Xerox DocuPrint N2025 Service Manual page 313

The Figure below is a perspective view that shows the drive power transmission through the
gears of the Duplex Assembly. Figure 5
Figure 5 Drive Power Transmission through Duplex Assembly Gears
Duplex Assembly Main Component Function
The function of the major components of the optional Duplex Assembly is described here. Fig-
ure 6 & Figure 7
Duplex and Exit
Duplex PWB - Drives the Duplex Motor Assembly and the Exit Motor Assembly according to
the control signals from the Print Engine Controller PWB through the Duplex Interface PWB.
The Duplex PWB also relays the signals from the sensors and switches connected to it to the
Duplex Interface PWB.
Duplex Sensor Assembly - Detects the paper between the Duplex Roll Assembly (Upper) and
the Duplex Roll Assembly (Lower) in the Duplex Assembly.
Duplex Motor Assembly - Generates the drive power to transfer the paper to the Metal Regis-
tration Roll and Rubber Registration Roll. This motor rotates only in the clockwise direction.
Initial Issue
DocuPrint N2025/N2825
Duplex Roll Assembly (Upper), Duplex Roll Assembly (Lower) - Re-feed the paper printed
on the one side into the printer through the Duplex Assembly to print on the other side.
Motor Assembly Exit - Generates the drive power to retrieve the paper from the Exit Assem-
bly for the duplex printing and deliver the paper toward the Duplex Roll Assembly (Upper). Dur-
ing this process, the Motor rotates in clockwise. After the completion of the duplex printing, the
Motor rotates in counter clockwise and generates the power to discharge the duplex printed
paper.
Figure 6 Duplex Assembly Components
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General Procedures / Information
GP 5.21