Qirui thermal printer common problems

Qirui thermal printer in the use of the process may encounter some common problems, the following are some common problems and their treatment:

First, printing problems

The printer cannot print.

Possible causes:

Printer paper is not installed or used up.

The power supply voltage exceeds the specified range.

The thermal print head cable is not connected properly or the print head is damaged.

An internal printer fault occurs, for example, a PC board fault.

Treatment method:

Reinstall or replace the printer paper.

Check whether the power supply voltage is stable and adjust it to the specified range.

Check and reconnect thermal print head cables, or replace damaged print heads.

If the above methods are ineffective, consider replacing the PC board or contacting after-sales maintenance.

Poor print quality (blurry, missing lines, etc.)

Possible causes:

Print head dirty.

The printing paper or carbon tape used is of poor quality.

Print head aged or damaged.

Improper printing Settings (e.g. temperature, speed, etc.).

Treatment method:

Clean the print head and gently wipe it with an alcohol swab.

Replace high-quality printer paper and carbon tape.

If the print head is aging or seriously damaged, replace it with a new print head.

Adjust print Settings to ensure that parameters such as temperature and speed are appropriate for the current print task.

Two, the paper problem

Paper jam

Possible causes:

The paper is too thick or too thin.

Paper is not installed correctly or piled up too much.

There is a foreign object or dust inside the printer.

Treatment method:

Replace the paper suitable for the printer size.

Ensure that paper is properly installed and reduces the amount of paper buildup.

Open the printer to clean the internal foreign matter and dust.

Paper cutting is not accurate

Possible causes:

The printer paper is blocked.

The paper cutter motor is faulty.

The sensor is faulty.

Treatment method:

Clean up the blocked printer paper and find out the cause of the blockage.

Check and replace the paper cutter motor.

Check whether the sensor is working properly and replace it if necessary.

Third, equipment connection and communication problems

Unable to connect to computer or mobile phone

Possible causes:

The cable is loose or damaged.

Unstable Bluetooth connection (for wireless printers).

The printer driver is not installed correctly or is corrupt.

Treatment method:

Check and reconnect the cable to ensure that the connection is stable.

Try repairing your Bluetooth device (for a wireless printer).

Reinstall or update the printer driver.

4. Other common problems

The printer cannot be started.

Possible causes:

The power cable is not connected or the power socket is disconnected.

Low battery power (for portable printers).

The printer has an internal fault.

Treatment method:

Check whether the power cable is properly connected and the power socket is powered on.

Charge or replace the battery for your portable printer.

If the above methods are ineffective, consider contacting after-sales maintenance.

Error code prompt

Treatment method:

Follow the error code prompts to find the specific cause. For example, the error code 1E/E1 usually indicates a lack of paper, and it is necessary to check whether the paper is exhausted and add it in time; Error code 2E/E2 indicates a paper jam. Check the paper feed channel for foreign objects and clean it. Error code E3 indicates that the print head is overheating. Check whether the heat sink and temperature sensor are working properly.

If you cannot resolve the error code yourself, consult the printer's manual or contact after-sales technical support for help.

To sum up, the common problems of Qirui thermal printer need to be investigated and solved according to the specific situation. During use, it is recommended to periodically check the components and Settings of the printer to ensure that the printer is in good working condition. At the same time, following the printer's operating instructions and maintenance guidelines is also an important measure to avoid common problems.