Canon imagePROGRAF iPF650 - Manual (Page 846)

Maintenance cartridge problem.
Cause Corrective Action
An incompatible or used Maintenance
Cartridge has been installed. Install an unused Maintenance Cartridge specified for use with the printer.
(See "Replacing the Maintenance Cartridge.")
→P.750
Error Message > Messages regarding the maintenance cartridge >
Maintenance cartridge problem. iPF650
12
830