Casio DS-1JT Heavy-Duty Desktop Calculator User Manual

1. Introduzione

This manual provides essential instructions for the proper use and maintenance of your Casio DS-1JT heavy-duty desktop calculator. Designed for durability and efficiency, this calculator features a 300-step check function, tax calculation capabilities, and a robust design suitable for demanding environments. Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.

2. Produttu Finituview

The Casio DS-1JT is a heavy-duty desktop calculator featuring a classic design and a dark gray plastic case that enhances its durability. It is equipped with a large LCD display and fade-resistant keys for reliable long-term use.

Fronte view of the Casio DS-1JT heavy-duty desktop calculator, showing its large LCD display and key layout.

3. Setup

3.1 Power Source

The Casio DS-1JT calculator operates on dual power: solar and battery. It comes with one battery pre-installed. The solar panel provides power in well-lit environments, while the battery ensures continuous operation in low-light conditions.

3.2 Usu iniziale

Upon first use, ensure the calculator is exposed to sufficient light for the solar panel to activate, or press the AC/ON button to power it on. No additional setup is typically required for basic operation.

4. Operating Instructions

4.1 Calculi di basa

• Addizzioni (+): Enter the first number, press '+', enter the second number, press '='.
• sottrazione (-) : Enter the first number, press '-', enter the second number, press '='.
• Moltiplicazione (×): Enter the first number, press '×', enter the second number, press '='.
• Divisione (÷): Enter the first number, press '÷', enter the second number, press '='.

4.2 Check and Correct Function (300 Steps)

Sta funzione vi permette di review and correct up to 300 calculation steps. This is particularly useful for preventing errors in long calculations.

• RECHECK: Pulsà stu buttone per review previous calculation steps.
• BACK/FORWARD: Use these buttons to navigate through the recorded steps.
• CORRECT: If an error is found, navigate to the incorrect step and enter the correct value. The calculator will automatically adjust subsequent calculations.

4.3 Calculu di l'imposta

The calculator comes with a pre-adjusted 5% tax rate. You can perform direct calculations for prices including or excluding tax.

• TAX+: Adds the pre-set tax rate to the displayed value.
• TAX-: Subtracts the pre-set tax rate from the displayed value.

4.4 Funzioni di memoria

• M+: Aghjusta u valore visualizatu à a memoria.
• M-: Sottrae u valore visualizatu da a memoria.
• MRC: Recalls the memory content (press once) or clears the memory (press twice).

4.5 Altre funzioni

• GT (Grand Total): Displays the grand total of all calculations performed since the last GT clear.
• MU (Mark-Up): Calculates mark-up and mark-down percentages.
• % (Percenttage): Adupratu per percentualitage calculi.
• √ (radice quadrata): Calcula a radica quadrata di u numeru affissatu.
• Rollover di 3 tasti: Ensures that keystrokes are not lost during high-speed input, improving accuracy.
• Silent Touch Keys: Designed for quiet operation, reducing noise during use.
• Function Command Signs: Indicators on the display show the current operation being performed.

5. Mantenimentu

5.1 Pulizia

To clean the calculator, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the display or internal components.

5.2 Sustituzione di batterie

When the display becomes dim or unresponsive in low light, it may be time to replace the battery. Refer to the battery compartment on the back of the calculator for instructions on how to open it and replace the battery. Ensure the calculator is powered off before replacing the battery.

5.3 Storage

Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures. The anti-slip structure helps keep it stable on your desk.

6. Risoluzione di prublemi

6.1 Problemi di visualizazione

• Dim Display: Ensure the calculator is in a well-lit area for solar power, or replace the battery if necessary.
• No Display: Press the AC/ON button. If still no display, check battery installation or replace the battery.

6.2 Calculation Errors

• Risultati sbagliati: Utilize the 300-step check and correct function (RECHECK, BACK, FORWARD, CORRECT buttons) to review your input and make corrections.
• Cumportamentu inaspettatu: Clear all calculations and memory by pressing AC/ON. If the issue persists, remove and reinsert the battery.

7. Specificazioni

8. Garanzia è Support

For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Casio websitu. Conservate a vostra prova d'acquistu per qualsiasi reclamazione di garanzia.