代码 39 条形码字体中 'space' 字符的替代字符是什么？
What is the substitute for the 'space' character in code 39 barcode font?
我正在为 MFG/Pro ERP 编写定制。我的程序有几个一维条形码，它们已打印并被正确读取。
但是，只要在要加条码的文本中有一个space，条码在打印的条码中就有一个hole/space。
我需要扫描仪读取 space 字符。
我试过各种替代字符都无济于事，例如编码 "Test 123"，我试过：
underscore ( _ ) => "Test_123"
equal ( = ) => "Test=123"
comma ( , ) => "Test,123"
exclamation ( ! )=> "Test!123"
tilde ( ~ ) => "Test~123"
chr(32) => "Test" + chr(32) + "123"
chr(194) => "Test" + chr(194) + "123"
我的问题是：
代码 39 space 字符还有哪些替代字符？
如何找到我的打印机使用了哪个字符，我们使用的是 Ricoh MP C4504。
更新：
我测试了所有大写字符 (REV B) 的条形码，这是输出。
39码字母表如下："0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%*"
space 字符是上述字符串中“.”之间的第 39 个字符。和“$”。符号系统中的字符没有直接的 ASCII 转换。如果您无法在 Code 39 符号体系中生成 space 符号，那是因为您使用的任何软件都在解析您传递给打印机的字符串。
下面是一个代码 39 条形码，上面写着 'TEST 123'。
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAAAAAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajkDAr7LFAwAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAizUEAhrxcbgAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAA/wAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAASTUCAqHeHtMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATVICAxOyzrMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAizUEAhrxcbgAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAAAAAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajkDAr7LFAwAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAbkoDA3iPVH4AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATVICAxOyzrMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAAAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajEDAm49ReYAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/ASL/AADeAAAA/gAAAAIAAAD+AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAh6QEAZKdo54AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAAAAAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajkDAr7LFAwAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAak4DA7VAmk0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAA/wAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAASTUCAqHeHtMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAak4DA7VAmk0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAASVICA62zYxMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATVICAxOyzrMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAAAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajEDAm49ReYAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAak4DA7VAmk0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAAAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajEDAm49ReYAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/ASL/AADeAAAA/gAAAAIAAAD+AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAh6QEAZKdo54AAAAASUVORK5CYII=" width="10" height="60">
Code 39 不支持小写字符，因此您的示例要么被转换为大写，要么您使用的软件支持 Full ASCII Code 39。根据您提供的示例符号的长度，这不可能是案件。事实上，问题似乎出在您在测试字符串中使用小写字母。似乎只有起始字符和 'T' 被转换为条形码。 'est' 正在生成您正在经历的白色space。
我删除了符号段之间的 space，条形码扫描为 "REVB"，因此软件肯定会创建白色 space，根据下图。
我们需要了解您的 ERP 和打印机驱动程序之间的软件层。输入字段和打印头之间的某些东西真的把它弄脏了。条形码是由打印机驱动程序、附加组件、字体还是 ERP 本身提供的？
我终于找到了用于编码条形码文本中的space的ASCII字符。为此，我必须使用 ASCII 字符“44”。
为了达到这个解决方案，我不得不编写一个循环遍历 1 到 128 的小程序，打印数字、它的 ASCII 代码和它的条形码。后来我不得不扫描每个条形码以找到正确的 space 编码字符。
我正在为 MFG/Pro ERP 编写定制。我的程序有几个一维条形码，它们已打印并被正确读取。
但是，只要在要加条码的文本中有一个space，条码在打印的条码中就有一个hole/space。
我需要扫描仪读取 space 字符。
我试过各种替代字符都无济于事，例如编码 "Test 123"，我试过：
underscore ( _ ) => "Test_123"
equal ( = ) => "Test=123"
comma ( , ) => "Test,123"
exclamation ( ! )=> "Test!123"
tilde ( ~ ) => "Test~123"
chr(32) => "Test" + chr(32) + "123"
chr(194) => "Test" + chr(194) + "123"
我的问题是：
代码 39 space 字符还有哪些替代字符？
如何找到我的打印机使用了哪个字符，我们使用的是 Ricoh MP C4504。
更新：
我测试了所有大写字符 (REV B) 的条形码，这是输出。
39码字母表如下："0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%*"
space 字符是上述字符串中“.”之间的第 39 个字符。和“$”。符号系统中的字符没有直接的 ASCII 转换。如果您无法在 Code 39 符号体系中生成 space 符号，那是因为您使用的任何软件都在解析您传递给打印机的字符串。
下面是一个代码 39 条形码，上面写着 'TEST 123'。
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAAAAAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajkDAr7LFAwAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAizUEAhrxcbgAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAA/wAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAASTUCAqHeHtMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATVICAxOyzrMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAizUEAhrxcbgAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAAAAAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajkDAr7LFAwAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAbkoDA3iPVH4AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATVICAxOyzrMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAAAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajEDAm49ReYAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/ASL/AADeAAAA/gAAAAIAAAD+AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAh6QEAZKdo54AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAAAAAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajkDAr7LFAwAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAAAAAAAAAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATUoCA+Jw8kAAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAak4DA7VAmk0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAA/wAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAASTUCAqHeHtMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAak4DA7VAmk0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAASVICA62zYxMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAATVICAxOyzrMAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAAAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajEDAm49ReYAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAak4DA7VAmk0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAAAAAAEAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAajEDAm49ReYAAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAABAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARVICA/z3WM0AAAAASUVORK5CYII=" width="10" height="60"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/ASL/AADeAAAA/gAAAAIAAAD+AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAh6QEAZKdo54AAAAASUVORK5CYII=" width="10" height="60">
Code 39 不支持小写字符，因此您的示例要么被转换为大写，要么您使用的软件支持 Full ASCII Code 39。根据您提供的示例符号的长度，这不可能是案件。事实上，问题似乎出在您在测试字符串中使用小写字母。似乎只有起始字符和 'T' 被转换为条形码。 'est' 正在生成您正在经历的白色space。
我删除了符号段之间的 space，条形码扫描为 "REVB"，因此软件肯定会创建白色 space，根据下图。
我们需要了解您的 ERP 和打印机驱动程序之间的软件层。输入字段和打印头之间的某些东西真的把它弄脏了。条形码是由打印机驱动程序、附加组件、字体还是 ERP 本身提供的？
我终于找到了用于编码条形码文本中的space的ASCII字符。为此，我必须使用 ASCII 字符“44”。
为了达到这个解决方案，我不得不编写一个循环遍历 1 到 128 的小程序，打印数字、它的 ASCII 代码和它的条形码。后来我不得不扫描每个条形码以找到正确的 space 编码字符。