Printronix P9012, Maintenance Manual

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6–42 Replacement Procedures
Magnetic Pickup Unit
(Figure 6–13)
Removal
1. Disconnect the AC power cord from the rear of the printer. Open the top
cover.
2. Remove the right side panel as described on page 6–4.
3. Loosen two captive screws and remove the cam cover (not shown).
4. Disconnect Magnetic Pickup Unit connector P35 (1).
5. Loosen the MPU clamping screw (2). Unscrew the MPU (3) from the
MPU arm (4) and remove it from the printer.
Installation
1. Screw the MPU into the MPU arm until it is about half a turn from the
flywheel assembly (5).
2. Connect MPU connector P35.
3. Perform the MPU gap and phasing adjustments as described on pages
5–20 and 5–22 of Chapter 5, Alignments and Adjustments.
4. Install the cam cover and tighten two captive screws.
5. Install the right side panel as described on page 6–4.
6. Close the top cover.