AZ Anon here. The first thing I think of when you mention Florence is the prison. Code monkey said there were 10 different kinds of paper used to print the ballot when only one type was approved.
Arizona Correctional Industries has a printing program. If Clint Hickman can use prison labor to run his chicken ranch I see no reason Biden could use them to print fake ballots.
https://aci.az.gov/capabilities/printing-signage/
Solution: Hickman engineers met with ACI Print Shop managers to find ways to produce and supply the various carton labels now required. New printing equipment was procured for this specialty print job. After several months of tweaking and adjusting, and more new equipment, the ACI Print Shop began printing and die cutting Hickman’s Family Farms labels for their new carton design. This made it possible for the entire packaging process to be done locally and expeditiously. Currently, more than 30 million labels are produced annually at the ACI Print Shop at ASPC-Perryville Women’s Prison.
https://aci.az.gov/casestudy/hickman%E2%80%99s-family-farms/