HP M525 Close top feeder cover

[tech28]

Replaced formatter, still same, replaced DCC like Phil B. suggested, still "close top cover" Ran new firmware, still no change. Any more suggestions?

[tech28]

Have not done harness, yet, sensor, formatter, dcc, replaced and zilch!! Crazy I say, crazy!!

[Printerdude]

Have not done harness, yet, sensor, formatter, dcc, replaced and zilch!! Crazy I say, crazy!!

Replace the harness cables. These cables break because of all the open and closing of the ADF lid. One of the lead in the ribbon harness is most likely broken. Had similar problems with ADF issues on several HP and Canon models.

[austonrush]

We re-solder these cables all the time. They break from frequent opening and closing of the cover.

[tech28]

Cable harness, replaced and it worked like a champ, put it all back together, now has 59.05.50 error,(main motor error) this machine is a copier from hell!!

And on the HP subject, just had a HP MFP C575, colors are off registration(black is fine), could not find anything in the service troubleshooting manual on how to run a sim for that problem.

Anybody know how to?

Thanks.

[theengel]

How do you know it's black that is fine? LOL

You're probably using generic ctgs. Those cause the colors to be off.

[tech28]

Replaced all the covers on the 575, then it threw a 30.30 error, document feed sensor, done with it! We replaced the feeder. Live and learn. The M575, has oem toners and still registration off. Black is dead on, colors are just off.

[tech28]

Ment to say M 525 feeder .

[theengel]

If you have oem toners, and the registration is still off, do a cold reset. If that doesn't work (it probably won't), replace the transfer belt assembly.

[tech28]

Did reset, new firmware, great registration now! Great prints, Thanks Theengel!!