Casio DF-120FM User's Guide

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Casio DF-120FM Calculator Specification

The Casio DF-120FM is a sophisticated desktop calculator designed to meet the needs of both business and personal users who require reliable and efficient computational capabilities. It features a large 12-digit display, providing clear and easy-to-read numbers that enhance user experience by minimizing errors during data entry. The calculator is equipped with dual power sources, utilizing both solar energy and a replaceable battery, ensuring continuous operation even in low-light conditions.

The Casio DF-120FM offers a comprehensive suite of functions that include basic arithmetic operations, percentage calculations, and tax calculations, making it a versatile tool for everyday use. Additionally, it includes a mark-up function that simplifies cost and profit margin calculations, a useful feature for retail and business operations. The calculator is designed with a robust build quality, featuring durable plastic keys that are responsive and comfortable to use, reducing the risk of wear and tear over prolonged periods.

One of the standout features is the ability to perform multi-step calculations and review previous entries, which aids in identifying and correcting errors without the need to start over. The calculator's memory function allows users to store and recall important numbers and results, enhancing productivity by streamlining repetitive tasks. Moreover, its compact and ergonomic design makes it suitable for use in various settings, from office desks to home counters, without occupying excessive space. Overall, the Casio DF-120FM is a reliable and efficient calculator that combines practicality with advanced features, catering to a broad range of computational needs.

Casio DF-120FM Calculator F.A.Q.

How do I reset the Casio DF-120FM calculator?

To reset the Casio DF-120FM calculator, press and hold the 'AC' button for a couple of seconds until the display clears. This will reset any current calculations and settings.

What should I do if the calculator is not turning on?

If the Casio DF-120FM calculator is not turning on, check the battery compartment to ensure the batteries are properly installed and have charge. Replace the batteries if necessary.

How can I clean the display of the calculator?

To clean the display of the Casio DF-120FM, use a soft, dry cloth. Avoid using any liquid cleaners or abrasive materials that might scratch the screen.

Can I perform percentage calculations on the Casio DF-120FM?

Yes, you can perform percentage calculations on the Casio DF-120FM by entering the number, pressing the '%' key, and then the operation you wish to perform (e.g., addition, subtraction).

What is the correct way to replace the batteries in the calculator?

To replace the batteries in the Casio DF-120FM, open the battery compartment on the back, remove the old batteries, and insert new ones ensuring the correct polarity. Close the compartment securely.

How do I adjust the decimal settings on the DF-120FM?

To adjust the decimal settings, use the 'F', 'CUT', 'UP', and '5/4' switches on the calculator. These allow you to set the number of decimal places and rounding settings.

Why is the display showing incorrect calculations?

If the display shows incorrect calculations, verify that the calculator is set to the correct mode and that all buttons are functioning properly. A reset might also help resolve any issues.

Is there a way to calculate tax on this calculator?

Yes, the Casio DF-120FM has a tax calculation feature. Use the 'TAX+' and 'TAX-' buttons to add or subtract tax from a given value based on the preset tax rate.

How can I change the tax rate on the calculator?

To change the tax rate, turn the calculator off, press and hold the 'TAX+' button, turn the calculator on, and then enter the new tax rate. Release the 'TAX+' button once the rate is set.

What can I do if the keys are not responding properly?

If the keys on the Casio DF-120FM are not responding properly, try removing any debris under the keys using compressed air. If the problem persists, consider a reset or professional servicing.