65 HP LaserJet Pro M404dn

HP LaserJet Pro M404dn - 'Encryption Credentials Expired' error (macOS, iOS) When printing from macOS or iOS, an  Encryption Credentials Expired  error message displays and you are unable to print. The error displays when the Embedded Web Server (EWS) has an expired certificate, and hence the operating system rejects the certificate. This Certification is necessary to secure connections with AirPrint and Secure Internet Printing Protocol (IPPs). To resolve the error, generate a new self-signed certificate from the EWS. Generate a new self-signed certificate from EWS Open EWS from a Windows computer, and then generate a new self-signed certificate. Use the desktop view of the EWS to generate the certificate. The mobile view of the EWS does not have the  Certificates  menu option. On a Windows computer, open an internet browser, and then enter the printer’s IP address. NOTE: For more information on how to open the EWS, see Use the HP Printer Embe...

HP LaserJet Pro M404dn, HP LaserJet Enterprise, HP PageWide Enterprise - The printer does not print, or it prints slowly If the printer will not print, or if it prints slowly, use the following solutions. The printer does not print If the printer does not print at all, follow the steps below in the order presented. Check the printer control panel and connections. Make sure that the printer is turned on and that the control panel indicates it is ready. If the control panel does not indicate that the printer is ready, turn the printer off and then on again. If the control panel indicates that the printer is ready, try sending the job again. Make sure that the cables are all connected correctly. If the printer is connected to a network, check the following items: Check the light next to the network connection on the printer. If the network is active, the light is green. Make sure that you are using a network cable and not a phone cord to connect to the...

HP LaserJet Pro M404dn - A wired Ethernet-connected printer does not print and has no response when initiating a print job This document pertains to  HP LaserJet Pro printers connected to a network with an Ethernet cable , not for a USB or wireless connection. When printing to an HP LaserJet Pro printer using a wired network connection, one or more of the following symptoms are present: Print jobs do not print The printer does not respond when a print job is initiated A print job is stuck in the queue Follow the steps below (in the order presented) to resolve the issue. NOTE: The steps vary according to the type of control panel. TOUCHSCREEN WITH WHITE BACKGROUND TOUCHSCREEN WITH BLACK BACKGROUND 2-LINE LCD WITH KEYPAD Step one: Check connectivity at the printer Check the wired network connection at the printer and computer. Click the section below for your control-panel type and then follow the steps provided. Touchscreen control panel with whi...

HP LaserJet Pro M404dn, M404, M405, M428, M429, M454, M479 - Print quality not as expected and unable to view the dpi resolutions in the print settings Issue Print quality not as expected and unable to view the dots per inch (dpi) resolution when adjusting print quality settings in the HP PCL 6 printer driver on an  HP LaserJet Pro  or  HP Color LaserJet Pro  printer. Figure : HP PCL 6 printer driver, Paper/Quality tab, Print Quality options Solution Adjust the print quality settings in the printer driver. Open the document you want to print. Open the HP PCL 6 printer driver you use to print and select the Paper/Quality tab. Change the Print Quality setting to the desired print quality level using the following settings and the corresponding dots per inch (dpi) resolutions as a guide. For normal everyday print quality, select Normal (600 dpi). For line art, architectural drawings, finger prints, and higher p...

HP LaserJet Pro M404dn - Resolving mono print quality problems Use the information below to troubleshoot print-quality and image-quality problems on  mono  (black and white) HP LaserJet Pro printers. NOTE: For  color  HP LaserJet Pro printers, see HP Color LaserJet Pro - Resolving color print quality problems. The troubleshooting steps can help resolve the following defects: Blank pages Black pages Curled paper Dark or light bands Dark or light streaks Fuzzy print Gray background or dark print Light print Loose toner Missing toner Scattered dots of toner Skewed images Smears Streaks Troubleshoot print quality To resolve print-quality issues, try these steps in the order presented. To troubleshoot specific image defects, refer to the  Troubleshoot Image Defects  section further down in this document. Update the printer firmware Try upgrading the printer firmware. For instructions, go to...