Your Texas Instruments calculator has a built-in printer for producing a permanent record printout of
your calculations. A big easy-to-read display enables you to check entries or perform quick
calculations without printing.
GETTING STARTED
OFF
POWER
PRT
ON
¦
IC
Connect the calculator to a proper power outlet (110–120V or 220–240V, where
available) using the adapter or install 4 AA (LR6) batteries.
¦
The calculator is turned on by setting the power switch to the PRT position.
Inserting the paper
(see illustrations 1, 2, 3, and 4 on page iii).
1. Turn on the calculator.
2. Open the printer compartment cover by pressing down on its front edge and sliding back in the
direction of the arrow.
3. Fit the roll of paper on the holder so that it unrolls from the bottom, with the loose end toward the
calculator.
4. Cut the end of the paper squarely and insert it firmly into the printer slot on the back of the
calculator. Press & until the paper is in the printing position.
Replacing the ink roller
(see illustrations 5 and 6 on page iii).
1. Turn the calculator off and tear off the excess paper.
2. Remove the printer cover by pressing down on both sides of the front edge and sliding back in the
direction of the arrow.
3. Remove the old ink roller by lifting with the removal tab.
4. Insert the new ink roller into the compartment and press down gently until it snaps into place. Close
the printer compartment.
Note:
The old ink rollers should not be refilled. Replacement rollers can be obtained from your local
retailer. The warranty does not cover ink roller replacement.
1
SELECTION SWITCH SETTINGS
POWER
IC
PRT
ON
OFF
POWER, ROUND, DECIMAL
Set the
ROUND
:
5/4
, and
9
SIGMA
switches as required.
The switch settings are summarized in the following table:
SWITCHSETTINGFUNCTION
POWEROFF
ON
PRT
IC
The calculator is turned off.
No printout is provided; however, the display can be printed by pressing 4.
The printer provides a printout of your calculations but does not count them.
The printer is on, and an item count of additions and subtractions to or from
the register is printed.
ROUND
:
5/4
Rounds the result of a calculation to the selected number of decimal places.
Truncates the result to the selected number of decimal places.
Rounds the result up or down according to its value. For example, when the
DECIMAL
switch is set to 2, the result is rounded up if the third decimal
position is 5 or more and rounded down if it is 4 or less.
9
Ex.
220
Setup:POWER:
Rounds the result up to the selected number of decimal places.
P
6
DECIMAL:
PRT,
2,
ROUND:
SIGMA:
OFF
:
PressDisplayPrintoutPressDisplayPrintout
2
220
'
6
3
DECIMAL+Add mode:
0.0¦C
220.220¦
P
36.66 6¦=
…
36¦66
All results are given with two decimal places. For addition and
subtraction only, a decimal point is automatically placed to the left of the last
two digits entered, unless the number already includes a decimal point.
FFloating mode:
Any results are displayed and printed with the maximum
number of decimal places.
SIGMA
0 2 3 4Fixed decimal mode
ON
Calculation results are automatically added to the content of the add register
: Sets the number of decimals to 0, 2, 3, or 4.
each time 3 is pressed. (See example 10 on page 21.)
OFF
Multiplications-divisions and additions-subtractions are performed
independently.
DECIMAL
0
+F
Ex.
2
3
4
220 P 6
Setup:POWER:
DECIMAL:
2
220
'
6
3
SIGMA
ON
OFF
ROUND:
PRT,
2,
SIGMA:
5/4
OFF
0.0¦C
220.220¦
36.67 6¦=
36¦67
P
…
Note:
The most common set-up is:
POWER:
PRT
, ROUND:
5/4,
DECIMAL:
Use these positions for the examples unless other settings are given.
2
SIGMA:
F,
OFF.
Basic keys
I
2
(
L
/
&
9
.
:
E
?
'
3
>
"
KEY DESCRIPTIONS
Clear Entry
that this key does not clear the add register.
Clear:
Does not clear the memory.
Right Shift:
pressed. Shifts the remaining digits one place to the right.
Decimal Point:
: Clears an entry, enabling you to enter another number in its place. Note
Clears the add register, any pending operations, and the display. 0.C is printed.
Deletes the right-most digit entered from an entry before an operation key is
Enters a decimal point.
Date/Non-Add:
Does not affect calculations. This entry is printed on the left side of the printout; the date
or number is preceded by the # sign.
Paper Advance:
Prints a date (such as 12¦10¦96) or a number for reference purposes.
Advances the printing paper.
Addition and subtraction keys
Add:
Adds a number to the add register. Displays the cumulated result.
Subtract:
Subtotal
affect the contents of the add register.
Total:
Subtracts a number from the add register. Displays the cumulated result.
: Gives the intermediate total from the add register. Using this key does not
Gives the total from the add register, and then clears the register.
Multiplication, division, percent and margin keys
Multiply:
entered.
Divide:
entered.
Equals:
Percent:
calculated.
Percent of Change
result as a delta percent.
Ex.
A product sells for 330 excluding VAT. It
was purchased for 231. What is the %
margin?
Press:
Answer:
Instructs the calculator to multiply the number in the display by the next value
Instructs the calculator to divide the number in the display by the next value
Completes any pending multiplication or division operation.
A time-saver when percentages, ratios, add-ons (ex. of VAT), or discounts are
: Calculates the percent of change between two values and gives the
2 330 = 231
30% of the selling price
3
Ex.
A price has risen from 750 to 990. What is
the percentage price increase?
Press:
2 750 = 990
Answer:
32%
3
3
#
!
N
F
;
0
Gross Profit Margin:
profit (or loss) margin are known.
Ex.
