An information processing apparatus serves as a host unit for communicating to {HEAD ~ a plurality} of {TAIL ~ printing apparatuses} via a network 
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An information processing apparatus serves as a host unit for communicating to { HEAD ~ a plurality } of { TAIL ~ printing apparatuses } via a network
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH