Question about HP DeskJet 3550 InkJet Printer

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Communication between computer and device

I cannot get information about ink level of HP 3650. I get the message: "The computer is unable to establish two-way communication with the device". Is there a solution?

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  • Anonymous Apr 22, 2008

    necesito los controladores

  • Anonymous May 21, 2009

    its ***



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Hi, I bought the deskjet 3050 printer and recieved it yesterday. I have not yet been able to print any documents from my laptop. I have correctly installed the ink cartridges and the printer is able to...

It looks that you can receive data (eg.scanned) from your MFC but cannot send information to it {eg. reference to 2-ways communications not working):
I suspect that it is a 'Firewall' problem or 'Antivirus' issue: review possible logs and try turning both Firewall and Antivirus to check if they are the problems.

Good luck!

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Unable to establish two-way communication error

What kind of cable is being used to communicate?

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Unable to establish two-way communication error

1)right click the my computer icon
2)click properties and then click hardware n go to device manager.
3)uninstall all usb ports and then scan for hardware changes
4)ur pc will detect your printer and ask for printer drivers
5)re load drivers and your pc will communicate with your printer
6)for reloding install the cd follow the instructions on the screen and click next
7)restart when the printer is loded.connect the wires and cords properly.

Nov 14, 2008 | HP Photosmart C6180 All-In-One InkJet...

1 Answer

Cannot See Estimated Ink Levels on Printer Toolbox

Unplug the ethernet cable - wait a couple seconds - plug the ethernet cable back in - try again

Mar 18, 2008 | HP Photosmart 3310 Printer

6 Answers

Cannot See Estimated Ink Levels on Printer Toolbox

I came across this similar problem and spent days trying to figure it out. I knew I was close when I tried to start the HPZ12 service and it kept failing with "unable to find the specified file". I traced it with a process monitor and found that it was looking for a registry key that was not present. Specifically:

HKLM\System\CurrentCosntrolSet\Services\Pml Driver HPZ12\Parameters

It was looking for the string:


which should be set to:


(or something similar).

The unfortunate thing is that no matter how many times you install and uninstall the HP drivers, then don't reset the registry keys for the HPZ12 service. In the end, I ended up doing the following:

1. Uninstall software and reboot
2. Go through registry editor and delete the PML key (just did a search for all PML occurences)
3. Deleted the c:\program files\Hewlett-Packard directory
4. Deleted the c:\program files\HP directory
5. Deleted the c:\windows\system32\spool\drivers\w32x86\ contents (anything that referred to an HP printer or driver)
6. Deleted the HKLM\Software\Hewlett-Packard registry key
7. Rebooted
8. Reinstalled and everything worked.

I suggest you backup any registry keys prior to deleting them in case you make a mistake. You can use the Export feature on the right-click context menu to save each key you delete, or use some tool to make a backup of your registry prior to making these changes. Similarly, for the files, I renamed directories or created backups of their contents.

Once I reinstalled, I found that there were TONS of new registry keys added that weren't there before. So the real problem is with HPs install/uninstall. It doesn't clean up properly and any aborted or failed instalation will leave the drivers in a poor state.

Hope that helps.


Feb 19, 2008 | Office Equipment & Supplies

2 Answers

Cannot See Estimated Ink Levels on Printer Toolbox

Hi Dganske,

If your printer is installed or connected in network then you cannot see the ink levels in printer toolbox.

I suggest you to contact HP chat support, this support is free of cost and online technician will help you with any All-in-one issue.

Please click on the web link given below and select your product and start chating online to get the issue fixed.

Have a great day!

Oct 14, 2007 | HP Photosmart C3180 All-In-One InkJet...

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