Where does the phrase "this printer has just finished" come from? What do you mean?

"It's only after printing" comes from Meng Qian's pen talk by Shen Kuo, a scientist in the Northern Song Dynasty.

I often make two iron plates, one printed and the other printed by myself. Only when this printer is finished, the second edition is already available, which is more interoperable and can be used instantly.

"The printer has not finished printing" means that the printing of this version has just been completed.