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 Duplexer paper path Output roller Side misregistration sensor Re-pickup roller Intermediate output roller Duplex unit Duplex reverse roller Duplex re-pickup roller Duplex paper path Simplex paper path Figure 1-59 Duplexer signal flow 76 Chapter 1 Theory of operation ENWW +24V DC controller Duplex unit Motor Fan Clutch Duplex controller Photointerrupter Side misregistration sensor LED Photoreceiver sensor NVRAM