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How to Identify and Fix Common Problems ?

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50.2 error indicates that the printer is not heating up fast enough. This can be caused by a bad heating element in the fuser but can also be caused when the printer does not have adequate power due to overloaded circuits or being plugged into a power strip or surge bar that limits current flow.
Fuser Units

The coating wears off and causes the toner to not fuse properly. There are replacement rollers and sleeves on the market that you can replace and turn a non-functional fuser into a good working one. Rebuilding fuser assemblies is not a new thing.

If you see this error code 50.5 on an HP LaserJet 4200, 4240, 4250, 4300, or 4350 series printer, the fuser installed in the printer is registering as an incorrect fuser for that model printer.
41.02 error on this printer is a laser/scanner error. If the message does not clear, then you need to replace the laser/scanner. If you are not getting a 41.02 error, then report back with the correct number. The 05 does not mean anything.
41.2 Error Code on HP Laser Printers

The arcing occurs in the toner/transfer area, and can be caused by a defective toner cartridge, bad high voltage or ground connections to the toner cartridge or transfer roller, or a defective high voltage power supply.

The message `Fuser Error` or `Self-Diagnostic` means either the fuser has reached the maximum temperature allowed or there has been an error in detection of the correct temperature during specific times of the printing process.
The Fuser is the piece that fixes the toner on the paper. This, like any other consumable part, wears out with the regular use of prints, since it is one of the components that suffers the most due to its mechanical wear and overheating of its components, due to the high temperatures it must withstand.
Streaking, smudging, black lines, and double images are all symptoms of a bad fuser. When you notice these printing defects and experience problems, such as paper jams or wrinkles, this is a good sign to replace the fuser kit.
Printing made easy with an HP Fuser Kit

It lets you print up to 150,000 pages of dynamic quality before you need to replace it.

A component found in electrostatic printers, laser printers, and xerographic printers and photocopiers. The fuser unit is used to permanently bond toner to a substrate by applying heat and pressure. A fuser unit is made up of two rollers; one to apply heat and one to apply pressure.
Streaking, smudging, black lines, and double images are all symptoms of a bad fuser. When you notice these printing defects and experience problems, such as paper jams or wrinkles, this is a good sign to replace the fuser kit.
This error is primarily caused by a transfer alienation failure in which the ITB is stuck and unable to rotate, the SR9 sensor (the primary transfer roller disengagement sensor) has gone bad or the fuser drive assembly has failed.
Streaking, smudging, black lines, and double images are all symptoms of a bad fuser. When you notice these printing defects and experience problems, such as paper jams or wrinkles, this is a good sign to replace the fuser kit.
The message “Fuser Kit Low” or “Fuser Kit Very Low” on your HP Color LaserJet M553 series printer is a warning that you have reached the recommended number of prints for your fuser assembly. (The fuser assembly is the consumable part in your printer which heats up and bonds toner to the paper.
Printing made easy with an HP Fuser Kit

It lets you print up to 150,000 pages of dynamic quality before you need to replace it.

Printing made easy with an HP Fuser Kit

It lets you print up to 150,000 pages of dynamic quality before you need to replace it.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP 4250 13.06.00 Fuser output paper stop !
ANSWER : pick up solenoid

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HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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Laserjet 4250 print quality issue (see image)
ANSWER : It looks like a fuser problem. One way to prove it is with the half-stop test. Put a sheet in the drop down manual feed tray. Send a print job and watch the paper. When the end of it is about to enter the printer, open the lid and take out the toner cartridge. Look at the printed image. If it looks OK, then it is a fuser problem. If not, then it is a toner cartridge issue since it hasn’t gone through the fuser.

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Service manual for an HP Laserjet 4250 (or 4250n)
ANSWER : Hello all,Can someone please tell me where to find service manual for a 4250 or 4250n printer?I used Google, Fileshare.eshop.bg, peer-to-peer, but with no avail …Thanks alot for your answers!

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laserjet 4200 4250 4300 4350
ANSWER : I just (by mistake) bought the tone 381 for 4200 by mistake on eBay. I just cut off the extra plastic noses and it does work now with my 4250! I’m really glad about that ;D

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HP LaserJet 49 Error Troubleshooting
ANSWER : One must give a chance to 25dollarsupport its a Fix $ price Computer Tech support company, which is the best option in present crowded market. Quite dependable and cost effective..

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HP 4250, error 54.1 Remove sealing tape from toner
ANSWER : I am having the same problem as everyone else can someone send me a new link or the pdf

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HP Laserjet 4200 50.2 Fuser error
ANSWER : if you are using a good fuser the next part to try would be low voltage power supply

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