Manual Pengguna Kalkulator Casio HR-8RC-BK dan MJ-120GST

1. Pengenalan

This manual provides detailed instructions for the Casio HR-8RC-BK Printing Calculator and the Casio MJ-120GST GST Calculator. These devices are designed to assist with various calculations, from basic arithmetic to complex financial and tax-related computations. Please read this manual thoroughly to ensure proper use and to maximize the functionality of your calculators.

Image 1: The Casio HR-8RC-BK Printing Calculator (left) and the Casio MJ-120GST GST Calculator (right).

2. Persediaan

2.1 Casio HR-8RC-BK Printing Calculator

Before using your HR-8RC-BK calculator, you will need to install batteries and load the paper roll.

2.1.1 Pemasangan Bateri

1. Pastikan kalkulator dimatikan.
2. Locate the battery compartment cover on the underside of the calculator.
3. Luncurkan penutup terbuka.
4. Insert the required batteries (e.g., AA batteries, refer to the battery compartment for specific type) according to the polarity indicators (+/-).
5. Tutup penutup petak bateri dengan selamat.

2.1.2 Pemuatan Gulungan Kertas

1. Buka penutup gulungan kertas.
2. Letakkan gulungan kertas baharu ke dalam petak, pastikan kertas disuap dari bawah.
3. Pull a small amount of paper out and feed it through the printer slot.
4. Close the paper roll cover, ensuring the paper is properly aligned.

Image 2: The Casio HR-8RC-BK Printing Calculator showing the paper roll output.

2.2 Casio MJ-120GST GST Calculator

The MJ-120GST calculator is solar and battery powered. For optimal performance, ensure it is used in a well-lit environment or has sufficient battery power.

2.2.1 Pemeriksaan Bateri

If the display becomes dim or unresponsive in low light, the battery may need replacement. Refer to the battery compartment on the underside for the specific battery type (e.g., button cell battery) and replacement instructions.

Image 3: The Casio MJ-120GST GST Calculator, highlighting its large display and key layout.

3. Arahan Operasi

3.1 Casio HR-8RC-BK Printing Calculator

This calculator features a 12-digit display and various functions for business and general calculations.

3.1.1 Pengiraan Asas

• Addition (+), Subtraction (-), Multiplication (×), Division (÷): Enter the first number, press the operator key, enter the second number, then press the equals (=) key.
• AC (Semua Jelas): Clears all entries and calculations.
• C (Clear Entry): Clears the last entered number.

3.1.2 Reprint/After Print Feature

This feature allows you to print multiple copies of the calculation history or print the history later even if the print mode was initially off. Use the "REPRINT" or "AFTER PRINT" button to activate this function.

3.1.3 Pengiraan Kos/Jual/Margin

The calculator can determine the cost, selling price, or profit margin of an item when the other two values are known. Use the "COST", "SELL", and "MARGIN" keys for these calculations.

3.1.4 150 Steps Check & Correct

Review and correct up to 150 steps of your calculations. Use the "CHECK" and "CORRECT" buttons, along with the arrow keys (BACK/FORWARD), to navigate through the calculation history and make corrections.

3.1.5 Print Mode (ON/OFF)

Toggle the print function on or off using the "PRINT ON/OFF" switch. When "ON", calculations will be printed on the paper roll. When "OFF", calculations will only appear on the display.

Image 4: Key features of the Casio HR-8RC-BK, including Profit Margin Percent, Large Display, 150 Steps Check, Tax Calculation & Exchange, Key Rollover, and 12 Digits.

3.2 Casio MJ-120GST GST Calculator

The MJ-120GST is specifically designed for Goods and Services Tax (GST) calculations, featuring a 12-digit extra-large display.

3.2.1 Pengiraan Asas

• Addition (+), Subtraction (-), Multiplication (×), Division (÷): Operasi aritmetik piawai.
• AC (Semua Jelas): Clears all entries.
• C (Clear Entry): Clears the last entered number.
• +/- Key: Menukar tanda nombor yang dipaparkan.
• Square Root Key (√): Mengira punca kuasa dua nombor yang dipaparkan.

3.2.2 GST Calculations

This calculator simplifies GST calculations with dedicated keys.

• Dedicated GST Slab Keys (GST+0, GST+1, GST+2, GST+3, GST+4): These five independent keys are pre-stored with common GST rates (0%, 5%, 12%, 18%, 28%). You can change these rates as per industry requirements.
  • To add GST: Enter the base amount, then press the relevant GST+ key.
  • To subtract GST (Price Less GST): Enter the gross amount, then press the relevant GST- key (usually accessed by pressing TAX- or a shift function with GST+).
• GST GT Key: Calculates the grand total of net, gross, and GST amounts across multiple calculations.
• TAX+/- Key: Used for general tax calculations, including adding or subtracting a specified tax rate.

3.2.3 Rounding and Decimal Selector

Use the "F CUT 5/4" switch to select the decimal place setting (floating, cut-off, or round-up) and the number of decimal places for results.

3.2.4 Indian Comma Marker

The display features an Indian comma marker for easy readability of large numbers.

3.2.5 200 Steps Check & Correct

Similar to the HR-8RC-BK, this model allows you to review and correct up to 200 steps of your calculations using the "BACK" and "FORWARD" keys.

Image 5: Key features of the Casio MJ-120GST, including 5 GST Slabs, GST GT Key, TAX-/GST+ Key, +/- Key, Square Root Key, Round Off & Decimal Selector, 200 Steps Check, and Lakh & Crore Comma Marker.

4. Penyelenggaraan

4.1 Pembersihan

Untuk membersihkan kalkulator anda, lap permukaan dengan lembut menggunakan kain lembut dan kering. Untuk kotoran degil, lap sedikitampen the cloth with water and a mild detergent, then wipe dry immediately. Do not use abrasive cleaners, solvents, or spray directly onto the calculator.

4.2 Penggantian Bateri

Replace batteries when the display becomes dim or the calculator functions erratically. Refer to Section 2.1.1 for HR-8RC-BK and Section 2.2.1 for MJ-120GST for specific battery replacement instructions. Always dispose of old batteries responsibly according to local regulations.

4.3 Paper Roll Replacement (HR-8RC-BK only)

When the paper roll runs out or the print becomes faint, replace it with a new one. Refer to Section 2.1.2 for detailed instructions on loading a new paper roll.

5. Penyelesaian masalah

6. Spesifikasi

6.1 Casio HR-8RC-BK Printing Calculator

Image 6: Approximate dimensions of the Casio HR-8RC-BK Printing Calculator.

6.2 Casio MJ-120GST GST Calculator

Image 7: Approximate dimensions of the Casio MJ-120GST GST Calculator.

7. Waranti dan Sokongan

For warranty information, please refer to the warranty card included with your product packaging. Casio provides customer support for product inquiries, technical assistance, and service. Please visit the official Casio website or contact their authorized service centers for further assistance.

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