Now many electronic part manufacture using continuous inkjet to give each product an ID
The data Min height 0.7mm 

Substrates 
Electronic parts, battery, circuit board, LDC/LED screen, plastic parts etc.

Codes：
changeable numbers, batch numbers, logos, barcodes etc.

Machine selection：
suggest micro printer 8200M/8300M/8400M  or white ink type 8200W/8300N  

Highlights：
♦ Low maintenance.  Low cost
♦ Printhead Unique constant temperture heating
   technology, working temperture ±45℃
♦ Steady and reliable ink system
♦ Simple operation via internatonal keyboards.
   One key upgrade system
♦ Clean itself automatically
♦ Powerfull software. USB storage device
♦ Complete airproof printhead
♦ Nozzle cleaning automatically when stopping machine
♦ Cabinet is built in stainless steel. Dust/humidity protection rating: IP55
♦ Ink suitable for a wide range of application