scan view of the scanning device 100 via the lens 14 the photoelectric sensor 16 converts sensing light intensity into analog induced signals the image sensing circuit 106 converts the analog induced signals into digital image signals and outputs them to the system controller 112 after the system controller 112 processes the digital image signals will be transformed into complete image information of the scanned object finally the generated image information will be stored in the storage device 120 the memory 114 is utilized to temporarily store information that the system controller 112 requires in operation referring to fig1 and fig2 fig2 demonstrates a flow chart of a method of printing out the scanning outcome of the scanning device 100 via the printing device 140 according to the present invention the method comprises the following steps step 200 the scanning device 100 scans one object to generate some image information and store the image information into the storage device 120 step 202 the print client 116 detects if any inquiry signal comes from the printing device 140 step 204 when the print client 116 detects an inquiry signal coming from the printing device 140 the print client 116 of the scanning device 100 will resend a printing initiated signal step 206 when the printing device 140 receives the printing initial signal the storing client 144 of the printing device 140 will request the image information from the scanning device 100 step 208 the scanning device 100 transmits the image information stored in the storage device 120 to the printing device.