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Canon Scanner Pixma MG3650 (All-in-one device): Connection issue WLAN
Posted: Fri Apr 16, 2021 6:20 am
by redhot
Hi everybody,
at the moment I'm using the Canon MG3650 all-in-one device. I don't know why but MX doesn't find the scanner component anymore. Printing works good but I can't scan anymore although Canon's scan driver is still installed.
Now, has anybody got some experience with HP all-in-one devices or another manufacturer. I know there is HPLIP already installed with MX and I think it's not without reasons!? I'm wondering if switching to HP would be a better solution.
Thank you in advance for any help!
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 6:35 am
by JayM
If your current printer/scanner hasn't died I would suggest troubleshooting the to try to get the scanner component working again and keep a perfectly good device out of the landfills. Most of these all-in-one printers have a one button scan and print function so it acts as a photocopier. Does that work on yours? If so the physical scanner itself is still working.
Otherwise a forum search will turn up which ones people have had problems with, and a web search for individual combo printer brand and model names along with the term "linux" will yield information about them.
We bought a Canon Pixma E400 almost a decade ago. It's USB-only, no network printing, and the scanner can't handle legal or long bond paper very easily being meant for up to A4 letter size, but other than having to replace the ink cartridges thrice and an occasional paper jam caused my using cheap thin paper it's been absolutely trouble-free, and it's plug-and-play in MX 18 and 19. I don't think they make this printer any more though. I'd like to have a printer whose scanner could handle longer and larger documents but I can't see getting rid of this one as long as it's still working. "If it ain't broke don't fix it."
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 7:14 am
by redhot
Thank you! I searched the forum and the web since the device's scanner function causes problems since I switched to Linux. But so far I could help myself by restarting "Simple Scan" several times. NOW I probably could restart it until I die and I'm fed up with that xxxxxxx. So, I wasn't successfull with searching and my device does not have a button with which I can scan a document and send it to my laptop as a file. There are buttons for printing a copy but none for scanning.
Okay, so I'm gonna keep on searching..., maybe I'm simply a miserable searcher...?!
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 7:21 am
by JayM
So you put an existing document on the scanner. press the Copy button, and it scans it then prints a copy? Then the scanner itself on your printer is working.
How about if you download and a burn copy of the MX ISO for the version of MX that you have at a USB stick, boot from it and install the printer & scanner drivers if needed? Can you scan then?
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 7:51 am
by j2mcgreg
I suggest that you test the printer against a Windows machine just to verify that the scanner is still actually functioning before you start your search.
Most new HPs will work OTB with Linux. There are still some Windows only remnants on the market but those are being replaced with new models when they reach their EOL. You can check a new machine's linux compatibility against this list of supported devices from HP before you buy:
https://developers.hp.com/hp-linux-imag ... ices/index
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 8:10 am
by redhot
Thank you folks! The scanner is definitely okay and working with Windows, a MacBook and even my wife's MX laptop without Canon drivers installed. Very frustrating! So I'm gonna try to find out if I missed something over the weekend...!
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 8:20 am
by asqwerth
Pls don't just buy any HP without confirming that it's Linux compatible. There's another thread started by mxmatrix where he plonked for one without full checks, and then had issues getting it to work. If it's not in the Linux list, don't just buy in hope. Remember you have to confirm both scanner and printer works in Linux.
For me, my last 2 MFC (multi-function) printer/scanner/fax machines have been Brother machines, where I first confirmed compatibility.
Current machine = MFC-L3750CDW
I'm not at my main PC right now, but I seem to recall that in Manjaro/Arch-based distros in the last few months, there was an upgrade where changes to made to sane (scanning) configs related to Canon and Epson machines. If I can find the message later (I save the terminal output of my last few updates for Manjaro/Arch!), I'll post it for what it's worth. Maybe something vital changed in respect of those printer/scanner brands or their drivers.
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 8:28 am
by redhot
Allright, thanks!
Re: Scanner (All-in-one device): Any recommendations? [Solved]
Posted: Fri Apr 16, 2021 11:23 am
by redhot
I found a solution in Ubuntuusers Wiki: Since I usually used Simple Scan I didn't remember that Canon's scangearmp2 can be started via Terminal, simply with "scangearamp2". On the first start it showed me "no scanner". With a refresh button I could start a search which took a while but it found the scanner at last. I'm gonna keep on testing it in the next days but at least it seems like a solution with which I can work.
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 11:24 am
by Michael-IDA
That page is a pita! I put in into a Calc file for sorting. But even then trying to find a printer that met my needs on that list was painful. Maybe I got a single bad example (HP Laser NS 1020n), but I couldn't even find it on HP's website (plenty of 1020, no 1020n).
Edit: What that page really needs is what year the printer was last manufactured.
The file is attached to make everyone's life easier.
Best,
Michael
PS: What's the current version of HPLIP in MX?
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 11:29 am
by redhot
@Michael-IDA
Bildschirmfoto_2021-04-16_17-27-52.png
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 11:56 am
by asqwerth
@redhot
For what it's worth, these were the config changes that happened in Manjaro in March 2021. I have no idea of their significance, if any, in relation to Debian-Buster-based versions of the driver or sane config files, unless you have perhaps installed upgrades to (or new versions of) your scanner driver from Canon itself.
Code: Select all
(171/182) upgrading sane [######################] 100%
warning: /etc/sane.d/canon_lide70.conf installed as /etc/sane.d/canon_lide70.conf.pacnew
warning: /etc/sane.d/dll.conf installed as /etc/sane.d/dll.conf.pacnew
warning: /etc/sane.d/escl.conf installed as /etc/sane.d/escl.conf.pacnew
( 1/27) Creating system user accounts...
Creating group saned with gid 989.
