Dell A940 All-In-One InkJet Printer Logo

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Posted on Dec 08, 2007
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Dell A940 - Unlock Scanner then press power

The unlock scanner message appears. What am I supposed to do?

Thanks.

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  • 6 more comments 
  • Go4It Dec 08, 2007

    Thanks pashs19. Your explanation was very clear. I have done this previously and it does nothing to clear the message to unlock the scanner.

  • Iwoman Dec 18, 2007

    Said unlock scanner and the turn on power. Where do I unlock it?

  • Anonymous Feb 15, 2008

    Error message Unlock Scanner then Press Power.

    I lifted the lid pushed the unlock lever left of the green support. turned power back on. repeated about 100 times. Unplugged the printer. Unistalled and reinstalled the software and tryed the scanner lock lever about 10 more times. Is there a solution or is it a design flaw and time to buy another?

  • bk51 Feb 15, 2008

    will not print color

  • Anonymous Aug 08, 2008

    when i try to scan a document on my dell 946.It comes up with applications not found.How do i fix this

  • bluchimp Sep 15, 2008

    When I try to scan an image using my visioneer one touch 9000 scanner a message keeps appearing telling me that the scanner is locked. The switch at the bottom is in the unlock position & I have re-installed the software but message keeps appearing.

  • Anonymous May 22, 2009

    it is asking me to unlock scanner, and i dont know how to do that.

  • 0u812 May 11, 2010

    need help with error code "Unlock Scanner". It is unlocked. The error code will not go away

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1 Answer

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  • Master 556 Answers
  • Posted on Dec 08, 2007
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See

http://support.dell.com/support/edocs/systems/a940/a940en1.pdf

Page iv identifies the location of the scanner lock

Page 44 contains the following

• You unlock the scanner bed. For help locating the scanner lock, see the picture of the printer on page iv.

Page 51 contains

Unlock Scanner message
The scanner is locked. To unlock it:
1 Press Power to turn the printer off.
2 Use both hands to lift the printer (scanner unit) until the scanner support
holds it open.
To the left and beside the scanner support is the scanner lock. For help, see
page iv.
3 Pull the scanner lock toward you to unlock the scanner.
4 Using both hands, lift the printer (scanner unit).
5 Push and hold the scanner support back.
6 Lower the printer (scanner unit) until it is completely closed.
7 Press Power to turn the printer back on.

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5helpful
1answer

How do I unlock my scanner?
Channel Lockout You can lock out a channel so it is not scanned. Channel Lockout does not erase the frequency from the channel. You can lock out up to 50 channels, including the Priority channel.
Lockout information is retained in the memory when the scanner is turned off.To Lock out a Channel
Example: Suppose you want to lock out Channel 2 because it stops on transmissions you don't want to hear.Press LOCKOUT when the scanner stops on Channel 2.The scanner locks out Channel 2, Then it immediately advances to the next channel that is not locked out, and resumes scanning.In the Manual mode, press LOCKOUT to lock out the displayed channel. Pressing LOCKOUT does not advance to the next channel in Manual mode.L/O appears in the display to indicate the displayed channel is locked out.Whenever you want to search for channels that are locked out, press MANUAL repeatedly to go through all 50 channels. If a channel is locked out, L/O
appears in the display.Restore a Locked Out Channel To unlock a channel so that it can be monitored during scanning:1. Press MANUAL repeatedly to find the locked out channel.2. Press LOCKOUT again to unlock the displayed channel. L/O no longer appears in the display.Restore All Locked Out Channel To unlock all channels, you must be in the Manual Mode.1. Press MANUAL.
2. Press and hold LOCKOUT to unlock all channels. The L/O indicator goes out on any channel previously locked out.
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Sep 18, 2011 • Uniden BC248CLT Base Scanner
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Received an error code 50c on my Dell printer
Regarding the Dell A940 "Error 50c"....the user guide doesn't seem to mention "Error 50c". They do, however, mention a "Cartridge Error" on page 52 of the manual. They claim this means that the printer has detected a short circuit (fuse/resister) in the cartridge. As you may or may not have noticed in the manual, this is what they recommend doing about it:

1) Press Power to turn the printer off.

2) Lift the printer cover/lid (scanner unit) until the scanner support holds it open.

3) Turn the printer on.
The ink cartridge carrier moves and stops at the loading position unless the printer is busy.

4) Remove the color ink cartridge.

