Radio Shack EC-3031 owner manual Contents

Page 5

65-754.fm Page 5 Friday, August 27, 1999 1:17 PM

CONTENTS

 

Preparation

6

Choosing a Power Source

6

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

22

Estimating Calculation Results ....

22

Calculation Examples

23

Basic Calculations

23

Constant Calculations

24

Memory Calculations

26

Percentage Calculations

28

Markup Calculations

30

Care

31

Replacing the Ink Roller

32

Resetting the Calculator

34

Specifications

35

5

Image 5
Contents EC-3031 Features Fm Page 3 Friday, August 27, 1999 117 PM FCC Wants YOU to Know Contents Preparation Choosing a Power SourceInstalling Batteries Fm Page 7 Friday, August 27, 1999 117 PM Fm Page 8 Friday, August 27, 1999 117 PM Using AC Power Fm Page 10 Friday, August 27, 1999 117 PM Fm Page 11 Friday, August 27, 1999 117 PM Installing the Paper Roll Fm Page 13 Friday, August 27, 1999 117 PM Fm Page 14 Friday, August 27, 1999 117 PM Fm Page 15 Friday, August 27, 1999 117 PM Turning the EC-3031 ON/OFF OperationPrinting Printing a Displayed Value Rounding Fm Page 20 Friday, August 27, 1999 117 PM Correcting Entry Errors Estimating Calculation Results Correcting Calculation ErrorsBasic Calculations Calculation ExamplesConstant Calculations Fm Page 25 Friday, August 27, 1999 117 PM Memory Calculations To recall the value from memory, press MR Percentage Calculations 15% add-on to 25% decrease Markup Calculations Care Replacing the INK Roller Fm Page 33 Friday, August 27, 1999 117 PM Resetting Calculator Specifications Fm Page 36 Friday, August 27, 1999 117 PM Fm Page 37 Friday, August 27, 1999 117 PM Fm Page 38 Friday, August 27, 1999 117 PM Limited One-Year Warranty RadioShack Division Tandy Corporation Fort Worth, Texas