User Manual for Victor 1240-3A Printing Calculator

Quick guide from the manual

The Victor 1240-3A is a 12-digit printing calculator. To get started, ensure the device is connected to a power source (AC adapter 6V DC or 4 AA batteries). Always ensure paper is loaded before operating the printer to avoid damaging the print head. Use the [D/#] key to print digits displayed on the screen when the power is ON.

Preparation

Power Source: The unit operates on an AC adapter (6V DC, 300mA) or 4 AA size manganese dry batteries (UM-3).

Loading Paper:

1. Place the paper holder into position.
2. Install the paper roll onto the holders.
3. Insert the paper end into the printer slot.
4. Press the paper feed key to feed the paper to an adequate length.

Replacing the Ink Ribbon

If printing becomes faint, replace the ink roller:

1. Turn the power off.
2. Open the printer cover.
3. Remove the old ink roller by pulling it up.
4. Install the new ribbon (red to the bottom) by inserting the spools in the reverse sequence.

Key Functions and Display

The calculator features various keys for arithmetic, memory, and tax calculations:

• SET/CAL: Selects set mode for tax rate or normal calculation mode.
• P/NP/IP: Controls printer status (Printer on, Printer off, Printer Item count mode).
• MU/MD: Calculates selling price and profit/loss margin.
• TAX+/TAX-: Calculates tax amounts based on a stored rate.
• GT: Selects Grand Total mode.
• Display Symbols: M (Memory stored), E (Error/Overflow), - (Negative value), GT (Grand total).

Calculation Examples

The manual provides detailed examples for:

• Arithmetic: Basic operations, constant multiplication, and division.
• Percent: Percentage calculations and percent of change.
• Memory: Storing, recalling, and clearing memory values.
• Rounding: Settings for rounding up, off, or down.
• Tax: Calculating tax-included or tax-excluded amounts.

Technical Specifications

• Display: 12-digit large LCD.
• Printing Speed: 4.1 lines/sec.
• Paper: 58mm (2 1/4 inch) width.
• Power: 120V/60Hz (USA/Canada) or 230V/50Hz (ECD).
• Ambient Temperature: 0°C to 40°C (32°F to 104°F).
• Weight: 1650g.