SHARP MX3570V

[Tech2002]

I have found out the following since I started this thread -

Client is having the imaging issues whether printing or copying.
Last week they were doing a lot of printing for a conference they
were attending and did not notice the copy side of the machine
was affected, too.

I have done the following -

67-33 - Good Values
67-34 - Good
52-22 - All Good
All Drums. Blades, and MC's changed within the last month
Fuser has been Updated
Changed out Primary Transfer

I have an attachment showing the distorted imaging issue.
I don't know if I got that right.

[mansart]

Wow! That’s a good one. Have not seen this before.

I’m assuming the page with bold “Forum” and “Tournament “ is first out?

Is the toner fused to the paper or does it rub off?

Test with 11*17 paper and 11*17 image.
Run two copies. Panic Stop the machine (aka open right side door). You want to time it so page 1 is half way through the fuser…. Is the defect visible before paper enters the fuser?

Pull the primary xfer out. You should see image on the belt. Is the defect visible on the belt?

If you do this same run of copies, but do it in single color mode, pick a color. Run the set. Same result?

What are the results of a SIM22-6 print? of a SIM64-5 print? of a SIM64-2 print?

Sorry not a quick answer, but I can help figure out where it’s happening. Then on to the why.


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[Tech2002]

Thanks for the input. I'll hopefully know more tomorrow Monday the latest.

[Tech2002]

Re: SHARP MX3570V

I have found out the following since I started this thread -

Client is having the imaging issues whether printing or copying.
Last week they were doing a lot of printing for a conference they
were attending and did not notice the copy side of the machine
was affected, too.

I have done the following -

67-33 - Good Values
67-34 - Good
52-22 - All Good
All Drums. Blades, and MC's changed within the last month
Fuser has been Updated
Changed out Primary Transfer

I have an attachment showing the distorted imaging issue.
I don't know if I got that right.

[mansart]

You mentioned LSU good?

Did you do LSU check 66-1?

I’m not sure if it’s the scan of the samples or not but the more I zoom in on them…you might want an LSU in your back pocket.


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[saulationseniortech]

I am having an issue while printing from the computer.
The print comes out very faint then appears to clear
up where the images are fine. I'm thinking it might be
the lower heat roller lamp.

The Blk DV Unit and the Drum and Blade have been updated in the
last 6-months or so. And the fuser has been updated.

I can't say I have have ever seen this happen before. I'm not out at
the client's office yet. They have some sick people that are out and they
wanted me to come in at the end of the wee to fix the issue.


Any suggestions greatly appreciated.

Does it smear? do you have samples?

[copiertec]

Have you tried the secondary transfer unit? There is a ground spring that touches a contact right above the primary transfer unit, maybe it is not fully touching the contact or the contact is dirty?

[saulationseniortech]

I have found out the following since I started this thread -

Client is having the imaging issues whether printing or copying.
Last week they were doing a lot of printing for a conference they
were attending and did not notice the copy side of the machine
was affected, too.

I have done the following -

67-33 - Good Values
67-34 - Good
52-22 - All Good
All Drums. Blades, and MC's changed within the last month
Fuser has been Updated
Changed out Primary Transfer

I have an attachment showing the distorted imaging issue.
I don't know if I got that right.

Did you replace just the belt? or the whole transfer belt unit? Check the secondary transfer belt. I would recommend to replace both units, not just the belts. Also make sure you the copier has the latest firmware. Do a full calibration and clean Laser glasses.

[Tech2002]

When I changed out the Primary Transfer it was the whole unit.

I forgot to add that I have done a 61-1 Laser Check - Good

Firmware has been updated to most resent.

The issue I have described intermittent. It appears to only act up as described after it has
been working long runs. Plus I tried most of the suggestion recommended to me - very
appreciated.

Because the the long run and problem scenario I decided to change out the Transfer Control PWB.
It was the heat thing that made me to look in this direction. I've got it replaced and it is a wait
and see.

One of the up ticks with the replacement board the colors, from a copy to a copy - those color copies popped!
Just that alone made me think it was a good thing to have specifically changed out that board.

I'm not out of the woods yet, but will update in a week or so - it shouldn't take too long to see
a positive or negative final results.

I sincerely appreciate everyone's input!!!

[doyvid]

We had this same issue on a 3570N. One of the few problems we never solved. The difficulty is it's so intermittent, you can do 500 or more test pages onsite perfectly, and then the customer calls the next day. Printing and copying.

The service history for our machine (in the period since problem arose) shows the following. In addition I know for certain we tried swapping in other used primary and secondary transfer units, possibly other things too. The customer's office was nearby so we tried lots of stuff that might not be on this list:

-cleaned ID sensors, laser slit glasses
-replaced transfer clutches pclc-0399fczz
-replaced tc hv pwb
-replaced ptc
-rebuilt primary transfer
-replaced colour drums- new not rebuilt (was due for PM)
-rebuilt fuser (due for PM)

Ended up giving the customer a different machine and we moved this one into our service area where it remains and randomly prints just like your sample every few months. It would be more often but it gets very low usage, maybe 100 pages per month.

I don't see any record of us swapping the laser unit or board so I'd vote for those as most likely cause. Didn't have a parts machine for those expensive parts and customer was rightly getting frustrated.

Unfortunately I don't have a sample from our machine, but will post one next time it happens.