Searching for a 9120A drive belt

[Richard Wilder]

Hi All,
Forum noob here looking for a drive belt for my recently aquired 9120A printer (with 9100B calculator & 9125A plotter). I can't find the service manual for the 9120A so I don't know what the HP part number or original manufacturer is. Any help finding a belt, part number or manufacturer would be greatly appreciated.

Thanks!

[Richard Wilder]

Found it!

http://www.sdp-si.com/

Part number:
A 6R 6-1930180