1. المقدمة
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.
المنتج انتهىview
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.
الميزات الرئيسية
- عملية بلا ورق: 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.
- لوحة مفاتيح كاملة الحجم: 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.
- يعمل بالطاقة AC: Designed for continuous use with an included AC adapter.
2. الإعداد
تشغيل الآلة الحاسبة
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.
الشكل 2.1: الجبهة view of the Sharp EL-1901 calculator, showing the main display and secondary scrolling display.
3. تعليمات التشغيل
العمليات الأساسية
To turn the calculator ON, press the تشغيل/إيقاف button. The main 12-digit display will illuminate. The secondary 5-line display will show previous entries or be blank if reset.
- إدخال الرقم: Use the numeric keypad (0-9, 00, .) to enter values.
- عمليات حسابية: استخدم + (إضافة)، - (الطرح)، x (الضرب)، و ÷ (division) keys. Press = to calculate the result.
- مسح الإدخال/مسح الكل: ال ج / م key clears the last entry. Pressing it twice typically clears all entries and resets the calculation.
- مسافة خلفية: استخدم ← key to delete the last digit entered.
- Change Sign: استخدم +/- 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 ▲ (أعلى و ▼ (down) arrow keys to scroll through your entry history.
الشكل 3.1: الصورة عن قرب view of the calculator's main 12-digit display and the secondary 5-line scrolling display.
Check and Correct Function
تتيح لك هذه الميزة إعادةview and edit past entries. While viewing the history on the secondary display:
- يستخدم ▲ و ▼ to navigate to the entry you wish to correct.
- اضغط على صحيح key. Enter the new value.
- يضعط إدراج to add a new line before the selected entry, or يمسح 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 حذف الكل مفتاح.
Video 3.1: Official product video demonstrating the Sharp EL-1901 Paperless Printing Calculator, highlighting its check and correct function and dual displays.
وظائف خاصة
- 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.
- مفاتيح الضرائب (TAX+، TAX-): Use these keys for quick tax calculations. Set the tax rate using the ضبط المعدل زر.
- المجموع الكلي (طن): Accumulates the results of multiple calculations. Press GT لعرض المجموع الكلي.
- Memory Keys (M+, M-, M*, M/): Store and recall values from memory.
- M+: يضيف القيمة المعروضة إلى الذاكرة.
- M-: يطرح القيمة المعروضة من الذاكرة.
- 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. الصيانة
تنظيف
لتنظيف الآلة الحاسبة، استخدم قطعة قماش ناعمة وجافة. لإزالة الأوساخ المستعصية، امسحها برفق.ampen 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.
استبدال البطارية
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.
- حدد مكان حجرة البطارية في الجانب السفلي من الآلة الحاسبة.
- Open the compartment cover (you may need a small screwdriver).
- Remove the old CR2032 battery and insert a new one, observing the correct polarity (+/-).
- أغلق غطاء حجرة البطارية جيدًا.
5. استكشاف الأخطاء وإصلاحها
If you encounter issues with your Sharp EL-1901 calculator, please refer to the following common problems and solutions:
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| 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. |
|
| نتائج حسابية غير صحيحة. | Incorrect entry, incorrect function used, or rounding settings. |
|
6. المواصفات
- نموذج: EL-1901
- ماركة: حاد
- أبعاد المنتج: 11.02 × 8.27 × 3.15 بوصة
- وزن السلعة: 1.94 رطل
- مصدر الطاقة: محول التيار المتردد
- بطارية: 1 x CR2032 (for memory backup)
- حجم الشاشة: 4 Inches (primary display)
- نوع العرض: 12-Digit LCD Primary, 5-Line Scrolling LCD Secondary
- لون: أبيض
7. الضمان والدعم
For warranty information, please refer to the documentation included with your purchase or visit the official Sharp Calculators webالموقع. إذا كنت بحاجة إلى مساعدة فنية أو لديك أسئلة لم يتم تغطيتها في هذا الدليل، فيرجى الاتصال بدعم عملاء شارب.
Official Sharp Calculators Webموقع: www.sharpcalculators.com
