Casio JF-100TE Calculator - Answered Questions & Fixed issues

You can't. When you think it is going to shut itself off, press some key.

Taking the back off The Casio JF-100 calculator is similar to the ...TE. Remove the two screws at the top back. Place a small screwdriver blade along the seam where the back plate fits into the front plate. There are 3 fasteners on each long side and 1 fastener on each of the front and back sides. Find the spot where it's the easiest to separate the back plate from the top plate (there are only two). Carefully twist the blade to cause an opening. Then proceed sequentially around the perimeter releasing each fastener. The front plate will easily separate from the back plate at this time. There are no parts that will fall-out--don't worry. Replace the battery. Press the front and back plates together to snap the fasteners.

Already answered here: http://www.fixya.com/support/t292440-casio_jf_120er_euro_rate_set

It is solar powred and will turn off by itself. Don't worry it doesn't cost anything.

1. Press [AC]
2. Hold [SET/%] key for about 2 seconds
3. Press [TAX+]
4. Input the tax rate
5. Press [SET/%]

step 1 pess the AC button step 2 press and hold for two seconds the % button step 3 press the tax+ button step 4 input 6 step 5 press the % button that should be the tax set you can check it is set correctly by pressing the AC button and then the tax+ and 6 should be displayed

The way to do it is this; Divide the number by 2, get the integer quotient for the next iteration. Get the remainder for the binary digit, repeat the steps until the quotient is equal to 0.

It is because it is not set up correctly. For you to fix it, just press on the lower right button for few seconds till it displays " cas10" then let go of the button

Here is the Service Manual, but in normal instances, you would just buy another one, or return it to Casio for service.

Casio DR-120LB Service Manual

ManualsLib https://www.manualslib.com > ... > DR-120LB View and Download Casio DR-120LB service manual online. DR-120LB cash register pdf manual download. Also for: Dr-200l, Dr-210l, Dr-320b, Zx-517c, Zx-517a, ... ..

It is math error. See user manual page 331 Appendix 1 for help. Appendix 1. Error Message Table - Casio fx-9750GII User Manual [Page 331] ' ManualsLib Also on Casio website. Errors (casio.com)

If your Casio fx-991EX calculator is displaying [Dec], it means it's in Decimal mode. To switch back to normal calculations, press the MODE button and select the desired mode, such as COMP for computation or MATH for mathematical functions. I think this will solve your problem

The NEWYES NY-991MS and CTIFREE fx-991ES PLUS calculators do not have a dedicated "FACT" button like the Casio FX-83GTX. However, you can still find prime numbers on these calculators.To find prime numbers:NEWYES NY-991MS:Press the "MODE" button.Choose "PRIME" from the list of options.Enter the desired number and press "=" to check if it's prime.CTIFREE fx-991ES PLUS:Press the "MODE" button.Select "TABLE" or "TABLESET."Input a starting point and an ending point, then observe the table for prime numbers.Although the techniques may vary from those used on the Casio FX-83GTX, they prove to be effective for prime number calculations on the designated calculators.

There is a reset button on the back of the Casio. If that does not work, you may find an alternative method in the manual. CASIO HR-100TM USER MANUAL Pdf Download ' ManualsLib

Question edited for clarity and toss in some CAPS. Maths is important, but ritten English is more importanter :>D No idea what any of that means :>/ But this appears to be the answer. Our Maths Expert just retired from Fixya. https://www.google.com/search?q=Solve+s28+to+show+answer+in+terms+of+2+sqrt+7+not+decimal ..

On Page 2 apparently not. It is a very basic machine. You can turn printing off altogether. https://support.casio.com/storage/en/manual/pdf/EN/004/HR-170RC_200RC_WA_EN.pdf ..

Refer to user manual at this link fx-82SOLAR_260SOLAR II_260SOLAR II NF (casio.com) It will tell you the limitations.

Is there lights on, on the printer? Does it have a receipt paper roll in it? You can do a Power Cycle of the Terminal and the Printer. Unplug the printer for the wall socket. Remove the data socket, replace the data socket making sure the connection is tight. Disconnect the terminal from the main power, and count to 20. Plug the terminal back in. Now go to the kitchen and plug the printer back into the mains. The reset should fix it. The rest is in the manual, which I told you earlier today. Yes it is complicated and you may have a network switch if you have multiple terminals and possibly a computer joining everything. If you find that too complicated, call the company that sold you the unit and tell them to bring a new ticket printer with them 'just in case'. That type if ticket printer is fairly specialized, but they are common. They normally don't charge for that type of help In the manual under Remote Printer Control. https://totalpos.co.nz/wp-content/uploads/2020/03/QT6600-Reference-Manual.pdf More here https://www.google.com/search?q=Casio+QT-6600+connect+kitchen+printer ..

To find the percentage of a number: Let's say you want to find 20% of 150.

• Enter the number you want to find the percentage of (150 in this example).
• Press the multiplication key (*).
• Enter the percentage value (20 in this example).
• Press the percentage key (%).

The calculator will display the result, which in this case is 30 (20% of 150 is 30