What are the reasons why handheld inkjet printers do not spray codes?

2025-12-08 Click： 2

The handheld inkjet printer does not print codes, and the core reasons are concentrated in three categories: abnormal ink supply, nozzle blockage/malfunction, and equipment setting/operation problems. Specific troubleshooting can be carried out according to the following dimensions:

1. Ink supply related issues

-The ink box/ink bag is empty or not installed properly, resulting in no ink entering the spray chamber.

-Abnormal ink viscosity (such as viscosity caused by low temperature, ink expiration and deterioration), unable to flow normally.

-The ink supply pipeline is blocked or leaking, interrupting ink transfer.

2. Blockage or malfunction of the nozzle

-The nozzle has not been used for a long time, and residual ink has dried up and blocked the nozzle (the most common reason).

-The nozzle is affected by physical collision, wear, or internal component damage, making it unable to dispense ink normally.

-The nozzle protection cover has not been removed, or there are foreign objects (such as dust, ink stains) blocking the nozzle.

3. Equipment setup and operation issues

-The coding function is not enabled (such as not pressing the "printing" button, accidentally touching pause/standby mode).

-The coding distance is too far (beyond the effective printing range of the equipment, usually requiring 1-3mm close to the object being sprayed).

-Insufficient battery power or poor battery contact, unstable device power supply, unable to drive the printing module.

-Parameter settings are incorrect (such as printing speed, character size settings are unreasonable, or "blank printing" mode is selected).

4. Other hardware failures

-Internal components such as the motherboard and printing module have malfunctioned, causing the device to be unable to issue printing commands.

-Loose or poor contact of the connecting wire (such as detachment of the connecting wire between the nozzle and the host).

Product FAQ

1.What courier do you use for shipping？

We ship via UPS Global Express
2.Are you factory or trading company?

We are a specialized manufacturer of inkjet printer and other related equipment in China, all products are manufactured by ourselves, and we have our own R & D team to serve you.
3.ls there any warranty?

Yes, We provide 12 Months Warranty.
4.How can I choose the right machine?

You can contact our customer service and they will recommend the most suitable one for your needs
5.What can be printed on and in what size？

The machine can print on paper boxes, plastic, metal, glass, wood, cloth and other materials; Machines are available in height 1.27 cm, 2.54 cm, 5 cm, 10 cm or larger sizes
6.How many languages are there and can I add my own LOGO？

The machine supports English/Arabic/Russian/French/Korean/Vietnamese/Japanese/Italian/Spanish/Bengali/Dutch/Portuguese/German/Greek and other languages；We can design your brand logo to customize the machine
7.What I can print ？how many colors？

You can print date, text, logo, variable data, batch number, QR code, serial number and other content. Red, yellow, blue, green, black, white and other colors are available.