WHAT IS - GET /DevMgmt/ProductStatusDyn.xml HTTP/1.1

I have solved the mystery.
I had been getting these odd printuts years ago and eventually got them to stop. I didn't take notes then so I don't remember what I did but I think I just re-installed the printer. The problem came back recently, and this time, I wanted to track the cause rather than just going thru another shotgun approach of "try this, try that". I was asking to see if anyone actually knew the cause.
I eventually had the idea of checking the Wndows/Applications Log reports in Computer Management and got some hints from that but that ultimately did not locate the problem source. Finding an intermittant problem like this is difficult because of its random nature.
I wanted to see what the computer was running when the rogue printouts occured, so I found a software package called Process Monitor. It's free online. The filename is "Promon64.exe". When it runs, it spits out the thousands of commands that the computer executes in real time (w/time stamp). I set up a quick access Icon so I could immediately start running it the next time the PC started acting up.
What I saw was hundreds and hundreds of commands originating from a service called PrintScanDoctor. It was being run by the Windows Task Scheduler. I went to Task Scheduler and disabled PrintScanDoctor.
Problem sorved. No more crazy printing.
Print Doctor is an HP package that was probably installed when I got the printer about 15 years ago.
This time, I'm making notes and making sure to share my discovery with other HP printer owners.
Ron

Dear customer.

Thank you for reaching out here in the Microsoft Community.

In your description, you are automatically printing some unusual messages when using your HP printer.

I noticed that I noticed that you did some searching on this issue and tried to find a solution, thank you for the effort you put in to resolve this issue, I do understand the frustration of having an anomaly with the printer at the moment.

By what means are you currently connected to the printer? Is it via cable or network? Are you using some third party network proxy software?

We have done some research for you and found that most of the users who are having this problem are using Windows and HP printers, and we have determined that this may be a result of some compatibility issues that currently exist between HP printers and Windows.

If conditions allow, you can try to use other brands of printers to see if you have the same problem.

We did some searches in HP's forums and found that some users solved the problem by completely deleting all the software and drivers for their HP printers and then re-downloading and installing them after that, you can try that too.

Here is the link to get the driver

https://support.hp.com/us-en/drivers/hp-deskjet-6940-printer-series/model/468003

Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate and safe information. Watch out for ads on the site that may advertise products frequently classified as PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

In addition, you can also try the following steps

1 Go to Printers and select your Brother printer

2 Right-click and select “Printer Properties”.

3 Go to the “Device Settings” tab

4 Go to the Installable Options setting

5 Notification of printer status: Disabled

If none of the above methods help you, you can refer to the following link to enter Safe Mode

Windows startup settings - Microsoft Support

Try to use the printer in Safe Mode, if it doesn't work, then please uninstall the current printer driver in Safe Mode and reinstall the previously downloaded driver from HP to see if you have the same problem after that.

We also found something very similar to your issue on HP's forums, if you would like to be able to contact HP support in real time, you can do so at the following link

https://support.hp.com/us-en/contact?openCLC=true

Disclaimer: Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology.

Thank you for your understanding and support.

Best regards,

Zev - MSFT | Microsoft Community Support Specialist

Dear customer.

Thank you for your reply.

I understand that you have explored this issue further.

You seem to have found “Universal Print” which may be the source of the problem.

We are not sure at this time what effect disabling this service will have on the system, but we can try it for now with just the Microsoft service in place.

I recommend trying a clean boot which starts Windows with a minimal set of drivers and startup programs. It can be used to determine whether a background service or program is interfering or causing a problem.

These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step.

In a clean boot, try using the printer and see if you have the same problem.

In the meantime, please refer to some of the options in my previous reply, such as reinstalling the driver or trying it in Safe Mode.

If none of the above options work, you can search for “Services” in the taskbar, open it, try to find “Universal Print”, and then disable it to see if the same problem exists.

Additionally, we still recommend that you contact HP support to help you in any way they can.

Thank you for your understanding and support.

Best regards,

Zev - MSFT | Microsoft Community Support Specialist

I now have more insight into this problem. Whenever the problem occurs, the printer first loads a sheet of paper, then the light blinks that indicates communication with the computer. The actual printing happens many minutes later. It's when the printer loads the sheet of paper that should be considered as the beginning on these events.

Several times, when this occurred, I' recorded the time then looked into COMPUTER MANAGEMENT > EVENT VIEWER . > WINOWS LOGS > APPLICATION and found that events at that time were initiated by a service called "Universal Print".

The following is the description of the event:

"The description for Event ID 1 from source Universal Print cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

Initialization Successful. Enabled=false, CloudPrintSolution=Unknown, DiscoveryEndpoint=, OAuthAuthority=, OAuthClientId=, DiscoveryResourceId=, PrintResourceId=
mcpmanagementservice.dll

The locale specific resource for the desired message is not present"

I hope I can disable this service or at least disconnect my printer from it. This approach looks promising.

Thank you for your response and advice.

My printer is connected via USB, I am running Windows 11 and if memory serves, this began after upgrading to Win 11.

When these random printouts occur, it all happens in slow motion. First, the printer will begin by starting to feed a page. Minutes later, the activity light will blink for a long time as it does when a document is being sent to it for printing. After many more minutes, it will print the 8 lines (always the same words), then the light stops flashing.

I was hoping that someone has actually narrowed down the cause and can say what process is causing this, since it actually prints out the commands that are being executed. I suppose anyone with that level of insight is probably not monitoring forums like this.

I was looking at the system logs in Computer Management to see if anything looks suspiciously like what is being printed. Obviously, it has something to do with Device Manager. The next time it happens, I'll look through those logs to see if anything coincides with these events.