A BLANK page prints between each print job

Does it do this on all jobs? If yes, look for a function either in the general setup of the device or the driver for job separation. Having this function on causes the printer to print a blank page between print jobs to help separate them. This not to be confused with the job separation function of the 3 bin sorter where print, fax and copy jobs come out in different bins.

See if there is an option in your settings to print a "job owner" page after each job. That's not what it's actually called but I had a similar issue with a Canon printer and found that you can have the printer automatically print a page after the job that identifies who sent the job to the printer. It's the last page so it lands on top of a finished job and separates it from other jobs sent to the printer before you have a chance to get yours. If you don't have network identifications associated with users it may just print a blank page as a separator.

MAKE SURE THAT ALONG WITH THE SOFTWARE YOU INSTALL THE PROPER DRIVERS

You may have the "separator page" option turned on in your print driver. This option will insert a blank page after each print job to separate one print job from another. Simply uncheck the box by the separator page option and you should be back to normal !

What make and model printer ?
There are a variety of reasons why a printer may feed a blank page through. This is, in some cases, an error. In other cases though it is a mistake in the page count or a simple matter of the printer trying to maintain itself.
Maintenance If a user has just loaded new paper into the printer or if an error message has recently been cleared the printer may run a blank page through.
Usually this is to make sure that the print path is now clear and that the next sheet it positioned correctly for printing.
Page Count
When a document is edited there is sometimes a blank sheet left at the end of the document. So, for example, if a 10 page document is edited down to nine pages, the computer and printer still sometimes read it as a 10-page document when a user hits the print key.
Page Separator
In some cases where a large number of documents are being printed, users may set a blank page separator.
This puts a blank page between copies of a document to show where one ends and the next begins.
A quick look at the printer's settings or control panel will tell you if this option has been turned on.
Fix a Printer Spool Error
When you send a job to your local or network printer, the print spooler is what keeps track of that job's location in the queue.
If the print spooler is not running, your job will not be able to reach the printer, so it is important to know how to resolve print spooler errors when they occur.

Click on the "Start" button and choose "Control Panel" from the menu.
Double-click the "Printers and Faxes" icon and locate your printer.
Double-click on the printer to get the list of jobs in the queue.
If you see any jobs in an error status, right-click on those jobs and choose "Cancel" from the menu.

Close the "Printers and Faxes" window and double-click on the "Administrative Tools" icon. Choose "Services" from the menu.
Scroll through the list until you see "Print Spooler," then right-click and choose "Start" from the drop-down list.
This restarts your print spooler and allow your jobs to print.
Right-click on "Print Spooler" again and choose "Properties" from the menu.
Go to the "Startup" option and set it to "Automatic."
This ensures that the print spooler starts each time your computer does.
Print spooler
http://social.technet.microsoft.com/Forums/en/itprovistaprinting/thread/cad5221a-d21b-4bf0-8e86-cacae254cb52

There is an option in the print driver to print a separation page (typically just a blank page unless you specify otherwise) so that each person's print jobs can be differentiated easily.

This option probably got enabled somehow on her PC. Have her go into the print driver's properties (right click on the Canon in the list of printers and select Properties) and look for the option that says separation page or separator page and deselect it. Then click Apply or OK, and it should be good.

often in the Printer properties, there is a tickbox, to feed a blank sheet between print jobs. this is to assist in keeping print jobs seperated on busy printers.

Here is the way to change the setting on a single print job:

1. Click the Start button
2. Point to Settings
3. Point to Printers (Windows 2000) or Printers and Faxes (Windows XP).
4. Right-click the HP LaserJet driver you plan to use (2420)
5. Click Properties .
6. On the Advanced tab, uncheck Separator Page.
7. Click OK to return to the Advanced tab.
8. Click OK to save the settings.

Making the change a permanent thing For All print Jobs on this printer:

1. Click the Start button.
2. Point to Settings .
3. Point to Printers (Windows 2000) or Printers and Faxes (Windows XP).
4. Right-click the HP Printer you want to correct the settings to.
   
5. Click Properties .
6. On the Advanced tab, click Printing Defaults .
7. Change any of the settings on the tabs. These settings become the defaults for the printer.
8. Click OK to return to the Advanced tab.
9. Click OK to save the settings and to close the printer driver.

This is usually the Transfer kit, but if the image drum or one of the power supplies goes bad, that can also give blank pages. The Drum problem for no print is usually a grounding/connection problem. Power Supplies are a complicated repair, but these printers aren't too bad to work on. You can buy good used one's fairly cheap on ebay, though. Should consider going to a later model CLJ if you replace with a used, though.

You may need an imaging unit. VERY expensive.

Hi Did you have any print jobs sent to the printer before replacing the printhead. It seems that the printer is trying to print a job and since the usb cable has been disconnected and reconnected the printer is printing blank pages or misc text.