HP Printer Error code 49 is shown when you try and print out a document on your system. It is normally caused by a failure in communication between your PC and your printer, making it impossible for your printer to be able to handle the work you want it to print. The issues that cause this error typically include the likes of invalid print commands, damaged data transfer, invalid operators and registry errors.

The first step to fix this error is to “calibrate” the printer. This basically means that you use several inbuilt Windows features to not only make sure your computer recognizes the printer, but is also able to perform operations & print from it. To do this, you basically just need to turn off the printer, and then turn it back on again. After you've done that, test out the printer from another application, and if that works, you should look at what could be causing the problem in the other application you were using. If the printer doesn't work on a different application, then you should “reinstall” the printer on your system by using the “Device Manager” to remove the device and then install it again.

This process should basically wipe your computer's current configuration for the printer, and reinstall it as a new device. It's often the case that printers will either become damaged, corrupt or unusable for some small, unknown problems on your PC. You may also wish to reinstall the drive for the device as well.

On top of doing that, you should repair the registry of your PC. This is very important, as the registry is often cited the biggest reason why HP printer errors will show up. The problem is that the ‘registry' is continually being saved incorrectly, causing many of its important files & settings to become damaged. This not only makes it very difficult for your PC to read the registry files it needs, but will also cause a variety of errors on your system, including Error Code 49.

The registry is basically a big database for your computer, which stores all sorts of important files and settings inside. This database is continually being used to help Windows save & recall a huge number of important settings on your system, and is what all Windows PCs use to run every day. In order to fix this database, which is probably one of the reasons why the 49 error is showing, you just need to use a “registry cleaner” application – a software tool designed to scan through all the registry files on your PC and fix the ones causing problems. You can get these tools from the Internet, and will basically clean out any potentially damaged settings on your computer to make it run much faster.

Source by Katie Martins