The best-known non-impact printers are the inkjet printer, of which several makes of low-cost color printers are an example, and the laser printer. The inkjet sprays ink from an ink cartridge at very close range to the paper as it rolls by.
Here is an easy way to find your draw length, simply stand upright with your hands stretched out (hold naturally, do not hyperextend) and measure your arm span from fingertip to fingertip. Take this measurement in inches and divide by 2.5. This will give a good working draw length for your bow.
Determine the length of the bowstring. For a recurve bow, the string should be 3 1/2 inches shorter than the full length of your bow. The string length for a compound bow should be listed in the literature from the manufacturer, or it may be found written on one of the bow limbs. Calculate the number of strands in the string.