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HP Laserjet Pro m402dn Troubleshooting

HP Laserjet Pro m402dn Troubleshooting has become a common practice with all the careless with which people are handling their printers. Due to lethargy, there are countless issues that arise from little mistakes. These are common fixes that can be performed by the following instruction from the website.

HP Laserjet Pro m402dn Printer Extra tray

  • Let us go through the process of adding an extra tray to the Laserjet Pro M402dn. Purchase of a compatible tray is mandatory. HP LaserJet Pro 550-sheet Feeder Tray is the ideal tray for this printer.
  • This tray offers additional 500-page capacity. With this, there can be uninterrupted printing of up to 900-pages. Saves the time of having to reload the pages ever so often.
  • Saving time is the primary cause of adding another paper tray. This setup comes with an attachment that can be fixed to the bottom of the printer and configured to work with the existing tray.
  • Box package comes with the paper tray cum feeder, and instruction manual. With a dimension that matched the printer, this tray finds no fault at attaching itself to the bottom of the printer.
  • With a total weight of 3.7kilograms, this paper tray can contain papers of all sizes ranging from A4 sheets, envelopes, legal, letter, Executive, oficio of various sizes, A5-R, and statement papers.

Load paper error

  • This issue is caused by various reasons. Check if there is an error code getting displayed when the printer displays Load paper error. Nevertheless, follow the below-provided instructions.
  • Turn on the printer and reset it by forcefully disconnecting the power cord. This is done on the wall socket and at the rear of the printer. Wait for a duration of at least 30 seconds before reconnecting and turning on the printer.
  • Turn on the printer and check if the error message is gone. If this doesn’t work, open the paper tray and check the condition of the paper, reload it and try printing again.
  • Replace any crumpled, rusted, dirty and curled papers if any. Remove all the papers and replace them with clean white sheets. Make sure that the papers present in the tray are all neat and clean.
  • Ensure that all the papers present in the tray are all of the same size. Using different sizes will confuse the printer and will prompt it to display an error. The printer can only process one paper at a time.
Not printing
  • Your 123.hp.com/ljprom402dn printer should be turned on and the on the control panel the printer should show the ready status. If this message is not displayed, try switching the printer off and then on again.
  • When you find the ready message, send print jobs to the printer and check if it is printing. If not, clear the print queue and resolve if any HP Laserjet Pro m402dn Troubleshooting issues pointed out on the control panel and try printing again.
  • Make sure all the power cords and other cables are connected properly. The lights next to these cords should be glowing when done correctly. Use appropriate cables whilst connecting.
  • Network connection should be perfect. Make sure it is working and properly connected to the printer. If the issue is not hardware based, try uninstalling and then re-installing the driver software. Update the same.
  • Disable any firewalls or anti-virus that might interfere with the printer connecting with your router or computer. Restart the printer by pulling the power cord and try printing.
Paper Tray
  • HP Laserjet Pro m402dn Troubleshooting Issues in the paper tray are most frequently caused by paper jams. Paper jams are relatively easy to clear and require manual intervention of trying to remove the paper by force.
  • Remove all the papers that are present in the paper tray and realign all of them. Make sure the papers are not stuck to each other. Reintroduce the papers into the tray and try printing.
  • All the papers present in the paper tray should be of the same size. Using different size will cause paper no loading issues as the printer will display error code asking you to insert suitable papers.
  • Takeout all the papers, extend the paper width and paper length guide, extend the length aligner and push the paper in firmly. Try changing paper tray as a worse case scenario.
Paper Jam
  • Follow the below-mentioned steps to rectify your paper jamming issues. Start with checking if your input tray is full if it stops providing papers. Clear your tray and try printing again.
  • Strictly use only papers that meet HP paper specification. Using other papers might cause the paper to get lodged between rollers and paper trays. Remove dust and dirt accumulation on the printer thoroughly.
  • Never insert papers of varying sizes. This will confuse the printer as the device can only recognize one paper size at any given point of time. Changing paper size would require you to re-calibrate the settings.
  • Locate jammed paper in the printer and try removing it. Jam might occur anywhere from the paper tray to toner cartridge area. Carefully remove the damaged and lodged paper.
  • Open the toner cartridge door and check for paper or any foreign object present inside. Use a flashlight and thoroughly check and remove if any. Firmly close the door, align the paper and try printing again.
Black ink not printing
  • Black ink, not printing is a quality based HP Laserjet Pro m402dn Troubleshooting issues that can be rectified by addressing the toner issues. Understand that HP can only guarantee quality outputs from authentic products. Always opt for authentic accessories.
  • The paper that is approved by HP should be utilized. This is mandatory for quality purposes. With the right kinda paper, the output will be with enhanced ink depth and perception.
  • Go to the control panel on your computer and modify your print settings. Set your print preferences to its highest settings. Print quality to Best and Select Grayscale option for black prints.
  • Ink levels can be verified at the home screen of the printer’s control panel. Control panel will display the ink levels as bucket icons. Empty cartridges will be marked with an exclamation mark meaning its time you change it.
  • Print a Diagnostic report on your HP Laserjet Pro m402dn printer to determine ink levels and quality of your ink. Before replacing any depleted cartridge, check if they are properly inserted in their respective slot.