Fix for USB scanner not working on LM20 that worked on LM19

[xenopeek]

There have been a number of reports from users that upgraded from LM19 to LM20 (or from Ubuntu 18.04 to Ubuntu 20.04) and found their USB connected scanner to no longer work. A common possible solution appears to be to remove the package ippusbxd. ippusbxd was supposed to allow driverless printing and scanning but it doesn't work with a number of printers, such as from HP: https://bugs.launchpad.net/hplip/+bug/1871011

If you are in a similar situation try removing that package. You can do so through Synaptic Package Manager or from terminal with command: apt purge ippusbxd

If that doesn't solve your scanner issue please make a new topic in this forum for further help.

[asinoro]

@xenopeek, I often do this mistake when I write to new users I forgot the sudo, because I use the root terminal.

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sudo apt purge ippusbxd

[brian_p]

There have been a number of reports from users that upgraded from LM19 to LM20 (or from Ubuntu 18.04 to Ubuntu 20.04) and found their scanner to no longer work.

This issue concerns USB connected modern devices only. It may be useful to read the IPP-over-USB sections at

https://wiki.debian.org/CUPSDriverlessPrinting

Vendor (Brother, Canon, HP etc) printer and scanner drivers will not work when the IPP-over-USB protocol is being used.

A common possible solution appears to be to remove the package ippusbxd. ippusbxd was supposed to allow driverless printing and scanning but it doesn't work with a number of printers, such as from HP: https://bugs.launchpad.net/hplip/+bug/1871011

If you are in a similar situation try removing that package. You can do so through Synaptic Package Manager or from terminal with command: apt purge ippusbxd

Users who wish to see driverless printing and scanning driverless restored to their machines can replace ippusbxd with ipp-usb. This may be obtained from

https://github.com/alexpevzner/sane-airscan

A direct link to the required file is

https://download.opensuse.org/repositor ... .04/amd64/

It is strongly suggested a user obtains and installs sane-airscan from the same place.

ipp-usb and sane-airscan are part of Debian and will soon be shipped by Ubuntu. Both have enjoyed great success when installed by Mint users from Alexander Pevzner's archive.

[trytip]

@xenopeek, I often do this mistake when I write to new users I forgot the sudo, because I use the root terminal.

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sudo apt purge ippusbxd

sudo is no longer required with apt. if you apt update it's the same as if you used sudo

[asinoro]

@xenopeek, I often do this mistake when I write to new users I forgot the sudo, because I use the root terminal.

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sudo apt purge ippusbxd

sudo is no longer required with apt. if you apt update it's the same as if you used sudo

This is correct, I didn't know it!

[xenopeek]

@xenopeek, I often do this mistake when I write to new users I forgot the sudo, because I use the root terminal.

On Linux Mint the apt command has always been a wrapper around the many different commands related to APT package management and it invokes sudo itself when needed. Type apt on the terminal without any arguments to get a full list.

This issue concerns USB connected modern devices only. It may be useful to read the IPP-over-USB sections at

https://wiki.debian.org/CUPSDriverlessPrinting

Vendor (Brother, Canon, HP etc) printer and scanner drivers will not work when the IPP-over-USB protocol is being used.

Thanks for that clarification. I've updated the topic subject.

[DisturbedDragon]

Users who wish to see driverless printing and scanning driverless restored to their machines can replace ippusbxd with ipp-usb. This may be obtained from

https://github.com/alexpevzner/sane-airscan

A direct link to the required file is

https://download.opensuse.org/repositor ... .04/amd64/

It is strongly suggested a user obtains and installs sane-airscan from the same place.

ipp-usb and sane-airscan are part of Debian and will soon be shipped by Ubuntu. Both have enjoyed great success when installed by Mint users from Alexander Pevzner's archive.

Thank you for this! Network scanning has been broken more often than not for my older Samsung M2870FW with Simple Scan. My newer Canon PIXMA was always seen but is not my primary device used. Issues arose in Mint 19 off and on then persisted in Mint 20, I bought VueScan years ago since it always works for both with zero issues. Simple/Document scanner does now recognize my Samsung and Canon network scanners.

Side note for those with older Samsung devices. This was shortly after HP acquired Samsung printer division. When I updated the proprietary print/scanner drivers my printer started printing so many pages of rubbish symbols. I removed and added the printer several times using IPP like I always had before with the same result. Installed again this time using HP Jet Direct printing is flawless.

[brian_p]

Simple/Document scanner does now recognize my Samsung and Cannon network scanners.

Very pleasing that scanning works well for you with sane-airscan. I would be interested in the outputs for both devices given by

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scanimage -L

and

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airscan-discover

[DisturbedDragon]

Simple/Document scanner does now recognize my Samsung and Cannon network scanners.

Very pleasing that scanning works well for you with sane-airscan. I would be interested in the outputs for both devices given by

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scanimage -L

and

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airscan-discover

Obliged to give that info.

