ErrorCodeDoctor
Brother · Printer (Laser)

Brother Printer (Laser) Comm. Error error code

Difficulty: Easy · Cost: $0 · Duration: 5m

The Comm. Error message on your Brother laser printer means poor telephone line quality caused a fax communication error. Send the fax again or connect the machine to a different telephone line. If the problem continues contact your telephone company and ask them to check the line quality. If using a VoIP system try changing the Compatibility setting to Basic (for VoIP).

Common causes

  • Poor telephone line quality caused the fax connection to drop or fail

How to fix it

  1. 1

    Try sending or receiving the fax again

  2. 2

    Connect the machine to a different telephone line if available

  3. 3

    If the problem continues call your telephone company to check the line quality

  4. 4

    If using a VoIP system change the Compatibility setting to Basic (for VoIP)

Related Brother Printer (Laser) error codes

1

2-sided Disabled / 2-sided Disable

The back cover or 2-sided tray is not properly closed or installed

easy
2

Access Denied

The function you are trying to use is restricted by Secure Function Lock

medium
3

Cartridge Error / Put the Toner Cartridge back in

The toner cartridge is not installed correctly in the drum unit

easy
4

Cooling Down / Wait for a while

The machine's interior is too hot and is cooling down — printing will resume automatically

easy

Comm. Error error — frequently asked questions

What does the Comm. Error error mean on a Brother printer (laser)?

A poor telephone line caused a fax communication error

What causes the Comm. Error error?

The Comm. Error error is usually caused by: Poor telephone line quality caused the fax connection to drop or fail.

Can I fix the Comm. Error error myself?

Yes — this is rated an easy fix that most people can do themselves, typically in 5m.

How much does it cost to fix the Comm. Error error?

Fixing the Comm. Error error on a Brother printer (laser) typically costs $0, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my printer (laser) with the Comm. Error error?

In most cases yes, but it's best to address the Comm. Error error soon — see the fix steps below to resolve it.