Johdanto
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.
Kuva 1: Etuosa view of the Sharp QS-2770H Printing Calculator, showing the display, keyboard, and paper roll.
Asennus
1. Virtaliitäntä
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. Paperirullan asennus
- 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.
Kuva 2: Sivu 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:
- Varmista, että laskin on sammutettu.
- Avaa tulostimen kansi varovasti.
- 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.
- Sulje tulostimen kansi kunnolla.
4. Alkuasetukset
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).
Käyttöohjeet
The Sharp QS-2770H features a professional keyboard layout designed for efficient data entry and calculations.
Perustoiminnot
- Yhteen-/vähennyslasku: Syötä numerot ja paina + or -.
- Kerto-/jakolasku: Syötä numerot ja paina x or ÷. Paina = näyttääksesi tuloksen.
- Tyhjä merkintä (CE): Clears the last entered number.
- Tyhjennä kaikki (C/AC): Clears all entries and calculations.
Lisätoiminnot
- Yhteensä (GT): Accumulates results of all calculations. Press GT kokonaissumman näyttämiseksi.
- Merkintä (MU): Used for cost-sell-margin calculations.
- Percent Changes (%): Laskee prosenttiatage 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.
- Muuta etumerkkiä (+/-): Muuttaa näytetyn numeron etumerkkiä.
- Tuotemäärä: 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.
Huolto
Puhdistus
To maintain the calculator's appearance and functionality, regularly wipe the exterior with a soft, dry cloth. For stubborn dirt, a slightly damp liinaa voi käyttää, mutta varmista, ettei laitteen sisään pääse nestettä. Älä käytä hankaavia puhdistusaineita tai liuottimia.
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.
Vianetsintä
| Ongelma | Mahdollinen syy | Ratkaisu |
|---|---|---|
| Näytössä näkyy "E" tai virhekoodi. | Calculation overflow, invalid operation, or internal error. | Paina C/AC to clear the error and restart the calculation. Ensure numbers are within the 12-digit capacity. |
| Ei tulostetta tai tuloste on haalistunut. | 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. |
| Laskin ei käynnisty. | 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.
Tekniset tiedot
Figure 3: Dimensions of the Sharp QS-2770H Printing Calculator.
| Ominaisuus | Yksityiskohta |
|---|---|
| Mallin nimi | QS-2770H 12-Digit Professional Heavy-Duty Commercial Printing Calculator |
| Näyttö | 12-Digit Fluorescent Display |
| Tulostusnopeus | 4.8 lines-per-second |
| Värien tulostaminen | Kaksivärinen (musta/punainen) |
| Virtalähde | AC syöttö |
| Tuotteen mitat | 13.3 x 10 x 3 tuumaa (L x L x K) |
| Tuotteen paino | 4.8 kiloa |
| Compatible Ribbon | Victor ink ribbon 7010 |
| Näppäintoiminnot | Date, Markup, Percent Changes, Automatic Tax, Grand Total, Item Count, Change Sign, Two Independent 4-Key Memories |
Takuu ja tuki
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 Sharp-myymälä Amazonissa.
