说明：  目前产生打印重码的情况，除了人为或者软件设置的原因外，还有一个无法避免的原因就是在打印机打印的过程中也偶尔会发生打印重复的现象。特别是在打印数据量大、标签纸用完、或者碳带使用完，更换介质的时候更容易发生，这种现象无法通过有效的手段避免，那么我们只能通过逐一扫描打印出来的条码标签进行全检，通过与中心数据库实时比对来判断打印的条码号是否有重码、漏码或错码的问题，如果一段发现及时停止打印，避免错误的条码标签流入生产线。
(At present, in addition to the human or software settings, there is also an unavoidable reason for the printing of duplicate codes, that is, the printing repetition occasionally occurs in the printing process of the printer. Especially when the printing data is large, the label paper is used up, or the carbon tape is used up, and the media is replaced, this phenomenon can not be avoided by effective means, so we can only scan the printed barcode labels one by one for full inspection, and judge whether the printed barcode number has the problem of duplicate code, missing code or wrong code through real-time comparison with the central database, If a section is found, stop printing in time to avoid the wrong barcode label flowing into the production line)