1. Introduktion
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.
Produkt overview
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.
Nøglefunktioner
- Papirløs betjening: 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.
- Tastatur i fuld størrelse: 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 drevet: Designed for continuous use with an included AC adapter.
2. Opsætning
Tænd for lommeregneren
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.
Figur 2.1: Forside view of the Sharp EL-1901 calculator, showing the main display and secondary scrolling display.
3. Betjeningsvejledning
Grundlæggende operationer
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.
- Indtastning af nummer: Use the numeric keypad (0-9, 00, .) to enter values.
- Aritmetiske operationer: Brug + (addition), - (subtraction), x (multiplication), and ÷ (division) keys. Press = to calculate the result.
- Clear Entry/Clear All: De C/CE key clears the last entry. Pressing it twice typically clears all entries and resets the calculation.
- Backspace: Brug ← key to delete the last digit entered.
- Change Sign: Brug +/- 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 ▲ (op) og ▼ (down) arrow keys to scroll through your entry history.
Figur 3.1: Nærbillede view of the calculator's main 12-digit display and the secondary 5-line scrolling display.
Check and Correct Function
Denne funktion giver dig mulighed for at genview and edit past entries. While viewing the history on the secondary display:
- Bruge ▲ og ▼ to navigate to the entry you wish to correct.
- Tryk på KORREKT key. Enter the new value.
- Trykke INDSÆT to add a new line before the selected entry, or SLET 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 SLET ALLE nøgle.
Video 3.1: Official product video demonstrating the Sharp EL-1901 Paperless Printing Calculator, highlighting its check and correct function and dual displays.
Særlige funktioner
- 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 TASTE SÆT knap.
- Grand Total (GT): Accumulates the results of multiple calculations. Press GT for at vise den samlede sum.
- 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. Vedligeholdelse
Rensning
Brug en blød, tør klud til at rengøre lommeregneren. Til genstridigt snavs, tør letampen 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.
Udskiftning af batteri
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 (+/-).
- Luk batterirummets dæksel forsvarligt.
5. Fejlfinding
If you encounter issues with your Sharp EL-1901 calculator, please refer to the following common problems and solutions:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| 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. |
|
| Forkerte beregningsresultater. | Incorrect entry, incorrect function used, or rounding settings. |
|
6. Specifikationer
- Model: EL-1901
- Mærke: Skarp
- Produktdimensioner: 11.02 x 8.27 x 3.15 tommer
- Varens vægt: 1.94 pund
- Strømkilde: AC Adapter
- Batteri: 1 x CR2032 (for memory backup)
- Skærmstørrelse: 4 Inches (primary display)
- Skærmtype: 12-Digit LCD Primary, 5-Line Scrolling LCD Secondary
- Farve: Hvid
7. Garanti og support
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 Webwebsted: www.sharpcalculators.com
