Radio Shack EC-3031 User Manual

Cat. No. 65-754
OWNER’S MANUAL
Please read before
using this equipment.
EC-3031
Handheld Printing
Calculator
65-754.fm Page 1 Friday, August 27, 1999 1:17 PM

Radio Shack EC-3031 Specifications

General

Display Type	LCD
Power Source	Battery
Memory	1 memory register
Functions	Basic arithmetic
Display	8-digit LCD

Summary

FEATURES

PREPARATION

Installing Batteries

Instructions for inserting AA batteries correctly.

Using AC Power

Connect and use the AC adapter for power.

INSTALLING THE PAPER ROLL

ROUNDING

Rounding Options

Select decimal display and rounding modes (F, 5/4, CUT).

CORRECTING ENTRY ERRORS

Entry Error Correction

Use 'C' key for incorrect values or function keys.

CORRECTING CALCULATION ERRORS

Error Indication (E)

Understand 'E' display for overflow or division by zero.

CALCULATION EXAMPLES

Memory Calculations

Percentage Calculations

Calculate percentages, add-ons, and decreases.

Markup Calculations

RESETTING THE CALCULATOR