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The scanner keeps saying that my USB is not plugged in and it is

I have restarted the computer and have unplugged and plugged it back in (USB) and I still get the message that it's not plugged in. I have a HP Photo smart C4280 All-in-one. It prints and copies perfectly but will not scan. Can you help me?

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Re: the scanner keeps saying that my USB is not plugged...

There is a workaround without messing with drivers. I have the same problem if I use the buttons on the v40 and try to scan. I get the V40 can not connect to the PC message.


Go to Control Panel-->Scanners and Cameras

In there you will find: Hewlett-Packard OfficeJet V40 Scanner

Right click and select Scan. It will then start the scan wizard which will scan your document.

Posted on Feb 08, 2008

Re: the scanner keeps saying that my USB is not plugged...

Try updating to the latest version of Java at and you may need a USB 2 cable.

Posted on Mar 26, 2008

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Re: the scanner keeps saying that my USB is not plugged...

Some times its USB cable length issue. What cable length you are using, try a cable with one meter maximum length.

Posted on Jan 28, 2008

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When I try to print documents from the computer it ups and says no ready

Unplug the USB restart the pc and plug in.

If needed reinstall driver from original cd provided by manufacturer.

This will reinstall the driver and should solve the problem

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I'm trying to scan a document into Word and keep getting a message on the scanner that says "Cannot connect to PC" -- I've unplugged and plugged back in the cord that connects the scanner to the...

Hey JD!
It probably means that the scanner isn't configured well in the computer. What you should do, while to printer is turned on and connected to the computer is to go to the device manger (right click on "my computer" or "computer", and then go to the tab named "device manager"). go to "universal series bus controllers" and press on the plus sign. you should then have a list, search for "USB composite device" in that list. when you find it, right click on it and then left click on "uninstall" or "remove", approve it (press yes or OK) and after it done, disconnect the usb cable that connects the computer to the printer and restart the computer. only after the computer is booted up completely, you should reconnect the cable. after you do that you should get a pop up that says that new hardware is being installed (or something like that). wait for it to finish and after it says "you new hardware is installed and ready" (should appear near you computer clock), try to scan, it should work fine now. Good luck!

Dec 19, 2010 | HP OfficeJet D135 All-In-One InkJet...

1 Answer

I have no idea what is wrong with my scanner. My computer won't even acknowledge it's existence anymore. But the printer function on my HP 2355 works fine.

1. Verify electricity
2. Verify connected to computer still. (USB assumed)
Unplug it and plug it back in at both ends of the wire. Make sure USB is not in a network port.
3. Pull electric from printer 3 min. Restart computer.
4. Test; if no joy reinstall printer, but do not plug in USB until asked for it.

Please vote if helpful!

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1 Answer

My scaner says to check connection, but I'm not sure which connection?

Most scanners connect to the computer using a USB cable. The computer must recognize the device on the other end. So too mus the scanner see the computer.

Unplug the USB cable from the computer and wait about 5 sec. Plug it back in and you should hear a connection sound, and the software will have a pop up that shows connected.

good luck and don't forget to vote!!!

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Hp PSC2355 scan function inop

HP Officejet 5610 All-In-One InkJet Printer has few common problems. Such as Driver CD lost, Scanner does not work, Connection problem etc. For find all these software solution just click here....


Aug 25, 2009 | HP Officejet 5610 All-In-One InkJet...

1 Answer

Scanner problems

Don't know if this helps but it's from the manual on lexmarks website.
Scanner Connection error 1 Disconnect the USB cable from the printer. 2 Reconnect the USB cable. 3 Turn the printer off. 4 Unplug the printer. 5 Plug the printer into an electrical outlet. 6 Turn the printer on. 7 Restart the computer.
Weird order of doing things but maybe that's what you have to do to get the scanner enabled again. Give it a try and see what happens.

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1 Answer

Scanner suddenly disappeared from the Applications folders.

First unplug scanner, turn off mac, remove mac battery and unplug adapter, plug everything back , restart and reconnect.

If that did not work, then do the following:

Unplug scanner usb and reinstall scanner/printer software again on your MAC.

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clean glass. switch off. clean the lightsource bulb. keep fingers off the glass when cleaning

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Scanning problem

Remove the software. Unplug the USB to printer Restart the Computer. Reinstall the software- do exactly as it says- it will ask you to disable A/V software- come off line and do that. It will say [maybe] do not plug device in until told- unplug and do that. Do it right.

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My lexmark all in one printer and scanner will not print!

Not sure but i went to a down load site and downloaded my drives again and mine started working go to google and type in lexmark 1180 printer drives

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