However that did involve running saned as root, which would get around the sudo issue but felt a bit of a sledgehammer to crack a nut as well as being a poor choice from a security point of view. However even after this running any of the scanner tools still failed all pretty much saying they couldn’t see a scanner, including:īy chance I decided to try running scanimage -L as sudo (rather than just the pi user) and there it was, one scanner detected!Ī quick Google search for sane only working as root threw up a few more clues as well a workaround. Looking at CUPS after using the setup method showed a different connection string, clearly now using the HP drivers: Running hp-check suggested the printer hadn’t been set up using the HPLIP drivers so I removed the existing object and re-installed it using the hp-setup utility instead. It turns out HP include various tools and utilities in the HPLIP package that can help identify what’s being detected (or not as the case may have it) Not so good □ A bit of research suggested not all printers are compatible with SANE but a lot of HP ones are via the HPLIP driver library:įortunately my PhotoSmart was on the list so the mystery deepens. A quick search found another excellent guide:įollowing the guide was going well until it came to running the scanimage -L command where I just got an error saying no scanners were identified. Although adding the printer via the CUPS interface works fine I found that my specific device (HP PhotoSmart C4400) needed a slightly different method to get all its features working – more on that belowĪlthough I was very pleased with the print server I also wanted to try and add scanning functionality as well.Run the remote admin command below to allow the CUPS web interface to be accessed from my desktop (as the Pi hasn’t been connected to a screen or any input devices at any point in its life so far). I did make a couple of changes in addition to the steps in the guide The AirPrint support was pretty much the key selling point for trying out the RasPi approach and works seamlessly. The first part of the setup was pretty straightforward, thanks to two excellent guides from. First up was the RaspCTL web interface and in addition a mobile app for my Android phone called RasPi Check Although the RasPi can be left on drawing minimal power I still want to shut it down when not in use the lack of a power button means an app to send it into halt state is essential. I decided to run the Raspbian OS and set up an SD card using the method listed on the Raspberry Pi site.Īfter doing the basics and configuring networking I had a look around for some apps that could help manage the RasPi remotely. Ever since the Raspberry Pi came out I’ve wanted to try it out but couldn’t find a compelling reason to actually go and buy one. The other day my family needed to print some documents from an iPad, which got me thinking that a wireless print server might be a good mini-project.Ī quick trip to Amazon ended up with a small pile of boxes arriving this morning:
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