急求两个打印机问题的答案
1.怎么通过给打印口发指令控制打印机呢? 
 2.通过OPOS来操纵打印机,可现在有问题了,打印字符串的时候,它总是要等字符串占满一行才打印,这个问题我怎么解决?我想往后面加个换行符,可该怎么加呢? 
 打印图片的时候总是没反映。谁能给我个OPOS   打印的例子(全点的)。谢谢 
 3.打印机不能打中文,我想通过软字库的方式打印中文,该怎么做呢?   
 麻烦各位大侠了,讲解的详细一点。
------解决方案--------------------关注 UPing~
------解决方案--------------------opos学习中,请教一下你的microsoft opos for .net装在哪个操作系统下。我在2003下安装后,再装epson opos 系统提示不让装
------解决方案--------------------楼主说的我不懂呢
------解决方案--------------------microsoft opos for .net 
 慢的要命,建议不用它 
 5.2 Bitmap Printing Specified by the Bitmap Command 
 By using the DirectIO commands before using the SetBitmap method and the 
 PrintBitmap method, a bitmap command can be specified. 
 􀁺 Print a download bitmap 
 Dim RC As Long 
 Dim Data As String 
 Data= “” 
 RC=OPOSPOSPrinter1.DirectIO(PTR_DI_SETMAP_MODE, 
 PTR_DI_BMP_DOWNLOAD, 
 Data ) 
 If RC=OPOS_SUCCESS Then 
 RC = OPOSPOSPrinter1.PrintBitmap(PTR_S_RECEIPT,  "epson.bmp ", 
 OPOSPOSPrinter1.RecLineWidth, PTR_BM_CENTER) 
 If RC=OPOS_SUCCESS Then 
 `Success 
 Else 
 `Error 
 End If 
 Else 
 `Error 
 End If 
 Version 2.30 Sep. 2003 
 APPLICATION DEVELOPMENT GUIDE 
 POSPrinter (TM Series) 
 65 
 5.3 Print a Bitmap Registered on the NVRAM 
 EPSON OPOS ADK provides a tool, “TMFlogo” that enables to register a bitmap 
 image on the NVRAM in the EPSON TM series. For the usage, please refer to the 
  "EPSON OPOS ADK MANUAL User 's Manual (Installer/ SetupPOS/ TMUSB) ". 
 A bitmap image can be printed with a printer by using the DirectIO method. 
 Confirm a registered number of the bitmap image. 
 􀁺 Print the 3rd registered bitmap 
 Dim RC As Long 
 Dim Num As Long 
 Dim Data As String 
 Num=3 
 Data= CStr(PTR_BM_CENTER) 
 RC= OPOSPOSPrinter.DirectIO (PTR_DI_PRINT_FLASH_BITMAP, 
 Num , 
 Data ) 
 If RC=OPOS_SUCCESS Then 
 `Success 
 Else 
 `Error 
 End If
------解决方案--------------------https://www.epsonexpert.com/login 
 这个网站上有相关的Pdf电子书,你自己找找看,不过都是英文的
------解决方案--------------------帮顶