Lexmark E350 -- Random Notes

Service Parts

Fuser: 40X2800

Photoconductor: E250X22G

Pickup Tires: 56P1820

Toner Cartridge: E352H11A -- High Yield Return Program

Fuser Access

1) Tray 1

2) Right Side Cover
>Two claws in front.
>The cover swings open. Pry at the bottom rear to free the hinge.

3) Left Side Cover
>One M3x6mm bright washerhead threading screw in front.
>Two claws in front.
>Swing the cover open far enough and it will pop off its hinges.

4) Rear Cover
>Rear paper tray cover -- squeeze its sides inward to remove it.
>Open rear door.
>Two M4x8mm bright washerhead threading screws.
>Tip rearward and lift the cover away. Note the two hooks at the lower left and right sides that must engage rectangular openings upon reinstallation.

5) Delivery Assembly
>Three M4x8mm bright washerhead threading screws; two at the right, one at the left.
>The item pulls out the back. A bit of persuasion is needed at the left side end.
>REINSTALLATION NOTE: Getting it back in is not so easy; there's a very particular way that it must be tipped to get it started into place. It can be done, but if it gives you too much grief, better to raise the top cover at the left rear a bit -- two M4x8mm bright washerhead threading screws at the top left; one claw just beneath. Raise the cover and the delivery assembly can then be easily got back in place. There's a slight complication to this -- there are tabs on the top cover that must go under the front lip of the delivery assembly. Also, mind the thermistor cable; it can be a little unruly.

6) Logic PCA Cover
>Loosen off four M3x6mm bright washerhead screws.

7) Ferrite Bead
>Unlatch it at one side to open it.

8) Fuser
>Exit sensor cable connection at J11.
>Thermistor cable connection at bulkhead connector on top of fuser.
>AC connection at bulkhead connector on top of fuser.
>One M3.5x6mm bright pan head screw at ground wire terminal.
>Two M3.5x12mm bright pan head threading screws.
>Two latches. NOTE: Two latch levers emerge through the top of the fuser at either side. Each lever end is rounded and has a small hole through it. To remove the fuser, push the levers forward as you pull back on the fuser's frame, one side at a time. It seems to go more easily if you start with the left side latch.
>REINSTALLATION NOTE: Tip the front of the fuser downward as you move it into place. The latches should self-open as they come up against the latch bar and snap into place.

Fuser Exit Sensor Access

Note: The fuser exit sensor is not available as a service replacement part. You can only get one from another fuser.

With the fuser out of the machine, proceed as follows:

1) Exit Roller Gear
>One claw.

2) Exit Roller
>Two swing-latch bearings.

3) Lower Exit Frame w/Sensor
>One M3x6mm bright pan head screw at right side end -- T10 Torx.
>Swing the frame off.

4) Sensor
>One M3x8mm bright pan head threading screw -- T10 Torx.

Configuration Menu

Press and hold 'Check Mark' and 'Back' as you power on.

Diagnostics Mode

Press and hold 'Go' and 'Back' as you power on.

Maintenance Count

There is one. Invoke the Configuration Menu to view or reset it. There's also a photoconductor (PC) count. It can be reset, but not read, from the Configuration Menu.