HP LaserJet 9050 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 can be  hot.
CAUTION To avoid permanent damage to the print cartridge, do not use ammonia-based cleaners on or 
around your printer.
To clean the printer
1Before you begin these steps, turn the printer off and disconnect all cables, including the 
power cable.
2 Open the front cover of the printer and remove the print cartridge.
CAUTION To prevent damage to the print cartridge, use two hands when removing it from the printer.
Do not expose the print cartridge to light for more than a few minutes. Cover the print cartridge 
when it is outside of the printer.
NoteIf toner gets on your clothes, wipe it off with a dry cloth, and wash your clothes in cold water.  Hot 
water sets toner into fabric.
 
						

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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  PERFORM PRINTER MAINTENANCE  message appears on the control panel, you need to 
purchase a printer maintenance kit and install the new parts. The part number for the 110-V kit is 
C9152A. The part number for the 220-V kit is C9153A. The printer maintenance kit contains two 
Type 1 rollers, seven Type 2 rollers, one transfer roller assembly, and one fuser assembly. 
Complete instructions for installing the kit components are included in the printer maintenance kit 
box.
After a new maintenance kit is installed, reset the printer maintenance count.
To reset the printer maintenance count
1 Turn the printer off.
2 Turn the printer on.
3 When the memory count starts, press and hold  .
4 When the three LEDs are on, press   until  NEW MAINTENANCE KIT appears on the screen.
5 Press .
If the message persists, 
1 Use   or   to scroll to  CONFIGURE DEVICE.
2 Use   or   to scroll to  RESETS.
3 Press .
4 Use   or   to scroll to  CLEAR MAINTENANCE MESSAGE .
5 Press .
To verify that the maintenance kit is reset to zero, print a configuration page by using the 
following procedure.
To print a configuration page
1 Press .
2 Use   or   to scroll to  INFORMATION. and press 
3 Use   or   to scroll to  PRINT CONFIGURATION. and press  . 
For more information about inst alling the printer maintenance ki t, see the instructions that 
accompany it.
 
						

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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 HP printer, the printer can take as 
many as 20 printed pages to receive the message authenticating that the cartridge is a genuine 
HP part.
If the printer control-panel message states that this is not a genuine HP print cartridge and you 
believe you purchased an HP cartridge, go to  www.hp.com/go/anticounterfeit
.
Non-HP print cartridges
Hewlett-Packard Company cannot recommend use of non-HP print cartridges, either new or 
remanufactured. Because they are not HP products, HP cannot influence their design or control 
their quality. Service or repairs required as a result of using a non-HP print cartridge will  not be 
covered under the printer warranty.
Print cartridge storage
Do not remove the print cartridge from its package until you are ready to use it.
CAUTION To prevent damage to the print cartridge, do not expose it to light for more than a few minutes.
Checking the toner level
You can check the toner level by using the printer control panel, the embedded Web server, the 
printer software, or HP Web Jetadmin.
Using the printer control panel
1Press   to open  Menu.
2 Use   or   to select  INFORMATION and then press  .
3 Use   or   to select  PRINT SUPPLIES STATUS PAGE  and then press  .
4 Press   to print the supplies status page. See  Supplies status page for information about 
the supplies status page.
Using the embedded Web server
1 In your Web browser, type the IP address for the printer home page. This takes you to the 
printer status page.
2 On the left side of the screen, click  Supplies Status. This takes you to the supplies status 
page, which provides tone r level information. See Supplies status page for information about 
the supplies status page.
 
						

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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 in a Web browser.
2 On the left side of the window, click the  Status tab, and then click  Supplies Status.
Note If you want to order supplies, click  Order Supplies. This opens a browser that produces a URL 
where you can purchase supplies. Select the supplies that you want to order and then finish the 
ordering process.
Using HP Web Jetadmin
In HP Web Jetadmin, select the printer device. The device status page shows toner level 
information.
Print cartridge conditions
Use these procedures when you see a message that relates to the print cartridge, or when you 
want to change or replace a print cartridge.
Order the print cartridge
When the print cartridge is low, the message  ORDER CARTRIDGE appears on the printer control 
panel.
If the  ORDER CARTRIDGE  message appears but the printer continues printing, the  CARTRIDGE LOW 
setting is set to  CONTINUE (the default setting).
If the printer stops printing when low toner is detected,  CARTRIDGE LOW is set to STOP. To resume 
printing, press  .
The message  ORDER CARTRIDGE  will continue to appear until yo u replace the print cartridge.
Select  CARTRIDGE LOW=CONTINUE  or CARTRIDGE LOW=STOP  from the Configuration menu on the 
printer control panel (see  System setup submenu).
HP recommends that you place an order for a replacement print cartridge when you first receive 
an  ORDER CARTRIDGE  alert. You can order a cartridge by using the Internet Enabled Supplies 
Ordering feature. To do so, click the printer icon on the bottom right of your screen, click the icon 
for the printer that you use, and then click the Order Supplies link on the status page. In a 
network environment, use the embedded Web server to order supplies online.
 
