Question about HP DeskJet 3940 InkJet Photo Printer

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Hi there. Can you tell me if HP 3940 printer can be connected via a serial cable? Our system will not work with a USB connected printer. Thanks

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Hi hoshos6666
According to the manual , this unit runs only with a USB connection :
http://h10032.www1.hp.com/ctg/Manual/c00392271.pdf
Best regards ,
fanaudi

Posted on May 19, 2011

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  • Master
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I checked the specs on your printer and it has only one type of connection which is USB. You can get a gender changer and convert from USB to serial but it may not be optimal.

If you have a router and/or modem that has both USB and ethernet connections, you might try putting it on a home network and access it that way?

You can also get an external hub with 2.0 USB ports that has a serial cable choice of connection.

Posted on May 19, 2011

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1 Answer

I want to install HP deskjet 3940 in my computer


Hi,
Do the below steps.
1.Connect Printer cable(usb cable)to Computer&Swicth ON the printer.Printer driver cd also put in your cd/vd drive.
2.Start-device&Printers-Add Printer-Add a Local Printer-Select Port as USB001-Next-Have disk-Select yor Cd/dvd drive(Put Printer driver cd in your Cd/dvd drive)-next-next-Finish.

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Hi, Please try downloading a new driver for your hp deskjet 3940http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?lc=en&dlc=en&cc=in&lang=en&product=445449&
go to the above link and download the driver relevent to your operating system.and then try to install it.
remember not to connect the usb cable before installing the driver.
Good Luck.

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1 Answer

How to download the installer for hp deskjet 3940


Hi,

You have not mentioned the PC make and Operating system
First step is to find out the system type of your PC.

Click on START button
Right click on Computer and left Click on Properties
From the New Window Check for System Type : It will be mentioned as 32 bit operating system or 64 bit operating system. ( Remember this )

Click on the link below to download the drivers.
When the page open's - Choose the Operating system and click on Next Button.

Click on Drivers and Product installation option and click on HP Full Feature Software and Drivers
Click on Download button on top and click SAVE ( Remember the location you save the file )

You need to run the downloaded software.

Disconnect the USB Cable from printer before you start the installation as the screen will prompt you when you connect it.

Download Drivers

Hope this is helpful and will help you in installing the printer software.


Thank you for contacting FixYa


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Nov 19, 2010 | HP DeskJet 3940 InkJet Photo Printer

1 Answer

My printer is offline and I can't get it back to online


Hi,

If the printer is connected via USB cable, try the below steps.

1. Click start ->Run.
2. In the Run window, type "devmgmt.msc" (without quotes), click OK.
3. Device Manager Window will pop out, in this screen at the bottom you will see "Universal Serial Bus Controllers"
4. Click on the(+) sign next to "Universal Serial Bus Controllers" and look for "USB Composite Device".
5. Right click on "USB Composite Device" and select Uninstall.(Read Note)
6. After the the device is uninstalled, disconnect the USB cable from the back of the computer.
7. Restart the computer, after the system is booted plugin the USB cable.
8. You may need to wait for sometime for the device installation to get complete.
9 . Then try to print a word document.

Note: Before uninstalling the "USB Composite Device" right click on it and select properties to confirm whether that driver is for the printer.


Thanks & Regards,
Rizwan

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hi!good pm...hope this will help...

try to check the USB cable connected to your cpu & printer,see if its inserted properly...or try to plug the USB cable to other USB socket...if this does solve your problem,get another USB cable & try it...

goodluck!

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2 Answers

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Try changing the USB cable then if doesn't work uninstall printer the unplug. Install drivers first then plug in the machine.

Try this hope it works for you
Thanks J

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switch of the printer first remove the usb cable from the printer and uninstall the printer driver nad remove printer from device manager also. to go to the device manager do these steps first right click on my computer and then go to properties and the click on hardware tab and then click on device manager and go to universal serial bus controllers just click on + tab it will expand and it will show the list of connected hardware select usb printing support and right click on and uninstall then restart you system. after coplete boot run the driver software and connect the usb cable when it will prompt you and switch on the printer. it will install your printer

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