Texas Instruments TI-5660 Manual

50194LCV.DOC TI-5019 4L Front Cover Robin Hunt-Smith
Revised: 04/12/00 5:19 PM Printed: 06/23/00 9:59 AM Page 1 of
2
50194LCV.DOC TI-5019 4L Front Cover Robin Hunt-Smith
Revised: 04/12/00 5:19 PM Printed: 06/23/00 9:59 AM Page 1 of
2
TI-5660
Guidebook
Manuel d’instructions
Manual de instrucciones
Manual de instruções
English, Français, Español, Português
Antes de usar (o ensamblar) el producto lea cuidadosamente este instructivo
© 1998, 2000 Texas Instruments Incorporated

1
Getting Started
Installing the Paper Roll
1. Remove the printer compartment cover.
2. Lift the paper holder so that it extends behind the printer
compartment.
3. Remove any packing materials from the printer compartment.
4. Replace the printer compartment cover.
5. Plug the calculator into an electrical outlet.
6. Set the power switch on the right side of the calculator to on
(
P
)
.
7. Place the paper roll on the paper holder.
8. Insert the end of the paper into the paper slot on the back of the
calculator as shown. To avoid paper jams, use quality bond paper.
9. While feeding the paper into the slot, press and hold
&
.
Note
To prevent damaging the printer (which may void the warranty),
move the PRINTER switch to OFF when operating the calculator without
paper.
Replacing the 2-Colour Ink Ribbon
1. Remove the paper roll and press
&
to run out any remaining paper.
2. Set the power switch on the right side of the calculator to off (
S
).
3. Remove the printer compartment cover.
4. Lift each ribbon spool until the ribbon is clear of the printer.
5. Lower the new ribbon (
red side on the bottom
) into the compartment
and press down until it snaps into place.

2
6. Place the ribbon around the guides and along the print drum as
shown here.
7. Replace the printer compartment cover.
Key Descriptions
&
Advances the paper.
2
Clears the entire pending operation except the memory or
the grand total.
O
Changes the sign (
+
or
–
) of the displayed number.
>
Interprets the number in the display as a percentage.
I
Clears an entry or an error or overflow.
=
Computes the percentage of change between two values.
(The price increase from 9.75 to 11.25 is 1.50, and the
percentage increase is 15.38%)
#
Calculates the selling price and profit or loss amount on an item.
(
Removes the last digit entered in the display.
4
Prints a reference number or date without affecting calculations.
!
Adds the stored tax rate to the value in the display.
"
Subtracts the stored tax rate from the value in the display.
/
Pressed once, displays and prints the grand total of all
totals. Pressed twice, clears the grand total. This is active
only if PRINTER = GT.
:
Displays and prints the total, but does not clear the total.
E
Displays and prints the total and clears the total. Also
resets the item counter (IC) to zero.
0
Displays and prints the value in memory and clears the
memory. Also clears Mfrom the display and resets the
memory item counter to zero.

3
;
Displays and prints the current total in memory but does
not clear the memory.
F
Subtracts the displayed value from memory. If a
multiplication or division operation is pending,
F
completes it and subtracts the result from memory.
N
Adds the displayed value to memory. If a multiplication or
division operation is pending,
N
completes it and adds
the result to memory.
Using Decimals (DECIMAL Switch)
+
Lets you add and subtract numbers without entering the
decimal point (key in 5321 to enter 53.21).
F
The number of decimal places varies based on the result.
0,2,3,4,6
Sets the number of decimal places to 0, 2, 3, 4, or 6.
Rounding (ROUND Switch)
: Results are rounded down (if DECIMAL
= 1
, 2.39 rounds to 2.3).
5/4
Results are rounded up or down, depending on the value and
decimal setting (if DECIMAL =
2
, 2.349 rounds to 2.35).
9 Results are rounded up (if DECIMAL
= 1
, 2.33 rounds to 2.4).
Entering a Tax Rate (TAX Switch)
SET Lets you enter a tax rate to perform tax calculations.
CALC Stores the tax rate.
Printing (PRINTER Switch)
OFF Calculations are displayed but not printed.
ON Calculations are displayed and printed.
IC Both the printer and item counter are active. To clear the
item counter, press
E
or
0
.
GT Accumulates a running grand total of all calculations you
perform until you clear the grand total. To print a grand
total, press
/
. To clear the grand total, press
/
again.
Positive entries and results are printed in black; negative entries and
results are printed in red.

4
Clearing Errors and Overflows
Correcting Entry Errors
If you have not pressed an operation key:
•
To clear an incorrect entry, press
I
. You can then enter the
correct value and continue with your calculation.
•
To clear the last digit, press
(
.
If you have pressed an operation key:
•
To cancel an incorrect entry, press the opposite operation key. This
applies only to calculations involving
9
,
.
,
N,
or
F
.
Error and Overflow Conditions and Indicators
If you divide by zero or calculate a selling price using a margin of 100%, an
error occurs. The calculator prints ERROR
0 .*
and displays Eand
0
.
An overflow occurs if you calculate a result with too many digits for the
calculator to display or print. When this occurs, the calculator:
•
Displays Eand the first 12 digits of the result with a decimal point 11
places to the left of its correct position.
•
Prints ERROR and the first 12 digits of the result with the decimal
shifted 11 places to the left of its correct position.
To clear an error or overflow,
press
2
. The memory is not cleared
unless the error or overflow occurred in a memory calculation.
Performing Basic Calculations
Addition and Subtraction
12.41 – 3.95 + 5.40 = 13.86
DECIMAL = +, ROUND = 5/4, TAX = CALC, PRINTER = IC
Press Display Print
2
1241
9
12.41 12.41 +
395
.
8.46 3.95 –
002
:
8.46 8.46
U
540
9
13.86 5.40 +
003
E
13.86 13.86
∗

