This probably belongs on another forum, but I'll give it a try here first.
I bought a used 9800 that has an accessory bolted onto it that is a bit of a mystery to me. (The seller was a third party who was not knowledgeable.) It appears it is/was a device that held some type or bar or additional guide for roll paper or other substrate. Images of the left half of the device are at
http://www.paulroark.com/BW-Info/9800-roll-paper-accessory.jpg
(The printer had been refurbished; all component life info was very good and it works great.)
Any guidance would be most appreciated.
Paul
PaulRoark.com -- Paul Roark's Photographic Home