HP LASERJET 4050T TONER CARTRIDGE

The HP LaserJet 4050t Laser Printer monitors the condition of the installed toner cartridge. You can check the data collected by the machine by using the HP software. One of the listed indications will appear if the installed toner cartridge needs replacing.

 

·       The message [INSTALL TONER CARTRIDGE] is displayed – The HP LaserJet 4050t Laser Printer does not detect an installed toner cartridge. Please install a new toner cartridge if you are getting this error while the toner cartridge is installed.

 

·       The message [Toner Low] is displayed – The installed toner cartridge is nearing end of life. You should install a new toner cartridge soon.

 

·       Faded printouts

 

·       White spots

 

·       White lines

 

·       Background fogging

 

·       Toner smear

 

·       Other print quality problems

You must start the replacement procedure by opening the top cover of your HP LaserJet 4050t Laser Printer. Then, you must slide the used toner cartridge along the guides of the slot in direction towards you to remove it from the laser printer. After that, you must take the new toner cartridge out of the protective bag, and then shake it at least ten times from side to side. Now, you must use the tab to pull the sealing tape out of the new toner cartridge, and then align the tabs of the new component with the guides of the slot. In the next step of the replacement procedure, you must slide the new toner cartridge along the guides of the slot as far as it will go, and then close the top cover of your HP LaserJet 4050t Laser Printer. Finally, you must reset the toner counter by selecting [CONFIGUARATION] – [NEW TONER CARTRIDGE] – [YES].

The approximate lifespan of the transfer roller is 200,000 printouts. You should replace the installed transfer roller if any of the listed print quality problems persists.

 

·       Blank printouts

 

·       Voids

 

·       Variations in toner density/darkness

Initially, you must switch the HP LaserJet 4050t Laser Printer off, and then open the top cover. After that, you must remove the toner cartridge, and then detach the right end of the exhausted transfer roller. Now, you must remove the exhausted transfer belt by pulling it to the right, and then unpack the replacement component. Finally, you must install the new transfer roller by executing the current procedure in reverse order.

The most common indications for a defective/exhausted laser scanner assembly are listed below.

 

·       [41.X PRINTER ERROR] – You must make sure that the laser scanner assembly is correctly connected, and then try to reprint the current job. Please replace the laser scanner assembly if the error persists.

 

·       [51.X PRINTER ERROR] – The HP LaserJet 4050t Laser Printer has detected a problem with the laser beam. You must make sure that the laser scanner unit is properly connected, and then try to reprint the current job. Please replace the laser scanner unit if the error persists.

 

·       [52.X PRINTER ERROR] – The speed of the laser scanner assembly does not correspond to the required operational speed. You should reinstall the laser scanner assembly, and then restart the HP LaserJet 4050t Laser Printer. Please install a new laser scanner assembly if the problem persists.

 

·       Distorted image; Horizontal black lines; Horizontal white lines; Vertical white lines;

Initially, you must switch your HP LaserJet 4050t Laser Printer off, and then slide the rear right side cover to the right as far as it will go. After that, you must detach the rear right side cover from the main unit, and then use needle-nose pliers to pinch the pin of the hinge of the toner cartridge drive-arm. Now, you must remove the toner cartridge drive-arm, and then open the top cover. In the next step of the replacement procedure, you must remove the toner cartridge from the HP LaserJet 4050t Laser Printer, and then remove the top cover. Once the top cover is removed, you must unplug the three connectors of the laser scanner assembly, and then remove the four mounting screws of the exhausted assembly. Finally, you must pull the exhausted/defective laser scanner assembly out of the HP LaserJet 4050t Laser Printer, and then install the replacement component by executing the current procedure in reverse order.

You must start the replacement procedure by opening the top cover of your HP LaserJet 4050t Laser Printer. Then, you must remove the toner cartridge and the rear right side cover from the machine. Once the rear right side cover is removed, you must remove the toner cartridge drive arm, the control panel overlay, and the control panel. After that, you must remove the top cover, and then release the latches and the catches of the left side cover to remove it. Now, you must release the top center latch of the front right side cover, and then remove the cover by releasing its tabs. In the next step of the replacement procedure, you must open tray 1, and then release the hinges of the front cover by sliding them outward. After that, you must remove tray 1, and then remove the envelope feeder connector cover, the envelope entrance cover, and the envelope feeder gear cover. Next, you must remove the tray 1 pickup assembly, and then remove the three black screws from the front side of the exhausted registration assembly. Now, you must raise the green handle, remove the two black screws, and then the rear silver screw. Finally, you must take the exhausted registration assembly out of the HP LaserJet 4050t Laser Printer, and then install the replacement component by executing the current procedure in reverse order.