Canon i-SENSYS MF8550Cdw

The engine test print is to check normal operation of the device. Print the engine test chart in the following steps.

• MF8500 series

1. Detach the right cover.
2. Turn on the device on standby to press the test print switch [1] on the right side of the device.
   
3. The engine test chart is printed in the horizontal line patterns on a sheet as shown below.

• MF8200 series

1. Leave the front cover(1) and the rear cover(2) open to turn on the power.
   
2. Close the Front Cover (1) and the Rear Cover (2) within 5 seconds since the Control Panel lights up white.
3. The engine test chart is printed in the horizontal line patterns on a sheet as shown below.