HP LaserJet IIIP+

How to Identify and Fix Common Problems ?

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

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.
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.
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.
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.
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.
On most hp color printers this error tells you the yellow laser/scanner has an issue. Most times you will need to take it in for service.
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.
You should be able to just go through your anti-virus settings and whitelist both “recroom.exe” and “recroom_release.exe”. You can find these in the Rec Room installation folder. This way it won`t interfere with Rec Room and still be active in the background.
The laser/scanner assembly needs to be replaced as one of the motors has gone bad inside the assembly.
The laser/scanner assembly needs to be replaced as one of the motors has gone bad inside the assembly.
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.
If the error is a 51.23 and your printer is an hp color laser printer, then you have an issue with the yellow laser/scanner not working. It could be the dc controller or the laser/scanner, however due to the cost of repair it will probably be best to replace the printer.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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.

Read Full Q/A … :

HP LaserJet IIIP+

Error Code 52.1M
ANSWER : Magenta laser error. The spinning motor bearings cause the squeal and that slows it down causing the error. You could try opening it and lubricating the motor shift with a drop of synthetic lubricant. Do not use more than a drop.

Read Full Q/A … :

HP LaserJet IIIP+

Scanner error keeps coming up
ANSWER : I am having the same problem with my Epson Workforce 645

Read Full Q/A … :

HP LaserJet IIIP+

HP CLJ CP 5225 ERROR 55.0601
ANSWER : my printer cp5225 is giving me error code 55.0601 message which i can’t fix please help

Read Full Q/A … :

HP LaserJet IIIP+

Error Message 4F on MFC 210C
ANSWER : Basically this kind of error caused by loss of voltage on print head. If this is the case then I suggest to buy a new printer rather than replace print head. Print head might be too costly.

Read Full Q/A … :

HP LaserJet IIIP+

HP 9040 MFP Error code
ANSWER : bonsoir

Read Full Q/A … :

HP LaserJet IIIP+

Density Shutter Error
ANSWER : I’ve never worked on one of those printers, but I have never, ever seen 1 valid solution for printer repair on fixya.com I read the replies there when I need a good laugh. Makes me wonder what the “techs” on that forum actually do for a living. It certainly couldn’t be printer repair.

Read Full Q/A … :

HP LaserJet IIIP+

52.0 SCANNER ERROR
ANSWER : Laser scanner assembly.

Read Full Q/A … :

HP LaserJet IIIP+