Duplexing reverse and feed control

The duplexing reverse procedure pulls the paper into the duplexing unit after it exits the fuser. The duplexing feed procedure moves the paper through the duplexer so it can enter the product paper path to print the second side of the page.

1.After the first side has printed, the duplexing flapper solenoid opens, which creates a paper path into the duplexing-reverse unit.

2.After the paper has fully entered the duplexing-reverse unit, the duplexing-reverse motor reverses and directs the paper into the duplexing-feed unit.

3.The duplexing re-pickup motor and duplexing feed motor move the paper into the duplexing re- pickup unit.

4.To align the paper with the toner image on the ITB, the duplexing re-pickup motor stops and the paper pauses.

5.The paper re-enters the paper path, and the second side prints.

Duplex pickup operation

The product has the following two duplex-media-feed modes depending on the media sizes:

One-sheet mode: Prints one sheet that is printed on two sides in one duplex print operation

Two-sheet mode: Prints two sheets that are printed on two-sides in one duplex print operation (maximum paper size is A4)

The formatter specifies the duplex-media-feed mode.

56 Chapter 1 Theory of operation

ENWW

Page 92
Image 92
HP Enterprise 500 manual Duplexing reverse and feed control, Duplex pickup operation