A digital image processing method is taught for detecting human irises in a digital image. TiCl4 and at least one silane are first fed to the chamber at or above a first volumetric ratio of TiCl4 to silane for a first period of time. The Wireless LAN includes multiple STAs, mobile or Stationary, airlinked to an access point as a Basic Service Set. The controller calculates a first hand-shake angle caused by yaw, a second hand-shake angle caused by pitch, and a third hand-shake angle caused by roll for the anti-shake operation. The printer further includes a local processor for selectively supplying the computer with the latest version of the printer driver routine from the local memory. Each of the springs is telescopically disposed on one of the projecting portions.