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Hp Laserjet 4 Error Code 51

Bad fan, PS4 or PS5. If not, check the photodiode and the transistors Q202, Q204, Q208. Check the cabling connections to the laser/scanner.4. If the printer is already plugged into a wall outlet, try another power source in the building that is independent of the one currently being used. 4. Source

Replace the upper cable guide ass'y 3. Oh well . . . Reseat cables to the laser/ scanner and engine controller. 4. If the error continues, reseat or replace cables from the DC Controller to the Laser/Scanner Assembly. http://www.repairfaq.org/samnew/printfaq/pcfljec51.htm

But as long as it's working... Put your IR sensor on the end of that and test again. Check the cabling connections to the laser scanner assembly.3. A temporary printing error has occurred. 2.

The user is thinking of multifunction printers which also have a scanner which is used to duplicate a sheet for faxing, copying or sending to a computer folder. Defective DC controller. 3. Defective laser scanner assembly. 4. This is the output of the photodiode amplifier.

Reseat cables to the laser/ scanner and engine controller. 4. Check the cabling connections to the laser/scanner assembly. 5. Replace fuser. Paper tray empty or not seated correctly. 2.

This page is presented as a public service. Replace the scanner ass'y4. The Organ Forum on your Mobile Device Enjoy the Organ Forum on your phone or tablet using the mobile style. An error code 51 is loss of beam detect.

I think what you found was the inspector's quality control sticker that was on top of the black box. If you have an IR detector (as used for testing remote controls) then undo the screw on the scanner - not the fixing screws that hold the scanner in place - The page containing the error will automatically be reprinted. 2. If the message persists after exiting help, turn the device off and then on.4.

New service manuals Samsung ProXpress M4020NX, (sm, pc), Eng, 26.8Mb OKI ES9542, (sm, pc), Eng, 43.9Mb Canon MF8550Cdn, (sm, pc), Eng, 45.0Mb Samsung SLM4020NX, (sm, pc), Eng, 26.8Mb Epson Expression Photo this contact form Our customers include printer repair shops, large and small businesses, government, schools, military, churches, non-profits, and individuals. Defective laser scanner assembly. 2. Check paper path especially operation of PS1 5P Temporary errors occur if 2 pieces of paper were picked.

I may be contacted via the Sci.Electronics.Repair FAQ (www.repairfaq.org) Email Links Page. <> HP LaserJet error code 51 "On Replace same 55 Error (Internal communication problem) All printers Replace DC controller PCB Replace formatter PCB Replace both PCB's at the same time (NOTE!! Check and reseat the fuser and toner cartridge to make sure they are not hindering gear movement in the drive train. 3. have a peek here IID, IIID Check duplex paper path for blockages.

Forum FAQ Calendar Forum Actions Mark Forums Read Quick Links Most Helpful Posts View Site Leaders Gallery FAQ Store Classifieds Advanced Search Forum Blower Room General Chat HP LaserJet 5 - I am only a channeler of information and DO NOT service laser printers. Good luck! “There's nothing remarkable about it.

The electronics on that board detects the pulse from that photodiode and provides a sync signal for the data sent to the laser So the fault can be the laser, the

Error code K - No Black Color.2. Press the SELECT button to continue or press ? Laser scanner assembly not seated. 3. Defective laser scanner assembly.

What's New? Replace same Replace laser PCB II, IID, III, IIID Replace toner cartridge if defective Inspect fiber optic cable for bare spots, cuts or kinks Replace cable from scanner to DC controller Remove same 72 Service All printers FONT cartridge removed during formatter access. http://domcached.com/hp-laserjet/hp-laserjet-1000-error-code.html We help people fix printers.

Replace the ECU. Change the contents of the old list and save it as new. x = 1: Beam detect malfunction x = 2: Laser malfunction Required Action Press SELECT to resume operation. You can even send us your printer for repair.

and that is where they get you. Try connecting the product to a different power source or surge protector.4. IIISi, 4Si, LJ4, 4+, 4P Install toner cartridge Check tabs on right side of cartridge. (Need at lest one tab) Switch actuator bent, support tab in upper right corner of DC LOL!

Incorrect cable hookup or bad I/O port in computer. You can print your Parts List or export to Excel to further work with him. All laser printers have laser/scanner assemblies. Here's how The Electrical Safety Wiki article has been moved to the FAQ.

Replace laser scanner assy Replace DC controller PCB LJ4, 4+ Check and reseat laser/scanner cable connections Replace laser scanner connections 4L, 4P, 5P Reseat scanner assembly Replace laser/scanner assembly 53 Error Replace same Display is all block characters All printers Display cable is bad or disconnected or not connected properly Bad control panel Bad formatter PCB FS Disk Failure 4V Printer detected Reseat the connectors between the laser/scanner and the DC controller PCA (J83 and J84) 4. Temporary error. 2.

Remove all the cables from the scanner retaining clips. We don't sell hard drives, monitors, software, mp3 players, or the zillions of other computer products sold by every other cookie-cutter website. Replace Scanner Assembly. II, III Only: Replace Cable, Laser/Scanner to DC Controller cable (P/N RG1-0908-000). Replace the laser/scanner. 5.

Check the printer’s configuration. 3. Sometimes just reseating the cable will make this error go away but it will come back eventually. (From: Eric Liber ([email protected]).) Here is the description of the possible 51 errors: 51