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HP Laserjet 2550L not recognised by Windows 7

We have a HP Laserjet 2550L connected to our XP PC by USB. We have now got a Windows 7 Home Premium machine and have tried to attach the printer using the Universal Printer Driver supplied by the HP website, but the printer is showing in the 'Unspecified' category in Devices and Printers.

During the installation process for the UPD, the 'Found Hardware' wizard gave two options - local printer (which stated not USB printers) and network printer - there wasn't a USB option?! We then selected the local printer option anyway and selected Virtual USB port and the UPD installation program said installed successfully.

The printer is still shown as 'Unspecified' but the printer software is there, as we can access the printer properties via print manager when trying a test page - unsuccesfully. The printer also doesn't appear in the list of printers in Word, etc.

Any help appreciated, Thanks.
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CSHTech
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CSHTech
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John HurstBusiness Consultant (Owner)Commented:
In Windows 7, go to the Printers and Devices dialogue window and select Add a Printer. Pick Local and then where it says Have Disk, use the option beside it to run Windows Updates (for printers). This should add a lot of printers to your system.

Now see if you can add the HP2550 as a local printer. I have the HP 2500 series in my printer list. If you can add it as a local printer, now go into the Printer Properties and change the Port to USB. .... Thinkpads_User
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CSHTechAuthor Commented:
Thanks for your quick response.

A quick question - would you suggest that the USB printer is connected and switched on during the whole process or just part way through?
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John HurstBusiness Consultant (Owner)Commented:
I think if you have the Windows driver, and install it as a local printer, it won't matter. You will want it connected when you change the PORT from LPT1 (local) to USB. ... Thinkpads_User
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CSHTechAuthor Commented:
Thanks. I'll try this and post back.
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CSHTechAuthor Commented:
Hi

Installed as a local printer and showed in the correct category as a 2550 PCL5 printer. When I changed from LPT to USB though, no test page can be printed.

Also when I tried to configure the port I had the error message "error has occurred" and could not configure the port. Interestingly, the device appeared in the 'unspecified' category again as soon as it was switched on even though the printer was showing in the 'printer' category.

BTW there are no warnings in Device Manager.

Am a bit stumped at this point. Any thoughts?
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John HurstBusiness Consultant (Owner)Commented:
I don't. If you tried the driver supplied by HP (your post) and the driver supplied by Windows (my post) and it doesn't work, then it may not be a supported printer.

One possibility (one that I employ) is to put the printer on a separate HP Print Server and connect that way (over your network). The plus side of this is that many printers can be made to work this way, and also any computer on your network can use the printer. The minus side is the cost of acquiring a print server.

... Thinkpads_User
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CSHTechAuthor Commented:
Hi

It's definately a supported printer as Microsoft show it as compatible and the HP website shows drivers are in Win 7.

The printer itself has a USB and a Centronics socket only.
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John HurstBusiness Consultant (Owner)Commented:
The Centronics socket will work with a standard print server.

Another thing you might try is to uninstall all the HP print drivers for the HP 2550L (there may only be one, but check). Then go into the Printer and Devices dialogue box. Click on any printer there and notice the menu bar adds Print Server Properties. Click on that and then click on Drivers. Remove any HP 2550L drivers.

Now get the documentation from HP on how to install this printer. They vary on when to connect the USB connector. Use the HP Driver for Windows 7 (pay attention to 32-bit or 64-bit) and install according to the directions.  

... Thinkpads_User
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CSHTechAuthor Commented:
I will try to uninstall the printer drivers and try again.

The HP driver on the 2550L product page is the Universal Printer Driver, which I have tried but which unfortunately does not work.
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John HurstBusiness Consultant (Owner)Commented:
I looked there and, yes, they seem to only have universal drivers. They have both PCL5 and PCL6 drivers, so check that of course. ... Thinkpads_User
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CSHTechAuthor Commented:
Uninstalled, tried the PCL6 driver but still no luck.

Uninstalled again, ran through the printer troubleshooter and eventually had a working printer with a completely different driver that had been automatically downloaded (even though the driver list had been updated).

Thanks for your help - would not have resolved without you pointing me in the right direction. :)

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John HurstBusiness Consultant (Owner)Commented:
You are most welcome, and I was pleased to help. .... Thinkpads_User
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