Duplexer Reverse And Feed Operation Sequence; Table 1-22 Duplexer Reverse And Feed Components; Figure 1-62 Duplexer Reverse And Feed Operation - HP LaserJet Enterprise 700 M712 series Handbuch Zur Fehlerbehebung

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 1-62
Intermediate
output roller
Fuser output sensor
Table 1-22
Component
M1
CL1
SR1
SR2

Duplexer reverse and feed operation sequence

The operational sequence of the reverse-and-feed operation is as follows:
1. The paper printed on the first side passes through the fuser.
2. The DC controller feeds the paper until the trailing edge of paper reaches the reverse position after
the fuser output sensor detects the trailing edge.
3.
The duplex controller reverses the output roller and the intermediate output roller to feed the paper
to the duplexer from the reverse position.
4. The duplex controller detects the image starting position according to the side misregistration
sensor and feeds the paper to the re-pickup waiting position.
5.
The duplex controller stops the paper temporarily at the re-pickup waiting position when the paper
is standard size but shorter than Letter-R. It feeds the paper to the product engine again if a print
ENWW
Duplexer reverse and feed operation
Output roller
M1
Duplexer reverse and feed components
Duplex feed motor
Duplex feed clutch
Duplex reverse sensor
Duplex re-pickup sensor
Reverse position
Re-pickup waiting position
SR1
SR2
CL1
Side misregistration sensor
Signal
DUPLEX FEED MOTOR CONTROL signal
DUPLEX FEED CLUTCH signal
DUPLEX FEED signal
DUPLEX RE-PICKUP signal
Duplexer
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