HP LaserJet 3050 User Manual

Cleaning the paper path
During the printing process, paper, toner and dust particles can accumulate inside the all-in-one.
Over time, this buildup can cause print-quality problems such as toner specks or smearing. This all-
in-one has a cleaning mode that can correct and prevent these types of problems.
To clean the paper path from HP ToolboxFX
Use HP ToolboxFX to clean the paper path. This is the recommended cleaning method. If you do not
have access to HP ToolboxFX, use the method in 
To clean the...

To clean the paper path from the all-in-one control panel
If you do not have access to HP ToolboxFX, you can print and use a cleaning page from the all-in-
one control panel.
1.Press  Menu.
2. Use the  < or the  > button to find the  Service menu.
3. Press 
.
4. Use the  < or the  > button to find  Cleaning Mode .
5. Press 
.
6. Load plain letter or A4 paper when you are prompted.
7. Press 
 again to confirm and begin the cleaning process.
A page feeds through the all-in-one slowly. Discard the page when...

Changing the print cartridge
To change the print cartridge
1.Open the print-cartridge door.
HP LaserJet 3390/3392
HP LaserJet 3050 HP LaserJet 3052/3055
2.Grasp the handle on the print  cartridge and then pull the cartridge straight out to remove it. See
the recycling information inside the print cartridge box.
HP LaserJet 3390/3392
HP LaserJet 3050 HP LaserJet 3052/3055
3.Remove the new print cartridge from its packaging,  remove the orange cover from the print
cartridge, and then pull the orange tab...

4.Insert the cartridge into the all-in-one until it is  firmly in place.
HP LaserJet 3390/3392
HP LaserJet 3050 HP LaserJet 3052/3055
5.Close the print-cartridge door.
HP LaserJet 3390/3392
HP LaserJet 3050 HP LaserJet 3052/3055
CAUTIONIf toner gets on your clothing, wipe it off with a dry cloth and wash the clothing in
cold water.  Hot water sets toner into the fabric .
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Changing the automatic document feeder (ADF) on the
HP LaserJet 3390/3392 all-in-one
If the ADF on the HP LaserJet 3390/3392 all-in-one is damaged or not working, you can replace it.
For information about ordering supplies, see 
Accessories and ordering information .
CAUTION Do not attempt to change the ADF unless you are directed to do so by Customer
Care.
NOTE The ADF on an HP LaserJet 3050/3052/3055 all-in-one is not replaceable.
To change the ADF
1.At the all-in-one, raise the lid.
2.Disconnect the...

4.On the new ADF, unfold the hinges.
5.Insert the hinges on the new ADF so that they are slightly tilted forward, and then push straight
down into the all-in-one.
6.Insert the connector by pushing down on it until it clicks into place.
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Changing the automatic document feeder (ADF) pickup
roller and load arm assembly (HP LaserJet
3052/3055/3390/3392 all-in-one)
To change the ADF pickup roller and load arm assembly
If the ADF has trouble feeding documents, you can replace the ADF pickup roller and load arm
assembly. See 
Accessories and ordering information  to order the assembly.
1. Turn off the all-in-one and unplug the power cord.
HP LaserJet 3052/3055
HP LaserJet 3390/3392
2.Open the ADF cover.
ENWW Changing the automatic document...

3.Lift the load spring off of  the post on the load arm.
CAUTIONTo make sure that you do not lose the  load spring, hold on to the load spring
throughout this procedure.
4. Rotate the load arm assembly.
5.Lift the load arm assembly, slide the assembly toward the front of the all-in-one to disengage
the gear-end of the assembly, and then  lift the assembly off of the all-in-one.
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6.Insert the gear-end of the new load arm assembly into the all-in-one and then lower the
assembly into place.
7.Reattach the load spring.
8.Close the ADF cover.
ENWW Changing the automatic document feeder (ADF) pickup roller and load arm assembly
(HP LaserJet 3052/3055/3390/3392 all-in-one) 301
 

9.Plug in the all-in-one, and  then turn on the all-in-one.
HP LaserJet 3052/3055
HP LaserJet 3390/3392
NOTEIf you continue to experience jams in the ADF, contact your local HP-authorized
service provider. See 
HP Customer Care .
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