HP LaserJet 1200

How to Identify and Fix Common Problems ?

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The fuser unit is a vital component of laser printers. Most fusers last between 50,000 and 200,000 pages, depending on the design.
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.
A fuser unit is a pair of heated rollers within the printer that fuses the toner onto the paper being printed on. Toner particles are pulled to the paper to create the desired text and images as the paper passes the imaging drum.
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.
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.

The fuser unit must be replaced every 100,000 pages, usually along with the transfer belt and feed rollers as part of a maintenance kit. The error code 010-351 indicates that the fuser has reached 75,000 pages and as a result has 25% life or less remaining.
Fuser Unit – 120 Volt Compatible with HP LaserJet 5200dtn (A0182)
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.
Push up on the release buttons on both sides of the fuser to release the springs, and then pull the fuser out of the printer. Place the old fuser aside for recycling. Remove the new fuser from its box. Remove the protective packaging.
In this case, it is recommended that you replace the fuser unit with a new one. The life of the fuser unit when printing A4 size paper is approximately 50,000 pages.
Look inside the fuser opening to make sure there is no debris or jammed paper. Remove any debris or jammed paper, if found. Hold the handles on each side of the fuser and reinstall it in the printer.
If you have NOT recently replaced the fuser or heavily jostled the printer around, then the 50.7 Fuser error indicates you have an actual fuser failure (the gearing pressure is not releasing) and the fuser needs replacing.
The Fuser operates in the temperature range of 175 – 215o C (347-419o F).
The fuser melts the toner particles, binding them to the page. The speed at which the paper passes through the fuser is what keeps the paper itself from burning. If the speed were slower, the paper would combust and burn.
The following are the top reasons why paper jams occur:

unsupported paper/media is used. incorrect paper settings in the tray and/or the print driver. paper loaded incorrectly and/or paper edge guides not adjusted properly in the tray. humidity and/or paper condition and storage.

Fuser kits replace the heating element in Laser printers that fuses toner onto paper. These elements wear out from normal use, and many printers need a new fuser every 60,000 pages.
The biggest difference lies in the name, as they tend to include all of the same parts. A maintenance kit should include a new fuser assembly, and a fuser kit should include all the necessary maintenance parts.
Removing and re-installing or replacing the Fuser while the machine is powered on may cause damage to the machine and cause it to become inoperable. WARNING: The Fuser and surrounding area may become very hot during operation.
A fuser unit is made up of two rollers; one to apply heat and one to apply pressure. The heat roller is a hollow (usually metal) tube that is heated by a radiant heat lamp suspended in its centre (so the tube is heated uniformly), while the pressure roller is a backing roller made of rubber.
Increasing the temperature too much may distort the paper and cause glossy lines, paper jams, and insufficient toner fusing (hot offset). Depending on the type of paper, you can increase the toner gloss by increasing the temperature by 5 to 10°C over the initial factory setting.
This feature is accessed from Machine Status > Tools > Setup & Adjustment > Custom Paper Settings. Select the desired Custom Paper > Change Settings > Adjust Fuser Temperature > Change Settings.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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ANSWER : Seriously, dmzcompute, you are awesome! And this is just what the internet does so well: a specific fix for an esoteric problem, thus keeping a 15 year old machine alive another day. Thank you!

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ANSWER : Try directpreciseimaging.Com in Calif. Don’t worry about resistance unless there is none.

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ANSWER : Italiano:

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ANSWER : if you are using a good fuser the next part to try would be low voltage power supply

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ANSWER : I can’t believe, pieces of paper was under the registration flap, now my 4250N is working.

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