Návod k použití

1. Úvod

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.

Konec produktuview

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.

Klíčové vlastnosti

• Bezpapírový provoz: Eco-friendly design eliminates the need for paper rolls and ink ribbons.
• Duální LCD displeje: 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.
• Klávesnice v plné velikosti: 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 napájení: Designed for continuous use with an included AC adapter.

2. Nastavení

Napájení kalkulačky

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.

Obrázek 2.1: Přední strana view of the Sharp EL-1901 calculator, showing the main display and secondary scrolling display.

3. Návod k obsluze

Základní operace

To turn the calculator ON, press the ON/OFF button. The main 12-digit display will illuminate. The secondary 5-line display will show previous entries or be blank if reset.

• Zadání čísla: Use the numeric keypad (0-9, 00, .) to enter values.
• Aritmetické operace: Použijte + (přidání), - (odčítání), x (násobení) a ÷ (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.
• Backspace: Použijte ← key to delete the last digit entered.
• Change Sign: Použijte +/- 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 ▲ (nahoru a ▼ (down) arrow keys to scroll through your entry history.

Obrázek 3.1: Detail view of the calculator's main 12-digit display and the secondary 5-line scrolling display.

Check and Correct Function

Tato funkce umožňuje review and edit past entries. While viewing the history on the secondary display:

• Použití ▲ a ▼ to navigate to the entry you wish to correct.
• Stiskněte tlačítko OPRAVIT key. Enter the new value.
• Stiskněte VLOŽIT to add a new line before the selected entry, or VYMAZAT 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 VYMAZAT VŠE klíč.

Speciální funkce

• 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 SAZBA SET tlačítko.
• Celkový součet (GT): Accumulates the results of multiple calculations. Press GT pro zobrazení celkového součtu.
• Memory Keys (M+, M-, M*, M/): Store and recall values from memory.
  • M+: Adds the displayed value to memory.
  • M-: Subtracts the displayed value from memory.
  • 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. Údržba

Čištění

K čištění kalkulačky použijte měkký, suchý hadřík. V případě odolné nečistoty lehceampen 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.

Výměna baterie

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.

1. Ensure the calculator is turned off and disconnected from the AC power.
2. Locate the battery compartment on the underside of the calculator.
3. Open the compartment cover (you may need a small screwdriver).
4. Remove the old CR2032 battery and insert a new one, observing the correct polarity (+/-).
5. Bezpečně zavřete kryt bateriového prostoru.

5. Řešení problémů

If you encounter issues with your Sharp EL-1901 calculator, please refer to the following common problems and solutions:

6. Specifikace

• Model: EL-1901
• Značka: Ostrý
• Rozměry produktu: 11.02 x 8.27 x 3.15 palce
• Hmotnost položky: 1.94 libry
• Zdroj napájení: AC adaptér
• Baterie: 1 x CR2032 (for memory backup)
• Velikost obrazovky: 4 Inches (primary display)
• Typ displeje: 12-Digit LCD Primary, 5-Line Scrolling LCD Secondary
• Barva: Bílý

7. Záruka a podpora

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 Webmísto: www.sharpcalculators.com