The CPM is a special coated toner transfer paper for smooth surfaces. One-step process. New CPM version for better 3D moulding on uneven surfaces - 110g base. Most applications used in conjunction with A-Pad or SoftPad applicators. CPM Transfer Paper has a direction of feed through your laser printer!! If your printer model is an A4 size machine it will feed on the short edge of the page - so the correct paper for your machine is CPM A4R. If your printer model is an A3 size machine it will feed on the long edge of the page - so the correct paper for your machine is CPM A4. Feeding CPM through your machine against the direction of the feed arrows will result in jamming your fuser unit.