Inleiding
This manual provides detailed instructions for the proper use and maintenance of your Casio DR-240R printing calculator. Designed for heavy-duty use, this 14-digit calculator offers advanced functions for business calculations, including tax, cost, sell, and margin calculations, along with two-color printing for clear record-keeping. Please read this manual thoroughly before operating the calculator to ensure optimal performance and longevity.
Produk verbyview
Sleutel kenmerke
- Driesyfer-skerm: Large LCD for clear readability.
- Swaardiensontwerp: Built for durability and frequent use.
- Hoëspoed drukwerk: Prints at approximately 4.4 lines per second.
- Tweekleur druk: Positive values print in black, negative values print in red for easy identification.
- Business Functions: Dedicated keys for Tax+, Tax-, Cost, Sell, Margin, and Discount calculations.
- Item Counter: Tracks the number of items calculated.
- Re-print Function: Allows printing of calculation records even in print-off mode.
Calculator Components
Familiarize yourself with the main components of your DR-240R calculator:

Figuur 1: Voorkant view of the Casio DR-240R printing calculator, showing the display, keypad, and paper roll compartment.

Figuur 2: Close-up view highlighting the LCD display and the paper output slot of the Casio DR-240R.
Opstelling
Power Source and Battery Installation
The Casio DR-240R operates on AC power and requires 2 AAA batteries for memory backup. Ensure the calculator is connected to a power outlet for primary operation.
- Locate the battery compartment cover on the underside of the calculator.
- Skuif die deksel om dit oop te maak.
- Plaas twee AAA-batterye in en maak seker dat die polariteit (+/-) korrek is.
- Plaas die deksel van die batterykompartement terug.
Installasie van papierrol
To enable printing, a paper roll must be correctly installed.
- Open the printer cover by lifting it gently.
- Place a new paper roll into the paper roll holder, ensuring the paper feeds from the bottom of the roll.
- Voer die voorste rand van die papier in die drukkergleuf totdat dit bo uitkom.
- Maak die drukkerdeksel toe.
- Use the FEED button to advance the paper if necessary.
Bedryfsinstruksies
Basiese Berekeninge
Perform standard arithmetic operations:
- Byvoeging (+): Voer die eerste nommer in, druk +, voer die tweede nommer in, druk =.
- Aftrekking (-): Voer die eerste nommer in, druk -, voer die tweede nommer in, druk =.
- Vermenigvuldiging (*): Voer die eerste nommer in, druk *, voer die tweede nommer in, druk =.
- Afdeling (/): Voer die eerste nommer in, druk /, voer die tweede nommer in, druk =.
- Clear All (CA): Clears all entries and memory.
- Clear Entry (C): Vee die laaste ingevoerde nommer uit.
Belastingberekeninge
To set a tax rate and perform tax calculations:
- To set the tax rate: Press STEL, enter the tax rate percentage, druk dan BELASTING+.
- To add tax: Enter the amount, then press BELASTING+.
- To subtract tax: Enter the amount, then press BELASTING-.
Cost, Sell, and Margin Calculations
The calculator can determine any of these three values if the other two are known.
- To calculate Selling Price: Enter Cost, press KOSTE, enter Margin percentage, druk MAR, druk dan VERKOOP.
- To calculate Cost: Enter Selling Price, press VERKOOP, enter Margin percentage, druk MAR, druk dan KOSTE.
- To calculate Margin: Enter Cost, press KOSTE, enter Selling Price, press VERKOOP, druk dan MAR.
Printing Functions
- OFF ON PRINT Selector: Use this switch to select print mode (ON), non-print mode (OFF), or item count mode (ITEM).
- VOER: Advances the paper roll.
- REPRINT: Prints a copy of the last calculation record. This function works even if the calculator is in print-off mode.
Onderhoud
Skoonmaak van die sakrekenaar
To maintain the appearance and functionality of your calculator:
- Vee die buitekant af met 'n sagte, droë lap.
- Vir hardnekkige vuiligheid, dampMaak die lap liggies skoon met water en 'n sagte skoonmaakmiddel en vee dit dan droog.
- Moenie sterk oplosmiddels of skuurmiddels gebruik nie.
- Avoid spraying liquids directly onto the calculator.
Die vervanging van die papierrol
When the paper roll runs out or the print becomes faint, replace the paper roll as described in the "Paper Roll Installation" section under Setup.
Probleemoplossing
If you encounter issues with your Casio DR-240R, refer to the following common problems and solutions:
| Probleem | Moontlike oorsaak | Oplossing |
|---|---|---|
| Sakrekenaar skakel nie aan nie. | Not connected to AC power; power outlet issue. | Ensure AC adapter is securely plugged in. Test the power outlet with another device. |
| Printer is not printing. | Paper roll empty or incorrectly installed; print mode is OFF. | Check and replace paper roll if necessary. Ensure the OFF ON PRINT switch is set to ON. |
| Print is faint or unclear. | Ink roller needs replacement; low quality paper. | Replace the ink roller. Use recommended paper rolls. |
| Verkeerde berekeningsresultate. | Incorrect input; tax/margin rate not set correctly. | Double-check all input values. Verify the set tax or margin rates. Perform a CA (Clear All) operation and re-enter. |
Spesifikasies
Detailed specifications for the Casio DR-240R printing calculator:
| Kenmerk | Detail |
|---|---|
| Handelsmerk | Casio |
| Model Naam | DR-240R |
| Sakrekenaar tipe | Druk sakrekenaar |
| Tipe vertoon | LCD |
| Aantal syfers | 14 |
| Drukspoed | 4.4 XNUMX reëls/sekonde |
| Drukkleure | Two-color (Black for positive, Red for negative) |
| Kragbron | AC Power (Battery backup for memory: 2 AAA batteries) |
| Materiaal | Plastiek |
| Kleur | Wit |
| Produk Afmetings (L x B) | 13.5 cm x 22 cm |
| Item gewig | 1.5 kg |

Figure 3: Image illustrating the approximate dimensions of the Casio DR-240R calculator.
Waarborg en Ondersteuning
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Casio webwebwerf. Bewaar u aankoopbewys as bewys van aankoop vir enige waarborgeise.
For further assistance, you may contact Casio customer service through their official channels.