Brief analysis of several key technical points of traditional bank bill printing system

      1998 year -2010 The year is a period of rising enterprise informatization , Especially in the application of financial system , There is financial software 、ERP System , Here I will talk about the bill printing system of enterprise cashier bank, which was very popular in those days .
      This system includes bank transfer 、 cash 、 Telegraphic transfer 、 Cash payment note 、 Statements 、 Bill of exchange application form 、 Settlement bills, purchase orders and other standard bills , Equipped with a laser printer （ It can also be a stylus printer ）. Usually used VB、C# Of winform Development , The development code is simple , Efficient , Can pass access Small databases do data storage . I remember that in those days, small software companies often sent some business personnel to the enterprise to promote ！ Every financial staff may have experienced the scene of demonstrating and debugging printers .
      Here I will talk about my development experience ： The first stage ： Started using excel Template printing , The case conversion function is not provided by the system , It's a difficulty , To give up ！ Even if it is solved, it is inconvenient , You need to manually adjust many things to print ; The second stage ： Then use VBA Development , This technology is highly automated , It can basically realize the printing system 70%-80% The function of , But there are some weaknesses ： Poor packaging effect , Open code , Lack of flexibility , The display interface is chaotic , Easy to tamper with , Easy to lose data ; The third stage （VB or C#): High degree of automation , near 100%, One click operation , The data is used strictly , The connection database is closed , You can set permissions , In a word, many, many ！！！
      Conclusion ： give up excel Development , give up VBA Development , choice vb or c# Development ！
      Here is the core of today ： key technology ！！！
  1. Case conversion function . You can search on baidu , Need to verify the correctness of the data ！
  2. The amount is completely converted into each print grid , And add RMB symbol to seal ！ It is necessary to disassemble and judge the data reasonably ！
  3. Print template making ： The key is to print the corresponding note in the grid , There are slight differences between banks , The printing batch of bills will also be different , The adjustment of the template requires the cashier to completely learn ！ It's not hard to ,5 minute -10 Minutes to master ！ It is difficult to adjust the template format , Usually directly excel Templates , Through code operation excel！ Occupy 30% The amount of work , just excel Operation technology can , No need to master the programming language .
  4. Data addition, deletion, modification and query , This full application code is developed ！ Including the payer , Address , Abstract , Settlement bank , Can be selected through data addition, deletion, modification and query . Occupy 60% The amount of work , Need professional programming skills .
  5. One click printing function . Connect the printer , Do a good job in debugging .
  6. permissions ： Put some unique printing systems and computers ID No , Check when opening the software , It can prevent copying everywhere , Protect and develop the intellectual achievements of people .
  7. How to ensure that the bill paper with very soft texture is not damaged in the printer ！
  The above key technologies have been mastered , Developing a commercial printing system is not a dream at all ！