5) Lower the printer (scanner unit) until it is completely closed.
If the error message displays again, replace the black cartridge with a new black cartridge.

If the error message does not display, repeat steps 1–3 and then go to step 6.

6) Reinstall the color cartridge and remove the black ink cartridge.

7) Lower the printer (scanner unit) until it is completely closed.

If the error message displays again, replace the color cartridge with a new
color cartridge.
If there is no error message (indicated by flashing lights), repeat steps 1–3 and then reinstall both ink cartridges.
8) Lower the printer (scanner unit) until it is completely closed.

If you get the error message again, while both cartridges are installed, replace both of the cartridges.

Basically, what they want you to determine is,....if the short circuit is with the "black ink" cartridge or the "color ink" cartridge and then replace the cartridge that has the problem.

Thanks for all the ideas and help ; )
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Apr 27, 2010 • Dell A940 All-In-One InkJet Printer
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Dell a940 AIO makes noise as soon as i turn it on then displays unlock scanner - tried to but will not unlock
Found this: http://support.dell.com/support/edocs/systems/a940/a940en1.pdf

Page iv identifies the location of the scanner lock

Page 44 contains the following

• You unlock the scanner bed. For help locating the scanner lock, see the picture of the printer on page iv.

Page 51 contains

Unlock Scanner message
The scanner is locked. To unlock it:
1 Press Power to turn the printer off.
2 Use both hands to lift the printer (scanner unit) until the scanner support
holds it open.
To the left and beside the scanner support is the scanner lock. For help, see
page iv.
3 Pull the scanner lock toward you to unlock the scanner.
4 Using both hands, lift the printer (scanner unit).
5 Push and hold the scanner support back.
6 Lower the printer (scanner unit) until it is completely closed.
7 Press Power to turn the printer back on.

Hope it helps.
Read full answer
Oct 25, 2009 • Dell A940 All-In-One InkJet Printer
0helpful
1answer

Getting error, "cartridge error" 50C. Dell All-in-one printer, model A940
Hi there Error 50c
Yes this allways happens.
Regarding the Dell A940 "Error 50c"....the user guide doesn't seem to mention "Error 50c". They do, however, mention a "Cartridge Error" on page 52 of the manual. They claim this means that the printer has detected a short circuit (fuse/resister) in the cartridge. As you may or may not have noticed in the manual, this is what they recommend doing about it:

1) Press Power to turn the printer off.

2) Lift the printer cover/lid (scanner unit) until the scanner support holds it open.

3) Turn the printer on.
The ink cartridge carrier moves and stops at the loading position unless the printer is busy.

4) Remove the color ink cartridge.

5) Lower the printer (scanner unit) until it is completely closed.
If the error message displays again, replace the black cartridge with a new black cartridge.

If the error message does not display, repeat steps 1–3 and then go to step 6.

6) Reinstall the color cartridge and remove the black ink cartridge.

7) Lower the printer (scanner unit) until it is completely closed.

If the error message displays again, replace the color cartridge with a new
color cartridge.
If there is no error message (indicated by flashing lights), repeat steps 1–3 and then reinstall both ink cartridges.
8) Lower the printer (scanner unit) until it is completely closed.

If you get the error message again, while both cartridges are installed, replace both of the cartridges.

Basically, what they want you to determine is,....if the short circuit is with the "black ink" cartridge or the "color ink" cartridge and then replace the cartridge that has the problem.

You may have to buy a new cartrige.
Please all I ask is call back and just gave a vote, it will gave me some satisfaction to know am helping some one, so I will keep on helping.
All The Best: Pineworks
Read full answer
Oct 13, 2009 • Dell A940 All-In-One InkJet Printer
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Lexmark x6170 How do I unlock the scanner?
This is the user manual for your printer...

http://www.lexmark.com/publications/pdfs/x6100/eng/ug.pdf


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Using the scanner and fax on the Dell A940 printer
You can download the user manual from

support.dell.com/support/edocs/systems/a940/a940en1.pdf

Have fun!
Please make sure to rate this solution. Thanks.
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Lexmark x5150 scanner locked
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The scanner is locked. to unlock it
1. Press Power to turn the All-in-one off.
2. lift the scanner unit until the scanner support holds it. To the left and beside the scanner support is the scanner lock
3.pull the scanner lock toward you to unlock the scanner.
4. close the scanner lid.
5. power on.
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