5550ci grinding...

[jmaister]

Its from Transfer release motor. only happens on power up/down. It will start no problem, but its like the "stop" signal arrives a half second late and the motor spinning against dead stop creating the grind noise.

I was troubleshooting a noise around the fuser, touched the relay board to say the least(yc14 location)... And this happened. Initially i thought was the fuser/fuser drive components, but after afternoon of struggling i narrow it to Transfer Release Motor.

and I have absolutely no idea what i touched to mess it up..



any ideas?

I mean, i could change out this particular motor, that board, the "L" ribbon cable(which i seriously hope not), the big bundle of wire harness including the connector... I really wish the timing chart and theory of operation of most of these sub componet stuff is still in the manual...

any way to reset the timing?



/and apparently i scraped my pinky against the baremetal frame in the chaos not knowing, there was ceremony, there was sacrificial blood. But still nothing ...

[Tonerkiller]

we have replaced that motor before, for noise.

[jmaister]

so the story is, during the mess of things, i forgot a ribbon cable (the one that goes downward). So that resulted in the press release motor spinning against dead components, skipped gears and missed its home position (cam-ed).

So i took another assembly, swap it, all is well. Its not a self adjusting component one would think it is.

phew~

[blackcat4866]

If you dig into it there is a gear reduction that draws back the secondary transfer at the conclusion of each print job. The plastic housing has a post molded into it, which breaks off. I've replaced that housing a couple of times. =^..^=