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How to Identify and Fix Common Problems ?

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(From: Tom Dunn ([email protected]).) Error code 51 indicates loss of laser beam for over 2 seconds. Check -5 V, also make sure there is no interlock mechanism damage, and +5 V at J451-1 on Laser Drive PCA. You may need new laser unit.
When 51.00. xx Error To continue turn off then on is displayed on the control panel, it indicates that there is a laser/scanner assembly issue. The XX is a two digit code that provides information on the specific issue causing the error. Turn the printer off, and then back on to clear the error.
The 51.01 and 51.1 errors are fairly common error codes on the HP LaserJet 4100, 4100N, 4100TN, and 4100DTN series printers. This error indicates a failure with the laser scanner assembly, which is a high-failure part on these models.
The 51.2 errors on the HP LaserJet 4250 4350 and 4240 series printers indicates a failure with the laser scanner assembly. You can try turning the printer on and off; sometimes that will temporarily reset the error code and allow you to print a few more pages.
Valorant Error Code 51: Disable Your Antivirus

If you are running an anti-virus program, temporarily disable it before launching Valorant and you should be able to login into the game without getting the error. After you finish your matches, you can re-enable your antivirus.

Error 51 is generated any time the app does not receive a response to a command or other request within 1 minute of sending it. Will also happen immediately when WiFi connection is active between handset & WiFi router or hub, but there is no internet connection behind it.
Err 51 – Inverter temperature too high

A high ambient temperature or enduring high load may result in shut down to over temperature.

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.
On the HP LaserJet P3015 P3015n and P3015dn series printers, this 51.00. 10 error code may be temporary. Try turning the printer off and back on to see if the error clears. If the error comes back repeatedly, you have a failing laser scanner assembly which requires replacement.
Any of these error codes (51.20 51.21 51.22 51.23) points to a failure with one of the laser scanner assemblies on the HP Color LaserJet 4610 an 4650 series. To solve these error codes, replace the corresponding laser scanner.
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.
Starting off with error code 51, this code signals gas manifold issues or outright failure. This error code can also trigger if there`s water dripping onto the manifold. Error code 51 will likely result in gas pressure issues.
This error has the following cause and solution: An internal malfunction has occurred in Visual Basic. Unless this call was generated by the Error statement or Raise method, contact Microsoft Product Support Services to report the conditions under which the message appeared.
This 51.10 error code points to a failure with the laser scanner assembly, and to fix this error usually you end up replacing the laser scanner assembly. You can try turning the printer off and back on, which may temporarily reset the error and let you print a few more pages.
The laser/scanner assembly needs to be replaced as one of the motors has gone bad inside the assembly.
On the HP LaserJet P3015 P3015n and P3015dn series printers, this 51.00. 10 error code may be temporary. Try turning the printer off and back on to see if the error clears. If the error comes back repeatedly, you have a failing laser scanner assembly which requires replacement.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

49 error on LaserJet 1536dnf
ANSWER : How to rectify this problem

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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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Error Code 51.1 says Printer Error No Kidding.lol
ANSWER : Sometimes turning off and on will allow you to print a few pages. The error is a beam detect error. The only real fix is to replace the laser scanner unit. Could be a loose connector on the scanner or DC controller from the scanner. That’s unlikely. You could try the only other free fix which is to open the scanner assy. and clean all the mirrors inside. The dust could obstruct the laser beam enough to cause the detect error.

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HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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HP Laserjet M3035xs error 13.17.00
ANSWER : If the misstep thinks of no interface join connected with the unit, pay for my research paper then most times the issue is the hard circle and it ought to be supplanted.

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Error 51 Beam Detect Failure
ANSWER : I have never seen a scanner assy. go bad on one of those printers. I would suspect the DC controller board as that provides the voltage to the scanner assy. and displays the error codes as well. I’ve replaced quite a few of those.

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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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HP Laserjet 4100 Error (13.1)
ANSWER : I am pretty late to the party for this discussion but I am incredibly thankful to the person that posted this “fix” that I can barely imagine it. My 4100 had developed the dreaded paper jam described above and I had no idea what was causing it. I replaced a number of rollers only to have the same problem re-occur with no solution in sight.

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