5
Multiplication and Division
11.32
Q
(–6)
P
2 = –33.96
DECIMAL = F, ROUND = 5/4, TAX = CALC, PRINTER = ON
Press Display Print
2
11.32
?
11.32 11.32
Q
6
O '
–67.92 6. –
P
2
3
2. =
–33.96 33.96 –
∗
Squares
2.5
2
= 6.25
Press Display Print
2
2.5
? 3
6.25
2.5
2.5
6.25
Q
=
∗
Reciprocals
1/25 = 0.04
Press Display Print
2
25
' 3 3
0.04
25.
25.
1.
1.
0.04
P
=
∗
=
∗
Using Memory Operations
DECIMAL = 2, ROUND = 5/4, TAX = CALC, PRINTER = ON
Multiplication with Memory Keys
You need the total of three items at
10.50 and five items at 4.95. By using the memory keys, you will not
disturb a current calculation.
Press Display Print
0†
10.5
?
3
N
10.5 x
3. =
M 31.50 31.50 M+
4.95
?
5
N
4.95 x
5. =
M 24.75 24.75 M+
(continued)

6
; ††
M 56.25 56.25 M
U
4.95
?
5
F †††
4.95 x
5. =
M 24.75 24.75 M–
0
31.50 31.50 M
∗
†0
prints the current memory total and clears the memory.
††
You calculate a memory subtotal to see the current total amount
of your order.
†††
You decide not to order the last item.
Calculating Gross Profit Margin
DECIMAL = 2, ROUND = 5/4, TAX = CALC, PRINTER = ON
Calculating a Profit Amount
An item cost you 65.00. You want to
earn a 40% profit. Calculate the selling price.
Press Display Print
2
65
#
65. 65. M
40
3
40.
43.333333333 %
@∗
108.33 108.33
∗
Calculating a Loss Amount
An item cost you 35,000. You must sell
it, but can only afford to lose 33.3%. Calculate the selling price.
Press Display Print
2
35000
#
35,000. 35,000. M
33.3
O 3
33.3 –%
8,743.435859
T∗
26,256.56 26,256.56
∗

7
Calculating Percentages
DECIMAL = F, ROUND = 5/4, TAX = CALC, PRINTER = ON
Percent
49 x 15%
Press Display Print
2
49
?
49. 49. x
15
>
7.35 15. 7.35 %
∗
Percent Ratio
29.5 is what percent of 25?
Press Display Print
2
29.5
'
29.5 29.5
ö
25
>
25. %
118. 118.
∗
Calculating Tax
DECIMAL = F, ROUND = 5/4, TAX = SET, PRINTER = ON
Add-On
1,450 + 15% tax
Press Display Print
2
15, then move TAX
switch to CALC 0. 15. %
1450
!
1,450.
217.5
@
1,667.5 1,667.5
∗
Discount
235
-
17.5%
(Remember to move the TAX switch to SET before you begin.)
Press Display Print
2
17
L
5, then move
TAX switch to CALC 0. 17.5 %
235
"
235.
35.
T
200. 200.
∗

8
Using Constants
DECIMAL = F, ROUND = 5/4,TAX = CALC, PRINTER = ON
Multiplying by a Constant
5 x 3 = 15 5 x 4 = 20
The first number in a multiplication problem is the constant multiplier.
Press Display Print
2
5
?
5. 5. x
3
3
3. =
15. 15.
∗
4
3
4. =
20. 20.
∗
Dividing by a Constant
66 ÷ 3 = 22 90 ÷ 3 = 30
The second number in a division problem is the constant divisor.
Press Display Print
2
66
'
66. 66. ÷
3
3
3. =
22. 22.
∗
90
3
90. =
30. 30.
∗

9
Prise en main rapide
Installation du rouleau de papier
1. Retirez le couvercle du compartiment de l'imprimante.
2. Soulevez le porte-rouleau de manière à le faire passer derrière le
compartiment de l'imprimante.
3. Enlevez tous les emballages du compartiment de l'imprimante.
4. Replacez le couvercle du compartiment de l'imprimante.
5. Branchez la calculatrice à une prise de courant.
6. Positionnez le bouton d'alimentation situé le côté droit de la
calculatrice sur on
(
P
)
.
7. Placez le rouleau de papier sur le porte-rouleau.
8. Insérez le bout du papier dans la fente réservée au papier à l'arrière de
la calculatrice, comme illustré. Pour éviter des bourrages de papier,
utilisez du papier de bonne qualité.
9. Tout en insérant le papier dans la fente, maintenez enfoncée la
touche
&
.
Remarque
Afin de ne pas endommager l'imprimante (ce qui pourrait
annuler votre recours en garantie), lorsque vous utilisez la calculatrice
sans papier, positionnez le bouton PRINTER sur OFF.
Remplacement du ruban encreur de 2 couleurs
1. Retirez le rouleau de papier et appuyez sur
&
afin qu'il n'y ait plus de
papier dans l'imprimante.
2. Positionnez le bouton d'alimentation situé sur le côté droit de la
calculatrice sur off (
S
).
3. Retirez le couvercle du compartiment de l'imprimante.