How do I make 20 copies at once?

Load the same number of sheets of A4-size plain paper that you want to copy, place the originals on the scanner glass, then press the color or monochrome copy button while holding down the Stop button. Note that if you load fewer than 20 sheets, an error will occur when paper runs out and copying will stop — load more paper and press the copy button to continue, or press Stop to finish. (Page 44)