HP LaserJet 4

How to Identify and Fix Common Problems ?

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

This error refers to the Laser unit, which is responsible for all printing procedures. It does not have to do with the scanner or ADF. So, yes, you will have to replace the Laser unit to fix it. If you found this post helpful, you can let others know by clicking the “Accept as Solution” button.
Replace the dc controller. In most Laserjets, a 52 error means the scanner motor is rotating at the wrong speed or not at all. In the case of the 5000 and 5100, it can also mean the scanner shutter failed to open because a lever in the printer was not actuated due to a missing toner cartridge fin.
52 Scanner Error

The product has experienced an internal hardware error. Turn off the power by using the power switch, wait at least 30 seconds, and then turn on the power and wait for the product to initialize. If a surge protector is being used, remove it. Plug the product directly into the wall socket.

The printer stops feeding pages, the control panel displays an alternating E and 4, and the Error icon , Paper Error icon , and Resume light blink. This indicates that paper might be jammed inside the printer. Paper jams can be real or false. The printer might report a paper jam even when there is no jammed paper.
An invalid path in the System. CFG file causes this error.
52.00 ERROR

Verify that the scanner motor connector and the ribbon cable from the ECU are firmly seated on the laser/scanner assembly. 2. Verify that the scanner motor connector is firmly seated in connector J402 on the ECU. You might have to remove the main cooling fan to see this connection.

This is usually caused by a misplaced pick-roller cover located in the right door. If the pick-roller cover gets dislodged, it will obstruct the movement of one of the sensors causing the “13.20. 00” error. Check if the pick roller cover is open.
The printer experienced a black drum motor M3 error. 59.05. 50 Black drum motor startup abnormality.
(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.
I found the following: Error 50 means that the heating of the fuser unit is no longer working. This is usually a burnt-out heating lamp,or a defective thermal fuse.
HP Printer Error E4 means that the FINE cartridge in your printer device is not installed appropriately. To move out the cartridges, you will require to push the output tray back in before opening the cover.
A 49 error typically occurs when the printer attempts to perform an action that the firmware is not capable of performing or might not be designed to handle, for example: Printing files that include unsupported printer commands. Interfacing with a third-party solution that was not designed to work with the printer.
Err 50, Err 52 – Inverter overload, Inverter peak current

If the over current trip level is continuously exceeded, the inverter will shut down: wait 30 seconds and then restart. The Inverter can supply more power than the nominal power level for a short time.

Error 52 in this case directly maps to AIX/Linux errno 52 STALE FILESYSTEM. This condition can result when a SAN or iSCSI attached block device that serves as the backend storage for the failing directory/filesystem disconnects from the host briefly.
(Provider: SQL Network Interfaces, Error:52 – Unable to locate a Local Database Runtime installation. Verify that SQL Server Express is properly installed and that the Local Database Runtime feature is enabled.)
Error message “0x0000052e” indicates the following error: “Logon failure: unknown user name or bad password.”
The laser/scanner assembly needs to be replaced as one of the motors has gone bad inside the assembly.
When a 50.22. 00 or a 50.22. 11 error displays on the control panel, it indicates an issue with the fuser warming up.
Laser printer fusers adhere toner powder to a page using a combination of heat and pressure. Error 50.5 occurs when the fuser fitted physically but the printer has specifically identified it as wrong.
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.
According to documentation 59.09. 00 is a main motor error and needs replacement.
57.1 , 57.3 , 57.4 , 57.5 , 57.6 , 57.7 , 57.8 Error HP LaserJet 9000 9040 9050. 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.
F0 Error and is unable to print. This behavior may be caused by one of the following conditions: • Transfer belt is broken and cannot properly engage the internal transfer rollers. Sensor SR17 (primary transfer roller disengagement) is dirty or bad.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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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HP LaserJet 4

HP LaserJet 49 Error Troubleshooting
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HP LaserJet 4

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

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HP LaserJet 4

LaserJet 4 won't Power Up
ANSWER : I haven’t seen that particular behavior on that model. It either works or it doesn’t. My first choice would be the power supply.

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HP LaserJet 4

Paper Mismatch Error on HP C6150, C6180 or C7280
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HP LaserJet 4

HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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HP LaserJet 4

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 4

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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HP LaserJet 4