مقدمه
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.
شکل 1: جلو view of the Sharp QS-2770H Printing Calculator, showing the display, keyboard, and paper roll.
راه اندازی
1. اتصال برق
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.
۲. نصب رول کاغذ
- 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.
شکل 2: سمت view illustrating the paper roll installation area.
۳. نصب/تعویض ریبون جوهر
The calculator uses a two-color ink ribbon (Victor ink ribbon 7010 or equivalent). To install or replace:
- مطمئن شوید که ماشین حساب خاموش است.
- به آرامی درب چاپگر را باز کنید.
- 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.
- درپوش چاپگر را محکم ببندید.
4 تنظیمات اولیه
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., DATE key, decimal selector switch).
دستورالعمل های عملیاتی
The Sharp QS-2770H features a professional keyboard layout designed for efficient data entry and calculations.
عملیات پایه
- جمع/تفریق: Enter numbers and press + or -.
- Multiplication/Division: Enter numbers and press x or ÷. را فشار دهید = برای نمایش نتیجه
- پاک کردن ورودی (CE): آخرین عدد وارد شده را پاک میکند.
- Clear All (C/AC): تمام ورودیها و محاسبات را پاک میکند.
توابع پیشرفته
- کل کل (GT): Accumulates results of all calculations. Press GT برای نمایش مجموع کل.
- Markup (MU): Used for cost-sell-margin calculations.
- Percent Changes (%): درصد را محاسبه می کندtage 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.
- علامت تغییر (+/-): علامت عدد نمایش داده شده را تغییر میدهد.
- تعداد آیتم ها: 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.
تعمیر و نگهداری
تمیز کردن
To maintain the calculator's appearance and functionality, regularly wipe the exterior with a soft, dry cloth. For stubborn dirt, a slightly damp میتوان از پارچه استفاده کرد، اما مطمئن شوید که هیچ مایعی وارد دستگاه نشود. از پاککنندهها یا حلالهای ساینده استفاده نکنید.
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.
عیب یابی
| مشکل | علت احتمالی | راه حل |
|---|---|---|
| نمایشگر حرف "E" یا کد خطا را نشان میدهد. | Calculation overflow, invalid operation, or internal error. | را فشار دهید C/AC to clear the error and restart the calculation. Ensure numbers are within the 12-digit capacity. |
| چاپ نشده یا چاپ کمرنگ است. | 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. |
| ماشین حساب روشن نمیشود. | 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.
مشخصات
Figure 3: Dimensions of the Sharp QS-2770H Printing Calculator.
| ویژگی | جزئیات |
|---|---|
| نام مدل | QS-2770H 12-Digit Professional Heavy-Duty Commercial Printing Calculator |
| نمایش | 12-Digit Fluorescent Display |
| سرعت چاپ | 4.8 lines-per-second |
| رنگ های چاپ | دو رنگ (مشکی/قرمز) |
| منبع تغذیه | تامین AC |
| ابعاد محصول | 13.3 x 10 x 3 اینچ (L x W x H) |
| وزن مورد | 4.8 پوند |
| Compatible Ribbon | Victor ink ribbon 7010 |
| توابع کلیدی | Date, Markup, Percent Changes, Automatic Tax, Grand Total, Item Count, Change Sign, Two Independent 4-Key Memories |
گارانتی و پشتیبانی
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 فروشگاه شارپ در آمازون.
