1. はじめに
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.
製品終了view
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.
主な特徴
- ペーパーレス運用: 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.
- フルサイズキーボード： 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電源： Designed for continuous use with an included AC adapter.
2. セットアップ
計算機の電源を入れる
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.
図2.1: 前面 view of the Sharp EL-1901 calculator, showing the main display and secondary scrolling display.
3. 操作手順
基本操作
To turn the calculator ON, press the オン/オフ button. The main 12-digit display will illuminate. The secondary 5-line display will show previous entries or be blank if reset.
- 番号入力: Use the numeric keypad (0-9, 00, .) to enter values.
- 算術演算: 使用 + （追加）、 - （減算）、 x （掛け算）、そして ÷ (division) keys. Press = 結果を計算します。
- エントリをクリア/すべてクリア: の CE/CE の翻訳 key clears the last entry. Pressing it twice typically clears all entries and resets the calculation.
- バックスペース: 使用 ← key to delete the last digit entered.
- Change Sign: 使用 +/- 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 ▲ （上）と ▼ (down) arrow keys to scroll through your entry history.
図 3.1: 拡大図 view of the calculator's main 12-digit display and the secondary 5-line scrolling display.
Check and Correct Function
この機能により、view and edit past entries. While viewing the history on the secondary display:
- 使用 ▲ そして ▼ to navigate to the entry you wish to correct.
- を押す 正しい key. Enter the new value.
- プレス 入れる to add a new line before the selected entry, or 消去 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 すべて削除 鍵。
Video 3.1: Official product video demonstrating the Sharp EL-1901 Paperless Printing Calculator, highlighting its check and correct function and dual displays.
特殊機能
- 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 レートセット ボタン。
- 総計（GT）: Accumulates the results of multiple calculations. Press GT 総合計を表示します。
- Memory Keys (M+, M-, M*, M/): Store and recall values from memory.
- M+: 表示されている値をメモリに追加します。
- M-: 表示されている値をメモリから減算します。
- 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. メンテナンス
クリーニング
電卓を清掃するには、柔らかく乾いた布を使用してください。頑固な汚れには、軽く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.
バッテリー交換
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.
- 電卓の底面にある電池ボックスを見つけます。
- Open the compartment cover (you may need a small screwdriver).
- Remove the old CR2032 battery and insert a new one, observing the correct polarity (+/-).
- 電池カバーをしっかりと閉じてください。
5。 トラブルシューティング
If you encounter issues with your Sharp EL-1901 calculator, please refer to the following common problems and solutions:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| 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. |
|
| 計算結果が正しくありません。 | Incorrect entry, incorrect function used, or rounding settings. |
|
6. 仕様
- モデル： EL-1901
- ブランド： シャープ
- 製品寸法: 11.02 x 8.27 x 3.15インチ
- 商品の重量: 1.94ポンド
- 電源: ACアダプター
- バッテリー： 1 x CR2032 (for memory backup)
- 画面サイズ: 4 Inches (primary display)
- 表示タイプ: 12-Digit LCD Primary, 5-Line Scrolling LCD Secondary
- 色： 白
7. 保証とサポート
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 Webサイト： www.sharpcalculators.com
