How do you simply add/subtract on a HR-10-TM Casio mini desktop printing calculator?
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
on Feb 14, 2019
E004 Error INIT/FC
You need to finish the flag clear.
Turn key to PROGRAM mode.
Turn power off at wall.
Hold RECEIPT FEED down - keep your finger on it.
Turn power on at wall.
Wait 5 seconds, then let go of RECEIPT FEED.
You should see "FFFFFFFFFF" on display.
Wait for print out.
Turn back to REG mode (you may need to sign back on)
Casio Parts Cash...
on Feb 12, 2019
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