CITIZEN CX-80 - Manual (Page 2)

KEYS AND SWITCHES DESCRIPTION
POWER/PRINT
OFF ON PRINT
[fFEEp] [ print ]
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Numerical key
Used to enter number into calculator.
Decimal point key
Used to enter decimal point.
Change sign key
Reverse the sign of the data of the X-register.
Multiplication and division key
Stores multiplication and division orders and performs
multiplication and division orders stored previously.
Perform repeat multiplication and division calculation.
Equal key
Performs multiplication, division, %, constant calculations
and other calculations.
Digit Shift Key
Shift right the displayed number per digit before any
function key be pressed.
CE/C
0 -
0
0
M*
m O
Clear/Clear entry key
Used for clearing wrong entry or registered amount.
Memory contents are not cleared.
Percent key
Performs percent calculations.
a. A X B % -> A • B / 100
(Add on discount calculations are possible)
b. A - B % - > A / B X 100
Sub total key
Used to display and print the contents of the total memory..
Total key
Display and print the contents of the total memory and
clears it.
Plus key
Adds an amount to the accumulator. To add the same
amount more than one time (repeat addition), enter that
amount once and depress the Plus key as many times as
necessary. If this key is depressed immediately after [%]
key, it works as percent plus key.
Minus key
To subtract the same amount more than one time (repeat
subtraction), enter that amount once and depress the Minus
key as many times as necessary. If this key is depressed
immediately after [%] key, if works as percent minus key.
Memory total key
Display and print the contents of the independent memory
and clears it.
Memory subtotal key
Display and print the contents of the independent memory.
Mark-up key
For the calculation of sales or purchase price with profit
margin.
Paper feed key
ME)