[sane-devel] Plustek scanner - follow up

Gerhard Jaeger gerhard at gjaeger.de
Fri Aug 4 05:52:11 UTC 2006

On Thursday 03 August 2006 16:51, Immanuel CRC Office wrote:
> Okay, so I'm getting somewhere.
> Plustek OpticPro 9639P+, parallel port
> using plustek_pp backend.
> I have to run all as root so far.
> scanimage -L gives:
> device `plustek_pp:parport0' is a Plustek 9636P+/Turbo parallel port 
> flatbed scanner
> device `hpaio:/par/HP_LaserJet_1200?device=/dev/parport0' is a hp 
> HP_LaserJet_1200 multi-function peripheral
> (Great! I have two connected in series to my parallel port. Printer 
> still works. Ideally, I want both connected and both working, so we're 
> getting somewhere.)
> When I do:
> scanimage -d plustek_pp:parport0 -p > image.pnm
> I heard a bit of sounds from the scanner. Then I got:
> scanimage: sane_read: Error during device I/O
> 1. Still can only do stuff as root.
> 2. Need to fix error.
> Ideas?


I didn't follow the thread so far, so some hints might be doubled:

- remove the printer from the chain as this might cause problems
  (has also be stated by Plustek)
- make sure to have any ECP mode disabled in BIOS (set the port to
  SPP, BiDi or EPP)
- for having access to the parallel port as "normal" user you have to
  tweak probably the udev/hotplug settings depending on the distribution
  you use


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