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You have turned the key before you finished in the previous mode. Turn the key back to where it was before and finish what you started in that mode, then turn the key and e1 should be gone.
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If anyone needs more information, the manual is here: http://the-checkout-tech.com/manuals/cashregisters/Casio2.php

Casio Parts Cash... | Answered on Mar 03, 2019


Download the ones you can. In all likelihood, they have the same features as the one you want. Explore them you might grow to like them.

Casio Calculator... | Answered on Mar 02, 2019


It is 3 years/5 years warranty depending on your country.
Call CASIO warranty or contact dealer.

Casio Celviano... | Answered on Feb 21, 2019


The main circuit board has failed. Will Cost about 300-400 dollars to replace if not still under warranty.

Casio AP-620... | Answered on Feb 21, 2019


Hi there,

Press AC first, then hold down the RATE SET % button for 2 seconds, then input the rate and press RATE SET % button again

And you should be away :-)

Casio Office... | Answered on Feb 15, 2019


May need a battery replacement. My solar atomic watch battery died after 3 months. Casio said the battery was not covered by the warranty. Check this YouTube video for the battery replacement process:

http://www.youtube.com/watch?v=ogCz2vjUKVg

Casio Protrek... | Answered on Feb 15, 2019


You don't need to reset factory.
You just need to change the setting of LOCAL CONTROL.
Lets start :::
While holding TONE / SETTING button,press key D#7 at 7th octave (highest octave on the right hand). Then release. That's all.
Then the sound must be heard..



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Casio PX120... | Answered on Feb 14, 2019


the function buttons are labeled + and -
to add put in the number then press the + button then put in the next number and + and son for all the numbers you are adding up
to subtract put in a number then press the- button ,then put in the next number and press the - button and so on
to do a combination calculation put in a number then press the + button and so on until you come to a number that you want to subtract in which case you put in that number then press the - button and if the next number is to be added ,put the number in and press the + button

Casio Office... | Answered on Feb 14, 2019

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