HP iPAQ h1930 User Manual page 62

Learning Input Methods
A question mark within an program indicates a Help file.
For the Letter Recognizer to work effectively, write characters
between the dashed line and baseline.
If you are writing a letter like "p," write the top portion
within the dashed line and baseline, and the tail portion
below the baseline.
If you writing a letter like "b," write the bottom portion
within the dashed line and baseline, and the top portion
above the dashed line.
5–6 User's Guide