详情
BEFORE REPLACING NEW CARTRIDGE ,MAKE SURE THE USED ONE IS EMPTY.
1.UNSCREW THE TAIL CAP.
2.HOLD THE BARREL WITH WITH TIP POINTING UPWARDS,THEN REMOVE THE EMPTY CARTRIDGE CAREFULLY.
3.FIRMLY INSERT A NEW CARTRIDGE AND PUSH IT IN STRAIGHT.
4.SCREW THE TAIL CAP TIGHTLY.
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