JOINT FILING AGREEMENT
EXHIBIT
99.0
In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the
undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13D
(including any and all amendments thereto) with respect to the common stock of Printronix, Inc. and
further agree that this Joint Filing Agreement shall be included as an Exhibit to such joint
filing.
The undersigned further agrees that each party hereto is responsible for timely filing of such
statement on Schedule 13D and any amendments thereto, and for the completeness and accuracy of the
information concerning such party contained therein, provided that no party is responsible for the
completeness and accuracy of the information concerning the other party, unless such party knows or
has reason to believe that such information is inaccurate.
Dated: October 11, 2007
| Pioneer Holding Corp. | ||||||
| /S/ XXXXXXXXX X. XXXXXX | ||||||
| Name: Xxxxxxxxx X. Xxxxxx | ||||||
| Title: President and Chief Executive Officer | ||||||
| Vector Capital IV, L.P. | ||||||
| By: | Vector Capital Partners IV, L.P., | |||||
| its General Partner | ||||||
| /S/ XXXXXXXXX X. XXXXXX | ||||||
| Name: Xxxxxxxxx X. Xxxxxx | ||||||
| Title: Managing Member | ||||||
| Vector Capital Partners IV, L.P. | ||||||
| /S/ XXXXXXXXX X. XXXXXX | ||||||
| Name: Xxxxxxxxx X. Xxxxxx | ||||||
| Title: Managing Member | ||||||
