Unfortunately, Dave, that part is not available.
This is a very old model that was discontinued many years ago, there is no support for it in any form at this point.
This printer was made in 2002 and designed for a service life of only 3 years, so if you are having any problems with it other than just normal operational questions, it would not even be worth trying to repair, you could get a brand new printer for much less.
I can provide you an electronic manual, which you can view online by clicking HERE
A paper manual is not an option that is available from HP or any other part source for purchase however.
If you'd prefer help with choosing a new model I can recommend some options for you.
If you have any other questions, just let me know. Otherwise, please take a moment to rate my service as this is the only way I am credited for my time. Hopefully I have earned 5 Stars but if not please let me know what I can do to ensure you are satisfied. I also invite you to contact me directly with any future support needs at http://bit.ly/1QwLxGh and ask for Nathan.
Thank you, ***** ***** a nice day,