Oce CS2436 User Manual page 729

Troubleshooting (CS2436-11)
11. 9. 3.
Troubleshooting > Other problems >
Messages advising to check the maintenance cartridge are
not cleared
Cause
The printer has not detected the
new Maintenance Cartridge that
was used to replace the old one.
Corrective Action
Remove the new Maintenance
Cartridge you have just installed
and insert it again firmly.
Restart the printer.