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11. OTHER MECHANISMS
11-1. Duplex Unit (Option)
(1) Drive
• The drive for the Duplex Unit works as follows. The paper having a printed image on its
one side is temporarily fed toward the Exit Tray and, as soon as the trailing edge of the
paper moves past the guide plate before the Exit Roller, the Exit Roller is turned back-
ward so that the paper is fed into the Duplex Unit.
• The drive for the Exit Roller is disconnected from the printer when the Duplex Unit is
mounted on the printer and, instead, it is provided by the Duplex Unit Turnover Motor of
the Duplex Unit.
• The Transport Rollers of the Duplex Unit are driven by the Duplex Unit Transport Motor.
• The paper is transported to the printer by the Transport Rollers.
Duplex Unit Turnover Motor (M8)
Duplex Unit Transport Motor (M7)
Transport Rollers
Duplex Unit Transport Sensor (PC17)
4131M021AA