Depending on the character strings that should be drawn for printing, the following symptoms occurs:
1. mismatch between the drawing width and font metrics value.
2. output as image.

java.awt.Graphics2D#drawString(String, float, float)
1. If the parameter String contains one or more of the special symbols(after-
mentioned), the drawing result is different.
2. the expected result of the character strings should be a text. But if the parameter String contains one or more of the special symbols, the result is an image. This symptom can be confirmed by outputing the character strings using a printer driver which have the PDF output function.

3. If the parameter String does not contain the special symbols, a mismatch occurs between the width drawn and the width obtained by java.awt.FontMetrics#
getStringBounds(String, Graphics2D) or java.awt.FontMetrics#stringWidth(String). In this case, the output of the character strings is a text, not an image. The mismatch of the width is especially prominent in the japanese part of the character strings.

Special symbols:
the special symbols are the following:

,.?!)]}?????([{?-^?@;:?#$%&=?|`+*<>_

the UNICODE code point of these symbols is U+FFxx.