What does it mean that there is a shortage of paper in the UnionPay credit card machine?

UnionPayThere are three possibilities for the credit card machine to run out of paper:

1. There is no printer paper inside.

Try a new roll of paper in it;

2. When putting the paper, there is no section leaking outside;

3. The machine is damp or the motherboard is damaged, the system cannot be detected or the system program is wrong. In this case, you need to contact the service provider or salesman to report for repair.

If the system pops up a "printer out of paper" prompt when performing a print test or printing target document operation, you can eliminate this prompt as long as you insert the printing paper correctly; But in fact, you may often encounter a problem where the printer is out of paper despite the fact that the printer is running out of paper when the paper is clearly placed in the paper slot.

There are several main reasons:

1. The printer connection cable or the parallel port of the computer is damaged, resulting in a lack of paper prompt. Workaround: Replace cables or parallel ports for troubleshooting.

2. Drivers.

Errors, and sometimes corrupted printer drivers can also cause this phenomenon. Workaround: You can reinstall the printer driver or upgrade the driver.

3. The printing paper sensor is polluted, which is the photoelectric sensor in the printer's paper feeding system.

Damage or the surface is covered with dust, preventing the paper feed system from accurately transmitting the paper presence signal to the printer control system. Solution: Open the case of the printer, then carefully disassemble the paper roller at the paper feeding system, check whether there is dust on the surface of the photoelectric sensor, if there is dust, you can use soft cotton gauze to gently wipe the surface dust clean.

Then try to print to see if you can eliminate the false out of paper prompt, if the printer can automatically eliminate the false out of paper fault at this time, then it proves that the fault is caused by dust; If this method cannot be solved, it is likely that the photoelectric sensor in the printer's paper feeding system is damaged, and professional maintenance personnel need to be hired to solve the fault.

There are two possibilities for a paper shortage:

1. It is true that there is no printing paper in it, so try to change it to a new roll of paper and put it in;

2. When putting the paper, there is no section of paper that leaks outside, that is, there is no section of paper outside after the box is covered;

3. If the machine is damp or the motherboard is damaged, the system cannot be detected or the system program is wrong, you need to contact the service provider or salesman for repair;

It's better to take a screenshot and I'll look it clearly.

There is paper in the POS machine, which shows what the situation is when the paper is missing.

There is paper on the empty side of the POS machine, what is the situation of showing the lack of paper? POS machine is an electronic payment terminal widely used in commercial occasions, which usually requires the use of thermal paper to print transaction vouchers, invoices, etc. If there is paper in the POS machine, but it shows that there is no paper, it is due to the following reasons:

1.Incorrect paper installation: Usually the paper is not installed correctly or is not installed securely, resulting in the machine not being able to perceive the presence of paper.

2.Paper jammed: During use, the paper will get stuck or curled, causing the machine to not recognize the paper.

At this point, you can try to clean the inside of the machine, find the jammed paper and remove it. 3.Poor paper quality:

Some low-quality paper can cause the POS machine to not be able to detect the paper, or there will be problems such as paper jams when printing. Make blind with high-quality thermal paper to ensure the normal operation of the POS machine. 4.

Sensor failure: If the sensor of the POS machine is malfunctioning, it will not be able to detect the presence of paper correctly, resulting in a paper shortage display. In this case, contact the after-sales service or repair center of the POS machine for overhaul and repair.

In short, if there is paper in the POS machine, but it shows that there is a shortage of paper, first check whether the paper is installed correctly, whether it is stuck, etc., and use high-quality thermal paper. If the problem persists, contact the after-sales service or repair center of the POS machine for overhaul and repair.

Common problems and simple troubleshooting methods for POS machine to accept bank cards 1. When POS is used, the dialing is always unsuccessful, and POS displays "busy line" or "no dialing tone" or "wiring is not connected": a) Please check whether the ** line is connected and whether it is plugged into the "line" or **line port; b) Check whether the ** line is normal, you can unplug the ** socket connected to the POS, and change to a ** machine to dial whether it is normal (the extension needs to try to dial the external line is normal). 2. When POS makes a transaction, it shows "transaction successful", but the printer does not type out the bill (this transaction cannot be processed as a normal successful transaction):

a) Please check whether the printer is short of paper or jammed, if the paper is jammed, because the power is cut off first, open the printer cover, take out the jammed paper and then deal with it; b) Please check whether the connection between the host and the printer is normal, and whether the power supply of the printer is normal. 3. After the bank card is swiped on the POS, the POS has no response: a) Check whether the direction of the bank card is correct; b) Ask if the bank card is demagnetized.

4. The PINpad display is abnormal: Please check whether the PINpad connection is connected properly, if it is connected and still the display is not normal, please contact the corresponding acquirer to replace the PINpad. 5. "Please put back the landline" appears, but the mobile phone has been put back to the landline (split pos machine):

a) Check whether the power supply of the landline is plugged in; b) Whether there is a foreign object such as paper isolating the charging tab of the mobile phone and the landline; c) If the display time is too long, please contact the corresponding acquirer to replace the POS. 6. There is a lack of needles when POS prints the purchase documents: what a tender and stupid.

What to do if the printer paper is stuck, teach you a few tricks, and you will learn it as soon as you learn it.