Apple 12/640PS manual Checking the optional duplex printing unit

Checking the optional duplex printing unit

1Remove the the duplex printing unit tray to see whether the jam is in the tray area. If so, gently pull out the jammed paper.

Hint: It may be difficult to view paper jams in the duplex printing unit tray area because paper jams may occur toward the back of the tray area. Look for wrinkled or curled edges indicating a paper jam.

2Open the duplex printing unit’s door to see whether the jam is around the paper guide for the duplex printing unit. If so, gently pull out the jammed paper.

Fixing Paper and Image Problems 295