1. Introduzzjoni
Grazzi tax-xiriasing the Casio JE-12D-WE-N Ergonomic 12-Digit Day & Time Calculator. This manual provides detailed instructions for the proper use and maintenance of your calculator. Designed with user comfort in mind, this calculator features an ergonomic design to facilitate natural and efficient operation. Please read this manual thoroughly before using the product and keep it for future reference.
Figura 1.1: Angolat view of the Casio JE-12D-WE-N calculator, showcasing its white finish and key layout.
2. Setup
2.1 Sors tal-Enerġija
The Casio JE-12D-WE-N calculator operates on both solar power and a backup battery. For optimal performance, ensure the solar panel is exposed to sufficient light. If the display is dim or unresponsive in low light, the battery may be low.
2.2 Użu Inizjali
- Agħfas il- ON/AC button to turn on the calculator and clear any previous calculations.
- Verify the display shows "0" to confirm it is ready for use.
3. Istruzzjonijiet Operattivi
3.1 Kalkoli Bażiċi
- Żieda (+), Tnaqqis (-), Multiplikazzjoni (×), Diviżjoni (÷): Enter the first number, press the desired operator key, enter the second number, then press =.
- Clear Entry (C): Iħassar l-aħħar numru jew operazzjoni li daħħalt.
- Kollox ċar (AC): Clears all entries and calculations, resetting the calculator to zero.
3.2 Funzjonijiet tal-Memorja
- M+: Iżżid il-valur muri mal-memorja.
- M-: Inaqqas il-valur muri mill-memorja.
- MR: Recalls the value stored in memory.
- MC: Clears the memory.
3.3 Kalkolu tat-Taxxa
The calculator includes dedicated keys for tax calculations.
- L-Istabbiliment tar-Rata tat-Taxxa: Agħfas 税率設定 (Tax Rate Setting), enter the tax rate percentage, imbagħad agħfas 税率設定 mill-ġdid biex issalva.
- Tax+: Adds tax to the displayed value.
- Tax-: Subtracts tax from the displayed value.
3.4 Day/Time Calculation
Uża l- 日数/時間 (Day/Time) key for specific date and time calculations. Refer to the on-screen indicators for day and time modes.
Figura 3.1: Quddiem view of the calculator, highlighting the display and key layout, including dedicated tax and day/time keys.
4. Karatteristiċi ewlenin
4.1 Disinn Ergonomiku
The Casio JE-12D-WE-N is engineered with an ergonomic design, ensuring comfort and ease of use during extended periods. The calculator's housing and keys are shaped to fit the natural posture of the hand.
Figura 4.1: Ġenb view illustrating the 3-degree ergonomic tilt of the calculator, designed for comfortable operation.
This design allows the right hand to operate at a slight angle, with key presses remaining vertical, reducing strain. This approach is based on thorough analysis of hand and finger states during operation, conducted in collaboration with specialized institutions.
Figure 4.2: Diagram explaining the ergonomic key design, showing how the hand naturally fits the calculator and key presses are vertical.
Figure 4.3: Close-up showing the rounded, soft design and the wave-patterned texture on the back for improved grip.
Figure 4.4: Images depicting the detailed analysis of hand and finger positions during calculator operation, contributing to the ergonomic design.
4.2 Responsive Key Input
The calculator features a 3-key rollover function, allowing for rapid input without missed keystrokes. The key arrangement and concave shape of the keys are designed for optimal typing comfort and accuracy.
Figure 4.5: Illustration of the fast input capability and the ergonomic concave key shapes for improved typing.
4.3 Durable Keys and Stability
Keys are constructed using a two-color molded resin process (excluding some keys), ensuring that numbers and symbols do not wear off over time. Large stoppers on the base prevent the calculator from slipping during use, providing stable operation.
Figure 4.6: Detail of the two-color molded keys for durability and the large non-slip stoppers on the calculator's base.
5. Manutenzjoni
5.1 Tindif
- Imsaħ il-kalkulatur b'ċarruta ratba u niexfa.
- Għal ħmieġ iebes, neħħi ftitampLaħlaħ id-drapp bl-ilma u deterġent ħafif, imbagħad imsaħ niexef immedjatament.
- Do not use strong solvents, abrasive cleaners, or spray cleaners directly onto the calculator.
5.2 Ħażna
Aħżen il-kalkulatur f'post frisk u niexef 'il bogħod mix-xemx diretta u minn temperaturi estremi.
6 Issolvi l-problemi
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| Id-displej huwa vojt jew mudlam. | Dawl insuffiċjenti għall-pannell solari, jew batterija baxxa. | Move the calculator to a well-lit area. If the problem persists, the battery may need replacement (consult service center). |
| Riżultati tal-kalkolu mhux korretti. | Incorrect input, or memory function active. | Agħfas AC to clear all operations. Re-enter the calculation carefully. Check if the "M" indicator is on and clear memory with MC jekk meħtieġ. |
| Iċ-ċwievet ma jirrispondux. | Calculator may be frozen. | Agħfas ON/AC to reset. If problem persists, contact customer support. |
7. Speċifikazzjonijiet
- Mudell: Casio JE-12D-WE-N
- Ditta: Casio
- Ċifri: Wiri bi 12-il ċifri
- Funzjonijiet: Basic arithmetic, Memory, Tax calculation, Day/Time calculation, Percentage, Square Root, Grand Total (GT)
- Qawwa: Solar and Battery (Dual Power)
- Karatteristiċi: Ergonomic design, 3-key rollover, two-color molded keys, large non-slip stoppers.
8. Garanzija u Appoġġ
Għal informazzjoni dwar il-garanzija u appoġġ għall-klijenti, jekk jogħġbok irreferi għall-karta tal-garanzija inkluża mal-prodott tiegħek jew żur is-sit uffiċjali ta' Casio. websit. Żomm l-irċevuta tax-xiri tiegħek bħala prova tax-xiri.
Casio Uffiċjali Websit: www.casio.com
