said second end side lock portion is inserted and fitted into the second end side guide member provided in a side plate serving as the second end side main body frame in {HEAD ~ the direction} orthogonal to {TAIL ~ the longitudinal direction} of said cartridge 
said second end side lock portion is inserted and fitted into the second end side guide member provided in a side plate serving as the second end side main body frame in { HEAD ~ the direction } orthogonal to { TAIL ~ the longitudinal direction } of said cartridge
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH