topic TR8520 offline after long idle time in Desktop Inkjet Printers

TR8520 offline after long idle time

rgalverson — Thu, 03 Feb 2022 04:06:19 GMT

We have a TR8520 printer which works great. However, after a period of idle time, it shows up in Windows as offline. The printer is set to never power off in the eco settings. When windows reports it as offline, it still responds to pings of its IP address, but not to attempts to visit its web page (by entering the IP address for the URL in chrome). The printer is connected to the internet by wired cabling. Is there some way to keep it from going offline?

Re: TR8520 offline after long idle time

shadowsports — Thu, 03 Feb 2022 15:29:15 GMT

Greetings,

The printer is connected via ethernet to your network.

Is it using a reserved or static IP?

If not, try assigning it a static IP on your router or the device performing DHCP on your network. Then retest.

Re: TR8520 offline after long idle time

rgalverson — Fri, 04 Feb 2022 00:36:40 GMT

Yes, I have reserved a static IP for the printer in my router.

Re: TR8520 offline after long idle time

shadowsports — Fri, 04 Feb 2022 16:11:43 GMT

Greetings,

Good. So tap the printer control panel and ensure the printer is awake.

Now open a browser and enter its IP. Can you see the printer's webserver?

If not, log into the router and view the list of attached devices. Ensure the IP you believe is assigned to the printer is in fact what the router shows it as its connected with.

Start with the above and verify those results.

If the IP is verified and the printer continues to go offline after a period of inactivity, I would try the following.

Open Control Panel > Device and Printers

Right-click on the printer and select remove device.

Now use the Add Printer Dialog Above. Choose the printer I want to add is not list at the bottom of the next dialog.

Then add printer using TCP/IP radio button. Press Next. Now enter the Printer's IP for the Hostname or IP. Press Next.

It should find drivers you installed previously. If it doesn't, point it at the Canon installation directory. Test printing.

Wait and observe if the printer goes offline again.

Re: TR8520 offline after long idle time

rgalverson — Sat, 05 Feb 2022 02:01:52 GMT

When it is stuck offline, I have tried to visit the printer web page. I get no response. (When it is not offline, I see ink levels and login options). In the offline state, the printer does respond to the control panel, but nothing I have tried seems to fix it besides power cycling.

Printer and router are consistent on the IP address that is being used. It does normally work, after all.

I am waiting for it to go offline again, now. That is, I had to print something so I power cycled it and it hasn't flaked out again yet. I did start up a http-ping hourly on it to see if that catches it going south.

Thanks for the responses.

Re: TR8520 offline after long idle time

rgalverson — Sun, 06 Feb 2022 18:41:51 GMT

I caught it dying last night at 10:30pm. Front panel completely operational, printed LAN settings list. I was surprised at the large amount of information printed (3 pages). It claimed no network problems. I noticed there was a "wired LAN DRX" setting that was enabled. I disabled it and the printer came back online (without power cycle or anything else). I am monitoring again with http-ping to see if that was just a kick in the pants or a permanent fix.

Re: TR8520 offline after long idle time

rgalverson — Wed, 09 Feb 2022 00:41:32 GMT

Fail. Unfortunately, the printer went offline again, after being idle for about 60 hours. I toggled wired LAN DRX back to enabled and the printer came back online. Just toggling that setting seems to reset something in the printer.

Re: TR8520 offline after long idle time

rgalverson — Fri, 11 Nov 2022 21:59:10 GMT

Update for anyone else suffering this. Canon was very nice and replaced my TR8520 with a new TR8620 printer. Unfortunately, the problem remains. As best as I can tell, something on the computer selected as the scan target is polling the printer incessantly. At some point the printer falls over and stop responding. Toggling LAN DRX is the quickest way to bring it back.

Re: TR8520 offline after long idle time

rgalverson — Mon, 02 Jan 2023 04:26:05 GMT

Woohoo! Canon somehow fixed this. There was a printer firmware update that came through in December that might have done it, or maybe the driver was updated around then. In any case, the printer has not gone offline since Dec 5, nearly a month ago.

Re: TR8520 offline after long idle time

normadel — Mon, 02 Jan 2023 08:10:43 GMT

There seems to be a misunderstanding here. For a printer (or, say, a NAS server on your network), you have to do TWO things:

1. On the router, you have to configure a range of IP addresses to be reserved for static IP use. It can be just one for the printer, or you can have a range of several in case you want any other static devices in the future.

2. THEN, you set the printer or whatever to have a static IP address (from the range you set aside in the router) rather than using DHCP.

Both things have to be done, or things can get confused.

On my home network, I have six devices with static IP addresses...four printers and two NAS file servers.

Re: TR8520 offline after long idle time

shadowsports — Mon, 02 Jan 2023 15:30:03 GMT

Greetings,

We covered that previously. His printer continued to go offline even though its static IP was not changing. It remained assigned on his router and device and remained pingable. Without more knowledge about this network hardware, Its hard to say with certainty what the issue was. He indicated the issue was resolved after a recent FW update. Its likely this changed something with power management or a networking protocol that affects the LAN's ability to communicate after long periods of inactivity.

Re: TR8520 offline after long idle time

rgalverson — Tue, 03 Jan 2023 00:25:03 GMT

Nothing changed with my networking or power management setup. I setup a test jig so I could run wireshark and catch all the traffic to the printer. I could see tons of http pings of some sort from one of my PCs (the one selected for scanning) to the printer. Usually it responded in milliseconds. However, it would eventually go offline and stop responding to those pings. I noticed that several of the pings just before dying had a super large response time (multiple seconds). I haven't run wireshark since it has been fixed to see if my PC is no longer pinging it incessantly. I suspect a "driver" change might have fixed it so the "scan" PC didn't ping it all the time. Alternately, the firmware fix might have fixed the printer so that even with tons of those pings it never goes offline. Or both.