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scanimage -L
device `escl:https://192.168.9.31:443' is a ESCL Canon TR4500 series SSL flatbed scanner
device `escl:http://192.168.9.31:80' is a ESCL Canon TR4500 series flatbed scanner
device `airscan:w3:CANON INC. TR4500 series' is a WSD CANON INC. TR4500 series WSD network scanner
device `airscan:e0:Canon TR4500 series' is a eSCL Canon TR4500 series eSCL network scanner
device `airscan:w2:Samsung Electronics Co., Ltd. M267x 287x Series' is a WSD Samsung Electronics Co., Ltd. M267x 287x Series WSD network scanner

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airscan-discover
[devices]
  CANON INC. TR4500 series = http://192.168.9.31:80/wsd/scanservice.cgi, WSD
  CANON INC. TR4500 series = http://[fe80::9e32:ceff:fe87:7270%252]:80/wsd/scanservice.cgi, WSD
  Canon TR4500 series = http://192.168.9.31:80/eSCL/, eSCL
  Canon TR4500 series = https://192.168.9.31:443/eSCL/, eSCL
  Samsung M267x 287x Series (SEC001599E842C8) = http://192.168.9.32:8018/wsd/scan, WSD

[brian_p]

Thank you. May I impose on you with another query? Do both these commands give you scanning with the Canon?

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simple-scan "airscan:w3:CANON INC. TR4500 series"

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simple-scan "airscan:e0:Canon TR4500 series"

[DisturbedDragon]

Thank you. May I impose on you with another query? Do both these commands give you scanning with the Canon?

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simple-scan "airscan:w3:CANON INC. TR4500 series"

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simple-scan "airscan:e0:Canon TR4500 series"

Both commands do open Document Scanner with the Canon selected. Scanning does commence when initiated with the scan button.

[brian_p]

Both commands do open Document Scanner with the Canon selected. Scanning does commence when initiated with the scan button.

Thank you again. In keeping with the subject title of this thread, it would be as well to highlight that, provided ipp-usb is installed, sane-airscan should scan successfully with these devices on USB.

[pzz]

Hi DisturbedDragon,

> device `airscan:w3:CANON INC. TR4500 series' is a WSD CANON INC. TR4500 series WSD network scanner
> device `airscan:e0:Canon TR4500 series' is a eSCL Canon TR4500 series eSCL network scanner

In theory, sane-airscan should merge these two entries (because it's the same device), but it didn't. I want to look to this issue. May I ask you to run yet another experiment?

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airscan-discover -t

It will create a file airscan-discover-zeroconf.log in the current directory. Please, send me this file either by e-mail (pzz@apevzner.com), or attach it here

[DisturbedDragon]

pzz,

Requested file created and uploaded.

https://gofile.io/d/HIjtvR

[Fizz]

I too am having an issue.

I have a Canon MG5720 printer/scanner, which used to work fine under Mint 19. I am now on Mint 20 and having issues.

The scanner works fine on my laptop, which is connecting to it via wi-fi. My desktop machine is connected via usb directly. When i start Document Scanner, it searches and finds the scanner. But when i hit the Scan button, i get an error "Failed to scan. Unable to connect to scanner." If it was unable to connect then how did it find it in the first place?

I have tried the recommendations above, removing ippusbxd and installing ipp-usb and sane-airscan. But the behavior is unchanged. Any advice? Thanks!


-Fizz

[brian_p]

The scanner works fine on my laptop, which is connecting to it via wi-fi. My desktop machine is connected via usb directly. When i start Document Scanner, it searches and finds the scanner. But when i hit the Scan button, i get an error "Failed to scan. Unable to connect to scanner." If it was unable to connect then how did it find it in the first place?

Give what you get for

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systemctl list-units "ipp-usb*" | grep service

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lsusb -v | grep -A 3 bInterfaceClass.*7

[Fizz]

Give what you get for

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systemctl list-units "ipp-usb*" | grep service

For the first, it tells me

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ipp-usb.service loaded activating start start Daemon for IPP over USB printer support

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lsusb -v | grep -A 3 bInterfaceClass.*7

And this one returns

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can't get debug descriptor: Resource temporarily unavailable
      bInterfaceClass         7 Printer
      bInterfaceSubClass      1 Printer
      bInterfaceProtocol      2 Bidirectional
      iInterface              0 
--
      bInterfaceClass         7 Printer
      bInterfaceSubClass      1 Printer
      bInterfaceProtocol      4 
      iInterface              0 
can't get debug descriptor: Resource temporarily unavailable
--
      bInterfaceClass         7 Printer
      bInterfaceSubClass      1 Printer
      bInterfaceProtocol      4 
      iInterface              0 
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable

-Fizz

[brian_p]

Thanks. The second output has

bInterfaceProtocol 4

This shows that the device understands the IPP-over-USB protocol. The first output is what should be obtained when ipp-usb has been activated correctly after the device is plugged in. sane-airscan should work.

Give what you get for

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scanimage -L

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airscan-discover

[Fizz]

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scanimage -L

This one gives:

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device `pixma:04A9178E_505AAC' is a CANON Canon PIXMA MG5700 Series multi-function peripheral
device `escl:http://127.0.0.1:60000' is a ESCL  (USB) flatbed scanner
device `airscan:e0: (USB)' is a eSCL  (USB) eSCL network scanner

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airscan-discover

And this one gives:

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[devices]
   (USB) = http://127.0.0.1:60000/eSCL/, eSCL
  Canon MG5700 series = http://192.168.1.8:80/wsd/scanservice.cgi, WSD

-Fizz

[brian_p]

device `airscan:e0: (USB) is a eSCL (USB)' eSCL network scanner

This does not look right. I'd expect the device format to have the format:

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airscan:e0: DNS-SD_NAME_OF_DEVICE (USB)

Have you adjusted the MG5720's Bonjour Name via its web interface? Do you get scanning with

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simple-scan "airscan:e0: (USB)"

Please give the output of

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avahi-browse -rt _ipp._tcp