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123 HP Officejet Pro 8720 printers can be set up to print over a wireless network on a Mac Operating system. The first measure is reset the printer to its default factory settings followed by installing the Printer Driver/Software(123.hp.com/ojp8720 or 123.hp.com/ojpro8720).

HP ePrint E mail job fails to Print

This instruction manual is solely for HP ePrint supporting HP web enabled Printers.

Your HP Printer ceases to print, posts an error message or simply fails to respond when it receives a command from HP ePrint e mail address in certain scenarios.

Step 1 : Examine the HP Officejet Pro 8720 Printer status and other necessary requirements

The Printer should be turned ON and setup first. You also need to confirm if it is connected to a network and updated as well. See to it that the Printer is not using USB cable as a connection method which HP ePrint will not support.

  • Ensure the Printer is ON
  • Ensure that the Printer has an active Internet Connection.
      • Wired(Ethernet Connection) : Examine the Ethernet cable connection on their respective Ethernet port connection. The Connection or link light should glow steady green and the activity light should be flickering orange indicating healthy communication and data transfer.
      • Wireless Connection : If the Printer plans to use a wireless connection , you should ensure that the Wireless Feature should be ON and the Printer and the computer must be connected to the very same network.

    Certain printers feature a Wireless icon with a blue light on front panel which should be ON.

  • The Web Services should be turned ON and kept ON during the time when the HP ePrint is being used.
  • The Printer Firmware should be kept updated failing which the HP ePrint might not work. If the printer firmware is not updated, browse and head to HP Customer Support where you could download the updated firmware by making an exclusive search for your Printer model.

Be Cautious about error messages or random blinking lights noticeable on the Printer Control Panel.

Step 2  : Examine the E mail address and Print Job specifications 

Verify a set of requirements mentioned below for error free printing of HP ePrint print job.

Verify if the correct Printer E mail address is mentioned in the TO: field . The HP ePrint will not accept additional e mail addresses in the same field (TO: field) and will abort the print job. You may add additional recipients in the CC: field however.

  • The Subject line should not be kept blank and must contain text otherwise which HP ePrint might cancel the print job.
  • Double check the e mail account you are sending to for a likely ePrint error e mail.

Other HP ePrint requirements are listed below.

  • HP ePrint will not entertain more than 10 attachments for every e mail print job.
  • The maximum allowed size per e mail must be 10MB inclusive of the attachments.
  • The Supported file types of documents are as follows “ text (.txt), PDF, HTML, Microsoft Word (.doc and .docx), Microsoft PowerPoint (.ppt and .pptx), and Microsoft Excel (.xls and .xlsx)
  • The Supported file types of photos are as follows ‘.bmp, .gif, .jpg, .png, and .tiff.”
  • The photos should possess 100 pixels or higher (Both Horizontal and Vertical)
  • HP ePrint does not have the ability to recognize or print digitally signed, encrypted and password protected documents.

Step 3 : Inspect  the Print History 

If the Print job gets delayed, it is a good idea to check the Print History queue on HP Connected to figure if your print job is in the queue or not. If your print job is trailing other print jobs in the queue, then it may cause a slight delay for the printer to start dishing out prints.

  • Visit HP Connected and remember to sign into your account. An array of connected printers shows up on My Printers tab.
  • Find and click on your printer’s ePrintHistory button on My Printers window. The Print History queue shows items in the printing queue for the last 30 days.
  • If the Print job is found on the Print queue , wait until your print job takes its turn because the printer will print based on the priority set for the queue. If the printer does not print at all even after few minutes, delete the print job by clicking on Delete icon and click OK to confirm it. Send the Print job once again.
  • If the Print job has an Error icon next to it, pursue the given on-screen instructions to rectify the issue. Send the Print job once again if necessary.
  • If the Print job is not found at all, skip over to the next step.

Step 4 : Verify the Allowed Senders list in HP ePrint. 

The HP Connected has a list of pooled in printers and others can send print jobs to your web enabled printers as long as they are aware of your printer’s e mail address. If you happen to use HP Connected and added your printer, ensure that the e mail address you are trying to send the print command from is included in the Allowed Senders only list in HP Connected. This helps your web enabled printer recognize and authorize the source of Print command.

