Flaring blacks MX-3070

[mloudy]

Hate it when the littlest of things can kick our butts. Well done.

[tsbservice]

I found the problem. It seemed to me it was an LSU issue. I looked at the cable and this is what I found!!!!!Attachment 50262

You replaced LSU without examining ribbon cable both ends

[mojorolla]

FFC cable : "friggin flat cable" as I call them...

[copiertec]

If you can't get that flat cable back in without it bending, you can put a little bit of superglue on the backside of the bent connectors to adhere it to the cable. That has got me out of a few pinches when I would work on the old HP designjets and their trailing cables.

[bigdaddyooo]

You replaced LSU without examining ribbon cable both ends

Ahhhhhh NOOOOOOOOOOOOOOOOOOOOOOOOO. I did examine it and it was right on the corner so it was very difficult to notice. so after I exhausted all of my resources, I microscoped the cable and found that. But thank you Mr. Helper. LOL

[Blind Avocado]

If you can't get that flat cable back in without it bending, you can put a little bit of superglue on the backside of the bent connectors to adhere it to the cable. That has got me out of a few pinches when I would work on the old HP designjets and their trailing cables.

On some of the lower end HP desktops (LJ3035 especially) I would cut a little off the end of the cable. This saved me many times

[tsbservice]

I have a 3070 kicking my ass. I have replaced the MFP-pwb, MSata, PCU pwb, Lsu pwb, TC pwb, HVT pwb, MC pwb, HDD, TCI unit, Drum unit and DV unit and Im still getting this "flaring" blacks. The 22-6 looks like it is "double struck" from a typewriter. My 46-74's the colors are good but the black is way off. I will give examples here.

Attachment 50252Attachment 50253Attachment 50254

Ok, Ive tried both suggestions and both are a no-go. still having the problem. Im going to stop the print mid stream to check the drum and TC1 to see if the phenomenon is on either or both.

Ahhhhhh NOOOOOOOOOOOOOOOOOOOOOOOOO. I did examine it and it was right on the corner so it was very difficult to notice. so after I exhausted all of my resources, I microscoped the cable and found that. But thank you Mr. Helper. LOL

Well, for sure not a helper in this case. Just observer. Good luck troubleshooting next one.