2. Connect the adapter cord to the socket on the back of the calculator.
3. Plug the adapter into an electrical outlet.
Warning
Using any AC adapter other than the appropriate TI adapter
may damage the calculator and void the warranty.
Installing or Replacing Batteries
1. Press V. Unplug any connected AC adapter.
2. Remove the battery compartment cover from the bottom of the
calculator.
3. If necessary, remove the old batteries.
4. Insert new batteries in the compartment as shown in the diagram
inside the battery compartment.
5. Replace the battery compartment cover.
Installing the Paper Roll
Caution:
Avoid placing a double thickness of paper into the mechanism.
Do not pull the paper through the mechanism without pressing &.
1. If necessary, press G to turn the calculator on, and press
2. Remove the printer compartment cover by placing a thumb on each
3. Go to Page 2 and follow the instructions for the size of the paper roll.
PRINT
to turn the
of the lower ridged corners of the cover. Push until the cover pops
open, and lift the cover off.
display indicator off.
S
1
To install a small paper roll: (continued from Page 1)
4. Unroll a few inches of paper from the small roll and cut the end
squarely.
5. Hold the paper so that it unrolls from the bottom, and insert the end
of the paper into the slot under the printing mechanism.
6. Press & until the paper feeds out of the top of the printer
compartment.
7. Place the small roll of paper inside the compartment.
8. Feed the end of the paper through the slot behind the clear plastic
“window” of the printer compartment cover. Then snap the
compartment cover back onto the unit.
To install a large paper roll: (continued from Page 1)
4. Lift the paper holder so that it extends behind the printer
compartment.
5. Insert the end of the paper into the paper slot on the back of the
calculator as shown on the next page. To avoid paper jams, use
quality bond paper.
2
6. Insert the end of the paper into the slot under the printing mechanism.
1. Press V.
2. Remove the printer compartment cover.
3. Remove the ink roller from the right
side of the compartment. Insert your
index finger, nail down, under the tab
on top of the ink roller. Gently lift the
ink roller out of the compartment.
4. Lower the new ink roller (IR-21) into
the compartment and align the hole
in the ink roller with the pin in the
compartment. Press down until it
snaps into place.
5. Replace the compartment cover.
7. Press & until the paper feeds out of the top of the printer compartment.
8. Feed the end of the paper through the slot behind the clear plastic
“window” of the printer compartment cover. Then snap the
compartment cover back onto the unit.
9. Place the paper roll on the paper holder.
Note
To prevent damaging the printer (which may void the warranty),
turn the printer off when operating the calculator without paper. To turn
PRINT
it off, press S so that
is not displayed.
Replacing the Ink Roller
Warning
Never refill or moisten the old ink roller. This can damage the
printing mechanism and void the warranty.
3
Key Descriptions
number is preceded by a # sign. You can also enter decimal points to
separate parts of the number; for example, to print a date.
clear an entry; press G twice to clear a pending operation.
twice to clear the memory.
division operation is pending, F completes it and subtracts the
result from memory.
operation is pending, N completes it and adds the result to memory.
decimal setting (if Q = 2, 2.349 rounds to 2.35).
decimal point (key in 5321 to enter 53.21).
decimal point (key in 3 x 250 to enter 3 x 2.50).
Advances the paper.
&
Turns the calculator’s printer on and off.
S
Selects the rounding setting. See “Rounding.”
R
Prints a reference number or date without affecting calculations. This
/
Selects the decimal setting. See “Using Decimals.”
Q
+
Changes the sign (
!
Calculates the selling price and profit or loss amount on an item.
#
Turns on the calculator. If the calculator is on, press Gonce to
G
Interprets the number in the display as a percentage.
>
Press U to display and print the value in memory; press
U
Subtracts the displayed value from memory. If a multiplication or
F
Adds the displayed value to memory. If a multiplication or division
N
or –) of the displayed number.
U
Rounding
No indicator
9
:
Using Decimals
No indicator
0,1,2,3,4,6
A
A
II
R
Results are rounded up or down, depending on the value and
Results are rounded up (if
Results are rounded down (if
= 1
, 2.33 rounds to 2.4).
Q
= 1
Q
, 2.33 rounds to 2.3).
Q
The number of decimal places varies based on the result.
Sets the number of decimal places to 0, 1, 2, 3, 4, or 6.
Lets you add and subtract numbers without entering the
Lets you multiply and divide numbers without entering the
4
Clearing Errors and Overflows
5
52.5
5
4
.25.
0
0
4
Entry Errors
Press G to clear an incorrect entry.
Error and Overflow Conditions
If you divide by zero or calculate a selling price using a margin of 100%,
0 .*
an error occurs. The calculator prints
E
.
displays
and a row of dashes and
An overflow occurs if you calculate a result with too many digits for the
calculator to display or print. The calculator displays
E
and prints a row
of dashes and the first ten digits of the result with the decimal shifted 10
places to the left of its correct position.
To clear an error or overflow condition,
press G. The memory is not
cleared unless the error or overflow occurred in a memory calculation.
Performing Basic Calculations
Squares
2.52 = 6.25
PressDisplayPrint
2.5 ?
G
Reciprocals
PressDisplayPrint
G
25 % 3
3
1/25 = 0.04
3
= 2, R = No indicator
Q
6.2
0.0
6.2
1.0
1.0
0.0
2.
x
=
∗
P
25
=
∗
=
∗
5
Using Memory Operations
5
.
