Canon PIXMA iP2850 - Manual (Page 64)

Printing the Nozzle Check Pattern
Print the nozzle check pattern to determine whether the ink ejects properly from the print head nozzle.
Note
• If the remaining ink level is low, the nozzle check pattern will not be printed correctly. Replace the FINE
cartridge whose ink is low.
You need to prepare: a sheet of A4 or Letter-sized plain paper
1. Make sure that the power is turned on.
2. Load a sheet of A4 or Letter-sized plain paper in the rear tray.
3. Pull out the paper output tray and the output tray extension.
4. Hold down the ON/RESUME button until the POWER lamp flashes green twice, then
release it immediately.
The nozzle check pattern will be printed.
Do not perform any other operations until the printer completes the printing of the nozzle check pattern.
5. Examine the nozzle check pattern .
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