Sometimes it is just plain inconvenient to have to return to my office with my clients to print out offers, sellers disclosures, and other documents. Enter the world of portable printers. While I have been seen carrying my doorstop HP Laserjet 5 printer (38 pounds) into a client's home in the past, I now use an HP Photosmart C3180 All in One.
The C3180 is much lighter in weight, fast, the paper tray folds up, I can scan as well as make black and white and color print outs, and it only set me back $89. Sure there are close to $400 lighter weight and battery operated, truly portable printers out there but with a $20 car adapter I can plug it in and get prints anywhere my car goes.
Once offers are signed, they can be scanned back in as PDF and then emailed to the listing agent.
http://activerain.com/blogsview/Writing-an-offer-on-a-Lap-Top-way-to-go-?12249 tells about wireless printing and making use of zip form and a tablet pc. Also, mentioned are paperless and digital signing.
http://activerain.com/blogsview/The-tools-for-a-self-service-agent?10016 mentions Treo usage and bluetooth printing.
http://activerain.com/blogsview/Really-Useful-Tool-1?9216 mentions the Fujitsu ScanSnap.
Note: My LJ5 finally died after 7 years of extremely faithful service. I don't have the heart to throw it away.
Thanks!
Rob Lang, ePro, GRI Realtor®
Realty Executives, Hedges Real Estate
300 Rockfence Pl, Lawrence, KS 66049
785-393-2274 (cell) 785-542-1661 (fax)
rob@LetRobDoIt.com (same website name if you want to visit)

Great information here.
You also need to drop in a broadband card for your laptop, something I just purchased....amazing and very fast.
I would go with a regular printer, and use one of the scansoft.com portable USB scanners or one of the new pen type scanners..
Rob,
It will be interesting to know if there is something very portable, I have not made any research
Ray Saenz