KEYS AND SWITCHES DESCRIPTION
Numerical key
Clear entry key
Percent key
Sub total key
Total key
Plus key
Minus key
Memory subtotal key
Mark-up key
Paper feed key
Decimal point key
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Change sign key
Multiplication and division key
Digit Shift Key
Equal key
Used to enter number into calculator.
When this key is pressed after an entry of a number. Clear
entry number.
In other situation, clear display and all registered calcula-
tions except memory.
Performs percent calculations.
it.
percent plus key.
the independent memory.
the independent memory and clears it.
margin.
For the calculation of sales or purchase price with profit
When press this key twice, display and print the contents of
subtraction), enter that amount once and depress the Minus
To subtract the same amount more than one time (repeat
When press this key once, display and print the cantents of
Key as many times as necessary. If this key is depressed
immediately after key, if words as percent minus key.
and depress the Plus key as many times as necessary. If
this key is depressed immediately after key, it works as
more than one time (repeat addition), enter that amount once
Adds an amount to the accumulator. To add the same amount
Used to display and print the contents of the total memory.
Display and print the contents of the total memory and clears
Used to enter decimal point.
Reverse the sign of the data of the X-register.
Stores multiplication and division orders and performs multi-
plication and division orders stored previously.
Perform repeat multiplication and division calculation.
Performs multiplication, division, %, constant calculations and
other calculations.
key be pressed.
Shift right the displayed number per digit before any function
to
1(E)
