Figure 87 Laser Assembly - Xerox 5400N - Phaser B/W Laser Printer Service Quick Reference Manual

8. Disconnect P/J112 and the in-line connector P/J114 from the Laser Assembly.
9. Remove the four screws that secure the Laser Assembly to the printer.
10.Remove the Laser Assembly.

Figure 87 Laser Assembly

Replacement
Reinstall the components in the reverse order.
298 Phaser 5400 Laser Printer Service Guide