Bonjour printer disappears

[cinergi]

Hello,

I have a Canon MF632Cdw printer that I installed via Bonjour in High Sierra 10.13.2. The printer works fine initially. However, after a few hours it shows as Offline and I can no longer print to it. If I look at the list of Bonjour printers in macOS Preferences (as if I'm adding a new printer), the MF632Cdw shows up only as a "Scanner". If I reboot either my Mac or the printer, it is fine again (Online) and shows up as "Bonjour Multifunction" as it should, for another few hours. After that, it goes offline again and the problem repeats.

Any idea how to fix this? I'm not sure if it's a Canon or macOS issue, but another Canon Bonjour printer on the same LAN (an older MF4150) doesn't have this problem and is always stable.

Thanks,
cinergi

 

[BrianBaughn]

I'm thinking you're using wifi to connect that printer. I've had an MF8380cdw for a few years now and quickly gave up on wifi for it...changed to an ethernet connection. I'm pretty sure it was connection failures that led me to that. It's now connected to the LAN via ethernet but is set up via Bonjour.

Does the printer have a static local IP? If not, you might give that a try. I prefer to assign static IPs (DHCP reservations) via my router's firmware.

 

[cinergi]

I'm thinking you're using wifi to connect that printer. I've had an MF8380cdw for a few years now and quickly gave up on wifi for it...changed to an ethernet connection. I'm pretty sure it was connection failures that led me to that. It's now connected to the LAN via ethernet but is set up via Bonjour.

Does the printer have a static local IP? If not, you might give that a try. I prefer to assign static IPs (DHCP reservations) via my router's firmware.

You're correct, I'm currently using Wi-Fi for the printer. My next step is to try a wired connection, although that won't be easy in its location. The printer has a static DHCP reservation. I'm not convinced it's the Wi-Fi, because even when the printer is shown Offline on my Mac I can still go to its Web management page and access it via Airprint and Google Cloud Print.

-cinergi