Kyocera KM-2560 2560/3060 Operation Guide (Advanced Edition) - Page 302

If paper jams occur, load fewer envelopes at once. To prevent paper jams when printing onto multiple envelopes, do not allow more than ten envelopes remain in the output tray at once. Thick Paper Before loading thick paper in the Multi Purpose tray, fan it and align the edges. Some thick paper may still have rough edges developed by a paper cutter on the back side. Remove any such rough edges just as with Hagaki by placing the paper on a flat surface and rubbing the edges gently a few times with a ruler. Printing onto paper with rough edges may cause jams. NOTE: If the paper is not supplied correctly even after it is smoothed, load the paper in the Multi Purpose tray with the leading edge raised a few millimeters as shown in the figure. Label Be sure to feed labels from the Multi Purpose tray. For selecting labels, use extreme care so that the adhesive may not come in direct contact with any part of the machine and that the labels are not easily peeled from the carrier sheet. Adhesives that stick to the drum or rollers and peeled labels remaining in the machine may cause a failure. When printing onto labels, you must be liable for the print quality and possible trouble. Labels consist of three layers as shown in the illustration. The adhesive layer contains materials that are easily affected by the force applied in the machine. The carrier sheet bears the top sheet until the label is used. This composition of labels may cause more problems. Top sheet Adhesive layer Carrier sheet The label surface must be covered completely with the top sheet. Gaps between labels may cause peeling of labels, resulting in a serious failure. Appendix-8 ADVANCED OPERATION GUIDE