HP M525 Close top feeder cover

[tech28]

Machine says to close the top cover for the ADF, replaced cover sensor, still same thing. Checked wiring to relay board, replaced that also. Thinking formatter? Anybody run into that problem? Thoughts?

[Phil B.]

Re: HP M525 Close top feeder cover

Machine says to close the top cover for the ADF, replaced cover sensor, still same thing. Checked wiring to relay board, replaced that also. Thinking formatter? Anybody run into that problem? Thoughts?

the DCC controls the sensors .. motors.. ect not formatter

[blackcat4866]

Re: HP M525 Close top feeder cover

Something like this maybe?:

[guitar9199]

Re: HP M525 Close top feeder cover

Something like this maybe?:

8


I didn't know MacGuyver was in our forum!! ....Cool!

[tech28]

Re: HP M525 Close top feeder cover

Traced the wire harness to the sensor that tells it when top doc feeder is closed, can replicate the problem on another M525 next to it, slide paper into where sensor is and the message goes away,with top cover open(on the working 525) the one that always says cover open, to little board on feeder,(looks like relay board) replaced that board, still same, wiring goes from there to formatter? Go Figure. Will have formatter on Monday. Will post.

[Phil B.]

Re: HP M525 Close top feeder cover

8
I didn't know MacGuyver was in our forum!! ....Cool!

yup quite a few of us... WHATEVER it takes to get the end user up n running!

[Phil B.]

Re: HP M525 Close top feeder cover

Traced the wire harness to the sensor that tells it when top doc feeder is closed, can replicate the problem on another M525 next to it, slide paper into where sensor is and the message goes away,with top cover open(on the working 525) the one that always says cover open, to little board on feeder,(looks like relay board) replaced that board, still same, wiring goes from there to formatter? Go Figure. Will have formatter on Monday. Will post.

not sure but you SHOULD have several sensors in the ADF.. have your checked ALL sensors thru SM?

[zoraldinho]

Re: HP M525 Close top feeder cover

yup quite a few of us... WHATEVER it takes to get the end user up n running!

You just called yourself MacGuyver?
Self-confident antiquity.He he...

[Phil B.]

Re: HP M525 Close top feeder cover

You just called yourself MacGuyver?
Self-confident antiquity.He he...

i will wear that badge proudly since I am of that generation.

[theengel]

Re: HP M525 Close top feeder cover

Are you saying you replaced the wiring harness from the doc feeder to the machine?

I've seen those go bad a lot, and it's not always detectable with a meter.

[tech28]

Re: HP M525 Close top feeder cover

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

[tech28]

Re: HP M525 Close top feeder cover

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

[Printerdude]

Re: HP M525 Close top feeder cover

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]

Re: HP M525 Close top feeder cover

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

[tech28]

Re: HP M525 Close top feeder cover

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.