What could be the issue if the Epson 1390 printer is not showing a power light, but the ink light is slowly blinking, and there is no head movement?

The symptoms you described could indicate a few possible issues with your Epson 1390 printer:

1. Power supply issue: The absence of the power light indicates that the printer is not receiving power, which could be caused by a malfunctioning power supply or a faulty power cable. Try unplugging and replugging the power cable, and make sure it is securely connected to the printer and the power outlet.
2. Paper jam: A paper jam can cause the printer to stop working and the ink light to blink slowly. Check for any paper stuck in the printer and remove it carefully.
3. Waste ink pad issue: If the waste ink pad is full or nearing its capacity, the printer may stop working and the ink light may blink slowly. You can try resetting the waste ink counter by following the instructions provided by Epson, but if the waste ink pad is full, it may need to be replaced or cleaned by a technician.
4. Malfunctioning print head: If the print head is not functioning properly, it may prevent the printer from turning on and the head from moving. This could be caused by a clogged or damaged print head, which may need to be replaced or cleaned by a technician.

In any case, if the issue persists after trying the above solutions, it's best to contact Epson customer support or a qualified technician for further assistance.