Close the ADF cover correctly - MP750 / MP780
If the ADF cover is not shut properly, the message [CHECK DOCUMENT] will be displayed on the LCD when attempting to copy. Do the following:
- Open the ADF cover.
![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP780/MP780OpenADFCover.gif)
- Make sure the paper release lever (green) is pushed all the way down
![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP780/MP780GreenButton.JPG)
- Close the cover