http://support.ricoh.com/bb_v1oi/pub_e/oi/0001033/0001033740/VG0918652/G0918652.pdf
http://support.ricoh.com/bb_v1oi/pub_e/oi/0001033/0001033739/VG0918653/G0918653.pdf
http://support.ricoh.com/bb_v1oi/pub_e/oi/0001033/0001033738/VG0918655/G0918655.pdf
http://support.ricoh.com/bb_v1oi/pub_e/oi/0001033/0001033737/VG0918654/G0918654.pdf
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