HP LaserJet 4 Service Manual - Page 209

Fuser Assembly Thermoswitch Removal 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. 1 Remove the Wire Harness Cover as shown in Figure 6-42a (LaserJet 4) or Figure 6-42b and c (LaserJet 4 Plus). 2 Remove the (2) screws from the Thermoswitch connector (see Figure 6-46, callout 1). 3 Release the thermoswitch latch from the paper sensor flag side of the Fuser Assembly (behind the side cover). (See Figure 6-46, callout 2). 4 Slide the Thermoswitch to the gear side of the fuser and release it from the fuser frame (callout 3). Figure 1-46 Fuser Thermoswitch Connectors 6-55 Removal and Replacement