Level 1

48 points

hppostprocessing.bundle problem when printing

Just tried to print to my HP Color LaserJet Pro MFP M277 dw and got a message pop up on my iMac

“hpPostProcessing.bundle” will damage your computer. This file was downloaded on an unkown date.

With a tick box to Report Malware to Apple to protect others.

I have had this printer for a few years and it has operated without problem.

I am running Catalina 10.15.7 on iMac17,1.

NB I can see from the information below that Report Levels was added at 12:16 yesterday 22 October 2020. I know nothing about this.

The printer HP Color LaserJet MFP M277dw: has the following system inf

DO I Have a problem

Print Server: Local

Driver Version: 10.4

Default: Yes

System Printer Sharing: Yes

Shared: No

URI: dnssd://HP%20Color%20LaserJet%20MFP%20M277dw%20(B62615)._ipps._tcp.local./?uuid=564e4238-4a44-4844-5243-30e171b62615

PPD: HP Color LaserJet Pro MFP M277

PPD File Version: 19.13

PostScript Version: (3010.107) 3

CUPS Version: 2.3.1 (cups-483.6)

Scanning support: Yes

Scanning app: /Library/Image Capture/Devices/HP Scanner 3.app

Scanning app (bundleID path): -

Scanning app version: 4.18.1

Scanner UUID: 564E4238-4A44-4844-5243-30E171B62615

Printer Commands: ReportLevels

Added: Thursday, 22 October 2020 at 12:16:48 British Summer Time

CUPS filters:

hpPostProcessing:

Path: /Library/Printers/hp/filter/hpPostProcessing.bundle/Contents/MacOS/hpPostProcessing

Permissions: rwxr-xr-x

Version: 19.22.0

commandtohp:

Path: /Library/Printers/hp/cups/filters/commandtohp.filter/Contents/MacOS/commandtohp

Permissions: r-xr-xr-x

Version: 2.4.1

Fax support: No

Printer utility: /Library/Printers/hp/Utilities/HP Utility.app

Printer utility version: 5.37.1

PDEs:

hpPostScriptPDE.plugin:

Sandbox compliant: Yes

[Re-Titled by Moderator]

Posted on Oct 23, 2020 4:14 AM

Top-ranking reply

DiZoE

Level 4

3,033 points

Posted on Oct 25, 2020 9:11 PM

Hey there! I’ve seen this after the update as well, I think HP drivers are out of date and need to be updated to work. Here’s what worked:

First, if updating the software manually doesn’t work:

Open Finder, on the top menu hit Go > Computer > Macintosh HD (Usually) > Library > Printers.

Save (If you need to, and Delete the HP folder from there, (You’ll notice when clicking “Show in Finder” when you get the errors, these are where the files are, in this case old, outdated drivers and files).

Once deleted, open System Preferences > Printers and Scanners.

Right click (or Control click) select “Reset Printing System”, (This will delete any existing Printers and Scanners).

Once done:

If USB Printer, dis connect/re connect, you may see the option to “Install” the new HP software.

If a wireless “AirPrinter”, just hit the “+” sign to re-add the printer and select “Add”.

Do a test print to make sure it’s working again!

This is Gatekeeper, Mac’s security doing its job, most likely if you’re getting that error message, it’s a good thing to remove the older software.

Hope it all goes well!

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299 replies

woodchal Author

Level 1

48 points

Nov 10, 2020 3:38 PM in response to rccharles

Glove 12345 - you are blasting off at the wrong company

We (HP) unintentionally revoked credentials on some older versions of Mac drivers. This caused a temporary disruption for those customers and we are working with Apple to restore the drivers.

See this article and the previous 19 pages https://www.theregister.com/2020/10/23/hp_printer_macos/

Alan@CU

Level 1

14 points

Oct 25, 2020 7:21 AM in response to woodchal

Apple Support was unable to tell me this, but HP Support said try this: https://support.apple.com/kb/DL1888?viewlocale=en_US&locale=en_US It is HP Printer Drivers v5.1 for OS X

benwiggy

Level 4

1,491 points

Oct 25, 2020 7:48 AM in response to arifsha18

Google "Apple HP print drivers".

You will see "HP Printer Drivers v5.1 for OS X - Apple Support" at the top of the list. Click on it.

Download the software from the page.

Oct 25, 2020 8:58 AM in response to woodchal

Apple just released a supplement to the 10.15.7 update that fixes this issue.

