Xerox 6180N Generic MICR Fundamentals Guide  - Page 34

Paper facts Requirements for background reflectance are discussed in chapter 4, "Document design." Curl All papers curl to some degree. Excessive curl is one of the most common causes of paper jams. Selecting a low-curl paper with the proper moisture content makes a significant difference in the productivity of your system. Refer to the operator guide for your printer for paper curl recommendations specific to your printer. Because the front and back surfaces of the paper, as determined during the paper making process, differ slightly in their makeup, one side is preferred as the side to image first. If you are using a quality 24 pound/90 gsm paper intended for xerographic purposes, the ream wrapper is marked with an arrow that indicates the preferred printing side. Print on this side for onesided printing. For two-sided printing, print on this side first (unless instructed otherwise in the operator guide for your laser printer). How you load preprinted paper is determined by the preprinting. Preprinted forms should be produced so that their curl is compatible with the requirements in your MICR printer operator guide. Perforation When you use perforated paper, your objective is to have a smooth, free-feeding sheet that retains sufficient beam strength to prevent sheet fold-over, buckling, or jams. If you use preperforated forms, consider the following factors: • Use 24 pound/90 gsm paper. • Use a perforation that lets the sheets retain as much stiffness as possible. Reduced stiffness may result in jamming and paper mutilation. • Perforations should be nine per inch. • All holes should be the same size. • The ratio of holes to paper (tie size) should be less than or equal to 1:1. In other words, the tie size should be at least as large as the hole size. 3-6 Generic MICR Fundamentals Guide