Question about Canon PIXMA MP830 All-In-One InkJet Printer

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Lock switch Hi El Duderino, My lock switch was already unlocked, But silly me did say my alarm light was on and the screen doesn't work. Hope you can help me. muffin

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Re: lock switch

Sorry muffin I think it might need service. You're saying you can't get into the menu on the unit? Oh BTW scroll down and use the "Add a comment" link to keep this all on one thread. It's much easier that way.

Posted on Nov 28, 2006

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How do I fix a Canon pixma ip6600D printer?

ALARM LIGHT which always glows - RAM error (logic board is dead)

Apr 02, 2015 | Canon Pixma iP6600D InkJet Photo Printer

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How do you release the scanner lock switch on the MP990

Open the document cover of the scanner decision, you should be able to slide the release lock switch towards the hinge side of the document cover. There is a padlock symbol on each side of the switch; the side closer to the hinge is an unlocked padlock. The other side has a locked padlock symbol. If the all-in-one was on, turn it off and wait 5 seconds before turning it back on after unlocking the unit.

If the switch is in the unlocked position and turning the printer off and then on again doesn't resolve the error, the unit needs service. Contact Canon if it is under warranty. (Otherwise, decide if the printer is worth the service call.)

I hope this helps.

Cindy Wells

Oct 30, 2012 | Canon Printers & Copiers

1 Answer

Hello, I have a Canon MP810 printer and the screen shows there is an error with that number: 5020. It says that I have to unlock the locker of the scanner and then restart. I have done it many times...

I have just read it on the other forum..try this one
Error Code 5020:
Scanner lock switch locked. [5020] Release the scanner lock switch and turn the power
off and back on.
Turn the machine off, unlock the scanner lock
switch, then turn the machine on again.

Hope it helps.

Sep 09, 2011 | Canon PIXMA MP810 All-In-One InkJet...

1 Answer

Error light on and saying scanner error


Open the Lid for scanner, check for a switch on the side for Scanner Lock. Try to switch it to unlock position and retry booting up Printer. That should take care of scanner error message.

Hope this helps. Cheers!

Mar 04, 2011 | Epson Stylus CX3200 All-In-One InkJet...

1 Answer

I am having a problem with my printer. When I turn it on the copy light is on and the feed switch light and the alarm light and it says in the screen release the scanner lock switch and turn the power off...

Issue: ERROR LCD: Release the scanner lock switch and turn the power off and back on.
Solution: Unlock the scanner lock switch

The scanner must be unlocked before turning the unit on.

Turn off the power.

Lift the document cover.

The scanner lock switch is on the left hand side of the underside of the document cover.

Slide the scanner lock switch to the release mark (an open padlock icon).

Lock the switch before transporting.

Close the document cover.

Turn the machine on.

If machine still is not working repeat the power off / on cycle waiting 5 seconds in between.

Jan 25, 2011 | Canon MP830 All-In-One Printer

3 Answers

Scanner locked

check documentation for the exact location of the lock, usually located on the flatbed.

Sep 17, 2009 | Gestetner DSm515pfd Digital Copier -...

1 Answer

I have an Okidata Pacemark 3410 and the alarm light is blinking and will not print. i turn on and off and the alarm light just comes back on.

Normal 0 This doesn’t help fix all printers because each situation is different and in most cases we don’t have enough information to determine the fix. So hope this will provide some help.

Could have a corrupt driver.
Disconnect the printer or at least be sure it is turned off. I'd do both and when the CD software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

Dec 29, 2008 | OKI Pacemark 3410 Matrix Printer

6 Answers

Lock switch

Hi muffin, Turn off the machine, open the document cover, and then release the scanner lock switch. You'll see it. Any other problems let me know. Peace, Dude

Nov 24, 2006 | Canon PIXMA MP830 All-In-One InkJet...

1 Answer

"replace transfer kit" for Konica KL-3015

Hi Hexus, Download that manual the directions with diagrams for replacing the transfer kit are on page 40 (in the page numbers on the docs themselves, the Acroreader page number is 51) Hope that helps, El Duderino

Nov 21, 2006 | Konica KL-3015 Laser Printer

1 Answer


Hi Scott, My experience is if there was a jam and it still says it's jammed after clearing the paper you missed some. Even if the sheet that caused the last jam didn't tear it may have moved a torn piece of paper that was in there from before. Check again, really well for small pieces of paper stuck somewhere. Hope that helps. If not let me know and I'll see what else we can do. El Duderino

Nov 16, 2006 | Canon PIXMA MP150 All-In-One InkJet...

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