• Code: 091-928
• Description: IOT M Drum Detached Magenta
• Causes:
• Remedy: Reinsert the Magenta Imaging Unit.

• Code: 091-929
• Description: IOT C Drum Detached Cyan
• Causes:
• Remedy: Reinsert the Cyan Imaging Unit.

• Code: 091-935
• Description: IOT Drum Cartridge Kit Life Over. Detect Drum Cartridge Kit Life Over
• Causes:
• Remedy: Replace the Imaging Unit.

• Code: 091-960
• Description: IOT X CRUM ID Error Detect Y Drum CRUM ID Warning
• Causes: • Yellow Imaging Unit (PL8.1.2)
• Remedy: 1 Check the Imaging Unit installation Is an Imaging Unit other than a Yellow Imaging Unit installed? Or, is the installed Imaging Unit for another printer? Install the right Yellow Imaging Unit. Reinstall the Yellow Imaging Unit.

• Code: 091-961
• Description: IOT X CRUM ID Error Detect M Drum CRUM ID Warning
• Causes: • Magenta Imaging Unit (PL8.1.3)
• Remedy: 1 Check the Imaging Unit installation Is an Imaging Unit other than a Magenta Imaging Unit installed? Or, is the installed Imaging Unit for another printer? Install the right Magenta Imaging Unit. Reinstall the Magenta Imaging Unit.

• Code: 091-962
• Description: IOT X CRUM ID Error Detect C Drum CRUM ID Warning
• Causes: • Cyan Imaging Unit (PL8.1.3)
• Remedy: 1 Check the Imaging Unit installation Is an Imaging Unit other than a Cyan Imaging Unit installed? Or, is the installed Imaging Unit for another printer? Install the right Cyan Imaging Unit. Reinstall the Cyan Imaging Unit.

• Code: 091-963
• Description: IOT X CRUM ID Error Detect K Drum CRUM ID Warning
• Causes: • Black Imaging Unit (PL8.1.5)
• Remedy: 1 Check the Imaging Unit installation Is an Imaging Unit other than a Black Imaging Unit installed? Or, is the installed Imaging Unit for another printer? Install the right Black Imaging Unit. Reinstall the Black Imaging Unit.

• Code: 092-310
• Description: IOT CTD Sensor Error Detect CTD Sensor Error
• Causes: • Yellow Imaging Unit (PL8.1.2)
• Remedy: 1 Check the Imaging Unit installation Is an Imaging Unit other than a Yellow Imaging Unit installed? Or, is the installed Imaging Unit for another printer? Install the right Yellow Imaging Unit. Reinstall the Yellow Imaging Unit.