Printer issues after installing Mojave

Just a question to Apple since there are over 850 people (including me) with variations of the same issue: "Printing worked fine prior to macOS Mojave upgrade, but is broken since the OS upgrade".

• Is anyone from Apple looking into this issue to see what got broken? (Note: I've tried most of the fixes with no success at all and don't appreciate the tone of the answers implying this is something the customers need to fix.)
• Is this amount of chaos in the printer support world typical for a macOS upgrade? If not, is someone looking to see what was different about Mojave?

Ron

Hi Guys,

Similar issues here. Cannot get my MS Powerpoint to print slides (or save PDF version of them) with watermark in the background. My printer works or it saves the PDF, but the background watermark is missing from the PDF and paper printouts. I have tried "Save As...", "Export..." and "Print..." alternatives to create the PDF. This used to work fluently with all previous OSX versions.

Thanks,

Lare

Hi John same problem here. It makes me wonder what the #**$( is going on at apple. Oh update to the latest OS they tell you on the phone. What they don't tell you is that you're printer won't work after you do.

I also have some issues with my Canon ip8750 since I updated to Mojave (clean install). So I wrote the Canon support about my problem (much less options in the printer driver, no color adjustments for example). They answered that they were not able to reproduce the problem on their machines so basically it has to be my fault, maybe the driver wasn‘t installed correctly.

I made a screenshot that proved that the most recent driver was indeed installed and used on my system and also showed the behaviour I described. Then they replied that they cannot be 100% certain about it because they don‘t have any computer running Mojave to test it. But the latest drivers work perfectly on their Macs with High Sierra *facepalm*

So they suggested to compensate for the missing color adjustments in the driver by simply editing the photos before printing to the point where I like them *double facepalm*

I basically begged for help again and asked whether they could forward my request to the Canon Support in another country because there just hast to be someone with a Mac running Mojave at Canon. I mean someone has written that „compatible“ driver. Waiting for an answer now.

This is a guess, but it's possible the system is spinning when trying to load the vendor drivers.

One thing to try:

1) add another printer with the Generic PostScript PPD in AddPrinter

2) make that your default printer

3) launch an app, see if you can reach the print dialog.

If so, see if you can now switch to the Epson driver.

Hope this helps.

Same issue with an EPSON multifunction printer/scanner WF-7715. Just upgraded to Mojave from High Sierra.

As a printer, it doesn't connect automatically, I have to delete and re-configure it every time I switch it on.

As a scanner, it's no longer recognized by the computer. Deleting and re-configuring doesn't work.

What I have seen with other vendor drivers, now that most Apple apps have Library Validation in Mojave, is that the vendor settings are all placed in the Printer Features panel. Maybe they are named differently? With a few exceptions, the functionality shouldn't be gone.

I am not sure how to answer your question: this is a change of behavior in Mojave's increased security, so I don't think Apple would call it a "bug." On the other hand, I am not sure Canon would accept responsibility either. They could update their ppds, probably, to make the names understandable.

Maybe Apple and the vendors can figure out a way to "fix" this - Canon is not the only vendor affected.

I'm having trouble printing from Preview to my Canon Pixma MG7720 printer. I have different drop down options too and it will no longer print in Draft mode, even when set to draft. I can print in Draft mode when I print from my Chrome browser, so I think it must have to do with Preview. I updated the drivers from Canon and spoke with them. They told me to call Apple since it's printing fine from my browser. Anyones else having trouble printing from Preview specifically?

I experienced the same issue after upgrading to Mojave. I have an HP 8720 that dropped off the grid. So frustrated, had to stop everything I was doing to figure out what the **** happened to my printer. Thanks Tesserax for providing so many possibilities. I skipped to #4 on your list, reset my printing system in Mac...reinstalled software for HP and all is good now.

Same problem!!

So annoying... so far I can't use my 27" display with new laptop and now I can't print!! Apple please sort the bugs before releasing updates! Now to waste more time and reinstall High Sierra!

This worked.

10-10-2018 10:04 PM - edited 10-16-2018 10:16 PM

I can only speak for myself but I have tried all the suggested steps in the document you have linked.

In my case the problem is not that I am completely unable to print, but there are a few options missing in the printer driver when I try to print from native macOS applications like preview or safari.

Canon UK was able to reproduce the problem on their systems and got in touch with Canon Europe because of it. At least they told me so.

I have the same issue--I can print, but have issues when trying to print from Preview--the print options are different (some missing and some duplicates--print quality). Plus double-sided printing does not work even when selected.

I do not have the same issues when I try to print from Chrome or Adobe Acrobat--all options are available and work properly. SO, it seems to me that the issue exists in Preview as you've stated. Will you update here if you hear back from Canon about a resolution for the issue?