HP LaserJet 4 Service Manual - Page 204

Figure 1-42 Fuser Wire Harness Cover Removal (LaserJet 4) 3 LaserJet 4: With a screwdriver, release the latches by first pressing to clear the lower latch, then lifting to release the upper latch (see Figure 6-42a). LaserJet 4 Plus: With a screwdriver, release the latches by first pressing to clear the lower latch, then lifting to release the upper latch. Repeat until all (4) latches are free, then rotate the cover to release the latch on the side (see Figure 6-42b and 6-42c). 4 Release the two end latches (see Figure 6-42b). Note Six of the seven latches are accessed from the top of the wire cover. These latches are beneath the felt pad. The slot on the front left side of the wire harness cover is the best place to begin removing the cover. 6-50 Removal and Replacement