In the step S1201, a judgment is made as to whether a document {HEAD ~ data} received from {TAIL ~ other equipment}, e.g., the computer 30, is a bitmap image file 
In the step S1201 , a judgment is made as to whether a document { HEAD ~ data } received from { TAIL ~ other equipment } , e.g. , the computer 30 , is a bitmap image file
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH