ASCII CODE for dot matrix printer to replace ribbon in C # using Raw Printing

Question

I print receipts using the Dot Matrix Printer in C #.

The printer works great, prints characters in bold, large, etc.

The problem is that there are ribbons in the matrix matrix (black, red)

How can I indicate which text should be printed in black or red.

I use BinaryWriter to pass string and ascii code to get the desired result.

Example:

 bw.Write((byte)0);

 byte[] bytes = Encoding.ASCII.GetBytes(text);

 foreach (var by in bytes)
 {
    bw.Write((byte)by);

 }

Some link to sample code:

Code example

Any help is appreciated.

UPDATE:

Used printer Sewoo SLK-D30 Sewoo SLK-D30

The document says:

   Command  HexCode    Description

   DC3      <13>H      Red color print command

But unable to continue.