This is an advanced operation manual for the TASKalfa 620/820 copier, which introduces the copier's various copying functions, including automatic paper selection, displacement mode, multiple-in-one mode, binding edge mode, centering originals, trimming, inserting page numbers, cover mode, watermark overlay, booklet making, book copying, annotation blank mode, continuous scanning, test copy mode, repeat copy, slide film underlay, automatic image rotation, economy print mode, reverse copy, mirroring, mixed originals mode, multi-page table and program copy.