![](/images/backgrounds/286708/hp-lj-1100-users-manual-549199117x1.png)
To check buttons in Diagnostic mode
1Press 9 on the
2Press each button on the control panel.
3Press an extra button.
For each button pressed during the test, a + character appears on the LCD (initially, five + characters appear on the screen to account for the 9 on the
When all of the buttons have been pressed, the display fills with + characters. If you press any other button after the display is full, an OK message appears on the
To exit Diagnostic mode
1Press VOLUME, ENTER/MENU, and 1 on the
2Release the buttons.
2
EN | LJ 3200 Service mode functions 115 |