HP 9020 Service Manual page 138

4-38
Assemhly Access
Printhead Assembly Removal
1. UNPLUG COMPUTER POWER CORD FROM AC OUTLET.
2. Remove printer from computer as previously described, and set printer down in upright
position.
3. From front of printer, completely remove two signal/power cables (Figure 4-36).
4. Remove #2 Pozidriv screw, washer, and nut that attach ground cable and strap to side of
printer and remove ground cable (Figure 4-36).
GROUND STRAP HEX HEAD BOLTS TRANSPARENT COVER
GROUND CABLE SIGNAL/POWER CABLES
Figure 4-36. Disassembling Printer
5. Remove two 7/16-inch hex head bolts and associated springs that attach transparent cover to
printer (Figure 4-36), and remove transparent cover (Figure 4-37).
Figure 4-37. Removing Transparent Cover