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.
Find the maker of the compound bow and email the picture or serial number to the company, asking for a confirmation on the bow's year of production. Lists of compound bow makers are found at websites such as Hunter's Friend. Check a Bear bow (the name of the maker) for a series of different criteria to determine its age.