HP Color LaserJet 4550N
Okay guys, I’ve opened the diagnostic mode on my 4550N, ran all of the motor, developer and sensor test, then I ran the formatter Diagnostic test, all completed w/out any indication of fault from the, “Attention” indicator.

Experienced technical support provide their insights in answering this question :
With power off, pull out the network card. Power on and try again. Also, if any memory is installed on the formatter, pull that off and try that.

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

If one or more toner cartridges are installed incorrectly, this may result in a 54.2 carousel rotation error. This error is typically accompanied by a loud grinding noise. NOTE: The carousel is the rotating part under the top cover to which all four print cartridges attach.
If one or more toner cartridges are installed incorrectly, this may result in a 54.2 carousel rotation error. This error is typically accompanied by a loud grinding noise. NOTE: The carousel is the rotating part under the top cover to which all four print cartridges attach.
This error is primarily caused by one of the following conditions: A transfer alienation failure in which the ITB is stuck and unable to properly engage the internal transfer rollers. The SR9 sensor (the primary transfer roller disengagement sensor) has gone bad. The fuser drive assembly has failed.
Try pressing the Fn and Print Screen keys at the same time to see if a screenshot is successfully taken with this shortcut. You may also try the Fn + Windows key + Print Screen combination. Check if your Print Screen key is working when you use this key combination.
Scroll to and touch the Administration button, and then touch the General Settings button. 2. Touch the Restore Factory Settings button, and then touch an option. Touch the Select All button to reset factory settings for all options.
This code indicates the disconnected status of your HP printer.
A calibration test page is a document that helps you adjust the alignment, color, and quality of your printer output. In this article, you will learn how often you should print a calibration test page, how to print one, and how to use it to optimize your printer performance.
Error 0x0000011b (Windows cannot connect to the printer) is a common issue in Windows that can cause system problems. The error 0x0000011b is usually seen in networks running at homes or small offices.
That error code indicates a failure of the yellow laser scanner. Unplug and leave for a few minutes, also make sure you are plugged directly into the wall and not into a surge protector.
The four standard cartridges would be present attached to a rotating device called Carousel under the printer cover. The issues with the carousel rotation and the misplacement of the cartridges upon the printer devices would result in issues with the printer device called as printer error 54.2.
The 59. F0 has been a common error code on the HP CLJ M452 and M377 / M477 MFP models. The printers service manual references this error to a “drum motor assembly” but in most cases has been resolved by replacing the Transfer Belt assembly (RM2-6454).
90 or 59.00. A0 Error resulting from a registration assembly and/or paper feed assembly that is jammed/stuck.
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.
Turn off the HP printer and unplug it from the power source. Also, shut down your computer and unplug any external devices. Wait for a few minutes and then plug in the printer and turn it back on. Finally, turn on your computer and check if the error state has been resolved.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP 4550N formatter diagnostics
ANSWER : With power off, pull out the network card. Power on and try again. Also, if any memory is installed on the formatter, pull that off and try that.

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HP Color LaserJet 4550N

HP 4550N formatter board
ANSWER : You can replace it by finding the slot of DIMM, where the existing HP4550N formatter board is installed. More info is available here

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Hp 4550n error 57.3
ANSWER : Any of the 57 errors on the HP LaserJet 9000 , 9040, and 9050 series printers are fan errors. There are 7 fans in the machine. Replacing the corresponding fan usually cures these errors; fans are a common failure part on this model. Potentially a failing DC controller could also cause a fake fan error, but that is not common. Below is a description of each fan error, and the corresponding part# for that fan.

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HP 26 vs HP 29 cartridge compatibility
ANSWER : Eu decidi fazer um binário opções, o primeiro passo neste trabalho yavlyaetsya formação inicial e os fundamentos .. Put Options and Call Options Trading É por isso que eu escolhi um par de artigos de alguns sites na Internet, se você pode se perguntar vospolzovatsya put-call-options.com/br/what-are-options/binary-options-and-strategies

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Formatter board repair (HP 2200, 4100, 4600 etc.)
ANSWER : Yes i have two printers one is hp laser jet p2055dn when i print test page,it print blank page and create jam inn cartridge area and another one is hp laserjet enterperise M606,When i try to print tests page,it does not print but give me error code 50:00:00 on the contral panel,who can help me with these printers problem Thanks

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HELP! HP Color Laserjet 5500dn (formatter prob??)
ANSWER : Italiano:

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HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

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ANSWER : bonsoir

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HP Color LaserJet 4550N