This is one of those fuser removals where a whole bunch of seemingly unrelated stuff has to come off/away before the fuser can be removed. Please note the following two points:
a) Items '18)', '19)' and '20)' deal with a cabling trough cover and two cables. Pay close attention to that area as you're dismantling it -- it's a devil of a thing to get back in place correctly at reassembly.
b) New fusers come with a gear train release link P/N RC1-3670. It's a retrofit that links the cartridge access door to the fuser drive, so that opening the door disengages the fuser to facilitate clearing jams. Don't install the link until just before reinstalling the fan. When the link is in place, the fuser's drive gear can't be put back on. See this post for illustrations of the link installation.
Proceed as follows:
1) Cartridge
2) Paper Tray
3) Left Side Cover
- Pry at rear lip. Shift the cover frontward slightly to unhook it.
- NOTE that there's an interlock function associated with this cover. The actuator is a rearward pointing tab high up on the front lip. With this cover removed, the cartridge access door won't close. The interlock is easily cheated with a small screwdriver.
4) Right Side Cover
- Similar to left side cover, but the claws are more tenacious, especially the lower one just below the line cord receptacle. Pry A/R.
5) Rear Cover
- Four M3x8mm black washerhead screws.
- Cheat the interlock for the left side cover and fully close the cartridge access door.
- Stand the machine on its front.
- Open the lower rear door and NOTE how this cover relates to the rear end of the duplexing platform. You'll want to be familiar with that come reinstallation.
- NOTE the two hinge pins for the duplexing platform. The one at the right must be gently freed from the hole in the sheet metal to allow the rear cover to come away.
6) Top Cover
- Three M3x8mm black washerhead screws.
- One M4x10mm pan head threading screw.
- One cable connection at control panel.
7) Formatter w/Shield and Interface Bezel
- Five cable connections.
- Eight M3x6mm bright washerhead screws.
8) Fan
- One wire bail.
- Two M3x8mm black washerhead screws.
- Lay the fan on its top beside the machine.
9) Duplex/Delivery Gear-frame
- NOTE: The gears are free to spill as this item is removed.
- Three M3x6mm washerhead screws.
10) Uppermost Gear (Delivery Roller Gear)
- One claw.
11) Large Fuser Drive Gear P/N RU5-0331.
- One claw.
12) Four Cables at the Extreme Rear
- Disconnect them and free them from their restraint P/N RC1-3667.
13) Cable Restraint P/N RC1-3667
- One tab. Slide the item to your right.
14) Two Remaining Cables at Rear
- Disconnect them and free them from their restraint P/N RC1-3666.
15) Cable Restraint P/N RC1-3666.
- One tab. Slide the item to your left.
16) One Black Wire
- It's at your right. Disconnect it.
17) Two Cable Connections.
- They're at your left. Disconnect them.
18) Fuser Cabling Trough Cover
- The cover is a small, black cover associated with the black, two-wire fuser power cable. Unhook the cover at its inboard rear end and pull it away.
- NOTE: A new fuser will have this cover in place on it. Remove it before installing the fuser
19) Five-Conductor Cable Connection at Inboard Right (There's a big ferrite bead on it.)
- Disconnect it and free it from its channel.
20) Add-On Tray Autoconnect Cable
- Disconnect it and free it from its channel. Pull it in through its grommet.
21) Fuser
- Six M3x6mm black washerhead screws; three at right, three at left.
- Spread the left side vertical chassis member A/R to allow the fuser to come out at an angle.
- AT REINSTALLATION, MIND the wiring at both sides -- it's easily pinched.
22) Trailing Edge Flaps Assembly and Delivery Roller
- These two items are not included with a replacement fuser, and must be transferred over from the old fuser.
- Two claws to release the flaps assembly.
- One swing-latch bearing at the right side to free the roller.
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