Change the VAT rate on my Sharp Elsi Mate EL-334A calculator

SOURCE: Need to change tax function on Sharp EL-334A

I had the same problem and finally figured it out. Here's what you do:

Press C-CE twice
Press +TAX (Rate set)
Key in your new tax rate as an integer (e.g. 5)
Press +Tax (Rate set) again
Press C-CE

Then you're ready to calculate with the new rate!

Now what's the GT button for?

SOURCE: errors??

Sounds like the printwheels are out of time. Sorta of major repairs. gears on side of printer have to be lined up in proper areas. there are small black arrows on the gears. Best bet is look at a working machine and try to line up. Machine may not be worth the time unless you jsut want to try it. Sharp uses the same printers in many different models.

SOURCE: SETTING TAX RATE

On your Sharp press
CA
C.CE
C.CE
RATE SET(+TAX Key)
175(No decimals for they are not taken into consideration)
RATE SET(+TAX Key)

To check if all went well press
CA
C.CE
C.CE
RATE RECALL(-TAX Key)
It should read your tax rate.

SOURCE: I have a Sharp elsi mate EL-1611P and I am trying

Push as many buttons at the same time as possible. Throw the calculator on the floor. That should do it.

SOURCE: HOW DO SET TAX RATE

Easy. Press M- key [has RATE SET] above it. This will shown your current setting say 17.5. Amend to 20.0 and Press M- key again. Rate should now be set at 20%.
Test by entering:
100 and pressing +TAX key - Answer should be 20.
100 and pressing -TAX Key - Answer should be 83.33