Introduction
This manual provides essential instructions for the proper setup, operation, and maintenance of your Casio DR210TM Two-Color Desktop Printing Calculator. Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.
Setup
1. Unpacking and Inspection
Carefully remove the calculator from its packaging. Inspect the unit for any signs of damage. If any damage is found, contact your retailer immediately.
2. Power Source Installation
The Casio DR210TM calculator is battery-powered. Locate the battery compartment, typically on the underside of the unit. Insert the required batteries, ensuring correct polarity (+/-) as indicated inside the compartment. Close the battery compartment securely.
3. Paper Roll Installation
- Open the paper roll cover, usually located at the rear or top of the calculator.
- Place a new paper roll into the compartment, ensuring the paper feeds from the bottom of the roll.
- Feed the leading edge of the paper into the printer mechanism slot until it emerges from the top.
- Close the paper roll cover.
Image: The Casio DR210TM Two-Color Desktop Printing Calculator, showing its large LCD display and printing mechanism.
Operating Instructions
1. Power On/Off
Press the [ON/OFF] button to turn the calculator on or off. The large LCD display will illuminate upon power-on.
2. Basic Calculations
- Addition: Enter the first number, press [+], enter the second number, press [=].
- Subtraction: Enter the first number, press [-], enter the second number, press [=].
- Multiplication: Enter the first number, press [x], enter the second number, press [=].
- Division: Enter the first number, press [/], enter the second number, press [=].
3. Printing Function
The DR210TM features two-color printing (black and red) at approximately 4.4 lines per second. Ensure a paper roll is installed correctly. The print mode can typically be selected using a dedicated switch or button, often labeled [PRINT] or [P/NP] (Print/Non-Print). When in print mode, all calculations will be recorded on the paper roll.
4. Special Functions (Financial Calculator Type)
As a financial calculator type, the DR210TM may include functions such as tax calculations, cost/sell/margin calculations, and memory functions. Refer to the specific key labels on your calculator for these advanced operations. Common keys include [TAX+], [TAX-], [M+], [M-], [MR], and [GT] (Grand Total).
Maintenance
1. Cleaning
To clean the calculator, use a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water and a mild detergent, then wipe dry immediately. Do not use abrasive cleaners, solvents, or spray directly onto the unit.
2. Paper Roll Replacement
When the paper roll runs out or the print becomes faint, replace it following the steps outlined in the 'Paper Roll Installation' section under Setup.
3. Battery Replacement
If the display becomes dim or the calculator functions erratically, it may be time to replace the batteries. Follow the 'Power Source Installation' steps under Setup to replace the batteries.
Troubleshooting
- Calculator does not power on: Check if batteries are inserted correctly and are not depleted. Ensure the [ON/OFF] button has been pressed.
- No print or faint print: Verify that a paper roll is installed and fed correctly. Check if the paper roll is depleted. Ensure the calculator is in print mode. The ink ribbon may need replacement if print quality is consistently poor.
- Incorrect calculation results: Ensure correct input of numbers and operations. Clear previous calculations using the [C] or [AC] button before starting a new calculation.
- Display is blank or shows errors: Try turning the calculator off and on again. If the issue persists, replace the batteries.
Specifications
- Brand: Casio
- Model Number: DR210TM
- Display Type: LCD
- Print Speed: Approximately 4.4 lines/second
- Print Color: Two-color (Black/Red)
- Power Source: Battery Powered
- Enclosure Material: Plastic
- Calculator Type: Financial
Warranty and Support
For detailed warranty information and customer support, please refer to the warranty card included with your product or visit the official Casio website. Keep your purchase receipt as proof of purchase for warranty claims.