Can't print from Acrobat DC "/private/var/spool/cups/tmp/" error in Mojave 10.14.6

Question

I recently updated my late 2015 iMac to Catalina, but found it impossibly slow. So I restored my computer using Time Machine to Mojave 10.14.6. My printer is an Epson Workforce 645.

Now whenever I try to print from Acrobat DC I get this error:

Printing - Can't open "/private/var/spool/cups/tmp/xxxxxxxxxxxxx"

I have tried the following:

-restarting printer

-deleting and adding printer

-resetting printer system

-uninstalling Acrobat DC and reinstalling from the CC app

-restoring Acrobat preferences to default

-updating Acrobat

-updating printer driver

-looking for the "private/var/spool/cups/tmp/" path in Time Machine (didn't find it)

I can print from other applications (Safari, Preview, TextEdit, etc.)

I have gone through the instructions on several threads with this similar issue and none of them have resolved the problem. I don't want to update to Catalina again because that was the whole problem in the first place.

I know there are workarounds, like printing from other applications or using "print as image" in Acrobat (which worked once but is now grayed out), but I need to be able to print directly from Acrobat so I can use its printing features.

EmR1010 · Accepted Answer

UPDATE: After working with Adobe support (who also couldn't solve the problem) I was waiting to hear back from the "escalation team" when I had to delete and re-add the printer. Suddenly it's working. I have no idea why because I didn't do anything else, but I'm happy to be able to print.

ls_rbls · Answer

Hi,

In unix systems you are not supposed to delete or mess around with temp data contained in the var directories. It works differently as opposed to the convenient implementation in MS Windows which allows pretty much any user to empty out the TEMP and RECENT folders by deleting temporary files.

The first thing you should try is to go to the printing device manufacturer website and download the latest driver for that printer to include the technical manuals on how to properly uninstall, reinstall, and configure your CUPS printing server and scanning software.

You can reset the printer queue in your macOS using command line interface, by opening your terminal and executing something like this:

/etc/init.d/cups restart

OR, You can also access admin configuration options via your web browser by typing in the URL bar:

http://localhost:631

You will have a GUI interface that is very straight forward with the aid of the manufacturers step by step guides or by googling the how to's.

You can also refer to cups.org website for the latest info on updates and release notes about CUPS.

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