To install the update Click the -->About this Mac --> Software update

allensn

Level 1

16 points

Oct 25, 2020 10:24 AM in response to hamza59

Download and install the new HP printer drivers from apple via this link:

https://support.apple.com/kb/DL1888

NigleB

Level 1

4 points

Oct 29, 2020 7:30 AM in response to sharbers

Remove the printer again, then restart your Mac. After restart, add the printer but do not use the HP drivers, use "AirPrint" or "Secure AirPrint" and it should work.

Old Toad

Level 10

215,882 points

Nov 10, 2020 4:15 PM in response to nydepot

Have you read this Apple document: If your HP printer doesn't work and you see a warning that HP software '...will damage your computer' - Apple Support

Oct 23, 2020 12:47 PM in response to woodchal

I just had this same issue, while before I had been using the drivers directly from HP, I removed the printer from the System Preferences, then re-added it. I'm using a networked printer at home, but if your printer is able to use Bonjour, it should work as well, or at least hopefully.

You will need to go to System preferences, the to printers & scanners. When re-adding it you will likely get "“fax.backend” will damage your computer." Uncheck report... then click ok. If you see your printer in the print dialog box, select it (mine is setup for bonjour), the at the bottom drop down "Use" select "Auto Select" for your driver. Wait until is finishes, then select add. Should it still not work after adding it back, remove it again, but this time try using "Secure Airprint" if you have that option available.

Hopefully this will help until a patch is released.

FLEX360

Level 1

4 points

Oct 23, 2020 1:08 PM in response to jeff-4

This fixes it for me:

uninstall printer.
reinstall using the following settings:

Install by IP address, select the IPP protocol

Next make sure you select Generic PostScript printer as the driver. and install.

mulberry58

Level 6

10,436 points

Oct 23, 2020 1:46 PM in response to woodchal

If your HP printer supports AirPrint, go to SystemPreferences, Printers and scanners. Select the printer and remove it by clicking on the -(minus) sign (unlock the padlock if necessary). Then click on the + sign and add it again, using AirPrint https://support.apple.com/guide/macbook-air/use-airprint-apd98b1f28d0/mac

I managed to help a friend this way today

1234klhb

Level 1

4 points

Oct 24, 2020 11:24 AM in response to woodchal

My solution for Catalina iMac and an HP P1505. I googled HP and the model number and updates. In my case : hp laserjet update p1505

I got the below page as a hit. Went to this page: It's the HP driver page. There were new drivers in August.

https://support.hp.com/us-en/drivers/selfservice/hp-laserjet-p1500-printer-series/3435666/model/3435667

Downloaded the drivers. At some point there was a warning that this might not be legit, but since I had gone there, I clicked OPEN ANWAY (or whatever it said). It downloaded, I allowed installation, and everything runs fine now.

Oct 24, 2020 12:38 PM in response to jeff-4

Same problem today with HP 8710 and IMac 10.15.7

HP tech support got me printing again by removing the printer then reinstalling in system preferences using Air Print instead of secure air print in kind. They said it's a workaround until they fix the problem. Does anyone know how to remove the pop ups. I have tried looking up any hp Plist files in Launch Agents and Launch Daemons with no luck.

Oct 24, 2020 10:55 PM in response to woodchal

Had the same problem and seems to be caused by the new Catalina upgrade.

To get a document printing again, I did the following:

1) Added a new printer (this might not be absolutely necessary, just indicating my steps)

2) Deleted the file in the error message, click Finder button then bin it

3) Tried to print a document and because that file was missing it asked if I wanted to install the drivers so I said yes

4) Clicked through the error messages again

5) The document now prints

Not perfect but will get you going. I now click through the error messages.

Hope there is a fix for this as I'm reluctant to install new updates on my Mac if these things keep happening.

katspurs

Level 1

4 points

Oct 25, 2020 5:57 AM in response to woodchal

Have the same issue and annoyingly just ordered a new printer :(

The fix is to fully delete HP drivers (not simply remove the printer). Search for the HP driver, delete and then fully reinstall the HP driver which takes a few minutes.

Note there's a Catalina update to do first. This should work :)

benwiggy

Level 4

1,491 points

Oct 25, 2020 7:44 AM in response to arifsha18

Have you read this thread?

Apparently, Apple have renewed the old certificate, so printer should now work even without installing newer drivers.

But if that's not happening for you, download the HP print drivers from apple.

And if you object to the idea of Apple remotely killing software on your Mac, do leave them feedback on the feedback site.

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hppostprocessing.bundle problem when printing