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.
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. jinka jk 721 cutting plotter driver
Happy cutting
Cutter moves but blade doesn't drop Fix: This isn't a driver issue. The JK-721 uses a simple switch. Increase the "Down Force" in your software to 120g+. Instead, install or Sure Cuts A Lot and
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. Go into cutter settings on the machine panel