Sbc for print and scan server

Hello, i have a printer and scanner connected to a rpi 3b+ so everyone (at home) can access them through wifi.

Now the scanner is a CanoScanLide 400, which is powered though USB. This didn’t seem to be an issue with the raspberry, but recently i had to re-plug everything and now the scanner isn’t turning on with the raspberry anymore.

Does anyone have a suggestion for something low cost that is similar in size and power consumption and can support a usb powered device?

(Ideally also with wifi 5ghz, since this is the last device connected to the 2.4ghz)

Cobrachicken,

Probably also check the power settings in the config file: https://kalitut.com/increase-usb-current-limit-raspberry-pi/

maiskanzler,

Out of curiosity, how did you solve that software wise? I was planning to do the same thing with my old MFP. Are you just using CUPS and SANE?

lemontree,

Using cups for the printer and a sane web ui (scanservjs) for the scanner

maiskanzler,

I’ll look into that, thank you!

elmicha,

Maybe it would work with a powered USB hub?

cmnybo,

If the scanner was working fine with the Pi before, I would suspect the USB cable or power supply. Try a different power supply and cables. The Raspberry Pi 3B+ can supply 1.2 amps from its USB ports which is sufficient for 2 bus powered devices. A powered USB hub can be used if you need to connect more bus powered devices to the Pi.

lemontree,

You were right. It was the bloody usb cable powering the pi. I had switched that to a shorter one for less cable, but switching back it works again. Thank you

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