We are in the process of purchasing such a machine that marks panels with the use of an ink jet print head. I have contacts at two different companies that have quoted on the piece of equipment. Merix Loveland also uses a system that marks panels with an inkjet system. They have had good success with it (except when they have a mechanical failure). I had several concerns when I first began looking at these types of machines, the first was machine thruput we manufacture product on four different panel sizes 18x24,12x18,14x18,18x18. Also the lotcode location is part specific which requires alot of data download capability(similar to an NC file for a driller). From discussions I have had and from watching the machines operate it was determined that these types of machines could achieve a thruput of 200 panels/hour (with some mix assumptions). My second concern was ink resolution and adherence. We currently are creating an etched lotcode on all of our product and it has excellent durability. One concern you might have is the inks ability to adhere to the surface you are marking-- Soldermask is the surface typically marked upon with this type of equipment and the color of the soldermask will make a difference as to the contrast between the color of the mark and the color of the board. Most inkjet manufacturers recommend the use of a dark ink, because it adheres the best and has excellent durability through solder reflow. If you wish to get some more info call me at (5030 359-9300 ext 4508. Josh Moody Process Engineer Merix Corporation Forest Grove, Oregon