Check that the paper is flat in the tray and below the maximum paper mark. 3 Re-install the paper cassette into the printer. 4 Step 3 Install the toner cartridge. Step 1 Insert the CD-ROM into the CD-ROM drive. Step 4 Load paper in the paper cassette. 2 While pressing the paper guide release lever, slide the adjusters to fit the paper size. Check that they fit correctly into the slots. Note: For Legal size paper, press the universal guide release button and pull out the rear of the paper cassett