Въведение
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.
Продуктът е свършилview
Ключови характеристики
- 14-цифрен дисплей: Large LCD for clear readability.
- Тежкотоварен дизайн: Built for durability and frequent use.
- Високоскоростен печат: Prints at approximately 4.4 lines per second.
- Двуцветен печат: 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:

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

Фигура 2: Едър план view highlighting the LCD display and the paper output slot of the Casio DR-240R.
Настройка
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.
- Намерете капака на отделението за батерии от долната страна на калкулатора.
- Плъзнете капака, за да го отворите.
- Поставете две батерии AAA, като внимавате за правилната полярност (+/-).
- Сменете капака на отделението за батерията.
Инсталиране на ролка хартия
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.
- Подайте водещия ръб на хартията в слота на принтера, докато излезе отгоре.
- Затворете капака на принтера.
- Use the FEED button to advance the paper if necessary.
Инструкция за работа
Основни изчисления
Извършвайте стандартни аритметични операции:
- Добавка (+): Enter first number, press +, enter second number, press =.
- Изваждане (-): Enter first number, press -, enter second number, press =.
- Multiplication (*): Enter first number, press *, enter second number, press =.
- Разделяне (/): Enter first number, press /, enter second number, press =.
- Clear All (CA): Clears all entries and memory.
- Clear Entry (C): Clears the last entered number.
Данъчни изчисления
To set a tax rate and perform tax calculations:
- За да зададете данъчната ставка: Натиснете НАБОР, enter the tax rate percentage, след което натиснете ДАНЪК+.
- To add tax: Enter the amount, then press ДАНЪК+.
- To subtract tax: Enter the amount, then press ДАНЪК-.
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 ЦЕНА, enter Margin percentagд, натиснете MAR, след това натиснете ПРОДАВАМ.
- To calculate Cost: Enter Selling Price, press ПРОДАВАМ, enter Margin percentagд, натиснете MAR, след това натиснете ЦЕНА.
- To calculate Margin: Enter Cost, press ЦЕНА, enter Selling Price, press ПРОДАВАМ, след това натиснете MAR.
Функции за печат
- OFF ON PRINT Selector: Use this switch to select print mode (ON), non-print mode (OFF), or item count mode (ITEM).
- ХРАНЕНЕ: 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.
Поддръжка
Cleaning the Calculator
To maintain the appearance and functionality of your calculator:
- Избършете външната страна с мека, суха кърпа.
- За упорити замърсявания, dampen the cloth slightly with water and a mild detergent, then wipe dry.
- Не използвайте силни разтворители или абразивни почистващи препарати.
- Избягвайте пръскането на течности директно върху калкулатора.
Смяна на хартиената ролка
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.
Отстраняване на неизправности
If you encounter issues with your Casio DR-240R, refer to the following common problems and solutions:
| проблем | Възможна причина | Решение |
|---|---|---|
| Calculator does not power on. | 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. |
| Неправилни резултати от изчисленията. | 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. |
Спецификации
Detailed specifications for the Casio DR-240R printing calculator:
| Характеристика | детайл |
|---|---|
| Марка | Casio |
| Име на модела | DR-240R |
| Тип калкулатор | Калкулатор за печат |
| Тип дисплей | LCD |
| Брой цифри | 14 |
| Скорост на печат | 4.4 реда/секунда |
| Печат на цветове | Two-color (Black for positive, Red for negative) |
| Източник на захранване | AC Power (Battery backup for memory: 2 AAA batteries) |
| Материал | Пластмаса |
| Цвят | Бяло |
| Размери на продукта (Д x Ш) | 13.5 см х 22 см |
| Тегло на артикула | 1.5 кг |

Figure 3: Image illustrating the approximate dimensions of the Casio DR-240R calculator.
Гаранция и поддръжка
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Casio webсайт. Запазете касовата си бележка като доказателство за покупка при евентуални гаранционни рекламации.
For further assistance, you may contact Casio customer service through their official channels.