
Canon
SELPHY CP1500
Simple, archival dye-sub prints; portability and costs divide users.
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I picked up the CP1500 on a whim and it's a good little printer, but being limited by 6x4 does make you look at other printers which can do larger prints, and then I impulse bought a SC-P700.
Canon and Epson are probably going to be your best to brands to pick from if you want true professional print quality at home. Canon makes their Pro line of printers (pro 200/300/1000) and Epson has the P700 and P900. Each will have their pros and cons, but overall you'd be happy with any of them most likely. These are not your regular inkjet printers you'd buy at an electronics/office store. They are proper professional photo printers. Canon Pro 200 will print up to 13" wide, so it would work for you very well. I think it's about $600 USD. The real question is, is buying a pro printer worth it for you? It's a combination of cost/savings vs a print shop and then the control you'll have over your prints. If this is for just printing your photos for personal use, then it's probably not going to be worth the cost. Printing A4 prints at print shops isn't THAT expensive. But buying a $600 printer and then spending a bunch of money on ink refills and potential wasted paper/ink, probably won't be a cost effective option for you if that's the goal. You'd either need to print a lot to hit a break even point for personal use, or just be that demanding in regards to your prints to want more direct control over how they come out, to make buying a pro printer worth it.
If you're wanting to do high quality "archival" prints and selling them for hundreds of dollars then pigment ink printers are the way to go. For less than $1k your options are Canon Pro 310 or Epson P700. I prefer Canon. If you are making prints to sell for $20-$50 then dye ink printers like Epson Eco-Tank are great.
yeah, you should just go with the surecolor, its a great printer. The Canon pixma pro 200s is a good option too if you wanna save a bit of money
agreed, its really only worth getting a photo printer if you're going to be using it very often for work or something. fwiw I have the Epson SureColor P700 and its been perfect for my needs
For those specific needs with charts and A3, i'd look at the Canon imagePROGRAF PRO-1000 or Epson SureColor P700 if photo-quality color is crucial. But honestly for office charts with deep blacks, a color laser like the Brother MFC-L9570CDW might serve you better - toner doesn't smudge and gives consistent results for 50+ pages daily. The Brother has ADF, duplex, and AirPrint without manufacturer apps. Laser running costs are generally lower for volume, and you won't deal with ink drying between prints. The Epson WorkForce Pro WF-7840 is another solid A3 all-in-one that hits most of your requirements with good connectivity.
For selling art prints, you'll want pigment-based inks and something that handles thicker paper. I'd look at the [Epson SureColor P700](https://metadoraffi-eng.github.io/shopit?Epson+SureColor+P700) - it's designed for photographic prints with archival pigment inks. The [Canon imagePROGRAF PRO-1000](https://metadoraffi-eng.github.io/shopit?Canon+imagePROGRAF+PRO-1000) is another solid choice for art reproduction. Honestly, moving up from consumer EcoTanks to these models makes a huge difference in color accuracy and print longevity for selling artwork.

Canon
SELPHY CP1500
Simple, archival dye-sub prints; portability and costs divide users.

Epson
EcoTank Photo ET-8550 All-in-One Wide-format Supertank Printer
Low-cost tank prints large, but suffers paper jams, color issues.
Canon
PIXMA G660 MegaTank
6-color MegaTank offers quality, low cost; but slow, poor display.

Canon
SELPHY QX20
Portable dye-sub sticker printer; but no battery, paper scarce.
Canon
PIXMA PRO-200
Pro large-format quality; but high ink and replacement costs.