This is my review of the Epson SureColor P5370 17-Inch Professional Photographic Printer after owning it for over a year. In summary:
Beware! Do not buy the Epson SureColor P5370 17-Inch Professional Photographic Printer
Do not buy the Epson SureColor P5370 or any P Series Epson Printer
Why is the Epson SureColor P5370 so awful?
Reason #1
The Epson SureColor P5370 has encrypted ink chips on the ink cartridges that cannot be reset. This means that you cannot refill ink cartridges on the Epson P5370 or similar models. You are forced to buy Epson-branded ink which is egregiously overpriced.
Epson Surecolor P5370 Ink Chips Cannot Be Reset
Chip resetters do not work! The below chip resetter was bought on Amazon. The seller promised that it would work on the Epson P5370 ink chips and that was not true. The ink chips are encrypted and cannot be reset.
Epson Surecolor P5370 Chip resetterEpson Surecolor P5370 Chip resetter 2
See below, on eBay you can buy 10 liters of Epson ink for $800, which comes to $80 per liter. However, that's not an option anymore so you're stuck with Epson-brand ink which is $110 for 200ml, or $550 per liter! At $550 per liter you are not making money owning an Epson printer. You are working for Epson!
Epson Surecolor P5370 Ink on eBay
Epson Overpriced Ink cartridges
The older Epson P5000 did not have encrypted chips, meaning that you could use an ink chip resetter. Those days are over, Epson has turned ink sales into a bigger profit center than the printers themselves.
Reason #2
Awful print quality. The below graphic is on a 1mm paperboard at best quality and +20% ink saturation. The lines are still fuzzy even though the artwork is vector (Printed from Adobe Illustrator). We played around with the platen gap distance with no improvements no matter the setting.

The ink usage is outrageous, the 200ml Epson T55V ink cartridges drain fast and are expensive at $110ea. We use around $10/ink printing these 17" x 22" boards. The problem is that we sell them at around $30ea which means that Epson takes home 33% of the sales revenue. If you could source your own ink, your cost would be $80/L instead of $550/L. For this particular project, our ink cost should be $1.45 instead of $10 per board, but unfortunately you cannot source your own ink with this printer.
Epson Awful Print Quality
Did I mention that Epson disabled the ink counter / ink usage meter in their desktop software? They don't want you knowing your cost per print anymore :O) how convenient.
Epson Awful Print Quality SC-P5370
Reason #3
Filthy print head and print carriage. The print head needs constant cleaning because it gets caked in ink that sprays and drips all over your graphics. If your customer needs a single print, you will end up printing 3-4 prints and possibly 1-2 head cleanings. You will need to manually access the capping station to constantly wipe it clean. This is the messiest, nastiest print reservoir and capping station you will ever work with. On top of that, head cleaning uses a lot of ink which is outrageously expensive as ink is $550/L.
Epson SureColor Terrible Quality PrintsEpson SureColor Terrible Quality Prints 2
Reason #4
Absurd 10-color system. Why on earth do you need 10 ink colors? I'll tell you exactly why, because to refill all 10 inks, the total cost is $110ea color or $1,100 total! Epson has designed this printer to bring them more money in ink sales than selling the printers themselves. At $2,000 per Epson P5370, you'll pay more for ink in only two refills. Anyone with industry knowledge knows that you get awesome prints with the classic 4-color system of CMYK. 10 colors is hilariously outrageous and totally unnecessary. It wasn't invented to make the world a better place, Epson created it to make more money and poison the industry.
Beware! Don't buy the Epson Surecolor P5370
In summary:
Do not purchase the Epson SureColor P5370! Also known as the SC-P5370 or P-Series Epson Printer. The ink is outrageously expensive, the print quality is bad, the messy print head will ruin your prints, and the 10-color system prints worse than traditional 4-color CMYK printers.