HP LaserJet 5100

Using the printer cleaning page:
If toner specks appear on the front or back side of print jobs, follow the procedure below. From the printer control panel, do the following:

1. Press [MENU] until PRINT QUALITY MENU appears.
   
2. Press [ITEM]until CREATE CLEANING PAGE appears.
   
3. Press [SELECT] to create the cleaning page.
   
4. Follow the instructions on the cleaning page to complete the cleaning process.
   

Print the event log:
The printer’s internal Event Log stores the last 30 errors and can be
printed at any time. To print the Event Log:

1. Press [Menu] until INFORMATION MENU appears.
   
2. Press [Menu] until INFORMATION MENU appears.
   
3. Press [Select] to print the Event Log.
   

Reset maintenance count:
After the printer maintenance kit has been installed, reset the maintenance count.:

1. Turn the printer off.
   
2. While pressing [Item-] and [Value-] turn the printer on.
   
3. RESET MAINT COUNT appears, followed by INITIALIZING. After
   a few seconds READY appears.