Canon BJC-85 User Manual page 220

Check the BJ cartridge by printing a Nozzle Check Pattern
Use the printer operation panel to print a Nozzle Check Pattern.
Printing a Nozzle Check Pattern
If the Nozzle Check Pattern does not print ...
The printer may be damaged. Call the Canon Customer Care Center.
If the Nozzle Check Pattern prints normally ...
There may be a problem in the software application, or the interface cable
could be damaged or not plugged in correctly. Execute a test print.
Try a test print
Use the printer operation panel to start a Demonstration test print and check the results.
Printing the Test Print
If the test print does not execute ...
The interface cable could be damaged. Replace it with the new interface
cable.
Before You Call For Service
Printing the Test Print
Problems and Solutions
Troubleshooting 219