1. Introduction
The Bisofice Z58-IV is a compact 58mm thermal receipt printer designed for various business environments. It offers high-speed printing, clear output, and flexible connectivity options including Bluetooth and USB. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance of your printer.

Figure 1.1: Bisofice Z58-IV Thermal Receipt Printer in a retail setting.
2. Safety Information
- Ensure the printer is placed on a stable, flat surface.
- Do not expose the printer to water, moisture, or extreme temperatures.
- Use only the provided power adapter.
- Avoid touching the print head immediately after printing, as it may be hot.
- Keep out of reach of children.
- Disconnect power before cleaning or performing maintenance.
3. Package Contents
Verify that all items are present in the package:
- Bisofice Z58-IV Thermal Receipt Printer
- Power Adapter
- USB Cable
- Thermal Paper Roll
- User Manual (this document)
4. Product Overview
Familiarize yourself with the printer's components and ports:

Figure 4.1: Front and Rear Panel Details.
- Switch Button: Powers the printer On/Off.
- Cover Open Button: Releases the top cover for paper roll installation.
- Indicator Light: Displays printer status (e.g., power, error, paper out).
- Feed Button: Manually feeds paper.
- USB Port: Connects the printer to a computer via USB cable.
- CASH Port: Connects to a cash drawer.
- Power Port: Connects to the power adapter.
5. Setup
5.1. Paper Roll Installation
- Press the Cover Open Button to open the top cover.
- Insert a 58mm thermal paper roll into the compartment, ensuring the paper feeds from the bottom and the leading edge extends slightly out of the printer.
- Close the top cover firmly until it clicks into place.

Figure 5.1: Installing the thermal paper roll.
5.2. Power Connection
Connect the power adapter to the printer's Power Port and then plug the adapter into a power outlet.
5.3. Connecting to a Computer (USB)
The printer supports USB connection for Windows and Linux operating systems. Note: This printer is not compatible with iOS or Mac OS via USB.
- Connect the printer to your computer using the provided USB cable.
- Turn on the printer.
- Download and install the appropriate printer driver for your operating system (Windows/Linux) from the Bisofice official website or the provided installation media.
- Follow the on-screen instructions to complete the driver installation.
5.4. Connecting to a Mobile Device (Bluetooth)
The printer supports Bluetooth connection for Android smartphones. Note: This printer is not compatible with iOS via Bluetooth.
- Ensure the printer is powered on.
- Enable Bluetooth on your Android smartphone.
- Search for available Bluetooth devices and select the printer (usually named 'Z58-IV' or similar).
- Enter the pairing PIN if prompted (common PINs are '0000' or '1234').
- Once paired, you can use compatible Android applications (e.g., Loyverse, iREAP, CasierStock, Kyte) to print.

Figure 5.2: Connectivity options: USB to computer and Bluetooth to mobile phone.
6. Operating Instructions
6.1. Printing a Receipt
After successful setup and connection, you can initiate printing from your application or system. The printer supports ESC/POS commands for various printing functions.

Figure 6.1: High-speed printing at 90mm/s.
6.2. Manual Paper Feed
Press the Feed Button briefly to advance the paper by one line. Press and hold the Feed Button to continuously feed paper.
7. Maintenance
7.1. Cleaning the Print Head
To maintain print quality, clean the thermal print head regularly (e.g., once a month or after every 10 rolls of paper). Use a cotton swab lightly moistened with isopropyl alcohol. Gently wipe the print head surface. Allow it to dry completely before use.
7.2. Exterior Cleaning
Wipe the exterior of the printer with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
7.3. Paper Roll Replacement
Refer to Section 5.1 for instructions on replacing the thermal paper roll when it runs out.
8. Troubleshooting
- Printer not powering on: Check the power adapter connection and ensure the power outlet is functional.
- Printer not printing:
- Ensure the paper roll is correctly installed and not empty.
- Check the connection (USB or Bluetooth) to your device.
- Verify that the correct printer driver is installed and selected on your computer.
- For Bluetooth, ensure the printer is paired and connected to your Android device.
- Poor print quality: Clean the print head as described in Section 7.1. Ensure you are using high-quality thermal paper.
- Compatibility Issues:
- The printer is not compatible with iOS and Mac OS.
- The printer is not compatible with POS systems such as Square, Hellocash, and Zettle.
- For Android, ensure your application supports this printer model.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | Bisofice |
| Model Name | Z58-IV |
| Connectivity Technology | Bluetooth, USB |
| Printing Technology | Thermal |
| Color | Black |
| Printer Output | Monochromatic |
| Max Print Speed (Black & White) | 90 mm/s |
| Max Paper Size Supported | 58mm |
| Product Dimensions | 18P x 10.5L x 13H cm |
| Included Components | Thermal Paper |
| Additional Printer Functions | Print Only |
10. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Bisofice website. Keep your purchase receipt as proof of purchase for warranty claims.
