Tuesday, November 23, 2010

Lexmark E323 Pickup Roller Replacement

The E323's pickup roller is a complete shaft/cams/roller assembly that's replaced as a unit.

The following procedure also removes the lower registration roller so it can be cleaned.

1) Cartridge

2) Top Cover
> Two M3x10mm pan head threading screws.

3) Right Side Cover
> Two finger-operable claws in front.

4) Left Side Cover
> One M3x10mm pan head threading screw.
> Two claws in front.

5) Rear Cover
> Two M3x10mm pan head threading screws.
> NOTE that the separation pad is now accessible for replacement.

6) Controller PCA Cover
> Four M3x6mm YZD hex washerhead screws.

7) Controller PCA w/Enclosure
> Fourteen cable connections. Free the cables from the enclosure. NOTE that connector J19 is unused.
> Three M3x6mm YZD hex washerhead screws outboard of the enclosure.
> Two M3x10mm YZD washerhead threading screws at the upper edge of the PCA.

8) Paper Input Chute
> One M3x6mm YZD hex washerhead screw at the ground continuity strap.
> Two M3x10mm YZD washerhead threading screws.
> Tip the chute rearward. Don't try to remove it entirely.

9) High Voltage Power Supply
> One cable connection at the top edge.
> Four M3x10mm YZD washerhead threading screws.
> Six 'bullet' contacts w/springs.

10) Main Drive Train
> Tray 2 bulkhead connector. Two claws. It lifts up out of its bracket.
> Free two cables from the cable clamp at the rear.
> Free the cabling from the cable clamp at the front.
> Four M3x10mm YZD washerhead threading screws.

11) Pickup Clutch
> One claw.

12) Pickup Roller
> Two swing-latch bearings.
> Tip the paper input chute forward a bit, and you'll be able to shift the roller shaft rightward to free its left side end.

13) Upper Registration Roller/Gate Assembly
> One swing-latch bearing.

14) Registration Idler Gear
> Slip it off its spindle.

15) Lower Registration Roller Gear
> One claw.

16) White Bearing
> Slip it out.

17) Lower Registration Roller w/Bearings
> Pry it upward and it'll pop out.

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