1, corresponding software, such as active X control, is not installed on the computer;

2. The security level of the computer is set too high. Please adjust the level so that the plug-in can pop up.

3. The format in the document is incorrect, the box before "Print background color and image" is not checked, and the line spacing of the seal in the document is not single line spacing, so the seal cannot be displayed;

4. The printer has no corresponding color ink, so it can't print, and it can only print blank.

It is suggested to inquire step by step according to the above situation.