing the drum cartridge, see "Replacing the Drum Cartridges."
Understanding Printer Messages
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