HP LaserJet Pro MFP M225 and new MFP M227 printing multiple pages with code

[RachRG]

After my specific print job is complete, pages continue to be endlessly printing with the following: 

POST /ipp/printer HTTP.1.1  

Content-Length:  179 

Content-type:  application/ipp

HOST:  localhost

it was doing this on my MFP225dw and now on my new MFP227fdn.  

[Nal_NR]

Hi @RachRG,

Welcome to the HP Support Community. 

I'd like to help!

The "job" is coming from somewhere - the printer is following those instructions.  When the printer is switched on, the printer accepts input and starts printing.  This part is normal process.

Consider removing most, or even all, paper from the tray.

Track down the offending "job".

If you do not recognize the content at all, the print job may be the result of someone else sending job(s) to your printer.

The usual offending "suspects" include:

1. Neighbors that have the wireless password to your network.
2. Neighbors or strangers printing to your printer and there is no password required to access the network.
3. A mobile device that is sending a job directly to the printer without interfacing with the computer.  This could be one of "your" devices or any local mobile device that has access to your wireless network.
4. An ePrint job - likely from someone who has figured out your printer's email address (and is not blocked from sending print jobs).
5. Print-Spam, possibly from a Printing virus / malware as described in the recent news on the subject of people having printers "hacked".  This access, too, is perhaps a result of lax security on your network.

If you feel the print job is coming from one of you own devices, Restart everything, including any computers, phones, printers, or mobile devices, and your router.   

1. Log out, switch off every device on the network.
2. Switch on the router, wait for it to completely boot > Switch on the computer and log in.
3. Switch on the printer - add a bit of paper to the tray, not more than (about) five sheets.
4. Check.
5. Boot / Start devices (phones, mobile tablets) one at a time - check to see if the problem resurfaces after a particular device is booted.

If your printer has its own email address, log into your HP Connected account, check your printer Settings > Verify that only "allowed" senders have access (as opposed to setting = "Anyone").  

HP Connected Login

Check your security settings. 

Reinforce security by changing passwords on the router itself, on the router configuration for your wireless network, on your network devices (mandatory after you change the network wireless password), check router logs.

If the above steps do not fix the issue, let's try NVRAM Reset. 

The reset instructions are specific for your printer and performing those steps on a different printer may brick the device. 

I've sent you a private message with reset instructions, follow the reset instruction to perform a full reset and re-initialize the printer. 

In order to access your private messages, click the private message icon on the upper right corner of your HP Community profile, next to your profile Name or simply click on this link.

Hope this helps! Keep me posted. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!