Re: [Dorset] Scanning did work and half-hour later didn't? - resolved
Thanks Terry, Peter, & Tim. I really hadn't thought of a network device having a web page. My printer certainly does have a few and that gave me a lot of confidence. It was much better than peering at the LED window on the printer armed with a torch and magnifying glass! I confirmed that I had set up the printer with a fixed IP address, but then realised I had not done the same on the router. But even after fixing that the router's web page(!) showed the printer as an attached device only sporadically. I ran the .deb file again and this time removed the driver, and then re-installed it. Now it ... was different - no device found. Actually, I felt better about that rather than "Invalid argument". At that point I had THE obvious thought - is there a new driver? Lo and behold, on the Brother website is a packaged set of drivers for printer, CUPS, and scanner - dated 21/8/2021! After installing the new drivers for the 2nd time (this time following the instructions) it all worked. I did like to read that other people come across the situation that it can't have ever worked, even though it did earlier. My own thought on that is that there were some Ubuntu updates happening after the first successful scan that changed something in the libraries. I authorise almost all suggested updates without really registering it. I've looked in /var/log/apt/history.log and found libsystemd0, linux-libc-dev, and libgs9 listed at about the right time. Having done some scanning now I can warn of a problem with xsane that seems to be well-known but unresolved. At high resolutions (e.g. 4800 dpi) you get "Out of memory" errors. My best guess is that this refers to the scanner and just needs a better message. Thanks, John On 15/01/2022 12:00, dorset-requ...@mailman.lug.org.uk wrote: Send dorset mailing list submissions to dorset@mailman.lug.org.uk To subscribe or unsubscribe via the World Wide Web, visit https://mailman.lug.org.uk/mailman/listinfo/dorset or, via email, send a message with subject or body 'help' to dorset-requ...@mailman.lug.org.uk You can reach the person managing the list at dorset-ow...@mailman.lug.org.uk When replying, please edit your Subject line so it is more specific than "Re: Contents of dorset digest..." Today's Topics: 1. Scanning did work and half-hour later didn't? (JD) 2. Re: Scanning did work and half-hour later didn't? (Terry Coles) 3. Re: Scanning did work and half-hour later didn't? (PeterMerchant) 4. Re: Scanning did work and half-hour later didn't? (Tim) -- Message: 1 Date: Fri, 14 Jan 2022 15:24:31 + From: JD To: dorset@mailman.lug.org.uk Subject: [Dorset] Scanning did work and half-hour later didn't? Message-ID: Content-Type: text/plain; charset=utf-8; format=flowed I have a Brother laser printer - DCP1612W.? Yesterday I scanned a couple of photos and saved them as jpg's.? About a half-hour later I got only an error message each time I ran xsane, and that is still the case.? Printing continues to work as normal. Details: Ubuntu 20.04.3 The error message is: "Failed to open device 'brother4:net;dev0': Invalid argument." It's configured to connect via WLAN.? The IP address appears in the router list occasionally but usually not. After: scanimage -L I get "device `brother4:net1;dev0' is a Brother *DCP1610W DCP1612W", so the correct model is known about. In /etc/sane.d/dll.conf I've put in "192.168.0.1/24" but I can't restart saned: "saned.service is masked." When I run the Brother file "brscan4-0.4.10-1.amd64.deb" I find it is already installed, of course. On the internet I found reference to the file: http://www.sane-project.org/sane-backends.html;, this contains? 2 supported Brothers but not mine. In desperation I pressed the SCAN button on the printer, but no miracles, just "Check connection". What did I do in the fateful 30 mins yesterday afternoon!? Regards, John -- Message: 2 Date: Fri, 14 Jan 2022 15:38:29 + From: Terry Coles To: dorset@mailman.lug.org.uk Subject: Re: [Dorset] Scanning did work and half-hour later didn't? Message-ID: <4369572.3SBJN2GhQE@optiplex> Content-Type: text/plain; charset="us-ascii" John, One or two thoughts which may or may not be helpful. On Friday, 14 January 2022 15:24:31 GMT JD wrote: I have a Brother laser printer - DCP1612W. Yesterday I scanned a couple of photos and saved them as jpg's. About a half-hour later I got only an error message each time I ran xsane, and that is still the case. Printing continues to work as normal. Caveat: I've never used any kind of Brother Device; I've always bought HP. Details: Ubuntu 20.04.3 The error message is: "Failed to open device 'brother4:net;dev0': Inva
Re: [Dorset] Scanning did work and half-hour later didn't?
