The problem is the printer does not pick paper from the tray

If the printer does not select paper from the tray, when requested to do so by the software, and there is paper loaded in the tray...

• Remove the tray from the printer.
• Make sure that there are no more than 100 sheets of paper in the tray.
• A newly opened packet of paper may need 'breaking', that is, the pages may need to be separated.
• Make sure that the paper is correctly placed in the tray, tight against the far right corner of the tray.
• Make sure that the two width and depth adjusters are up against the block of paper.
• Place the tray back into the printer, making sure that it is fully inserted.