Radio Shack EC-3031 owner manual Replacing the INK Roller

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65-754.fm Page 32 Friday, August 27, 1999 1:17 PM

Modifying or tampering with the calcula- tor’s internal components can cause a malfunction and might invalidate its warranty and void your 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

ROLLER

The printer uses a disposable ink roller cartridge. When the print gets too light, replace the ink roller cartridge. You can order replacement ink cartridges from your local RadioShack store.

Caution: Never try to reuse the ink roll- er by adding a solvent or liquid ink to it. This could damage the printer.

1.Slide open the paper roll compart- ment cover and lift it off.

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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 Operation Turning the EC-3031 ON/OFFPrinting Printing a Displayed Value Rounding Fm Page 20 Friday, August 27, 1999 117 PM Correcting Entry Errors Correcting Calculation Errors Estimating Calculation ResultsCalculation Examples Basic CalculationsConstant 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