1. Introduction
The PUTY PT-112DC is an industrial professional thermal label printer designed for efficient and high-quality label printing. It supports various label types and offers versatile connectivity options including Bluetooth and USB, making it suitable for a wide range of applications from warehouse management to retail. This manual provides detailed instructions for setting up, operating, and maintaining your PT-112DC printer.
2. Product Overview
2.1. Printer Components
Familiarize yourself with the key components of your PT-112DC printer:

Figure 1: PT-112DC Printer Components
- Paper Compartment Cover: Protects the label roll and print mechanism.
- LCD Screen: Displays printer status and settings.
- Open Button: Releases the paper compartment cover.
- Power Button: Turns the printer on/off.
- Setting Button: Navigates through menu options or adjusts settings.
- Paper Key (Feed Button): Feeds paper or confirms selections.
- USB Port: For wired connection to a computer and charging.
2.2. Connectivity
The PT-112DC printer supports multiple connection methods:
- USB: For direct connection to a PC.
- Bluetooth: For wireless connection to smartphones and other compatible devices.

Figure 2: Multi-platform Compatibility and Print Width
3. Specifications
| Feature | Specification |
|---|---|
| Product Model | PT-112DC |
| Printing Method | Thermal Printing |
| Connection Mode | USB, Bluetooth |
| Max. Resolution | 203 dpi |
| Printing Speed | 70mm/s |
| Max Paper Width | 40-112mm |
| Max Print Width | 104mm |
| Print Control Instruction | ESC/POS Compatible instruction set / CPCL instruction set |
| Paper Type | Thermal Paper / Thermal Synthetic / Thermal Label |
| Operating Temperature/Humidity | 0℃-50℃ / 10%-80% |
| Storage Temperature/Humidity | -20℃-60℃ / 10%-90% |
| Battery Supply Mode | 7.4V/2500mAh power |
| Charging Time | Approximately 4 hours for full charge |
| Print Content | Text, Image, Custom Characters, Graph 1D/2D Barcode, Graphics (supports BMP binary bitmap) |
| Size | 150mm x 110mm x 58mm |
| Weight | 420g |

Figure 3: PT-112DC Printer Dimensions
4. Setup
4.1. Package Contents
Before starting, ensure all items are present in the package:
- PT-112DC Thermal Label Printer
- Battery
- Power Charger
- Paper Adjustment Board
- USB Cable
- Label Roll
4.2. Charging the Printer
- Locate the charging port on the side of the printer. It is protected by a red rubber cover.
- Open the rubber cover to expose the charging port (small circular port) and the USB port (micro-USB).
- Connect the power charger to the charging port.
- Plug the power charger into a suitable power outlet.
- The printer's LCD screen or indicator light will show charging status. A full charge takes approximately 4 hours.

Figure 4: Charging Port Access
4.3. Loading the Label Roll
- Press the 'Open' button on the side of the printer to release the paper compartment cover.
- Lift the cover to open the paper compartment.
- Insert the label roll into the compartment, ensuring the labels feed from the bottom and the printable side is facing up.
- Adjust the paper guides to fit the width of your label roll using the Paper Adjustment Board if necessary.
- Pull a small length of label paper out past the print head.
- Close the paper compartment cover firmly until it clicks into place.

Figure 5: Loading Label Roll
4.4. Initial Power On
- Press and hold the 'Power' button until the LCD screen illuminates.
- The printer will perform a self-test and display its status.
5. Operation
5.1. Connecting via Bluetooth (Smartphone/Tablet)
- Ensure the printer is powered on and Bluetooth is enabled on your mobile device.
- Open the dedicated PUTY Print application (or compatible label printing app) on your device.
- Within the app, navigate to the printer settings or connection menu.
- Select the PT-112DC from the list of available Bluetooth devices.
- Follow any on-screen prompts to complete the pairing process.

Figure 6: Bluetooth Connection and App Interface
5.2. Connecting via USB (PC)
- Connect the printer to your computer using the provided USB cable.
- Install the necessary printer drivers on your computer. These are typically available on the manufacturer's website or included on a CD with the product.
- Once drivers are installed, the printer should appear in your computer's list of devices.
- You can now print labels using compatible software on your PC.

Figure 7: USB and Bluetooth Connectivity
5.3. Printing a Label
- Design your label using the PUTY Print app or compatible PC software.
- Ensure the label content, size, and orientation are correctly set.
- Select the PT-112DC printer from your device's print options.
- Initiate the print command. The printer will feed the label and print the content.
- Tear off the printed label using the serrated edge.

Figure 8: Printing in Progress
5.4. Adjusting Print Width
The printer allows for manual adjustment of print width to accommodate different label sizes, up to a maximum of 104mm.

Figure 9: Manual Print Width Adjustment
5.5. Product Demonstration Video
Video 1: Product demonstration including unboxing, paper loading, port details, and app-based printing.
6. Maintenance
6.1. Cleaning the Print Head
To ensure optimal print quality, regularly clean the thermal print head:
- Turn off the printer and disconnect it from power.
- Open the paper compartment cover.
- Gently wipe the print head with a cotton swab lightly moistened with isopropyl alcohol.
- Allow the print head to dry completely before closing the cover and powering on the printer.
6.2. Battery Care
- Avoid fully discharging the battery frequently.
- Store the printer in a cool, dry place if not used for extended periods.
- Charge the battery periodically to maintain its health.
7. Troubleshooting
7.1. Common Issues and Solutions
- Printer not turning on: Ensure the battery is charged. Connect the printer to the power adapter and try again.
- Poor print quality: Check if the label roll is loaded correctly. Clean the print head as described in the maintenance section. Ensure you are using compatible thermal labels.
- Printer not connecting via Bluetooth: Make sure Bluetooth is enabled on both the printer and your device. Ensure the printer is within range. Try unpairing and re-pairing the device.
- Printer not connecting via USB: Verify the USB cable is securely connected. Ensure the correct printer drivers are installed on your computer.
- Paper jam: Turn off the printer, open the paper compartment, carefully remove any jammed paper, and reload the roll correctly.
8. User Tips
- For best results, always use high-quality thermal paper or thermal synthetic labels.
- When printing shipping labels, ensure the label size is appropriate for the content to avoid cutting off important information. The PT-112DC supports 4x6 inch labels commonly used for shipping.
- Utilize the mobile app for quick and convenient label design and printing on the go.
- Keep the printer's firmware updated to ensure compatibility and access to new features.

Figure 10: Example Shipping Label Print
9. Warranty and Support
The PUTY PT-112DC printer comes with a 90-day warranty from the date of purchase. For technical support, troubleshooting assistance, or warranty claims, please contact the seller or manufacturer's customer service. Support options typically include call center and online technical support.