I have printer HP2015dn which keeps printing out extra pages with GET /DevMgmt /DiscoveryTree.xml HTTP/1.1 Host: 127.0.0.1 :8080

The answer is here. You have to go to Settings and turn off Notifications.

https://www.google.com/search?q=get%2Fdevmgmt%2Fdiscoverytree.xml+http%2F1.1&


..

something to do with self discovery according to
https://h30434.www3.hp.com/t5/LaserJet-Printing/Unwanted-pages-printing-with-quot-GET-DevMgmt-Discoverytree/td-p/1293907
or
windows 10
https://tech.lds.org/forum/viewtopic.php?t=25265

To resolve this behavior, clear the Document Properties check box. To do this, follow these steps:

Word 2007

1. Click the Microsoft Office Button, and then click Word Options.
2. In the Printing Options area box, click to clear the Print document properties check box, and then click OK.

Word 2000, 2002 and 2003

1. On the Tools menu, click Options, and then click the Print tab.
2. In the Include with document area, click to clear the Document Properties check box, and then click OK.

If you send a print job such as word sometimes you actually have a second page but it will be blank. look at your document to see if there is a page 2.
Also under the settings of the printer you will find where it says copies, that needs to be set to one(1). If this is a network printer simply type in the address of the printer in the address bar of Internet Explorer and the printer will appear with all the settings and paper trays etc. If it has a screen on the printer go to configuration and look in there for "copies" then change it to "1"

GET /DevMgmt/DiscoveryTree.xml HTTP / 1.1

Slow printing can happen for a number of different reasons. Lexmark printers are host-based printers.

Please try use the Post Script print driver or Host Based print driver. You may go support. lexmark.com to download this, or may also click the link http://bit.ly/pYTmwf

For further assistance, please contact Lexmark Technical Support.

Hi

check here

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Most likey you have an incorrect emulation setting on the host side. What is the current config on the printer?

jack

I found this document setting up Crystal Reports for your printer. I hope this helps. http://support.businessobjects.com/communityCS/TechnicalPapers/cr_printer_driver_options.pdf