Casio HR-10RC Mini Desktop Printing Calculator Instruction Manual

Introduction

This manual provides comprehensive instructions for the operation and maintenance of your Casio HR-10RC Mini Desktop Printing Calculator. Designed for portability and efficiency, this 12-digit display calculator with a one-color printer is ideal for various financial tasks, including taxes, bookkeeping, and general accounting.

Package Contents

Verify that all items are present in the package:

• Casio HR-10RC Printing Calculator (Dimensions: 9.41 x 4.02 x 3.21 inches)
• AC Adapter (included)
• Paper Roll (pre-installed or included)
• Paper Roll Holder

Front view of the Casio HR-10RC calculator packaging, highlighting its portable design and key features.

Rear view of the Casio HR-10RC calculator packaging, detailing main features such as reprint function, check function, tax calculations, currency exchange, and cost/sell/margin calculations.

Setup

1. Power Source

The Casio HR-10RC can be powered by either the included AC adapter or four (4) AA batteries (not included).

• AC Adapter: Connect the AC adapter to the DC-IN port on the calculator and plug it into a standard wall outlet.
• Battery Installation: Open the battery compartment cover on the underside of the calculator. Insert four (4) AA batteries, ensuring correct polarity (+/-). Close the cover securely.

Side view of the Casio HR-10RC calculator, showing the power input port and compact design.

Play video

A 360-degree view of the Casio HR-10RC Mini Desktop Printing Calculator, showcasing its design from all angles.

2. Paper Roll Installation

To install a new paper roll:

1. Lift the printer cover.
2. Place the paper roll onto the paper roll holder, ensuring the paper feeds from the bottom.
3. Insert the end of the paper into the paper feed slot until it emerges from the top.
4. Press the FEED button to advance the paper.
5. Close the printer cover.

Key Features

• Compact & Portable: Mini desktop size with rubberized keys for comfortable input.
• Large 12-Digit LCD Display: Easy-to-read screen for quick and accurate calculations.
• One-Color Printing with Date & Time: Prints in crisp black and automatically includes date and time for recordkeeping.
• Tax & Business Functions: Includes cost/sell/margin, tax calculation, and currency exchange functions.
• Check, Correct & Re-Print: Review and correct up to 150 steps before printing; use re-print and after-print functions for efficient documentation.

Angled view of the Casio HR-10RC printing calculator, showing the 12-digit display and a printed paper roll.

Frontal view of the Casio HR-10RC printing calculator, displaying the large 12-digit screen and paper output.

Operating Instructions

Basic Calculations

Perform standard arithmetic operations using the numeric keypad and function keys (+, -, x, ÷).

• Enter numbers using the numeric keys (0-9, 00).
• Press the desired operation key.
• Press = for the result.
• Use C to clear the last entry and AC to clear all entries.

Overhead view of the Casio HR-10RC calculator in use on a wooden desk, alongside a laptop and other office supplies, demonstrating its integration into a workspace.

Printing Function

The calculator automatically prints calculations when the printer is enabled.

• ON/OFF PRT: Toggle the printer function on or off. When on, calculations are printed.
• REPRINT: Press this button to reprint the last calculation or a series of calculations.
• CHECK: Use the ▲ and ▼ keys to scroll through up to 150 steps of past calculations.

Tax and Business Functions

Utilize dedicated keys for specialized financial calculations:

• TAX+ / TAX-: Add or subtract tax from a value.
• COST / SELL / MAR: Perform cost, selling price, and margin calculations.
• M/EX: Currency exchange function.

Maintenance

To ensure optimal performance and longevity of your calculator:

• Clean the exterior with a soft, dry cloth. Avoid abrasive cleaners or solvents.
• Keep the printer mechanism free from dust and debris.
• Store the calculator in a cool, dry place when not in use.
• Replace batteries promptly when the display dims or printing becomes faint.

Troubleshooting

Common Issues and Solutions

• Display is blank or dim: Check battery installation or connect the AC adapter. Replace batteries if necessary.
• Printer not working: Ensure the paper roll is correctly installed and the ON/OFF PRT switch is in the ON position. Check for paper jams.
• Incorrect calculations: Verify input values and ensure correct function keys are used. Utilize the CHECK and CORRECT functions to review steps.

Specifications

Warranty and Support

For detailed warranty information and customer support, please refer to the official Casio website or the user guide provided with your product.

Official User Guide (PDF): Download User Guide

Casio Official Website: world.casio.com

Important Safety Information

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.