Radio Shack EC-3031 User Manuals

Table of 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
• 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