No power my scanner doesn't turn on , so i was wondering if i can plug it other ways in the back as a power source cuz i don't have another 4 pin power adapter to test if its that , that is gone bad

Its not drivers issue, hard ware issue.. Scanner assm faulty,replace it..For tech guys:Open flat bed glass, remove scanner assm clean inside reflector glass with ear buds & adf glass especially at home position.. lubricate on rail refix it back.. check it..

A quick fix for most communication errors can be achieved by resetting the printer and/or rebooting the PC. Simply disconnect the printer from your computer. Reboot your pc. Unplug and re-plug the printer into the power source to reset it. When the printer turns on, reconnect it to your computer. Then try to print again once the computer fully recognizes the USB connection.

If that doesn't help, try the steps below:

1. Disconnect the printer from your computer.

2. Rebrick (pull out power supply, black box where the power cord is plugged in at the back of the printer, and put it back after 30 seconds).

2. On your computer, go to Control Panel > Printers and Faxes.

3. Delete the Lexmark print object.

4. Reboot your pc.

5. When your pc turns on, reconnect the printer.

6. Wait until your pc fully recognizes the USB connection. To check, go to Control Panel > Printers and Faxes. If you see a new Lexmark print object in the list again, then try to print again.

A quick fix for most communication errors can be achieved by resetting the printer and/or rebooting the PC. Simply disconnect the printer from your computer. Reboot your pc. Unplug and re-plug the printer into the power source to reset it. When the printer turns on, reconnect it to your computer. Then try to print again once the computer fully recognizes the USB connection.

If that doesn't help, try the steps below:

1. Disconnect the printer from your computer.

2. Rebrick (pull out power supply, black box where the power cord is plugged in at the back of the printer, and put it back after 30 seconds).

2. On your computer, go to Control Panel > Printers and Faxes.

3. Delete the Lexmark print object.

4. Reboot your pc.

5. When your pc turns on, reconnect the printer.

6. Wait until your pc fully recognizes the USB connection. To check, go to Control Panel > Printers and Faxes. If you see a new Lexmark print object in the list, then try to print/scan again.

A quick fix for most communication errors can be achieved by resetting the printer and/or rebooting the PC. Simply disconnect the printer from your computer. Reboot your pc. Unplug and re-plug the printer into the power source to reset it. When the printer turns on, reconnect it to your computer. Then try to print again once the computer fully recognizes the USB connection.

If that doesn't help, try the steps below:

1. Disconnect the printer from your computer.

2. Rebrick (pull out power supply, black box where the power cord is plugged in at the back of the printer, and put it back after 30 seconds).

2. On your computer, go to Control Panel > Printers and Faxes.

3. Delete the Lexmark print object.

4. Reboot your pc.

5. When your pc turns on, reconnect the printer.

6. Wait until your pc fully recognizes the USB connection. To check, go to Control Panel > Printers and Faxes. If you see a new Lexmark print object in the list, then try to print again.

A quick fix for most communication errors can be achieved by resetting the printer and/or rebooting the PC. Simply disconnect the printer from your computer. Reboot your pc. Unplug and re-plug the printer into the power source to reset it. When the printer turns on, reconnect it to your computer. Then try to print again once the computer fully recognizes the USB connection.

If that doesn't help, try the steps below:

1. Disconnect the printer from your computer.

2. Rebrick (pull out power supply, black box where the power cord is plugged in at the back of the printer, and put it back after 30 seconds).

2. On your computer, go to Control Panel > Printers and Faxes.

3. Delete the Lexmark print object.

4. Reboot your pc.

5. When your pc turns on, reconnect the printer.

6. Wait until your pc fully recognizes the USB connection. To check, go to Control Panel > Printers and Faxes. If you see a new Lexmark print object in the list, then try to print/scan again.

Turn the printer off. Unplug it from the power source. Press and hold the power button for 45 to 60 seconds. Then plug it back into the power source and turn the printer back on. This is called a "hard reset" and should return the scanner position back to default.

Good luck!

Hi,

Computer turns on but no display. This issue is commonly caused by electrical static on the motherboard. Try doing a power drain.

If this computer is a laptop:
1. Turn the computer off by pressing the power button for a bout 5seconds.
2. Take the battery out of the computer.
3. Unplugged the ac adapter.
4. Press and hold the power button for about 30 seconds. (without any power source)
5. Put the battery back in and plug the ac adapter back into the computer.
6. Turn the computer back on.

If this computer is a desktop:
1. Turn the computer off by pressing the power button for a bout 5seconds.
2. Unplug the power cable from the computer.
3. Press and hold the power button for about 30 seconds. (without any power source)
4. Plug the power cable back into the computer.
5. Turn the computer back on.

Thank you for choosing FixYa! have a good one!

I think you mean it looks like one of these here on google images

Lots of places have them but the come in different sizes and you need to get the correct one.

Tandy, Radio shack, The source, Realistic, or most electronic component stores

WELL, After a year I alone, without any help from UNIDEN, FIGURED IT OUT.
1. TURN IT OFF, UNPLUG AC JACK IN THE BACK!
2. REMOVE Backup battery cover "underneath" scanner! TAKE ALL 3 BATTERIES OUT.
3. I PUSHED THE POWER BUTTON TO BLEED ANYTHING OFF IN THE CAPACITORS, IF IT HAS ANY INSIDE?
4. PUSH THE"2", "9", AND "HOLD BUTTONS DOWN, THEN PLUG THE A.C. BACK IN ON THE BACK OF THE SCANNER.
5.You WILL notice while you are doing STEP#4 THAT THE DISPLAY SAY'S "CLEAR". ALL FREQUENCIES WILL BE CLEARED IN THE MEMORY!! THEN TURN Scanner OFF reinstall the BATTERIES, TURN BACK ON AND START PROGRAMMING!! THIS WAS FOR A "BC340CRS" SCANNER

I've done it, using an adjustable power supply all i needed was 12VDC - 2Amp, the power connector going to the scanner is a 4 pin mini-DIN male, so i've ripped of the cable from the original bad power module, cable has inside 2 wires one black one white and a shielding. Black and schielding are connected together and are going to the minus, the white one is going to +12V

guess what? .... my scanner is working again