Duplexer fan control The duplex unit has one fan for preventing the temperature from rising in the duplex unit. The duplex controller determines if the duplex fan has failed and notifies the formatter through the DC controller when the fan fails to operate for a specified time during start-up. Figure 1-61 Duplexer fan Duplex fan Table 1-21 Duplexer fan Duplexer fan failure detection The duplex controller determines if the duplex fan has failed and notifies the formatter when the fan locks for a specified time during start-up. 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 78 Chapter 1 Theory of operation ENWW Fan Cooling area Type Speed FM1 Duplex fan Duplexer inside Exhaust Full