Intermec EasyCoder PX4i User Manual page 141

Chapter 11 — Maintaining the Printer
126 EasyCoder PX4i Bar Code Label Printer User's Guide (Fingerprint Version)
6 Disconnect the cables from the printhead. Note the snap-lock
on the inner connector. Pull at the connectors—not at the
cables!
7 Connect the two cables to the replacement printhead.
8 Fit the hooks of the printhead bracket fingers onto the
headlift shaft. Make sure that the cables do not prevent the
bracket fingers from being properly seated on the headlift
shaft.