Specifications

5–52 Replacement Procedures
PROMs, Chips, and ICs on the CCB (Figure 5–23 )
Removal
1. Prepare the printer for maintenance (page 5–3).
2. Remove the common controller PCBA (page 5–46).
CAUTION
To prevent electrostatic damage to electronic components, wear a
properly grounded static wrist strap when handling PCBAs and
components.
3. Using a chip puller, remove the defective chip(s). Locations are shown
in Figure 5–23 .
Installation
CAUTION
To prevent electrostatic damage to electronic components, wear a
properly grounded static wrist strap when handling PCBAs and
components.
1. Using a chip installation tool, install chip(s). Locations are shown in
Figure 5–23 .
2. Install the common controller PCBA (page 5–46).
3. If you changed DPU or font PROMs, adjust hammer phasing (page
4–4).
4. Return the printer to normal operation (page 5–80).