Download the driver directly from www.wch.cn using the CH38X series package.
Avoid third-party aggregators. If your CH382L card was bought cheaply from an unknown brand, test the driver first with a loopback test (e.g., using debug to write/read parallel port pins) before trusting it with expensive equipment.
Good for: Legacy printers, industrial controls, software dongles, home-brew electronics.
Not good for: Anyone expecting plug-and-play on Windows without manual configuration.
The official driver for the WCH CH382L chipset (used for PCIe to parallel/serial port cards) is the
. This driver supports both the parallel (LPT) and serial (COM) ports provided by the chip. Official Download Links You can download the driver directly from the manufacturer, Nanjing Qinheng Microelectronics (WCH) CH38XDRV.ZIP (Official Download)
: This is the complete driver installation package and EEPROM configuration tool. CH38XDRV.EXE (Self-Installing Version)
: A one-key installation version often recommended in community support threads. Nanjing Qinheng Microelectronics Co., Ltd. Compatibility Information Supported Systems
: 11, 10, 8.1, 8, 7, Vista, XP, and Server (2003 through 2022).
: Supported via kernel drivers; generally works with Kernel 4.15 or above. Certifications : The drivers are Microsoft WHQL Certified
, ensuring better stability and compatibility with modern Windows security features. Nanjing Qinheng Microelectronics Co., Ltd. Installation Tips Extract the Files : If you download the wch ch382l parallel port driver download
version, extract all files to a folder before running the installer. Run as Administrator : Right-click the
file and select "Run as administrator" to ensure the driver has permission to modify system port settings. Check Device Manager
: After installation, your parallel port should appear under the "Ports (COM & LPT)" section in Windows Device Manager. Hardware Verification
: If the device is not recognized, ensure the card is firmly seated in the PCIe slot and scan for hardware changes in Device Manager. National Instruments Are you setting this up for a specific piece of hardware , like a legacy printer or a CNC machine? CH38XDRV.ZIP - Nanjing Qinheng Microelectronics Co., Ltd.
Introduction
The WCH CH382L is a popular parallel port controller chip used in various devices, including printers, scanners, and other peripherals. To ensure seamless communication between your device and computer, you need to install the correct driver software. In this article, we will guide you through the process of downloading and installing the WCH CH382L parallel port driver.
What is the WCH CH382L Parallel Port Driver?
The WCH CH382L parallel port driver is a software component that enables your computer to communicate with devices connected to the parallel port. The driver acts as a bridge between the operating system and the parallel port controller chip, allowing you to send and receive data to and from the device. Download the driver directly from www
Why Do I Need to Download the WCH CH382L Parallel Port Driver?
If you are experiencing issues with your parallel port device, such as:
then you may need to download and install the WCH CH382L parallel port driver. The driver update can resolve compatibility issues, fix bugs, and improve overall performance.
Downloading the WCH CH382L Parallel Port Driver
To download the WCH CH382L parallel port driver, follow these steps:
Installation Instructions
Once you have downloaded the driver, follow these steps to install it:
Troubleshooting Tips
If you encounter issues during driver installation or device operation, try:
By following these steps, you should be able to successfully download and install the WCH CH382L parallel port driver, ensuring reliable communication between your device and computer.
The CH382L is an integrated circuit manufactured by Nanjing Qinheng Microelectronics (WCH). It is a single-chip PCI Express to parallel interface controller. Key features include:
Cards using this chip often provide one or two DB-25 female parallel ports. The "L" variant typically indicates the lead-free, industrial temperature range version.
Cause: The assigned LPT address is non-standard.
Fix:
After reboot, check the following:
Solution:
Windows sometimes blocks these drivers because they lack a modern WHQL digital signature.
Do not download from random “driver download” sites (e.g., driverdr.com, soft32). They bundle adware.