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