In the T65X machines, the developer drive is integrated with the main drive train and motor assembly; there's no need to remove the developer drive first to get at the main drive. Also, the power connection at the System PCA is new; I've included photos of it further down. Proceed as follows:
- - -
1) Toner Cartridge
2) Paper Tray (Tray 1)
3) Back Door
- Disengage the support strap from its 'inverted T' slot and pull the door off its hinge pins.
4) Connection Access Cover
- Open it fully and its hinges can be popped free rearward.
5) Lower Rear Cover w/Fuser Access Door -- T650
- Three M3x10mm black washerhead threading screws.
- Open the fuser access door -- two claws.
- Pull the cover away at your left and slide the cover toward your right. A downward-pointing hook will slide off a lip at the rear of the chassis.
- NOTE: The above-mentioned hook makes this an awkward part to get back in place. You have to exactly re-create the cover's attitude as the hook was coming off to get it back on again.
5) Lower Rear Cover w/Fuser Access Door -- T652
- Two M3x10mm washerhead threading screws.
- Open the lower door.
- Two M3x6mm washerhead screws.
- Open the fuser access door -- two claws.
- Tip the cover rearward and lift it off of two hooks at the bottom.
6) Left Side Cover
- Two M3x8mm black washerhead screws in the handgrip wells.
- Two M3x10mm washerhead screws in deep wells in the side of the toner cartridge cavity.
- T650: Tug at the front lip and two upper claws and one lower claw will pop free. The cover's rear hinges come away easily.
- T652: Similar, but there are six claws, and one of them can be quite tenacious. First, pry at the angled upper front lip to free the upper two claws. The troublesome claw is located roughly 3" from the front and 3" from the bottom. You may have to reach in with a long narrow-bladed screwdriver to pry it loose.
7) System PCA Pan Cover
- One M3x6mm black pan head screw at upper rear.
- Loosen five M3x6mm black pan head screws.
8) System PCA/Pan Assembly
- One ty-wrap.
- Twenty cable connections.
- Four M3x10mm washerhead threading screws. (They're roughly at the corners of the PCA.)
- Pull the assembly straight away to disconnect J23, the POWER connector. You may have to wiggle the item a bit to get it to let go. The connection is near the lower rear of the PCA. Here's a view of it.
It's much like the PCA connection style that HP has used in many models. Here's a view of the connector pins with the System PCA removed.
It's something to be mindful of when it's exposed -- the pins are easily bent.
9) Vertical PTO Shaft w/Spring
- Pull it out the bottom of the machine.
10) Fuser Drive Engagement Link
- Gently pry its upper end free of the engagement lever. Rotate the link to where its lower end will come free.
11) Drivetrain/Motor Assembly
- One M3x10mm washerhead threading screw at the rear.
- One M3x10mm washerhead threading screw at the lower front.
- Two M3x10mm washerhead threading screws high up.
- One cable connection at the motor's rear.
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