I've actually had really good luck finding quality printers on craigslist. I started my own business up in 2009, and at the time a large number of my prints were and still are 11x17. Contacting an HP seller and getting prices, the cheapest HP laser printer with network support was ~$470. That wasn't money I was willing to spend at the time.
Went on craiglist. I was patient. Found a one year old network 11x17 HP laser printer with expansion tray, sorter, storage base, etc, etc for $50. The sellers were a business that was closing. The printer is in excellent shape, and was well maintained with regular service. They even threw in a brand new toner cartridge. It was sweet deal. Point being is there are opportunities like this one if you're patient.
Research online for a 24" wide format printer. Find a few manufacturers and model #'s you are looking for, and start searching them on CL. I use an Android app on my phone and there are several for both android and iphone that will do automatic searching on CL for you, and give you notifications when you get a hit. I'm not sure linking in this forum is allowed, but for instance
24" HP Printer. Brand new printer in the box for a couple hundred off retail.
Personally I do use a reprographics company for large format, but that's what suits my need. Good luck to you.
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Gordon McKenzie Assoc. AIA
Tartan CAD Services
Lewisville TX
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