						

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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 is done to protect the printer and the 
print cartridge.
Recycling
For information about recycling the print cartridge, see  Protecting the environment or go to 
www.hp.com/recycle
.
Using the printer cleaning page
Note To ensure good print quality with certain types of paper, use the cleaning page every time the 
print cartridge is replaced. If the cleaning page is frequently needed, try a different type of paper.
If toner specks appear on the front or back side of your print jobs, use the following procedure.
From the printer control panel:
1 Use   or   to select  Configure Device and then press  .
2 Use   or   to select  Print Quality and then press  .
3 Use   or   to select  Create Cleaning Page  and then press  .
4 Follow the instructions on the cleaning page.
5 When toner has been clea ned from inside the printer, sh iny black spots will appear on the 
page black strip. If white spots appear on the black strip, print another cleaning page.
Note In order for the cleaning page to work correctly, print the cleaning page on copier-grade paper 
(not bond or rough paper).
Rocking the print cartridge
When you install a print cartridge for the first time, gently rock the cartridge from front to back to 
distribute the toner evenly inside the cartridge. Because of the new cartridge design, this is the 
only time that you need to rock the cartridge.
Configuring alerts 
You can use HP Web Jetadmin or the embedded Web server in the printer to configure the 
system to alert you to problems with the printer. The alerts take the form of e-mail messages that 
are sent to the e-mail account or accounts that you specify.
You can configure the following items:
●the printer(s) that you want to monitor.
●which alerts are to be received (for example, alerts for paper jams, paper out, order 
cartridge, replace cartridge, and cover open)
●the e-mail account to which the alerts should be forwarded
Software Location for information
HP Web Jetadmin See the HP Web Jeta dmin Help system for details on 
alerts and how to set them up.
 
						

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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 embedded Web server for general 
information about the embedded Web server.
See the embedded Web server Help system for 
details on alerts and how to set them up.
Software Location for information
 
						

							ENWWOverview97
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 RIGHT DOOR. Most of these messages 
are self-explanatory. However, some messages indicate a problem with the 
printer, or require further action or descr iption. This section lists these types of 
messages and tells you what  to do if a message persists.
Resolving control-
panel messages This section lists messages that might appear on the control panel and 
explains what causes the message and what action can be taken to resolve 
the message
Correcting output 
quality problems The printer should produce print jobs of 
the highest quality. If print jobs do not 
appear sharp and clear, if defects such as lines, specks, or smears appear on 
the page, or if paper is wrinkled or cu rled, use this section to troubleshoot and 
solve the print quality problem.
Solving common 
printer issues Before you can eliminate a printer problem, you must understand the location 
of the problem. Use the tables in this 
section to determine the printer problem, 
and then follow the corresponding troubleshooting suggestions.
Using the 
embedded Web 
server The pages that give information about the printer are on the embedded Web 
server.
Printing information 
pages These pages can be printed fr
om the printer control panel.
Checking the 
printer configuration From the printer, you can print informat
ion pages, which give details about the 
printer and its configuration.
Printing a paper 
path test The paper path test can be used to veri
fy that various paper paths are working 
properly.
 
						

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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 the paper. If a small piece of paper is left in the printer, it could 
cause additional jams. If jams are a recurring problem, see Solving repeated paper jams.
NoteLoose toner might remain in the printer after a paper jam and cause output quality problems. 
These should clear up within a few pages.
Jam locations     
1. Standard top bin (face-down output bin)
2. Optional Tray 1
3. Right door
4. Vertical transfer door
5. Optional Tray 4
6. Tray 3
7. Tray 2
8. Left door (behind output accessory
9. Duplexer (inside the printer)
10. Optional output device
11. Front door and print cartridge area
12. Upper bin (face-up output bin)
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