Powerful hotel intelligent door lock business card printing system, why can't the card come out sometimes?

This question may be whether your credit card device is a bit out of order, and how long has it been used? If it takes a long time, it may be caused by the insensitivity of the credit card module. You can check and rule out first. If it still doesn't work, try to reconfigure the business card printing program. Maybe it's a packet loss or something.