The indicator of Deli heat transfer label printer is abnormal

Abnormal heat transfer label printer indicator light may be caused by a variety of reasons, the following are some common causes of failure and the corresponding solutions:

First, the cause of the failure

Print head problem:

Print head overheating: When the temperature of the print head is too high, the print machine will automatically stop working and light the fault light.

Print head damage or dirty: print head damage or accumulation of paper scraps, oil, etc., will affect the print quality and cause the fault light.

Label paper or carbon tape problems:

Improper selection of label paper or carbon tape: Incompatible or poor quality label paper or carbon tape is used, causing the printer to not work properly.

Incorrect label or carbon tape installation: If the label is not properly installed in the printer, or the carbon tape is not correctly wound, the indicator may be abnormal.

Sensor failure:

Sensor does not detect paper or carbon tape: The sensor is responsible for detecting the status of the label paper and carbon tape. If the sensor fails or does not correctly detect paper or carbon tape, the printer will report an error.

Power supply problem:

Poor or damaged power cable contact: A poor or damaged power cable connection may cause the printer to fail to obtain a stable power supply, resulting in a fault.

Other environmental issues:

Poor operating environment: the printer needs to work in a relatively stable environment, if the environment is too cold, wet or direct sunlight, it may affect the normal operation of the printer.

Second, the solution

Check the print head:

If the print head overheats, wait a while for it to cool naturally before attempting to print.

Clean the print head: Gently wipe the surface of the print head with cleaning paper or cleaning solution to remove paper scraps and oil. Do not wash directly with water.

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

Check label paper and carbon tape:

Ensure that the label paper and carbon tape used are compatible with the printer and meet quality requirements.

Install labels and carbon strips correctly to ensure they are not stuck or misaligned.

Check the sensor:

Clean the sensor: Check whether the sensor is blocked by foreign objects such as paper scraps and dust. If yes, clean it up.

Retest paper: Retest paper according to the method in the printer manual to ensure that the sensor can correctly sense the paper or carbon strip.

Check the power supply:

Ensure that the power cable is securely connected and not damaged.

If the power cable is faulty, replace it with a new one.

Improve the operating environment:

Place the printer in a dry, stable environment to avoid direct sunlight and contact with substances such as water.

To restart the printer:

Sometimes a simple restart operation can resolve some temporary faults.

Contact after-sales service:

If the above methods can not solve the problem, it is recommended to contact Deli customer service or after-sales service for further overhaul and repair.

Please note that the above workaround is for reference only, and the specific operation may vary depending on the printer model and fault situation. Before any repair operation, be sure to refer to the printer's user manual or contact Deli customer service for professional guidance.