Technical Reference
Page 74
... Cover Cover Intervention 40021 Cover Open, X X X Required - Door Open Rear Door Intervention 40021 30 Invalid X Required - Cartridge Defective Ink CMYK* Cartridge * This message contains a subset of letters CMYK, where CMYK denotes Cyan, Magenta, Yellow, and Black cartridges, respectively. Open Cover Intervention 40021 Open Rear X X X Required - access cover Close Cover and Door and front door...
... Cover Cover Intervention 40021 Cover Open, X X X Required - Door Open Rear Door Intervention 40021 30 Invalid X Required - Cartridge Defective Ink CMYK* Cartridge * This message contains a subset of letters CMYK, where CMYK denotes Cyan, Magenta, Yellow, and Black cartridges, respectively. Open Cover Intervention 40021 Open Rear X X X Required - access cover Close Cover and Door and front door...