Related Manuals for Radio Shack EC-3031
Summary of Contents for Radio Shack EC-3031
- Page 1 65-754.fm Page 1 Friday, August 27, 1999 1:17 PM Cat. No. 65-754 OWNER’S MANUAL Please read before using this equipment. EC-3031 Handheld Printing Calculator...
- Page 2 FEATURES Your RadioShack EC-3031 Handheld Printing Calculator is a full-featured cal- culator designed for accuracy and ease of use. The EC-3031 can perform many different types of calculations, including percentage add-ons, discounts, and much more. The print function produces a permanent record of each entry and calculation result for later reference.
- Page 3 Two-Way Paper Feed — lets you feed paper from an internal compartment or from a convenient fold-out roll holder. Two Power Sources — let you power your calculator from four AA batteries or standard AC power (with an optional AC adapter). Automatic Power Off — conserves battery power by turning off the calcula- tor about 6 minutes after the last entry.
- Page 4 • Reorient or relocate the receiving antenna. • Increase the distance between the calculator and the radio or TV. • Use outlets on different electrical circuits for the calculator and the radio or TV. Consult your local RadioShack store if...
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Page 5: Table Of Contents
Installing Batteries ... 6 Using AC Power ... 9 Installing the Paper Roll ... 12 Operation ... 16 Turning the EC-3031 On/Off ... 16 Printing ... 17 Printing a Displayed Value ... 18 Rounding ... 19 Correcting Entry Errors ... 21 Correcting Calculation Errors ... -
Page 6: Preparation
If you plan to use the print function fre- quently, we suggest you use an AC adapter. Installing Batteries You can power your calculator from four AA batteries. We recommend alkaline batteries, such as RadioShack Cat. No. 23-552. You can also use rechargeable nickel-cadmium batteries (Cat. - Page 7 65-754.fm Page 7 Friday, August 27, 1999 1:17 PM 1. Slide the battery compartment cover in the direction of the arrow and remove it. 2. Install the batteries as indicated by the polarity symbols (+ and –) marked inside the compartment. Cautions: •...
- Page 8 4. Press to turn power on, then press with a straightened RESET paper clip to clear the calculator. Replace the batteries when the printing speed slows or the display dims. Cautions: • If you do not plan to use the calcu-...
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Page 9: Using Ac Power
Using AC Power You can power the calculator from stan- dard AC power, using an AC adapter such as Cat. No. 273-1664 (not sup- plied). - Page 10 • When you finish using the AC adapter, disconnect it from the AC outlet first, then unplug it from the calculator. • Be sure to turn off the calculator before you connect or disconnect the AC adapter. Follow these steps to use AC power.
- Page 11 2. Set the adapter’s voltage switch to 3. Insert the adapter’s barrel plug into the calculator’s jack. Note: Battery power automatically disconnects when you connect an AC adapter to the calculator. 4. Plug the other end of the adapter into a standard AC outlet.
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Page 12: Installing The Paper Roll
(about one-inch diameter). 1. Press to turn on the calculator. 2. Slide open the paper roll compart- ment cover and lift it off. - Page 13 • To use the external roll holder, insert the end of the paper into the rear slot from the bottom of the calculator. Then insert the end of the paper into the slot inside the compartment. Be sure the paper feeds from...
- Page 14 65-754.fm Page 14 Friday, August 27, 1999 1:17 PM 5. Press to advance the paper. FEED 6. Install the paper roll. • Place the paper roll inside the paper roll compartment. • To use the external paper roll holder, raise the holder and slip the paper roll onto it.
- Page 15 65-754.fm Page 15 Friday, August 27, 1999 1:17 PM 7. Replace the cover, threading the paper through the slot. Replace the paper roll when you see a red strip on one edge of the paper. Use a standard 2 -inch paper roll, such as Cat.
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Page 16: Operation
65-754.fm Page 16 Friday, August 27, 1999 1:17 PM OPERATION TURNING THE EC-3031 ON/OFF Press to turn on the EC-3031. Press to turn it off. To save power, the EC-3031 automati- cally turns off if you do not use it for about 6 minutes. Press to turn it back on. -
Page 17: Printing
65-754.fm Page 17 Friday, August 27, 1999 1:17 PM PRINTING The EC-3031 can print and display all calculator entries and results, or simply display entries and results without print- ing them. You can also print a date, a reference or code number, and so on, without affecting the calculations in progress. -
Page 18: Printing A Displayed Value
To print a displayed value even when the print function is turned off, press If the display is showing a calculation result, the EC-3031 prints that number right-justified. If the display is showing your entry, the EC-3031 prints those numbers left- justified, with a to the left. -
Page 19: Rounding
, the display chang- es from Select to display a floating decimal point. The calculator uses the full 10- digit display to show your calculation re- sults. Select to round final calculation re- sults to two decimal places. If the third number to the right of the decimal is 5 or greater, the final calculation rounds up. - Page 20 65-754.fm Page 20 Friday, August 27, 1999 1:17 PM down. The entries and intermediate results appear with floating decimal points. Select to limit final calculation re- sults to two decimal places with no rounding. The entries and intermediate results appear with floating decimal points.
