ভূমিকা
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Sharp QS-2770H Two-Color Printing Calculator. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your device.
চিত্র 1: সামনে view of the Sharp QS-2770H Printing Calculator, showing the display, keyboard, and paper roll.
সেটআপ
1. পাওয়ার সংযোগ
The Sharp QS-2770H calculator is AC-powered. Connect the provided AC adapter to the power input port on the back of the calculator and then plug it into a standard electrical outlet. Ensure the power switch is in the OFF position before connecting.
2. কাগজের রোল ইনস্টলেশন
- Lift the paper roll arm located at the top rear of the calculator.
- Place a new paper roll (standard 2-1/4 inch width) onto the paper roll holder, ensuring the paper feeds from the bottom of the roll.
- Feed the leading edge of the paper into the printer slot until it emerges from the front of the printer mechanism.
- Lower the paper roll arm back into position.
চিত্র 2: পার্শ্ব view illustrating the paper roll installation area.
3. Ink Ribbon Installation/Replacement
The calculator uses a two-color ink ribbon (Victor ink ribbon 7010 or equivalent). To install or replace:
- ক্যালকুলেটরটি বন্ধ আছে কিনা তা নিশ্চিত করুন।
- প্রিন্টারের কভারটি আলতো করে খুলুন।
- Remove the old ribbon cartridge if present.
- Insert the new ribbon cartridge, ensuring the ribbon is properly threaded through the guides and positioned correctly over the print head. Refer to the diagram on the ribbon cartridge for correct orientation.
- প্রিন্টার কভার নিরাপদে বন্ধ করুন।
4। প্রাথমিক সেটিংস
Before first use, or after a power interruption, you may need to set the date, decimal point, and rounding settings. Consult the specific key functions on your calculator's keyboard for these adjustments (e.g., তারিখ key, decimal selector switch).
অপারেটিং নির্দেশাবলী
The Sharp QS-2770H features a professional keyboard layout designed for efficient data entry and calculations.
বেসিক অপারেশন
- যোগ/বিয়োগ: Enter numbers and press + or -.
- Multiplication/Division: Enter numbers and press x or ÷. চাপুন = ফলাফল প্রদর্শন করতে।
- ক্লিয়ার এন্ট্রি (CE): শেষ প্রবেশ করানো সংখ্যাটি সাফ করে।
- Clear All (C/AC): সমস্ত এন্ট্রি এবং গণনা সাফ করে।
উন্নত ফাংশন
- গ্র্যান্ড টোটাল (GT): Accumulates results of all calculations. Press GT to display the grand total.
- Markup (MU): Used for cost-sell-margin calculations.
- Percent Changes (%): শতাংশ গণনা করেtage increases or decreases.
- Automatic Tax Keys (TAX+, TAX-): Pre-set tax rates for quick tax calculations. Refer to your calculator's specific instructions for setting tax rates.
- Change Sign (+/-): Changes the sign of the displayed number.
- আইটেম সংখ্যা: Automatically counts the number of entries.
- Memory Functions (M+, M-, MR, MC): Store, recall, add to, or subtract from memory. The QS-2770H features two independent 4-key memories.
The large, fluorescent display provides clear visibility of numbers and operational symbols. The 4.8 lines-per-second ribbon printer ensures fast and legible printouts of your calculations.
রক্ষণাবেক্ষণ
ক্লিনিং
To maintain the calculator's appearance and functionality, regularly wipe the exterior with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no liquid enters the device. Do not use abrasive cleaners or solvents.
Ribbon and Paper Roll Replacement
Replace the ink ribbon when printouts become faint or inconsistent. Refer to the "Ink Ribbon Installation/Replacement" section under Setup for detailed steps. Replace the paper roll when it runs out, following the "Paper Roll Installation" steps.
সমস্যা সমাধান
| সমস্যা | সম্ভাব্য কারণ | সমাধান |
|---|---|---|
| ডিসপ্লেতে "E" বা ত্রুটি কোড দেখানো হয়েছে। | Calculation overflow, invalid operation, or internal error. | চাপুন C/AC to clear the error and restart the calculation. Ensure numbers are within the 12-digit capacity. |
| No printout or faint print. | Paper roll empty, paper not loaded correctly, or ink ribbon needs replacement. | Check paper roll and reload if necessary. Replace ink ribbon (Victor ink ribbon 7010). Ensure print mode is enabled. |
| ক্যালকুলেটর চালু হচ্ছে না। | Power cord not connected, or power outlet issue. | Verify AC adapter is securely connected to both the calculator and a working electrical outlet. |
If problems persist after attempting these solutions, please contact Sharp customer support.
স্পেসিফিকেশন
Figure 3: Dimensions of the Sharp QS-2770H Printing Calculator.
| বৈশিষ্ট্য | বিস্তারিত |
|---|---|
| মডেলের নাম | QS-2770H 12-Digit Professional Heavy-Duty Commercial Printing Calculator |
| প্রদর্শন | 12-Digit Fluorescent Display |
| মুদ্রণের গতি | 4.8 lines-per-second |
| মুদ্রণ রং | Two-color (Black/Red) |
| শক্তির উৎস | এসি সাপ্লাই |
| পণ্যের মাত্রা | 13.3 x 10 x 3 ইঞ্চি (L x W x H) |
| আইটেম ওজন | 4.8 পাউন্ড |
| Compatible Ribbon | Victor ink ribbon 7010 |
| কী ফাংশন | Date, Markup, Percent Changes, Automatic Tax, Grand Total, Item Count, Change Sign, Two Independent 4-Key Memories |
ওয়্যারেন্টি এবং সমর্থন
Warranty information for the Sharp QS-2770H Printing Calculator is typically included with your purchase documentation. Please refer to the warranty card or contact Sharp customer service for details regarding coverage and terms.
For technical support, service, or additional inquiries, please visit the official Sharp Calculators store or contact their customer support channels. You can find more information at the অ্যামাজনে শার্প স্টোর.
