1. Introduction
This manual provides detailed instructions for the proper use and maintenance of your Casio KL-820 EZ-LABEL PRINTER. Please read this manual thoroughly before operating the device to ensure safe and efficient use. Keep this manual for future reference.
2. Product Overview
The Casio KL-820 is a portable label printer designed for creating professional-quality labels. It features a QWERTY keyboard, a 4-line/16-digit display, and supports various label tape sizes and print styles.
Key Features:
- Display: 4 Lines / 16 Digits
- Supported label tape sizes: 6 / 9 / 12 / 18 / 24 mm
- Print Styles: Normal, Outline, Bold, Shadow, Raised
- 5 fonts (Sans-serif, Sans-serif Italic, Sans-serif Rounded, Roman, Roman Italic)
- QWERTY-Keyboard for easy text input
- USB Connectivity for desktop or laptop use

Image: The Casio KL-820 EZ-LABEL PRINTER, showcasing its QWERTY keyboard, display, and a yellow label tape being dispensed.
Product Overview Video:
Video: A brief overview demonstrating the unboxing, features, and basic operation of the Casio KL-820 Label Printer.
3. Setup
3.1 Unpacking the Printer
Carefully remove all components from the packaging. Verify that all items listed in the packing list are present. Retain the packaging for future storage or transport.

Image: Contents of the Casio KL-820 EZ-LABEL PRINTER box, including the printer unit, user manual, and sample tape.
3.2 Power Supply
The KL-820 operates on 6 AA alkaline batteries (not included) or an optional AC adapter (not included). To install batteries:
- Open the battery compartment cover on the bottom of the printer.
- Insert 6 AA alkaline batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
3.3 Loading a Label Tape Cartridge
The printer uses Casio EZ-Label Printer tapes. To load a tape cartridge:
- Ensure the printer is turned off.
- Open the tape compartment cover located on the top-right side of the printer.
- Insert the tape cartridge firmly into the compartment, ensuring the tape feeds correctly into the printer mechanism.
- Close the tape compartment cover until it clicks into place.

Image: A hand demonstrating how to correctly insert a label tape cartridge into the Casio KL-820 printer.
4. Operating Instructions
4.1 Turning On/Off
Press the ON/OFF button to turn the printer on or off.
4.2 Entering Text
Use the QWERTY keyboard to type your desired text. The text will appear on the 4-line display.
4.3 Selecting Font and Style
Press the FONT button to cycle through the 5 available fonts. Use the STYLE button to select print styles such as Normal, Outline, Bold, Shadow, or Raised. The display will show a preview of your selection.
4.4 Printing a Label
After entering text and selecting your desired font and style:
- Press the PRINT button.
- Confirm the print settings on the display.
- Press ENTER to start printing.
- Once the label is printed, use the built-in cutter to cut the label.
4.5 Practical Applications

Image: Various office files organized with printed labels, demonstrating the printer's utility for document management.

Image: Computer cables clearly labeled for easy identification, showcasing the printer's use in cable management.

Image: Pens and other small office supplies labeled, illustrating the printer's versatility for personal item organization.

Image: Laboratory equipment such as beakers and petri dishes with printed labels, highlighting the printer's application in scientific settings.

Image: A collage showing diverse labeling applications, including files, cables, industrial panels, coffee bags, and safety equipment.
5. Maintenance
5.1 Cleaning the Printer
To maintain optimal print quality, regularly clean the print head and tape path. Use a soft, dry cloth to wipe the exterior of the printer. For the print head, use a cotton swab lightly moistened with isopropyl alcohol. Ensure the printer is off and disconnected from any power source before cleaning.
5.2 Replacing Tape Cartridges
When the tape cartridge is empty or you wish to change tape types, follow the loading instructions in Section 3.3 in reverse to remove the old cartridge, then insert the new one.
6. Troubleshooting
6.1 No Power
- Check if batteries are correctly inserted and not depleted. Replace if necessary.
- If using an AC adapter, ensure it is properly connected to both the printer and a working power outlet.
6.2 Poor Print Quality
- Clean the print head as described in Section 5.1.
- Ensure the tape cartridge is correctly installed and not damaged.
- Verify that the tape is not old or expired.
6.3 Tape Jam
- Turn off the printer and open the tape compartment cover.
- Carefully remove the jammed tape. Do not pull forcefully.
- Reinsert the tape cartridge, ensuring it is properly seated.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | KL-820 |
| Display | 4 Lines / 16 Digits |
| Supported Tape Sizes | 6 / 9 / 12 / 18 / 24 mm |
| Printing Technology | Thermal |
| Max Print Speed Monochrome | 20 mm/sec |
| Max Print Resolution | 200 dpi |
| Keyboard | QWERTY |
| Connectivity | USB |
| Power Source | 6 x AA Batteries or AC Adapter (not included) |
| Item Weight | 900 g (0.9 Kilograms) |
| Product Dimensions (LxWxH) | 22.3 x 16.7 x 5.3 Centimeters (8.8W x 6.6D x 2.1H Inches) |
| Manufacturer | Casio |
| Country of Origin | China |
8. Warranty and Support
8.1 Manufacturer Warranty
The Casio KL-820 EZ-LABEL PRINTER comes with a 3 Years All India Manufacturer Warranty. Please retain your purchase receipt for warranty claims.
8.2 Customer Support
For technical assistance, troubleshooting, or warranty service, please contact Casio customer support. Refer to the contact information provided in your product packaging or visit the official Casio website for details.