>>You do neglect to read well  your messages. I gave this answer
>>specifically about the duplex feature because Sasja asked to
>>describe how exactly the duplex feature works. It is about the
>>duplex feature. Read the previous messages, and read them
>>all.

 rtn> I do know how to read english,Kris. You did not mention the
 rtn> attachment needed to do duplex printing. Sasha ask HOW it was
 rtn> done. This means all the steps needed to print duplex,which
 rtn> includes the special attachment that is required.

FWIW: the HP 990 Cse that i have here, came with the duplex unit... it was
simply a matter of installing it during assembly rather than leaving the
blocking plate on the rear of the unit...

)\/(ark