User Guide

Duplexer reverse-and-feed operation
The duplexer reverses the feed and delivery rollers in the product to print on both sides. The paper that
passed through the fuser unit reverses its feeding direction and is fed to the duplexer. The duplexer
feeds the paper and performs horizontal registration to align the starting position of the main scan for
the second-side print. Then, the paper is fed into the product engine unit again.
Figure 1-64 Duplexer reverse-and-feed operation
M1
CL1
SR1
SR2
Side misregistration sensor
Reverse position
Re-pickup waiting position
Intermediate
output roller
Fuser output sensor
Output roller
Table 1-22 Duplexer reverse-and-feed components
Component Signal
M1 Duplex feed motor DUPLEX FEED MOTOR CONTROL signal
CL1 Duplex feed clutch DUPLEX FEED CLUTCH signal
SR1 Duplex reverse sensor DUPLEX FEED signal
SR2 Duplex re-pickup sensor DUPLEX RE-PICKUP signal
88 Chapter 1 Theory of operation ENWW