How printers are found
You do not add printers to Yessort by hand. The agent finds them.
Discovery
When the agent reports in, it tells Yessort what printers it can see. Those appear in Yessort, ready to be used.
So getting a printer into Yessort is a matter of making sure the machine running the agent can reach it — through the operating system's print queues, or on the network. Once it can, it shows up. See get your printers discovered.
The three kinds
How the agent talks to a printer.
Thermal label printers are addressed directly over the network, usually on the standard printing port. These take ZPL — the language label printers speak — and are what you want for product, location and courier labels.
Operating system print queues are printers already set up on the machine itself. The agent prints through the queue as any application would.
Network printers addressed by their own address are reached over the standard internet printing protocol.
The full list, with what each is called, is in printer kinds and statuses.
The same printer found twice
One physical printer can be visible in more than one way — as a queue on the machine, and as a network address.
Yessort works out that they are the same and keeps one entry rather than two, preferring the operating system's queue.
Worth knowing, because otherwise you would expect duplicates and go looking for the "other" one. There is one printer, listed once.
Statuses
Online — the agent can currently see it.
Offline — it was there and is not now. Powered down, unplugged, or off the network.
Discovered — newly found, not yet in use.
An offline printer does not lose its settings or its routing rules. It comes back as itself.
Label stock
A printer records what stock is loaded — the physical labels in the machine, and their size.
That matters because sending a 4×6 courier label to a printer loaded with small product labels wastes a roll and produces nothing usable. Yessort can tell when the loaded stock does not match what a job needs, and flags the mismatch.
Printers belong to the site
Like the device that found them. Anyone with access to the site sees its printers, including every organisation in a shared warehouse — see the print agent and devices.