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Evolis（爱丽斯）专业提供各类塑料证卡打印机，可打印并个性化设计各类证卡：学生证，员工卡及访客卡，出入证，会员积分卡，银行卡，交通卡，俱乐部会员卡，驾驶证，身份证，选民证，以及医疗卡等。卡片的个性化既可体现在图像印刷（四色照片打印）上，亦可体现在数据编码图像（磁道，接触式及/或非接触式智能卡）的个性化设计。
首页 > 指导及技术支持 > 产品技术支持 > Securion > 常见问题解答（英文） > Printing / Print head > Horizontal lines
I have one or multiple horizontal white lines on my printed cards. What can I do?
White lines on the printed cards mean that the print head is unable to heat the ribbon in this zone: the ink cannot be diffused/applied correctly onto the card surface. This issue may arise from a dirty or faulty print head.
If cleaning of the print head does not clear this defect, please contact your Evolis reseller/distributor.
