serial-parityDL3860

Fujitsu DL3860 serial-parity error: Connection issues

The Fujitsu DL3860 serial-parity error signals a failed communication protocol between the machine and the host. If parity bits do not align, the printer cannot process data packets. This error is exclusive to the RS-232 interface.

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Common causes

  • 1Mismatched parity bit configuration.
  • 2Damaged or unshielded serial cables.
  • 3EMI interference.
  • 4Incompatible baud rate settings.

Solutions

Quick diagnosis

Why is there a serial-parity error on Fujitsu DL3860? Usually, it's a conflict between the printer's CMOS settings and the Windows Driver parameters.

Step-by-step solution

  1. Enter the Setup menu on the front panel.
  2. Find the Serial interface configuration.
  3. Match the Parity setting with your software (e.g., Even, Odd, None).
  4. Adjust baud rate if data drops occur.

Prevention and maintenance

Use shielded cables. Document your current parameters to avoid troubleshooting in the future.

When to call a technician

If settings match but the error persists, the serial interface port chip might be failed.

Ficha técnica del equipo

  • Technology: 24-pin Impact
  • Speed: 600 cps
  • Connectivity: Serial, Parallel, USB
  • Feed: 1 original + 6 copies
  • Consumable: Genuine Nylon ribbon
  • Recommended use: Retail and Logistics
  • Drivers / firmware official

Steps to follow

  1. 1

    Check cable

    Ensure the serial cable is suitable for your connection (null-modem).

  2. 2

    Access menu

    Open the setup menu on the printer's display.

  3. 3

    Sync settings

    Match the baud rate, parity, and stop bits with your host PC settings.

Frequently asked questions

The error occurs when the printer and the computer have mismatched parity, baud rate, or stop bit settings.

Yes, serial-parity errors are only relevant to RS-232 connections. USB is plug-and-play.

High-durability nylon ribbons designed for the Fujitsu DL series.

Yes, keep your settings saved unless a firmware reset occurs.