⟐ Answered 四月 12, 2026 at 8:40 GMT-7

⟐ Answered 三月 16, 2026 at 4:16 GMT-7

The printer works beautiful, except for when it isn't used for a couple days, which it will say "Offline". Troubleshooting in Windows 10 just says it's not powered on, but it clearly is. When I check the network status on the printer, it says still connected. I'm unable to ping it when it says offline.

Sometimes rebooting the router will cause it to come back, but usually I have to remove the printer completely, and re-add it manually using the IP Address. It doesn't come up as an addable device for some reason, which is the reason for manually adding it.

One possible fix I found said to go to the port configuration and disable SNMP. (SNMP Fix Tutorial)However, when I click on "Configure Port...", I get an error. Also, the port name is very odd looking.

I have a picture of the error located here = Port error

Is there something I can do to resolve this that I'm not aware of?

Thank you for the response. It makes complete sense.

So I deleted the printer, and re-added it using the hostname instead of the IP address. I have the epson software already installed, and it says all drivers are up to date. When I try to run the Epson Event Manager, with the printer added, it says

And I still get the following error when I try to configure the port =

I will let you know if/when it goes offline again.

This issue started before I ever started using the IP address to add it.

Thank you again for responding.

⟐ Answered 四月 13, 2026 at 4:23 GMT-7

I’m having an issue with my printer showing an error that the waste ink pad (waste ink absorber) is full. The printer stopped working completely because of this.

I tried to open the printer to access the waste ink pads, but I couldn’t reach them—they seem to be located deep inside the printer and not easily accessible.

I need help with:

How to access the waste ink pad inside the printer

Whether there is a way to reset the waste ink counter without full disassembly

If there is any software tool or service mode reset available for this model

Any step-by-step guidance or diagrams would be appreciated.

⟐ Answer edited 四月 12, 2026 at 20:04 GMT-7

I've had the bad idea to upgrade the firmware of our Epson WF-7840 (version CD17M6 now).

Now, our non epson cartridges are not recognised anymore.

I've search the web about how to downgrade the firmware. I found the procedure, found how to put the printer in "recovery mode" and, on the Epson website, I found the "Recovery Mode Firmware version CB08LC" for the Epson WF-7840.

But it doesn't work...

First problem, the model of the printer does not appear in the "Epson firmware updater" but it sees that a printer is connected.

Second problem, and it is where it stops, when I launch the Update, it fails with a message on the printer's screen "Data file not found".

I tried with my mac (macbook pro 16" m1 max) and with an older macbook pro from 2009 with the same result. I tried with another USB cable and still no luck.

What am I doing wrong?

⟐ Commented 四月 12, 2026 at 10:25 GMT-7

⟐ Commented 四月 12, 2026 at 10:10 GMT-7

Hoping some could help!

⟐ Answered 四月 12, 2026 at 4:24 GMT-7

⟐ Answered 四月 12, 2026 at 2:34 GMT-7

Here is other messages that shows on the printer

1. Ink Cartridge(s) Problem The following Ink Cartridges must be replaced. I have brand new ink cartridges.

2. It was printing about 2 weeks ago, when I replaced the empty ink cartridge. Then, it stopped. I called HP and they sent another one. Now, it will not accept the new cartridge. 

3. I have downloaded print drivers from HP.com and I have uninstalled and reinstalled the printer software about 4x.

⟐ Answered 四月 10, 2026 at 23:02 GMT-7

Thanks

⟐ Commented 四月 09, 2026 at 13:51 GMT-7

⟐ Commented 四月 09, 2026 at 9:59 GMT-7

⟐ Commented 四月 09, 2026 at 2:23 GMT-7