What do you mean by Vertical text?

I
S

T
H
I
S

W
H
A
T

Y
O
U

M
E
A
N
?


If so you have to print each letter one at a time.

Printer.Print "I"
Printer.Print "S"

Printer.Print "T"
Printer.Print "H"
Printer.Print "etc....."