Fix: Print Unable ZC error on Brother printer

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Updated onOctober 4, 2023

updated onOctober 4, 2023

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An annoying issue frequently prevents users from printing files on theirBrothermachine. When attempting to initiate the printing process, theerror messagePrint Unable ZCwill appear on the display.

This is a clear indication that theprinterhas a mechanical issue. In most cases, it detects an irregular power supply due to the operating environment. This usually happens when the machine is connected to a special power source such as a generator, a power inverter, or an uninterruptible power supply.

In this guide, we’ll walk you through the steps to get rid of thePrint Unable ZCmessage error once and for all.

What can I do if getting the Print Unable ZC error?

1. Turn the power switch off and back on

If the machine’s display still readsPrint Unable ZCafter completing the steps, then continue to the next procedures.

2. Put a filter into the power supply

Since this issue is related to an irregular power supply, think of a way to get the noise out of it. For newbies, power-supply noise is a combination of unwanted periodic ripple and spikes with random noise from the devices or other external sources.

You could, therefore, use a noise filter on the power supply, just like you use filters to remove noise from a signal. To be more precise, a filter consisting of L2 and C3 is an ideal choice. The output voltage of the power supply is being then filtered by the LC filter.

High-frequency noise coming from both the switching frequency and the switching transition frequency is finally attenuated.

3. Install a voltage stabilizer to the power supply unit

As a final resort when there is an irregular power supply issue causing thePrint Unable ZCmessage error, you could try to install a voltage stabilizer to the power supply unit.

There are various types of voltage stabilizers that successfully keep the voltage of a circuit at a specified level, yet keep in mind that integrated circuit voltage stabilizers are among the most reliable choices.

Let us know in the comments section whether these steps and solutions worked for you. If nothing works, you can contact yourprinter’s manufacturer to find out more about how to resolve the issue.

Fix: Print Unable ZC error on Brother printer#

What can I do if getting the Print Unable ZC error?#

1. Turn the power switch off and back on#

2. Put a filter into the power supply#

3. Install a voltage stabilizer to the power supply unit#

Fix: Print Unable ZC error on Brother printer

What can I do if getting the Print Unable ZC error?

1. Turn the power switch off and back on

2. Put a filter into the power supply

3. Install a voltage stabilizer to the power supply unit