Duplexer; Figure 1-58 Duplexer Paper Path; Figure 1-59 Duplexer Signal Flow - HP LaserJet Enterprise 700 M712 series Handbuch Zur Fehlerbehebung

Duplexer

The optional duplexer is installed in the left side of the product. The duplexer reverses the output roller
and intermediate output roller in the product engine, reverses and feeds the paper passed through the
fuser. Then it detects side misregistration to adjust the starting position of the scanning direction for the
second side of paper according to the command from the formatter and feeds it to the product engine.
Figure 1-58
Output roller
Intermediate output roller
Duplex unit
Figure 1-59
DC controller
76 Chapter 1 Theory of operation
Duplexer paper path
Simplex paper path
Duplex paper path
Duplexer signal flow
+24V
Duplex controller
Side misregistration sensor
Duplex re-pickup roller
Duplex reverse roller
Re-pickup roller
Duplex unit
Motor
Fan
Clutch
Photointerrupter
Side misregistration sensor
LED
Photoreceiver
sensor
NVRAM
ENWW