Cutting offset / shapes are distorted Fix: Your driver is sending the wrong resolution. Go into cutter settings on the machine panel and set "Pulse" to 20 steps/mm . The Final Verdict Do not hunt for a "Jinka JK-721 driver.exe" file. Those are likely viruses.
Let’s do this the safe way. Option 1: The Universal Driver (Most Common Fix) 99% of JK-721 units do not require a specific "Jinka" driver. They are rebranded units using the SignCut or UniDrive architecture. jinka jk 721 cutting plotter driver
Need the original files? Check the CD that came with the plotter, or contact Jinka's AliExpress store support directly for a Google Drive link. Cutting offset / shapes are distorted Fix: Your
Instead, install or Sure Cuts A Lot and use the Generic HPGL driver inside the software. That will get your JK-721 running faster than any standalone driver ever will. Those are likely viruses