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.
When you have the wheel timing close, make your adjustments by twisting the bus cable in 1/2 turn increments. Note that shortening bus cables will slightly increase the draw length of the bow. If the draw length is getting to long, adjust wheel timing by untwisting the opposite bus cable described above. It was necessary to shorten the bus cable connected to the bottom limb by 5 1/2 turns to bring these wheels into alignment.