Question about Canon CD-4050 Path-Through Scanner

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Canon cd-4050 Scanner has message to change battery, How do you reset error message after you change the battery.

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  • aalafalot Mar 21, 2008

    Please elaborate! Huh?

    Quit then on the smaller window that comes up tap L, L, R, L?

  • kshaw Oct 07, 2008

    I had the same problem. Now the scanner window freezes and the disk won't come out!

  • tbellamy Jan 20, 2009

    Changed the battery, but stiil receive a message at power-on "battery Life Exceeded. Panel shows inatalled Dec. 2006 and to be replaced Dec 2008. How do I update the install and expire dates?



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On the main screen tap the "QUIT" in the upper right hand corner of the scrreen. This should bring up a smaller box asking "Are sure you want to quit?" with a "Cancel" and an "OK" tab. Do not select either tab, instead tap you finger on the left side of the small box twice, then on the right side once, then again on the left side (L L R L) in rapid manner. This should bring up a small box stating you are in "Service Mode", tap "OK". This should bring up a box with 3 tabs at the top. Tap the "Battery" tab. The next box will have a tab on the lower left side "Exchange Battery", tap it, then tap "OK" on the next screen. This should set the battery install date to the current date and the expiration date 2 years out. Back out and shut down and reboot. You should no longer get the "Replace battery" message. The screen should display the new dates for the battery.

Hope this helps.

Posted on Jan 21, 2009

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The last two guys were almost right. You need to have a mouse plugged into the unit. Then turn it on. When you get the battery needs to be replaced, use your mouse and click okay. Next you will click on the Quit tab, in the top right corner. When the "are you sure" Quit box appears use your mouse and click 2 times on the left side of the box, then one time on the right, then one more time on the left. You don't have to be fast doing it. Hope this helps, cause I tried 100's of different ways.

Posted on Oct 08, 2009


Quit then on the smaller window that comes up tap L,L R,L reasonably fast to go into service mode.

Posted on Jan 23, 2008

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