TI-5660 - Calculator TEXAS INSTRUMENTS - Free user manual and instructions

Product type	Printing calculator
Brand	TEXAS INSTRUMENTS
Model	TI-5660
Power supply	Mains (wall outlet)
Printer	Yes, 2-color ink ribbon (black/red)
Paper roll	Yes, standard width for calculator
Main functions	Addition, subtraction, multiplication, division, memory, tax calculation, percentage, gross margin, power, reciprocal, constants
Number of decimals	Adjustable: F, 0, 2, 3, 4, 6 via switch
Rounding	Adjustable: down, 5/4, up via switch
Print mode	ON, OFF, IC, GT via PRINTER switch
Memory function	Yes (M+, M-, MS, MT, M=) with item counter
Tax calculation	Yes, with rate storage (TAX+ / TAX-)
Margin calculation	Yes (GPM): selling price, profit or loss
Display	Digital display (12 digits in case of error)
Maintenance and cleaning	Clean with a soft, dry cloth. Avoid liquids.
Spare parts	Replaceable ink ribbon, paper roll
Warranty	Refer to the warranty provided with the product or contact your dealer

Frequently Asked Questions - TI-5660 TEXAS INSTRUMENTS

How to install the paper roll?

Remove the printer compartment cover, lift the roll holder, place the roll on the holder, insert the paper end into the rear slot while holding down the 2 key until it comes out.

How to replace the ink ribbon?

Turn off the calculator, remove the printer cover, lift the ends of the old ribbon to remove it, install the new ribbon (red band at the bottom) until it clicks, then replace the cover.

How to set the number of decimals?

Use the DECIMAL switch to choose between F (floating), 0, 2, 3, 4 or 6 decimals. For example, position 2 gives 2 decimals.

How to clear an input error?

If you have not yet pressed an operation key, press CE. If you have already pressed an operation key, press the opposite operation key (e.g., + to cancel -).

How to use the memory function?

Press M+ to add the displayed number to memory, M- to subtract it, MS to display memory without clearing it, MT to display and clear memory.

How to set a tax rate?

Set the TAX switch to SET, enter the rate (e.g., 15), then set TAX to CALC. The rate is stored. Use TAX+ to add tax, TAX- to subtract tax.

How to print without paper?

It is not recommended to use the printer without paper. To avoid damaging the printer, set the PRINTER switch to OFF if you are not using paper.

How to calculate a profit margin?

Enter the cost, press GPM, enter the profit percentage (or loss with +/-), then press %. The selling price and the profit or loss amount are displayed.

What to do in case of error or overflow?

The calculator displays ERROR. Press C to clear the error. Memory is only cleared if the error occurred in a memory calculation.

How to change the print mode?

Use the PRINTER switch: ON to print and display, OFF to display without printing, IC to enable printer and item counter, GT to accumulate a grand total.

USER MANUAL TI-5660 TEXAS INSTRUMENTS

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 () .
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.

1. 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 (O).
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.

6. Place the ribbon around the guides and along the print drum as shown here.

1. Replace the printer compartment cover.

Key Descriptions

Advances the paper.

Cleared the entire pending operation except the memory or the grand total.

Changes the sign (+or - ) of the displayed number.

Interprets the number in the display as a percentage.

Cleared 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.

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.

Displays and prints the total and clears the total. Also resets the item counter (IC) to zero.

Displays and prints the value in memory and clears the memory. Also clears M from the display and resets the memory item counter to zero.

MS Displays and prints the current total in memory but does not clear the memory.
M Subtracts the displayed value from memory. If a multiplication or division operation is pending, M completes it and subtracts the result from memory.
M Add the displayed value to memory. If a multiplication or division operation is pending, ^± 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).
Results are rounded up (if DECIMAL = 1, 2.33 rounds to 2.4).

Entering a Tax Rate (TAX Switch)

SET Let's 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 × / T or [MT].
GT Accumulates a running grand total of all calculations you perform until you clear the grand total. To print a grand total, press [GT]. To clear the grand total, press [GT] again.

Positive entries and results are printed in black; negative entries and results are printed in red.

Clearing Errors and Overflows

Correcting Entry Errors

If you have not pressed an operation key:

• To clear an incorrect entry, press CE. 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 + , - , ± , or .