Cost: 594
Profit margin: 40%
Press:
2 594 # 40
Answer:
Selling price: 990
Gross profit: 396
Change Sign
: Changes the sign of the displayed number.
Calculates the selling price of an item when its cost and gross
Ex.
Selling price including VAT: 252
VAT %: 20%
3
Press:
252 # 20 .
Answer:
Selling price excluding VAT: 210
VAT: 42
3
Memory Keys
Calculations in the memory and in the add-register are performed separately. Multiplication and
division (as well as GPM operations) are automatically completed and the result printed when you
press N or F. The symbol M appears on the left of the display to indicate that the memory content
is non-zero.
Add to Memory:
Adds the displayed number into the memory.
Subtract from Memory:
Memory Subtotal:
affect the contents of the memory.
Memory Total:
Displays and prints the number in memory, then clears the memory.
Subtracts the number in the display from the memory.
Displays and prints the number in memory. Using this key does not
AUTOMATIC FEATURES
Repeat operation:
Press 9, ., ? or ' as often as the number is to be repeated.
N
Ex.
5 + 3 + 3 + 3
Press
: 5 . 3 9 9 9
Answer:
Constant:
constant. When ? or ' is used more than once in a sequence ending with a multiplication, the
constant is a composite multiplicand. This number is shown in the display the last time ? is pressed.
In a division problem, or in a mixed sequence ending with a division, the last number entered is taken
as the constant. The constant is cleared by entering a new multiplication or division problem, or by
pressing 2.
Ex.
Press:
Answers:
The constant can be used to find a reciprocal or to raise a number to a power.
Ex.
Press:
Answer:
4
In a simple multiplication problem, the first number entered is automatically taken as the
Q
3 = 15; 5 Q 9
5
5 ? 3 3 9
15; 45
1 P (8 + 12)
8 912 9 E ' 3
0.05
Allows you to repeat an operation using the same number without re-entering it.
Ex.
20 Q 12 Q 12
E
3
3
Press:
20 ? 12 ?
Answer:
P
Ex.
66
Press:
66 ' 3 3 90 .
Answers:
Ex.
12 Q 12
Press:
12 ?
Answer:
2,880
3 = 22; N90 P 3
22; N30
144
3
Ex.
3
3
Press:
Answers:
Ex.
Press:
Answer:
20% = 594; 495 + 60%
495 +
495 ? 20 > 9 60 >
594; 792
3
12
12 ? 3
3
1,728
9
4
ERROR / OVERFLOW
An error or an overflow condition is indicated by an E at the left of the display. All keys except I and
2
are then inoperative. To continue the calculation, press I. To clear the calculator completely,
press 2 0 2.
An error condition occurs when any number is divided by zero (all keys except 2 are inoperative). An
overflow condition occurs when an accumulated total or result has more than 12 digits to the left of the
decimal point.
IN CASE OF DIFFICULTY
¦
Be sure the batteries are not depleted and are correctly installed; if the optional adapter is used,
both ends must be connected.
¦
If you are obtaining calculation errors or the calculator does not respond to keyboard entries:
1. Press 2 0 2. The display should be 0.
2. Check the switch settings. The most common positions are:
POWER:
3. Turn the
¦
If you are getting a faint printout or none at all:
1. Be sure the
2. Check the ink roller for proper installation and sufficient ink supply.
Replace or reinstall as indicated.
If none of the above procedures corrects the difficulty, make a last check with a new ink roller before
returning the calculator for service to your Texas Instruments retailer.
PRT,
POWER
POWER
ROUND:
switch OFF for 10 seconds, then ON and try the calculation again.
switch is set to PRT or IC.
5/4,
DECIMAL:
F,
SIGMA:
OFF.
5
Français
INTRODUCTION
Cette calculatrice de Texas Instruments possède une imprimante intégrée permettant l'impression
permanente de tous vos calculs. Son grand écran offre des conditions optimales de lisibilité des
entrées et des calculs effectués sans impression.
MISE EN ROUTE
OFF
POWER
PRT
ON
¦
IC
Branchez la calculatrice sur secteur (110–120V ou 220–240V, suivant les cas)
au moyen de l'adaptateur ou installez 4 piles AA (LR6).
¦
Mettez votre calculatrice en marche en positionnant le commutateur sur PRT.
Installation du papier
(voir fig. 1, 2, 3, et 4 à la page iii).
1. Mettez votre calculatrice en marche.
2. Retirez le couvercle trasparent en poussant sur les deux bords pour le faire glisser en arrière dans
le sens de la flèche.
3. Installez le rouleau de papier sur le support bleu de manière à le faire dérouler par le bas,
l'extrémité du papier côté machine.
4. Coupez à angle droit l'extremité du papier et insérez-la dans la fente de l'imprimante située à
l'arrière de la calculatrice. Appuyez sur la touche & pour ramener le papier en position
d'impression.
Remplacement du rouleau encreur
(voir fig. 5 et 6 à la page iii).
1. Eteignez la calculatrice (commutateur POWER sur OFF) et déchirez l'excédent de papier.
2. Retirez le couvercle de l'imprimante en appuyant sur les deux bords de la partie frontale.
3. Retirez le rouleau encreur usagé en le soulevant à l'aide de la languette.
4. Placez un rouleau encreur neuf dans le compartiment et faites-le descendre jusqu'à ce qu'il soit
bien en place. Remettez le couvercle en place.
Remarque :
un rouleau encreur usagé ne doit jamais être rechargé sous peine de détériorer le
mécanisme d'impression. Vous trouverez des rouleaux neufs chez votre revendeur. Le
remplacement du rouleau encreur n'est pas couvert par la garantie.
6
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