Question about HP Officejet Pro L7780 All-In-One InkJet Printer

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How do I Try restarting your OS and power cycling your scanner th

My scanner isn't working on the HP 7780. This is a replacement of the exact same one. It worked with the other one.

Says the scanner is being used by another software - nothing else on.

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Try This :
Unplug the USB cable;
Then put the CD in the computer ;
Goto My computer- Right click on Black HP logo - Click on Explore - Open UTIL (Folder)- Open CCC (Folder)- Double Click on UNINSTALLATION L3 file;
If you don't have the Cd Uninstall the software from Add and remove programs
Restart the computer ;
Click on the below given link it will help you download the software :

http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?product=2512010&lc=en&cc=us&dlc=en&lang=en&cc=us

Select your OS;
Select the Full feature Driver;
Click on Download ;
Save to your desktop;
and then run the software;
Then while installation select the "Recommended" option and install it;
Try to scan from "HP Solution Center".. "home"
This should resolve your Issue
Regards Soumajit

Posted on Oct 01, 2009

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Posted on Jan 02, 2017

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I have installed HP PHoto and Imaging Softward for ScanJet 3570c 48 bit. Everytime I try to click on icons on the scanner, my computer shows an error message that there is a problem with connecting to the...


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Hello.

Give this a try (from HP Support):

The Scanner System Failure error occurs if the scanner bulb is not being heated up to the correct temperature or there is some other issue with the scanner hardware. Verify that the scanner bulb is lit.
Power cycle the all-in-one product and see if the error comes back. Perform the steps given below to power cycle your all-in-one product.

1. Shut the computer system off, then disconnect the all-in-one product from the power source. Leave the all-in-one product disconnected from the power source for at least one full minute.
2. Reconnect the power, then restart the computer system.

If it does, take it off of any power strip and plug it directly into a wall power outlet. The power strip may not be supplying enough power to the product. Cold ambient room temperatures may also cause this
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Your scanner assembly is defective, it will cost more to have it replaced than a new printer would cost.

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YOU WILL NEED DRIVERS FOR THAT DEVICE.

WWW.HP.COM/MAC
HP OFFICEJET PRO DRIVERS MAC 7780
OR
HP OFFICEJET PRO 7780 MAC DRIVERS
OR
HP OFFICEJET PRO 7780 DRIVERS

AND

CONTROL PANAL GO INTO NETWORKING AND SHARING FOLDER

PRINTING SHARING, OR PROPERTIES SETTING NEED TO BE CHANGED

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ROD

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1 Answer

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I set up my printer through my Airport Extreme network.  That solution worked sporadically.  I would get error messages that the computer could not open the printer.  I found clicking the "pause" print button and then clicking "resume" would often work but needless to say that became a pain.
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