What to do when the Xiaomi Portable Photo Printer 1S cannot pick up photo paper during printing?

If the Xiaomi Portable Photo Printer 1S is not picking up paper during printing, please try the following troubleshooting steps:
1. Ensure that the photo paper is installed correctly. Double-check that the photo paper is inserted in the right direction and is properly inserted. Incorrect installation can prevent the printer from grabbing the paper;
2. Ensure that there are no more than 10 sheets of photo paper in the printer at a time. Overloading the paper slot can interfere with paper picking; 
3. Check for any deformation or damage to the photo paper. Bent, creased, or curled paper cannot be picked up properly. Make sure the paper is flat and in good condition;
4. Contact after-sales service to check whether there is a printer malfunction.