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POPrinting directly to Ethernet printer using 'raster mode': need basic guidance
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copied!<p>I've stumbled across a problem <em>way</em> beyond my area of expertise, and I don't have a mentor to turn to for help with this.</p> <p>I have a receipt printer I need to interface with through an iOS app. The printer is located on the same network as the device(s), so I can address it through supported "Line Mode commands"</p> <p>What I'd like to do is keep the code I have already that works cross-platform – i.e. it's a UIView/NSView, and if you're not familiar with OS X/iOS, it's just a standard vanilla view that I can render into PDF/PNG formats. Thankfully, the printer has a "raster graphics" mode that seems to be what I need.</p> <p>Unfortunately, be it the broken English of the command spec, or my complete lack of knowledge of anything beyond basic C, or my complete lack of knowledge regarding graphics, I have no idea how to even get started from the command specifications I have. I know the printer and my networking <em>works</em> because I can address it over the network and send it basic feed commands. But, I have no idea how to go from a PNG -> whatever the printer needs to make it's 'raster mode' work.</p> <p>The specification is available at <a href="http://www.star-m.jp/eng/service/usermanual/linemode_cm_en.pdf" rel="noreferrer">http://www.star-m.jp/eng/service/usermanual/linemode_cm_en.pdf</a> , and the page you'd want to start reading it if you want to help is 3-68, and the specific commands I'm having trouble even getting started with are on 3-78/3-79.</p> <p>I can give you nothing but a checkmark but I assure you, you'll have my undying gratitude if you can even provide me even a point in the right direction.</p>

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