M
0
.
M
5
M
5
.
M
5
5
Multiplication with Memory Keys
and 5 items at 4.95. By using the memory, you will not disturb a current
calculation.
PressDisplayPrint
U U †
4.95 ? 5
U ††
4.95 ? 5 F
U
†U U
††
†††
10.5 ? 3
N
†††
clears the memory.
You recall the value in memory.
You decide not to order the last item.
You need the total of 3 items at 10.50
N
31.5
24.7
56.2
24.7
31.
10.
3
31.50M+
4.95x
5
24.75M+
56.25M
4.95x
5
24.75M–
31.5M
x
=
=
◊
=
◊
Calculating Gross Profit Margin
Performing a GPM Calculation
1. Enter the cost of the item and press ?.
2. Enter the profit or loss amount. Enter a loss amount as a negative
value.
3. Press #.
Sample GPM calculations are shown on the next page.
6
Calculating a Profit Amount
.65.
3
3
.
6
6
.
5
.
5
.
0
.
0
5
5
.
5
An item cost you 65.00. You want to earn a
40% profit. Calculate the selling price.
PressDisplayPrint
65
G
?
40
#
Calculating a Loss Amount
65
40.M%
108.3
108.3
An item cost you 35,000. You must sell it,
but can only afford to lose 33.3%. Calculate the selling price.
PressDisplayPrint
35000
G
33.3 !
#
?
35,000
26,256.5
35000.x
–33.3M%
26256.5
Calculating Percentages
Percent
49 x 15%
PressDisplayPrint
G
15
>
49
?
49
7.3
Add-On
1,450 + 15%
PressDisplayPrint
G
15
>
1450
9
1,450
1,667.5
Discount
69.95 - 10%
PressDisplayPrint
G
10
>
69.95
.
69.9
62.9
49.x
15
7.3
1450.+
15
1667.5
69.95–
10
62.9
x
∗
∗
%
∗
%
∗
%
∗
7
Percent Ratio
5
5
0
.
0
.5.
0
0
0
0
.66.
0
0
0
0
PressDisplayPrint
G
25
>
29.5 is what percent of 25?
29.5
%
118.0
29.
29.
118.0
ö
25
%
∗
Using Constants
Multiplying by a Constant
The first number in a multiplication problem is the constant multiplier.
PressDisplayPrint
5
G
?
3
3
4
3
Note:
You can also find different percentages of a constant value by
completing the calculation with > instead of 3.
Dividing by a Constant
The second number in a division problem is the constant divisor.
PressDisplayPrint
66
G
%
3
3
90
3
5 x 3 = 15 5 x 4 = 20
5
15.0
20.0
66 ÷ 3 = 22 90 ÷ 3 = 30
66
22.0
30.0
15.0
20.0
22.0
30.0
x
3.=
∗
4.=
∗
÷
3.=
∗
90.=
∗
8
9
Prise en main rapide
Installation de l'adaptateur AC
1. Appuyez sur V.
2. Branchez le cordon adaptateur sur la prise située à l'arrière de la
calculatrice.
3. Branchez la calculatrice sur une prise de courant.
Avertissement
d'endommager la calculatrice et de rendre la garantie caduque.
Installation ou remplacement des piles
1. Appuyez sur V. Débranchez le cordon adaptateur de la prise.
2. Retirez le capot du compartiment à piles situé au-dessous de la
calculatrice.
3. Retirez, si nécessaire, les anciennes piles.
4. Insérez les nouvelles piles dans le compartiment selon le schéma
qui se trouve à l'intérieur de ce compartiment.
5. Replacez le couvercle du compartiment à piles.
Installation du rouleau de papier
Attention :
mécanisme. Pour retirer le papier du mécanisme, vous devez appuyer
préalablement sur &.
1. Si nécessaire, appuyez simultanément sur G pour allumer la
calculatrice et sur S pour désactiver l'indicateur
2. Retirez le couvercle du compartiment de l'imprimante en plaçant vos
pouces sur chacun des angles striés inférieurs de celui-ci.
Maintenez la pression jusqu'à l'ouverture du couvercle et retirez-le.
3. Reportez-vous page 2 et suivez les instructions fournies concernant
la taille du rouleau de papier.
L'utilisation de tout autre adaptateur AC risque
Evitez d'introduire du papier à double épaisseur dans le
PRINT
.
10
Pour installer un petit rouleau de papier : (suite de la page 1)
4. Déroulez quelques centimètres de papier du rouleau et découpezen l'extrémité.
5. Maintenez le papier de sorte qu'il se déroule à partir du bas et insérez
l'extrémité dans la fente située sous le mécanisme d'impression.
6. Maintenez enfoncée la touche & jusqu'à ce que le papier ressorte
sur la partie supérieure du compartiment de l'imprimante.
7. Placez le petit rouleau de papier à l'intérieur du compartiment.
8. Insérez l'extrémité du rouleau dans la fente située derrière la “fenêtre”
en plastique transparent du couvercle du compartiment de l'imprimante.
Replacez ensuite le couvercle du compartiment sur l'unité.
Pour installer un grand rouleau de papier : (suite de la page 1)
4. Soulevez le porte-rouleau de manière à le faire passer derrière le
compartiment de l'imprimante.
5. Insérez l'extrémité du papier dans la fente à papier située à l'arrière
de la calculatrice comme illustré page suivante. Pour éviter des
bourrages de papier, utilisez du papier de bonne qualité.
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