HP Color LaserJet Pro MFP M479fdw

With the printer on and in the Ready state.

Simplex models

1. Open and close front door.
2. Open and close front door again within 1.5 seconds.
3. Repeat step 1 and step 2 four times and one sheet of the test pattern prints on the front of the page.

Duplex models

1. Open and close front door.
2. Open and close front door again within 1.5 seconds.
3. Repeat step 1 and step 2 five times and one sheet of the test pattern prints on both front and back of the page.