Creating user saned (SANE daemon user) with uid 989 and gid 989.
Contents of the /etc/sane.d/canon_lide70.conf.pacnew file:
Code: Select all
# Options for the canon_lide70 backend
# Autodetect the Canon CanoScan LiDE 70
usb 0x04a9 0x2225
# Autodetect the Canon CanoScan LiDE 600
usb 0x04a9 0x2224
# device list for non-linux-systems (enable if autodetect fails):
#/dev/scanner
#/dev/usb/scanner0
The new lines are:
# Autodetect the Canon CanoScan LiDE 600
usb 0x04a9 0x2224
From what I can see, the /etc/sane.d/escl.conf.pacnew file relates to certain Epson scanners.
I didn't merge those changes into the existing conf files, since I don't use Canon or Epson devices. I also did not merge the changes in /etc/sane.d/dll.conf as the new config file completely removed Brother from the list of detectable networked scanners for some reason.
Frankly, as long as my Brother machine continues to work in each of my distros, I don't mess with sane config files nor upgrade brscan4. Brscan4 is the scanner driver for my model, of which there is an update indicated in AUR, and which I simply ignore.
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 12:02 pm
by j2mcgreg
Michael-IDA wrote: Fri Apr 16, 2021 11:24 am
That page is a pita! I put in into a Calc file for sorting. But even then trying to find a printer that met my needs on that list was painful. Maybe I got a single bad example (HP Laser NS 1020n), but I couldn't even find it on HP's website (plenty of 1020, no 1020n).
Edit: What that page really needs is what year the printer was last manufactured.
The file is attached to make everyone's life easier.
Best,
Michael
PS: What's the current version of HPLIP in MX?
FYI: HPLIP 3.20.3 supports your machine from here:
https://developers.hp.com/hp-linux-imag ... ease_notes
Hp developer's Portal has a working search function.
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 12:25 pm
by redhot
asqwerth wrote: Fri Apr 16, 2021 11:56 am
Thank you very much for all your efforts! I'm gonna compare this folder with the one on my wife's laptop as her "Simple Scan" works flawlessly. Maybe I can find the problem this way!? I did not make any changes or updates with files or drivers anyway.
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 12:39 pm
by asqwerth
In Arch-based systems, .pacnew files provide new config files for various programs, but they don't automatically merge the changes for you. You are supposed to compare the original xxx.conf file with the xxx.conf.pacnew file and decide if you want to merge the changes into the actual xxx.conf files.
Like I said, I have no idea if some automatic changes happened to Canon sane conf files in MX/Debian systems in an update, which may have affected the operation of your canon device.
Let me give you the contents of the dll.conf.pacnew file as well. You can see Brother is missing from that list! So I did not amend my existing dll.conf file which does include Brother.
Code: Select all
# dll.conf - Configuration file for the SANE dynamic backend loader
#
# Backends can also be enabled by configuration snippets under the dll.d/
# directory -- third party backends can drop their configuration file in
# this in this directory, named after the backend.
#
# The next line enables the network backend; comment it out if you don't
# need to use a remote SANE scanner over the network -- see sane-net(5)
# and saned(8) for details.
net
abaton
agfafocus
apple
artec
artec_eplus48u
as6e
avision
bh
canon
canon630u
canon_dr
canon_lide70
#canon_pp
cardscan
coolscan
#coolscan2
coolscan3
#dc210
#dc240
#dc25
dell1600n_net
dmc
epjitsu
#epson
epson2
epsonds
escl
fujitsu
genesys
#gphoto2
gt68xx
hp
hp3500
hp3900
hp4200
hp5400
hp5590
hpljm1005
hpsj5s
hs2p
ibm
kodak
kodakaio
kvs1025
kvs20xx
kvs40xx
leo
lexmark
ma1509
magicolor
matsushita
microtek
microtek2
mustek
#mustek_pp
mustek_usb
mustek_usb2
nec
niash
#p5
pie
pieusb
pint
pixma
plustek
#plustek_pp
#pnm
qcam
ricoh
ricoh2
rts8891
s9036
sceptre
sharp
sm3600
sm3840
snapscan
sp15c
#st400
#stv680
tamarack
teco1
teco2
teco3
#test
u12
umax
umax1220u
#umax_pp
v4l
xerox_mfp
Re: Scanner (All-in-one device): Any recommendations?
Posted: Fri Apr 16, 2021 1:08 pm
by redhot
Re: Scanner (All-in-one device): Any recommendations?
Posted: Sat Apr 17, 2021 6:08 am
by redhot
redhot wrote: Fri Apr 16, 2021 12:25 pm
I'm gonna compare this folder with the one on my wife's laptop as her "Simple Scan" works flawlessly. Maybe I can find the problem this way!?
No, both folders are 100% identical! But: I'm absolutely happy with scangearmp2! It even activates the scanner when it is switched off. So I don't care why Simple Scan doesn't find the scanner anymore.

Re: Scanner (All-in-one device): Any recommendations?
Posted: Sat Apr 17, 2021 11:20 am
by redhot
And a last information: Simple Scan and Xsane detect the scanner and thus work flawlessly when the MG3650 is connected via USB. When I pull the plug and they need to connect via WLAN they don't find the device anymore.
Re: Canon Scanner Pixma MG3650 (All-in-one device): Connection issue WLAN
Posted: Sat Apr 17, 2021 11:53 am
by asqwerth
Maybe you need to reset/reconfigure your scanner driver to point to the scanner's network location?
Re: Canon Scanner Pixma MG3650 (All-in-one device): Connection issue WLAN
Posted: Sun Apr 18, 2021 4:11 am
by redhot
I made use of the situation and deactivated WLAN and Bluetooth. So my device is on a "wired-only" mode.