or Scan function intermittently not working & printer also delays (seconds or minutes)

[MAMBO_MAN]

Hi:

Have an HP OfficeJet Pro 8740 on an I-Mac (2013) with OS X El Capitan:

Using eitiher the Scan Option In the  “PRINTERS & SCANNERS Preferences,

as well as the Scanner App. itself (Applications folder) I frequently receive

following error messges:

 1) "The  Scanner reported an error.

HP OfficeJet Pro 8740 is currently unavailable. 

Please check if it is turned on and connected, 

or try again later."

(Using the Scanner App.)

Note: My printer is always turned on & connected correctly.

2) "An error occurred while communicating with the scanner

(-9923)

(Using the Scan option in the Printers & Scanners preferences

section in the OS X )

I have re-started the OfficeJet Pro alone multiple times and,

if no response, re-started both the OS x  (I-Mac) and then the

printer and still no resonse. 

I then turn off everything & return a few hours later turn things

on & now the scanner works.

Should I uninstall the software & re-install it?

(if so, what's the directions for doing this?)

Or, should I remove the power plug & USB wire and then re-

connect those 2 before I try the uninstall & re-install methods?

Any correct help appreciated.

[Rainbow23]

@MAMBO_MAN, welcome to the HP forums! It is a great way to post questions and find resolutions by working with specialists in the HP community.

I greatly value your relationship with HP. You are a valued HP customer and we appreciate you for doing business with HP.

I understand that you keep getting error messages while scanning from your HP OfficeJet Pro 8740 All-in-One Printer.

It’ll be a great pleasure to assist you with this.

This issue could occur if the latest version of the software is not installed.

Hence, I request you to uninstall the current software and then reinstall the full feature software from the link Full Feature software 

Hope this helps. Let me know how this goes.

Take care now and have a nice day ahead.

[MAMBO_MAN]

Thanks for the reply.

I did not see any uninstaller app. in the software I have 

on my I-Mac. Download or Application folders.

Would it be on the HP disc accompanying the new 

HP 8740?

Or is there another method used to uninstall this

software?

[MAMBO_MAN]

Addendum:

I originally used the online HP site to dowload the

"full featured software" (listed as "HP Easy Start.app").

I did not use the accompanying installation disc.

Interestingly, today when I inserted this disc (first time

used), I got a message stating that it would not work in my 

computer, in spite of the disc stating that it was compatible

witn OS X El Capitan, which is what I have.

[MAMBO_MAN]

Addendum 2:

Are these the correct instructions for uninstalling the HP

software when no uninstaller app. is present on one's

Mac computer (like me)?

HP Printers - (From the HP Site):

Uninstalling HP Printer Software (Mac):

This document is for Mac computers with OS X v10.6 and later.

Uninstall and delete the HP print driver and software from a Mac computer:

Click Finder in the Dock.

1. In the menu bar, click Go, 
2. Click Applications, 
3. Then open the HP or Hewlett Packard folder:
• If HP Uninstaller is in the folder:
• Double click it, then follow the on-screen instructions to uninstall the software
• If HP Uninstaller is not in the folder , continue to the next step
• Click and drag the HP or Hewlett Packard folder to the Trash icon in the Dock. 
4. In the menu bar, click Go, 
5. click Go to Folder, 
6. type /Library/Printers, 
7. then click Go.
8. The Printers folder opens.
9. Click & drag the HP or Hewlett Packard folder to the Trash icon in the Dock. 
10. Restart the Mac.
11. Right-click or Ctrl + click the Trash icon, then select Empty Trash.

[Rainbow23 · Accepted solution]

@MAMBO_MAN, thank you for your reply, I'll be more than glad to help you.

Yes, the steps are correct to uninstall the HP printer software in Mac OS.

I hope you have a good day ahead.

Regards,

[MAMBO_MAN]

Hi again:

Two thoughts:

1) In the Mac, the HP Uninstaller.app path is:

Download folder> HP Easy Start.app>Contents>Applications>HP Uninstaller.app

2) I also have Windows 10 installed on the same computer (I-Mac) and the CD

HP software installed on it. I cannot find the path to the HP Uninstall app in Win 10.

Any help, please.

[Rainbow23]

@MAMBO_MAN, thank you for your reply, I'll be more than glad to help you.

I understand that you wanted to know how to uninstall the HP printer software in windows 10.

Please follow the steps mentioned in the link: Uninstalling the Printer Software (Windows)

Let me know if this works.

I hope you have a good day ahead.

Regards,

[MAMBO_MAN]

Just to let you know:

I uninstalled the "older"  software & reinstalled the full feature software from the link Full Feature software .

Since then (about 2 weeks ago) everything works perefectly - both the printer & scanner.

Thanx for your help.

[Rainbow23]

@MAMBO_MAN, you are welcome.

I am happy to know that the issue has resolved and the printer is working fine.

I also appreciate your time and patience in following the steps which resolved the issue with the printer.

Feel free to ask your queries as this forum has some of the best people in the world available and ready to help.

You have a good day ahead.