Invoice printer is a very important office equipment, which is mainly used to print invoices when selling goods or providing services. However, when using the invoice printer, there may be various abnormal situations, such as the invoice printer not working. The following are possible reasons why the invoice printer does not work.

1. power failure: the invoice printer must be powered on to work normally. If the power supply fails, the invoice printer will not work normally. In this case, it may be necessary to replace the power supply or find a professional technician for maintenance.

2. Connection failure: the invoice printer needs to be connected to a computer or other equipment to work. If there is a connection failure, the invoice printer will not work properly. In this case, it is necessary to check whether the connecting cable is connected correctly or replace the faulty connecting cable.

3. Lack of print driver: The invoice printer needs to be connected to a computer and installed with the corresponding driver. If the driver is missing, the invoice printer will not work properly. In this case, you need to download and install the correct driver.

4. Print head failure: The print head of the invoice printer is a very important part. If it fails, the printing quality will be affected, and even the invoice printer will not work. In this case, it is necessary to replace the print head or find professional technicians to repair it.

5. Internal failure of the printer: Internal failure is inevitable when the invoice printer is in use. Such as movement aging, internal component failure, etc. In this case, it is necessary to find professional and technical personnel for overhaul and maintenance.

6. Paper jam: The invoice printer needs to print on paper. If there is a paper jam, the invoice printer will not work. In this case, you need to turn on the invoice printer, clear the paper jam and reload the paper.

7. Lack of ink cartridges or consumables: The ink cartridges or other consumables of the invoice printer need to be replaced in time after use, otherwise the invoice printer will not work. In this case, it is necessary to replace ink cartridges or other consumables.

To sum up, there are many reasons why the invoice printer doesn't work, from power failure to paper jam to lack of ink cartridges or other consumables, which may lead to the invoice printer not working. The problem that the invoice printer doesn't work needs serious investigation, find out the cause and solve it in time.