HP scanner no longer working

English Hardware
1

Since a recent update of my Tumbleweed system, my printer/scanner combination hp Officejet pro 8720 does not scan any more. Xsane and Skanlite both refuse connecting to the device. Printing is still OK.
Xsane opens a window with an error message:
"Failed to open device 'hpaio:/net/HP_Officejet_Pro_8720?hostname=druckerneu': Error during device I/O."
while Skanlite just says "Opening the selected scanner failed."

The version of the hplip components is 3.26.6-1.1.
On another Tumbleweed machine, with hplip version 3.26.4-2.3, scanning works. This is why I suspect the latest update of hplip to be the culprit.

The printer is connected via a local network (wired Ethernet). Switching off the Firewall doesn’t change anything.

2

You may give this a try:
Install sane-airscan and give the following commands
scanimage -L
airscan-discover

3

With respect to HPLIP, this link might be relevant to your situation:

Check that there is not an HPLIP plugin mismatch to start with.

Query existing proprietary plugin with hp-plugin -l and if necessary update it with sudo hp-plugin -i.

4

After updating the plug-in Xsane and Skanlite crash immediately.

5

This is the result of that experiment:
armin@armin-pc:~> scanimage -L
Segmentation fault (core dumped) scanimage -L
armin@armin-pc:~> airscan-discover
[devices]
HP OfficeJet Pro 8720 [6D0CF3] = http://192.168.178.21:8080/eSCL/, eSCL
HP OfficeJet Pro 8720 [6D0CF3] = https://192.168.178.21:443/eSCL/, eSCL
HP OfficeJet Pro 8720 [6D0CF3] = http://[fd43:ed2:d3ac:0:e6e7:49ff:fe6d:cf3]:8080/eSCL/, eSCL
HP OfficeJet Pro 8720 [6D0CF3] = https://[fd43:ed2:d3ac:0:e6e7:49ff:fe6d:cf3]:443/eSCL/, eSCL
HP OfficeJet Pro 8720 [6D0CF3] = http://192.168.178.21:53048, WSD
armin@armin-pc:~>

The device is somehow recognised, but XSane and Skanlite crash.

6

In my case after running airscan , I launched skanpage and selected the most appropriate and it worked. I cannot say more than that.

7

Most modern HP multifunction printers support driverless printing and scanning via AirPrint/AirScan, (or can use the vendor-supplied HPLIP drivers).

The crash you describe may be caused by an unrelated hp scanner backend. Take a read of this topic…

I described a workaround there, which should resolve this for you.

8

Hello, same problem here

9

Read the topic in my last reply.

10

Sorry, none of the workarounds described in the aforementioned post of 2025 helped on my machine.
However, after installing the sane-airscan package I can select the eSCL device provided for my Scanner/Printer combination, and that works.

Thank you very much for your support!

11

Hello so i don’t have a problem with scanimage:

vincent@localhost:~> scanimage -L
device `hpaio:/net/ENVY_Photo_6200_series?ip=192.168.1.19’ is a Hewlett-Packard ENVY_Photo_6200_series all-in-one

But the Skanlite find the scaner but don’t open it (sorry i’m french).

image
image551×207 22.9 KB

12

i checked the logs i have the following error in journalctl:

image
image1191×207 78.9 KB

13

@VGib It’s Best to share output like this as preformatted text, rather then screen shots. Refer to the </> button in the forum editor.

Anyway, I note the image shows…
scan/sane/http.c:507: http_read: response exceeds buffer (read=8174 len=28 max=8192)
There are reports of scanning failing with HPLIP 3.26.6 and working again after reverting to 3.26.4.

A similar Arch Linux report here
https://bbs.archlinux.org/viewtopic.php?pid=2310489&utm_source=chatgpt.com

1 Like
14

@deano_ferrari , i’ve seen that. But i didn’t catch any bug report neither in sane or hplip.

Maybe i should write one, but i wonder if this is a sane or a hplip problem.

15

An hplip regression.

16

Problème rÊsolu avec airscan et utilisation avec eSCL .
Merci

17

Similar to others, it looks like hplip 3.26.6 is bad. I found the Arch Linux report first, and downgrading to 3.26.4 has worked for me.

With 3.26.6, I would get:

scanimage -L
device `hpaio:/usb/HP_OfficeJet_Pro_8710?serial=CN8CBDT2CW' is a Hewlett-Packard HP_OfficeJet_Pro_8710 all-in-one

So it can see that the scanner is there. But trying to actually use it, I’d get an I/O error:

scanimage --format=pnm --batch=page%d.pnm --batch-start=1 --batch-count=1  --mode Color   --source ADF  --resolution 300 -l 0 -t 0 -x 215.9 -y 279.5
scanimage: open of device hpaio:/usb/HP_OfficeJet_Pro_8710?serial=CN8CBDT2CW failed: Error during device I/O

I got similar I/O errors from the HP scan utils. After finding that Arch Linux post, I confirmed finding the same error in /var/log/messages:

2026-10-14T11:51:41.999889-05:00 farfalla scanimage: scan/sane/http.c 507: http_read: response exceeds buffer (read=8214 len=38 max=8192)

I added one of the old snapshots as a repo:

zypper ar  https://download.opensuse.org/history/20260917/tumbleweed/repo/oss/ tw20260917-oss

Installed the 3.26.4 versions:

zypper in --oldpackage hplip-base-3.26.4 hplip-common-3.26.4 hplip-cups-3.26.4 hplip-driver-hpcups-3.26.4 hplip-sane-3.26.4 hplip-utils-3.26.4 libhplip0-3.26.4

And now I’m back to having a working scanner again.

18

Worked for me, too. Thanks for the description.