Hewlett-Packard DeskJet 812C Printer Only Prints Half of an Image on One Page

A Hewlett-Packard (HP) DeskJet 812C printer that is connected to a parallel port may print half of an image on one page, eject the page, and continue to print some or all of the remaining image on a second page.

This behavior can occur if a Micro Solutions Backpack Parallel Port External CD-RW (Model #190130) is installed on your computer. The CD-RW shares the parallel port with other parallel devices, which can cause it to interfere with the HP DeskJet 812C printer and the Microsoft Windows 2000 print driver.

To resolve this behavior, you must perform the following steps:

1. Click Start, point to Settings, and then click Control Panel.
2. Locate Backpack Finder, and then click Finder Settings.
3. Make unavailable LPT Interrupts, LPT Port Type, and Backpack Detection.

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.