IntroductionFinisher-AK1/Saddle Finisher-AK2/Puncher Unit-BT1/BU1Finisher-AK1 and Saddle Finisher-AK2 can process jobs with the following settings:• Sort by set• Sort by page• Offset stacking• Stapling• High-volume mode• Saddle stitching (only when Saddle Finisher-AK2 is installed)• Saddle folding (only when Saddle Finisher-AK2 is installed)• Punching (only when Puncher Unit-BT1/BU1 is installed)NOTE• If you use paper weights lower than 64 g/m² (17 lb bond) for covers, the paper can creasewhen saddle-stitched.• If you use paper weights lower than 64 g/m² (17 lb bond) for covers when the Booklet Trimmeris installed, the paper may be trimmed with uneven edges.• If you use small paper, the paper may be saddle stitched with uneven edges. In this case,check the width of the paper.• If you use small paper, the paper may be stapled (corner/double) with uneven edges. In thiscase, check the width of the paper.• If you use small paper, and the Booklet Trimmer is used, the paper may be trimmed withuneven edges. In this case, check the width of the paper.• If you create a saddle-stitched booklet using coated paper or inserted sheets for the cover, theimage printed on the page after the cover may stick to the back of the cover, or back of theinserted sheets, depending on the type of coated paper you are using.• If you create a saddle-stitched booklet using coated paper for the cover, cracks may appeararound the fold of the cover, depending on the type of coated paper you are using.• If you use staple (corner / double) multiple copy sets using coated paper for the cover, thestaples of copy sets may dirty the surface of the cover of copy sets that have already beenoutput, depending on the type of coated paper you are using.Introduction10 Chapter 2 - Parts and their functions Canon Finisher-AK1/Saddle Finisher-AK2/Puncher Unit-BT1/BU1Operation Guide Finisher-AK1, Saddle Finisher-AK2, Puncher Unit-BT1-BU1: VarioPrint (VP) 110, VP120, VP135 - Edition 2013-06