  • Open the My Printers tab and click on Settings.
  • Find and click on Allowed Senders only under the ePrint Access. After that, click Manage Allowed Senders to display a list of Allowed Sender E mails.
  • If you find your e mail address listed, move to the next step.
  • If you cannot find your Printer listed, please enter your email address which needs to be typed in the text box and proceed to click on Add. Now your e mails address gets listed in the Allowed Senders list.
  • Now send the Print job. If it fails to print again, move over to the next step.

 Step 5 : 123 HP Officejet Pro 8720 – Diagnose and Troubleshoot Network Connection errors.

HP ePrint will not work if the Printer does not have an active internet connection be it wired or wireless. So the first step is diagnose , troubleshoot and fix common connection problems to make it work.

Following are a series of troubleshooting steps to resolve connection issues for wired and wireless connections respectively.

You can seek support from HP Customer Support Page for knowing how to connect a printer especially when you have connection issues. You can type in the model number/name of your printer and the find the instructions document for setting up or installing or specific troubleshooting steps to overcome certain connection errors.

123 HP Officejet Pro 8720 Wireless Network Connection

The below procedures and instructions aid in troubleshooting and resolving Wireless network connection issues.

  • Reboot Computer and the Printer : Do a power cycle by rebooting the computer and the printer to settle a range of functional and connection issues.
  • Validate the Printer Connection and Network Name :If the Printer plans to use a wireless connection , you should ensure that the Wireless Feature should be ON and the Printer and the computer must be connected to the very same network. Certain printers feature a Wireless icon with a blue light on front panel which should be ON.
  • Check the connection using your mobile Device : You may check the availability and fidelity of the internet connection by using your mobile device’s internet connection to help connect the Printer. If you can make a successful connection, then your home internet connection is at fault. You have to contact your ISP for further assistance.
  • Setting up a Manual connection to the Network : Instead of taking an automatic route, you can resort to setting up a manual connection of the printer to the internet using the HP Officejet Pro 8720 Wireless Setup Wizard tool or Wireless Settings menu present on the Control Panel of your Printer. The Setup Wizard accompanies you through a series of screens and receives the login information including the Username and Password to help connect the printer to a wireless network. 
  • Reduce the Distance between Printer and Router : Position the Printer and Router closer to each other yet not lesser than 6 ft. This is done to ensure the wireless signals are strong enough to facilitate communication and exchange between Printer and Router.
  • Change Router Band Settings : The Routers are designed to operate in 2.5 GHz and 5 GHz frequency bands whereas the majority of printers do not operate in 5 GHz bands. Please set and enable the 2.5 Ghz router band and ensure it is broadcasting. The Router may broadcast different SSID’s (Network Names) exclusive to each band. If so , the printer should only be connected to 2.4 GHz band SSID.
  • Permission for Firewall Software : The Firewall may forbid the communication between the Printer and Router due to its settings. Configure the Firewall Settings and provide permission to allow for HP Downloads and Installations.
  • Check for Physical Blockages: Clear any and all physical blockages made of metal or wooden materials between the Router, Printer and Computer which might cause potential signal blockage.
  • Check for EMI Interference: Get rid of devices that potentially emit radio signals which can cause potential interference to the wireless signals. Watch out for Microwave ovens and cordless telephones.
  • Manual IP Address on the Printer : You can set Manual IP Address over a Local Area Network as against an automatic IP Address assigned by DHCP which can be set from the front Control Panel menu.

123 HP Officejet Pro 8720 Wired Network Connection (Ethernet) : 

You may try the below fixes to troubleshoot and resolve wired network connection issues.

  • Reboot Computer and the Printer : Do a power cycle by rebooting the computer and the printer to settle a range of functional and connection issues.
  • Check the Ethernet Connection : Examine the Ethernet cable connection on their respective Ethernet port connection on the computer and the printer. The Connection or link light should glow steady green and the activity light should be flickering orange indicating healthy communication and data transfer.
  • Inspect the Cable : Inspect the Ethernet Cable closely to see if a phone cable is mistook for Ethernet cable due to the design similarity though the sizes are different.
  • Change and Reconnect: Try using another Ethernet Cable and also make sure the Ethernet cable is plugged into a working port on the Router.