50.9 Fuser  Error Related to High Temperature Issues
Hopefully you never have to run into the 50.9 fuser error in the HP laserjet  P3015  printer. However it’s impossible to believe that it will never happen. So in this article I’d like to talk about the 50.9 fuser error in these machines and give you a few pointers on things to try before replacing the fusing unit,  RM1-6274-000CN.
Troubleshooting tips for the 50.9 Fuser  Error
First off, the 50.9 fuser  error is a high temperature error in the fusing assembly. The first step to take is to turn the machine off and let it sit 10 to 20 minutes to let it cool down. If the error continues check your fuser settings and make sure they are set to normal and the paper type is set to plain letter. Other things that can cause this error are poor ventilation and extremely hot enviroments. The machine should have a few inch clearance on all sides especially on the side with the main cooling fan. Also because the fuser  heats up to around 350 decrees it should not be in temperatures over 85 to 90 decrees. Next thing to check would be if your running heavy paper through the machine the fuser  heats up more to properly bon the toner to the paper. Over long runs in this high temperature state the fuser  can overheat. So if you find that when you use heavy card stock the fuser  over heats break up the job into several small ones allowing breaks to cool the machine down. Finally, if all else fails turn the machine off, unplug it and let it sit for 30 minutes, then try again. Below is what the service manual has to say and following that is replacement instructions and a link to purchase a new fuser, RM1-6274-000CN, if needed.
HP P3015 Fusing Assembly NEW OEM RM1-6274
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What the Service Manual has to say about the 50.9 Fuser Error
1. Power cycle the product to determine if the error is persistent.
2. Verify that the correct fuser model is installed in the product.
3. Verify that the correct voltage fuser is installed in the product.
4. 50.2 errors: Make sure that the connectors J8002 Â and J1505 Â are fully seated on the ECU, and connector J18
is fully seated on the fuser.
5. 50.1, 50.3, 50.8, and 50.9 errors: Make sure that the connectors J18 Â and J1608 are fully seated on the ECU.
6. 50.8 errors: Remove the fuser  and make sure that there is no residual media or toner has built up on the fuser.
7. 50.4 errors: Make sure that the power to the product meets the specifications for the product.
NOTE: If the power supplied to the product is outside the specifications, the fuser  temperature control circuit will not properly work, causing a fuser  malfunction. Make sure that the connector J1002  and J1505 are fully seated on the ECU. If the error persists, replace the ECU.
8. If the error persists, replace the fuser.
Fuser Replacement in the HP Laserjet P3015 Printer
Rear-door assembly
Unplug Machine and let sit for 10 minutes to cool.
1. Open the rear door.
2. Gently pull down on the door and lower the door until it is fully open.
3. Push up on the link arm to release it.
CAUTION: The link arm is under spring tension. Do not let the link arm snap back toward the
product when you release it.
4. Remove two screws.
5. Open the lower-rear door, and then release one tab.
6. Release one tab.
7. Rotate the bottom of the rear-door assembly away from the product.
8. Pull down on the rear-door assembly to remove it.
Right-rear cover
1. Slide the right-rear cover toward the inside of the product to release it.
2. Rotate the bottom of the cover away from the product, and then pull down on the cover to remove it.
Fuser ( RM1-6274-000CN )
1. Duplex models only: Release two tabs on the duplex media-feed guide, and then slide the guide toward the back of the product to remove it.
Reinstallation tip Make sure that both tabs snap back into place when reinstalling the duplex media-feed guide.
2. Disconnect three connectors, and release one wire harness from the retainer.
3. Remove four screws.
4. Pull the fuser out of the back of the product.
CAUTION: To avoid damaging the fuser, the cartridge-door assembly must be closed before you remove the fuser.
Conclusion about the 50.9 fuser error
Like all other fuser  errors the 50.9 fuser  error usually means you’ll be replacing the fusing assembly unless. So if all the steps above have failed or pointed you in the direction of a new fuser  then click on the link below to get pricing on a new fuser, RM1-6274-000CN. Hopefully, this article has helped you troubleshoot and resolve your 50.9 fuser error on your HP laserjet  P3015 printer.
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Additional Printer Repair Articles can be found at : http://www.metrofuser.com/
