After installation, you must match the COM port in Windows Device Manager with your cutting software.
: Most Seiki plotters use standard FTDI chips. You can download the latest Virtual COM Port (VCP) drivers directly from the FTDI Chip official website Seiki 870t Driver UPD Download
Operating systems update frequently. These changes can break the connection between your PC and the plotter. Installing the latest Seiki 870T UPD driver resolves several common hardware issues: After installation, you must match the COM port
Locate the downloaded file (e.g., CDM21236_Setup.exe for FTDI or CH341SER.EXE for WCH). Right-click the file and select . Click Extract or Install and follow the on-screen prompts. These changes can break the connection between your
To ensure the driver and software communicate effectively, use the following hardware settings in your software's "Cutter Setup" menu: Flow Control : Hardware (or Xon/Xoff) 4. Safety Warning for "Direct Download" Links