Most modern network capable printers have a web interface these days, just find the IP address, stick that into a browser and you should get a status page, you should also be able to get to a configuration pages for the device. Like Terry and Peter I always assign static IP 's I learnt long ago after a session of hunt the device across a lan. Many years ago support company spent an entire day trying to connect a HP Inkjet printer to a Unix system including a multiplexer. Eventually the boss came and tried and realised that the inkjet would never work as it was a Winprinter (where half the firmware was delivered as windows software drivers). It will never work the boss shouted in frustration of the wasted day, he he had no answer as to why when it was first setup earlier in the day it printed a test page and two work related pages, then just stopped. Regards Tim H On 14/01/2022 16:58, PeterMerchant wrote: Can't help with the scanning, but I have a brother wireless printer HL-1210W series and like Terry have it programmed to a fixed IP address, and never have any trouble with it. The manual refers to saving the scanned item to a folder, but is this folder in a storage medium in the scanner or on your computer? As Terry suggests, can you browse to the printers web page and find any 'stored' scans? Peter On 14/01/2022 15:38, Terry Coles wrote: John, One or two thoughts which may or may not be helpful. On Friday, 14 January 2022 15:24:31 GMT JD wrote: I have a Brother laser printer - DCP1612W. Yesterday I scanned a couple of photos and saved them as jpg's. About a half-hour later I got only an error message each time I ran xsane, and that is still the case. Printing continues to work as normal. Caveat: I've never used any kind of Brother Device; I've always bought HP. Details: Ubuntu 20.04.3 The error message is: "Failed to open device 'brother4:net;dev0': Invalid argument." No thoughts on this. It's configured to connect via WLAN. The IP address appears in the router list occasionally but usually not. For various reasons, I've always configured utility devices on my home network with a static IP Address. On my HP, I can then browse to it's Home Page to check its status. Does you Brother have a web page? After: scanimage -L I get "device `brother4:net1;dev0' is a Brother *DCP1610W DCP1612W", so the correct model is known about. What did I do in the fateful 30 mins yesterday afternoon!? I have no idea really, but since it is not always visible in your Router settings, I would suspect that the WiFi connection isn't all it could be. -- Next meeting: Online, Jitsi, Tuesday, 2022-02-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Scanning did work and half-hour later didn't?
Can't help with the scanning, but I have a brother wireless printer HL-1210W series and like Terry have it programmed to a fixed IP address, and never have any trouble with it. The manual refers to saving the scanned item to a folder, but is this folder in a storage medium in the scanner or on your computer? As Terry suggests, can you browse to the printers web page and find any 'stored' scans? Peter On 14/01/2022 15:38, Terry Coles wrote: John, One or two thoughts which may or may not be helpful. On Friday, 14 January 2022 15:24:31 GMT JD wrote: I have a Brother laser printer - DCP1612W. Yesterday I scanned a couple of photos and saved them as jpg's. About a half-hour later I got only an error message each time I ran xsane, and that is still the case. Printing continues to work as normal. Caveat: I've never used any kind of Brother Device; I've always bought HP. Details: Ubuntu 20.04.3 The error message is: "Failed to open device 'brother4:net;dev0': Invalid argument." No thoughts on this. It's configured to connect via WLAN. The IP address appears in the router list occasionally but usually not. For various reasons, I've always configured utility devices on my home network with a static IP Address. On my HP, I can then browse to it's Home Page to check its status. Does you Brother have a web page? After: scanimage -L I get "device `brother4:net1;dev0' is a Brother *DCP1610W DCP1612W", so the correct model is known about. What did I do in the fateful 30 mins yesterday afternoon!? I have no idea really, but since it is not always visible in your Router settings, I would suspect that the WiFi connection isn't all it could be. -- Next meeting: Online, Jitsi, Tuesday, 2022-02-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Scanning did work and half-hour later didn't?
John, One or two thoughts which may or may not be helpful. On Friday, 14 January 2022 15:24:31 GMT JD wrote: > I have a Brother laser printer - DCP1612W. Yesterday I scanned a couple > of photos and saved them as jpg's. About a half-hour later I got only > an error message each time I ran xsane, and that is still the case. > Printing continues to work as normal. Caveat: I've never used any kind of Brother Device; I've always bought HP. > Details: > Ubuntu 20.04.3 > The error message is: "Failed to open device 'brother4:net;dev0': > Invalid argument." No thoughts on this. > It's configured to connect via WLAN. The IP address appears in the > router list occasionally but usually not. For various reasons, I've always configured utility devices on my home network with a static IP Address. On my HP, I can then browse to it's Home Page to check its status. Does you Brother have a web page? > After: scanimage -L > I get "device `brother4:net1;dev0' is a Brother *DCP1610W DCP1612W", so > the correct model is known about. What did I do in the fateful 30 mins yesterday afternoon!? I have no idea really, but since it is not always visible in your Router settings, I would suspect that the WiFi connection isn't all it could be. -- Terry Coles -- Next meeting: Online, Jitsi, Tuesday, 2022-02-01 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
