1. Pengenalan
This manual provides comprehensive instructions for the operation and maintenance of your Sharp EL-1901 Paperless Printing Desk Calculator. Please read this manual thoroughly before using the calculator to ensure proper function and longevity.
Produk Selesaiview
The Sharp EL-1901 is a paperless printing calculator designed for efficiency and environmental consciousness. It combines the robust functionality of a traditional desktop calculator with an innovative digital display that eliminates the need for paper and ink. Its unique features include a large 12-digit primary LCD and a secondary 5-line scrolling LCD for reviewing past calculations.
Ciri-ciri Utama
- Operasi tanpa kertas: Eco-friendly design eliminates the need for paper rolls and ink ribbons.
- Dual LCD Displays: Features a large 12-digit primary display and a secondary 5-line scrolling display for reviewing up to 300 previous entries.
- Check and Correct Function: Easily modify and recalculate entries within the 300-line history for accuracy.
- Papan Kekunci Saiz Penuh: Includes dedicated keys for tax calculations (TAX+, TAX-), cost/sell/margin (COST, SELL, MGN), grand total (GT), backspace, and memory functions (M+, M-, M*, M/).
- Quiet and Fast Operation: Provides instant results without the noise associated with traditional printing calculators.
- AC Bertenaga: Designed for continuous use with an included AC adapter.
2. Persediaan
Menghidupkan Kalkulator
The Sharp EL-1901 calculator is primarily powered by an AC adapter. Locate the AC adapter port on the side or rear of the calculator and plug in the provided adapter. Connect the adapter to a standard electrical outlet.
For backup or memory retention, the calculator also requires 1 CR2032 battery. Ensure this battery is installed correctly in its compartment, typically located on the underside of the unit, to maintain settings and memory during power interruptions or when the AC adapter is disconnected.
Rajah 2.1: Depan view of the Sharp EL-1901 calculator, showing the main display and secondary scrolling display.
3. Arahan Operasi
Operasi Asas
To turn the calculator ON, press the HIDUP/MATI button. The main 12-digit display will illuminate. The secondary 5-line display will show previous entries or be blank if reset.
- Entri Nombor: Use the numeric keypad (0-9, 00, .) to enter values.
- Operasi Aritmetik: Gunakan + (addition), - (subtraction), x (multiplication), and ÷ (division) keys. Press = to calculate the result.
- Clear Entry/Clear All: The C/CE key clears the last entry. Pressing it twice typically clears all entries and resets the calculation.
- Ruang belakang: Gunakan ← key to delete the last digit entered.
- Change Sign: Gunakan +/- key to change the sign of the displayed number.
Paperless Printing and Scrolling Display
The secondary 5-line LCD acts as your digital "paper tape," displaying up to 300 lines of previous calculations. Use the ▲ (atas) dan ▼ (down) arrow keys to scroll through your entry history.
Rajah 3.1: Jarak dekat view of the calculator's main 12-digit display and the secondary 5-line scrolling display.
Check and Correct Function
Ciri ini membolehkan anda untuk semulaview and edit past entries. While viewing the history on the secondary display:
- guna ▲ dan ▼ to navigate to the entry you wish to correct.
- Tekan ke BETUL key. Enter the new value.
- Tekan INSERT to add a new line before the selected entry, or PADAM to remove the selected entry.
- The calculator will automatically recalculate the total based on your changes.
- To clear all entries from the secondary display, press the PADAM SEMUA kunci.
Video 3.1: Official product video demonstrating the Sharp EL-1901 Paperless Printing Calculator, highlighting its check and correct function and dual displays.
Fungsi Khas
- Cost/Sell/Margin (COST, SELL, MGN): These keys simplify profit margin calculations. Enter any two variables (cost, selling price, or margin percentage), and the calculator will automatically compute the third.
- Tax Keys (TAX+, TAX-): Use these keys for quick tax calculations. Set the tax rate using the KADAR SET butang.
- Jumlah Besar (GT): Accumulates the results of multiple calculations. Press GT untuk memaparkan jumlah keseluruhan.
- Memory Keys (M+, M-, M*, M/): Store and recall values from memory.
- M+: Menambah nilai yang dipaparkan ke memori.
- M-: Menolak nilai yang dipaparkan daripada ingatan.
- M*: Multiplies the displayed value with memory.
- M/: Divides the displayed value with memory.
- RM/CM: Recalls memory content / Clears memory content.
- Rounding Keys (ROUND, DEC): Adjust rounding settings for calculations.
4. Penyelenggaraan
Pembersihan
To clean the calculator, use a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Do not use strong solvents or abrasive materials, as they may damage the surface or displays.
Penggantian Bateri
The calculator uses one CR2032 battery for memory backup. If the display shows erratic behavior or memory functions are unreliable when the AC adapter is disconnected, the battery may need replacement.
- Ensure the calculator is turned off and disconnected from the AC power.
- Locate the battery compartment on the underside of the calculator.
- Open the compartment cover (you may need a small screwdriver).
- Remove the old CR2032 battery and insert a new one, observing the correct polarity (+/-).
- Tutup penutup petak bateri dengan selamat.
5. Penyelesaian masalah
If you encounter issues with your Sharp EL-1901 calculator, please refer to the following common problems and solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Calculator does not turn on or respond to key presses. | No power, loose AC adapter connection, or internal malfunction. |
|
| Secondary display (scrolling history) is blank or not updating. | Display cleared, or a temporary software glitch. |
|
| Keputusan pengiraan yang salah. | Incorrect entry, incorrect function used, or rounding settings. |
|
6. Spesifikasi
- model: EL-1901
- Jenama: tajam
- Dimensi Produk: 11.02 x 8.27 x 3.15 inci
- Berat Barang: 1.94 paun
- Sumber Kuasa: Penyesuai AC
- Bateri: 1 x CR2032 (for memory backup)
- Saiz Skrin: 4 Inches (primary display)
- Jenis Paparan: 12-Digit LCD Primary, 5-Line Scrolling LCD Secondary
- warna: putih
7. Waranti dan Sokongan
For warranty information, please refer to the documentation included with your purchase or visit the official Sharp Calculators website. If you require technical assistance or have questions not covered in this manual, please contact Sharp customer support.
Official Sharp Calculators Webtapak: www.sharpcalculators.com