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Page 21: Correcting Entry Errors
65-754.fm Page 21 Friday, August 27, 1999 1:17 PM CORRECTING ENTRY ERRORS If you enter an incorrect value, press once. Then enter the correct value and proceed with your calculation. If you press an incorrect function key (+, –, ), simply press the correct key and continue. -
Page 22: Correcting Calculation Errors
65-754.fm Page 22 Friday, August 27, 1999 1:17 PM CORRECTING CALCULATION ERRORS (error) appears at the upper left of the display when: • A calculation result exceeds 10 dig- its (this is an overflow error see “Estimating Calculation Results”). • A memory calculation exceeds 10 digits (the memory contents remain unchanged). -
Page 23: Calculation Examples
65-754.fm Page 23 Friday, August 27, 1999 1:17 PM 3. Add to the right of the number as many zeros as there were digits to the left of the decimal point. For example, the displayed value E1.014206404 estimated equal 10,142,064,040 (one zero added). -
Page 24: Constant Calculations
65-754.fm Page 24 Friday, August 27, 1999 1:17 PM Constant Calculations Press the function key ( , , –, +) twice to make the following value a constant. Note: A appears on the display when you use a constant. - Page 25 65-754.fm Page 25 Friday, August 27, 1999 1:17 PM...
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Page 26: Memory Calculations
To subtract a value from the current memory value, enter the number or cal- culation you want to subtract, then M – press . The calculator totals the cur- rent calculation and subtracts that value from memory. - Page 27 65-754.fm Page 27 Friday, August 27, 1999 1:17 PM To recall the value from memory, press Note: An appears on the display when the memory function is used.
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Page 28: Percentage Calculations
65-754.fm Page 28 Friday, August 27, 1999 1:17 PM Percentage Calculations 12% of 1500 What percentage of 880 is 660? - Page 29 65-754.fm Page 29 Friday, August 27, 1999 1:17 PM 15% add-on to 2500 25% decrease of 3500 If you made $80 last week and $100 this week, what is the percent increase?
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Page 30: Markup Calculations
65-754.fm Page 30 Friday, August 27, 1999 1:17 PM Markup Calculations What will the selling price and profit be when the purchasing price of an item is $480 and the gross profit margin is 25%? -
Page 31: Care
65-754.fm Page 31 Friday, August 27, 1999 1:17 PM CARE Your RadioShack EC-3031 Handheld Printing Calculator is an example of su- perior design and craftsmanship. The following suggestions will help you care for the calculator so you can enjoy it for years. -
Page 32: Replacing The Ink Roller
FCC authoriza- tion to operate it. If your calculator is not performing as it should, take it to your local RadioShack store for assistance. REPLACING THE INK... - Page 33 65-754.fm Page 33 Friday, August 27, 1999 1:17 PM 2. Raise the paper roll holder, if nec- essary. 3. Remove the ink roller by lifting it where you see PULL UP . 4. Install the new ink roller cartridge. 5. Lower the paper roll holder, if nec- essary.
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Page 34: Resetting The Calculator
65-754.fm Page 34 Friday, August 27, 1999 1:17 PM 6. Replace the cover. RESETTING THE CALCULATOR If your EC-3031 locks up, you reset it, as shown in “Installing Batteries” on Page 6. Note: The reset procedure clears all calculations and memory values. -
Page 35: Specifications
65-754.fm Page 35 Friday, August 27, 1999 1:17 PM SPECIFICATIONS Ambient Temperature Range: 32–104°F (0–40°C) Battery Life ... About 4,000 lines of printing Power ... 4 AA batteries (1.5 V) Optional AC Adapter (Cat. No. 273–1664) Dimensions (HWD including roll holder): Inches 192 mm) Weight (including batteries) ... - Page 36 65-754.fm Page 36 Friday, August 27, 1999 1:17 PM NOTES...
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- Page 39 65-754.fm Page 39 Friday, August 27, 1999 1:17 PM Limited One-Year Warranty This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for one (1) year from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and deal- ers.
- Page 40 65-754.fm Page 40 Friday, August 27, 1999 1:17 PM ( continued ) In the event of a product defect during the warranty period, take the product and the RadioShack sales receipt as proof of purchase date to any Ra- dioShack store. RadioShack will, at its option, un- less otherwise provided by law: (a) correct the defect by product repair without charge for parts and labor;...