The K / B test option will pop up automatically in the test program, 1 US 2 UK. According to the country on the work order, select the K / B model for printing. After the K / b window pops up, brush K / b from left to right<br>★ a. the tester is strictly required to brush K / b from left to right in sequence, and it is not allowed to skip, brush in the opposite direction and brush side by side<br>
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