PrintPreview Problems

[malparo]

Excuse me in English ...

I am using the component TPrintPreview , but I had a problem , some :
1. Some characters are put on others, it is not rare at all , or the separation of disparate characters .
2. when we put pictures in the bottom of the page is not vee .
3. how can I make the resolution of the characters always have independent seha the same computer to install the application

If someone could direct me please