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 E and 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 E and 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 [C]. 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
C 1241 +	12.41	12.41	+
395 -	8.46	3.95	-
	002
Φ/S	8.46	8.46	◇
540 +	13.86	5.40	+
	003
*/T	13.86	13.86	*

Multiplication and Division 11.32 × (-6) ÷ 2 = -33.96
DECIMAL = F,ROUND = 5 / 4 ,TAX CALC,PRINTER = ON

Press	Display	Print
G 11.32 ×	11.32	11.32	×
6 +/- ÷	-67.92	6.	-÷
2 ÷		2.	=
	-33.96	33.96	-*

Squares 2.5^2 = 6.25

Press	Display	Print
C 2.5 × E		2.5	×
		2.5	=
	6.25	6.25	*

Reciprocals 1 / 25 = 0.04

Press	Display	Print
25	25.	÷
		25. =
		1. *
		1. =
	0.04	0.04 *

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
MT † 10.5 × 3 M±			10.5	x
			3.	=
	M	31.50	31.50	M+
4.95 × 5 M±			4.95	x
			5.	=
	M	24.75	24.75	M+

(continued)

MS ††	M	56.25	56.25	M◇
4.95 × 5 M-	†††		4.95	x
			5.	=
	M	24.75	24.75	M-
MT		31.50	31.50	M*

MT 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
C 65 (GPM)	65.	65. M
40		40. %
		43.333333333 Δ*
	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
C 35000 GPM	35,000.	35,000. M
33.3 +/- =		33.3 -%
		8,743.435859 Δ*
	26,256.56	26,256.56 *

Calculating Percentages

DECIMAL = F,ROUND = 5 / 4 TAX CALCPRINTER = ON

Percent 49 × 15%

Press	Display	Print
C 49×	49.	49.	×
15 %		15.	%
	7.35	7.35	*

Percent Ratio 29.5 is what percent of 25?

Press	Display	Print
C 29.5	29.5	29.5	+
25 %		25.	%
	118.	118.	*

Calculating Tax

DECIMAL = F,ROUND = 5 / 4 TAX SET,PRINTER = ON

Add-On 1,450 + 15% tax

Press	Display	Print
C 15, then move TAX switch to CALC	0.	15.	%
1450 TAX+		1,450.
		217.5	Δ
	1,667.5	1,667.5	*

Discount 235 - 17.5%

(Remember to move the TAX switch to SET before you begin.)

Press	Display	Print
C 17 □ 5, then move TAX switch to CALC	0.	17.5 %
235 TAX-		235.
		35.	Δ
	200.	200.	*

Using Constants

DECIMAL = F,ROUND = 5 / 4 TAX CALCPRINTER ON

Multiplying by a Constant 5 × 3 = 15 5 × 4 = 20

The first number in a multiplication problem is the constant multiplier.

Press	Display	Print
C 5 ×	5.	5.	x
3 =	15.	3.	=
		15.	*
4 =	20.	4.	=
		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
66	66.	66.	÷
3		3.	=
	22.	22.	*
90		90.	=
	30.	30.	*

Impression (bouton PRINTER)

Sumayresta 12.41 - 3.95 + 5.40 = 13.86

DECIMAL = + ,ROUND = 5 / 4 TAX CALC,PRINTER IC

Al presionar	Se muestra	Se imprime
C 1241 +	12.41	12.41	+
395 -	8.46	3.95	-
	002
◇/S	8.46	8.46	◇
540 +	13.86	5.40	+
	003
*7T	13.86	13.86	*

Multiplication y division 11.32 × (-6)÷ 2 = -33.96

DECIMAL = F,ROUND = 5 / 4 TAX CALCPRINTER ON

Al presionar	Se muestra	Se imprime
C 11.32 ×	11.32	11.32	×
6 +/- ÷	-67.92	6.	-÷
2 ÷		2.	=
	-33.96	33.96	-*

Cuadrados 2.5^2 = 6.25

Al presionar	Se muestra	Se imprime
C 2.5 × 曰		2.5	×
		2.5	=
	6.25	6.25	*

Reciproc0s 1 / 25 = 0.04

Al presionar	Se muestra	Se imprime
25	25.	÷
		25. =
		1. *
		1. =
	0.04	0.04 *

Reciproc0s 1 / 25 = 0.04

Supplemento 1,450 + 15% tax

English-Service & Warranty Information

For more information about TI products and services, contact TI by e-mail or visit the TI calculator home page on the World Wide Web.

[e-mail]

http://www.ti.com/calc

For information about the length and terms of the warranty or about product service, refer to the warranty statement enclosed with this product or contact your local Texas Instruments retailer/distributor.