HP Color LaserJet 2840 User Manual

HP policy on non-HP supplies
Hewlett-Packard Company cannot recommend the use of non-HP supplies, 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 supply will not
be covered under the printer warranty.
When you insert a supply into the device, the device will inform you if the supply is not a
genuine HP supply. If you insert a genuine HP supply that has reached the low state...

HP fraud hotline
Call the HP fraud hotline if the device or HP Toolbox indicates that the print cartridge or
imaging drum is not an HP print cartridge and you think that it is genuine. HP will help
determine if the product is genuine and take steps to resolve the problem.
Your print cartridge or imaging drum might not be a genuine HP one if you notice the
following issues:
●You are experiencing a large number of problems with the print cartridge or imaging
drum.
●The print cartridge or imaging drum does...

Changing a print cartridge
To replace a print cartridge
1. Push the scanner-release button to open the scanner assembly.
2. Open the top cover.
3. Make sure that the correct print-cartridge slot is in the access position.
●If the correct print-cartridge slot is not in the access position, close the top cover and
the scanner assembly, and then press R
OTATE CAROUSEL until the correct print-
cartridge slot is in the correct position.
4. Pinch together the two large blue tabs on the first cartridge, and...

5. Remove the new print cartridge from its packaging, remove the orange cover from the
print cartridge, and then pull the orange tab straight out to remove the sealing tape.
6. Squeeze the blue release levers on the print cartridge, holding it with the roller facing
you. Lower the cartridge straight down into the carousel until it is firmly in place.
●If you need to replace another cartridge, close the top cover and the scanner
assembly, press R
OTATE CAROUSEL, and then repeat steps 4 through 6.
7. Close...

Changing the imaging drum
To change the imaging drum
1. Push the scanner-release button to open the scanner assembly.
2. Open the top cover.
3. Grasp the imaging drum handle, and then rotate the drum until the handle is at the top.
4. Lift the imaging drum straight up to remove it from the device.
5. Remove the new imaging drum from its packaging.
ENWW Changing the imaging drum209
 

6. Place the imaging drum on a firm surface, and then pull the orange rings to remove the
shipping pins.
7. Remove the orange shipping lock on each end of the imaging drum, and remove the two
orange shipping spacers.
8. Remove the orange cover from the imaging drum.
CAUTIONDo not touch the surface of the roller or expose the roller to light for an extended period of
time. Doing so could cause print-quality issues.
9. Align the arrows on the side of the imaging drum with the arrows inside the printer.
10....

14
Troubleshooting
This troubleshooting information is organized to help you resolve printing problems. Choose
the general topic or type of problem from the following list.
●
Support strategy
●
Troubleshooting process
●
Control panel messages
●
Clearing jams
●
Print problems
●
Scan problems
●
Copy problems
●
Fax problems
●
Memory card problems
●
Troubleshooting tools
ENWW211
 

Support strategy
This device has a one-year limited warranty. Warranty service and support options might
vary depending on your country/region. Please refer to the support flyer that came in your
box for contact information, or visit http://www.hp.com.
You can find additional support information in 
Service and support.
212Chapter 14 Troubleshooting ENWW
 

Troubleshooting process
Use the troubleshooting checklist to solve issues with the device.
Troubleshooting checklist
Follow the steps below when trying to solve a problem with the device.
Step
numberVerification stepPossible problemsSolutions
1Is the power on?
When the device is
connected to a grounded
power source, the control
panel shows Hewlett
Packard with moving
cursors indicating that the
firmware code is loading,
and the print engine motor
rotates for approximately
45 to 60 seconds. When
the...

Step
numberVerification stepPossible problemsSolutions
2Does Ready appear in
the device control panel?
The control panel should
function without error
messages.Control panel shows an error.See Control panel messages for a list
of common messages that will help
you correct the error.
If the error persists, contact
HP Customer Care. See 
Service and
support or the support flyer that came
in the device box.
3Do information pages
print?
Print a Configuration page.
See 
Configuration page.
Control panel...