HP LaserJet 9050DN User Manual

ENWWOverview89
5
Printer maintenance
Overview
This section explains basic printer maintenance.
●Cleaning the printer
●Printer maintenance kit
●Managing the print cartridge
●Print cartridge conditions
 

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Cleaning the printer
General cleaning
To maintain print quality, clean the printer thoroughly:
●every time you change the print cartridge.
●whenever print-quality problems occur.
Clean the outside of the printer with a lightly water-dampened cloth. Clean the inside with only a 
dry, lint-free cloth. Observe all warnings and  cautions that appear with the cleaning tasks on the 
following pages.
WA R N I N G ! Avoid touching the fusing area when cleaning the printer. It...

ENWWCleaning the printer91
3
With a dry, lint-free cloth, wipe any residue from the paper path area, the registration roller, 
and the print cartridge cavity.
4 Replace the print cartridge.
5 Turn the green lever back to the locked position.
6 Close the front cover, reconnect all cables, and turn the printer on.
 

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Printer maintenance kit
NoteThe printer maintenance kit is a consumable and is not covered under warranty.
To ensure optimum print quality, HP recommends that the printer maintenance kit be used 
approximately every 350,000 pages. You might need to replace the kit more often, depending on 
the type of printing you do. If you have questions about how frequently you should use a 
maintenance kit, contact the support center at  www.hp.com/support/lj9050_lj9040
.
When the...

ENWWManaging the print cartridge93
Managing the print cartridge
When you use a new, authentic HP print cartridge (C8543X), you can obtain the following types 
of supplies information:
●amount of cartridge life remaining
●estimated number of pages remaining
●number of pages printed
●other supplies information
Print cartridge authentication
The printer will let you know that a cartridge is no t a genuine HP print cartridge when you insert 
it in the printer. If you insert a used HP cartridge from another...

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Using printer software
The following conditions must be met in order to use this feature:
●The HP Toolbox software must be installed on your computer. (HP Toolbox is automatically 
installed as part of the typical printer software installation.)
●The printer must be connected to a network.
●You must have access to the World Wide Web to order supplies.
To use the printer software
1 On the  Start menu, select  Programs, and then click  HP toolbox.
The HP Toolbox opens...

ENWWPrint cartridge conditions95
Replace the print cartridge
When the print cartridge is empty, a  REPLACE CARTRIDGE message appears on the printer control 
panel. The printer continues printing (without customer interaction) until it reaches a drum-out 
condition, but HP does not guarantee print quality after this message appears. However, if the 
REPLACE CARTRIDGE  message results from the drum life being exceeded, the user has to replace 
the cartridge immediately, and no override is poss ible. This...

96Chapter 5 Printer maintenance ENWW
You can also receive alerts through the HP Tool
box software. These alerts display as either a 
pop-up window or an animated taskbar icon. The  HP Toolbox software does not send alerts in 
the form of an e-mail message. You can configure the HP Toolbox software to deliver only the 
alerts that you want to receive, and you can also specify how often the software checks the 
printer status. See  HP Toolbox for more infor mation.
Embedded Web server See  Using the...

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6
Problem solving
Overview
This section will help you to troubl eshoot and solve printer problems.
Clearing jams Occasionally, paper can jam during printing. This section will help you to locate 
paper jams, properly clear them from the printer, and solve repeated jams.
Understanding 
printer messages Many different messages can appear on 
the printer control-panel display. 
Some messages tell the current printer status, such as  INITIALIZING. Other 
messages require action, such as  CLOSE...

98Chapter 6 Problem solving ENWW
Clearing jams
If a paper-jam message appears on the printer control panel, look for paper in the locations that 
are indicated in the following graphic. You might need to look for paper in locations other than 
those that are indicated in the paper-jam message. If the location of the paper jam is not obvious, 
look first in the front-door area.
After looking at the graphic, you can go to the procedure for clearing the jam. When clearing 
jams, be very careful not to tear...