MX-3100 Line on prints CMY only

[boutn]

Re: MX-3100 Line on prints CMY only

Try the lighter internal prints at 155 and see what happens...

[blackcat4866]

Re: MX-3100 Line on prints CMY only

Try the lighter internal prints at 155 and see what happens...

I think the reason you're not seeing the line on the internal prints is because of the additional density of the fill. The lighter internal prints that boutn suggests will show the same voids.

If the voids had sharp edges I might think that they were caused by dirty laser optics. But since the edges are soft I think you'll find some sort of obstruction under the doctor blade of the developing unit leaving a faint area in the developing brush for cyan and magenta. =^..^=

[boutn]

Re: MX-3100 Line on prints CMY only

I think the reason you're not seeing the line on the internal prints is because of the additional density of the fill. The lighter internal prints that boutn suggests will show the same voids.

If the voids had sharp edges I might think that they were caused by dirty laser optics. But since the edges are soft I think you'll find some sort of obstruction under the doctor blade of the developing unit leaving a faint area in the developing brush for cyan and magenta. =^..^=

My thoughts exactly

[Jack79]

Re: MX-3100 Line on prints CMY only

Try interal print with

SIM 64-1

A 11
B 2
C 2
D 155 (this is the density, higher is darker, lower is lighter, max is 255)

Thank you boutn. I have done what you suggest and you were right. Line appear on the bottom part of page.
I did not have a chance to make a scan but I made a photo.

How can I solve this problem now?

[Jack79]

Re: MX-3100 Line on prints CMY only

I think the reason you're not seeing the line on the internal prints is because of the additional density of the fill. The lighter internal prints that boutn suggests will show the same voids.

If the voids had sharp edges I might think that they were caused by dirty laser optics. But since the edges are soft I think you'll find some sort of obstruction under the doctor blade of the developing unit leaving a faint area in the developing brush for cyan and magenta. =^..^=

Thanks for your explanation but all 4 developer and drum units were replaced and line was still there. Laser optics can be a problem. If not laser optics then what can you suggest?

[mojorolla]

Re: MX-3100 Line on prints CMY only

I think the reason you're not seeing the line on the internal prints is because of the additional density of the fill. The lighter internal prints that boutn suggests will show the same voids.

If the voids had sharp edges I might think that they were caused by dirty laser optics. But since the edges are soft I think you'll find some sort of obstruction under the doctor blade of the developing unit leaving a faint area in the developing brush for cyan and magenta. =^..^=

I agree.....
Sharps are notorious for crap in the DV tanks. They just modified the filters after almost a decade. The posted example look like voids on the dv mag roll.
I have been straining out the dv material for years now. A $5 colander ( kitchen strainer ) will save you hundreds of dollars in dv replacements.

Not sure if the 3100 has this, but SIM 64-1, pattern 17 is my go to troubleshooting pattern for calls like these.

[jon jennings]

Re: MX-3100 Line on prints CMY only

Lines can be caused by a bad memory chip. I have even had them only show up on the third page when printing. Examples of the print quality would be nice though if you want help.

[austonrush]

Re: MX-3100 Line on prints CMY only

Thanks for your explanation but all 4 developer and drum units were replaced and line was still there. Laser optics can be a problem. If not laser optics then what can you suggest?

When you says "4 developer units" do you mean you replaced 4 physical units or do you mean you refilled the units in the machine with new developer?

This looks like a developer unit problem

[crisjue]

Re: MX-3100 Line on prints CMY only

My team encountered this problem in MX-2700N. Try to clean all the mirrors in the inside part of the LSU unit, if you don't have any replacement unit try this method and be careful in cleaning.

[ZOOTECH]

Re: MX-3100 Line on prints CMY only

My team encountered this problem in MX-2700N. Try to clean all the mirrors in the inside part of the LSU unit, if you don't have any replacement unit try this method and be careful in cleaning.

This is good, but sometimes, just a re-seating of LSU connectors will take care of the problem.

[Jack79]

Re: MX-3100 Line on prints CMY only

When you says "4 developer units" do you mean you replaced 4 physical units or do you mean you refilled the units in the machine with new developer?

This looks like a developer unit problem

Yes whole units were replaced because my first guess was DV U but all mag rollers are covered properly.
This is not related to DV or Drum Units. Primary transfer belt was replaced too to eliminated this part.

[Jack79]

Re: MX-3100 Line on prints CMY only

My team encountered this problem in MX-2700N. Try to clean all the mirrors in the inside part of the LSU unit, if you don't have any replacement unit try this method and be careful in cleaning.

Yes I suspect LSU too.

[austonrush]

Re: MX-3100 Line on prints CMY only

Then I'd be leaning towards the LSU next. As Zootech said once in awhile just re-seating the LSU connectors (usually from the LSU side), can fix weird defects.

All 3 colours have the line in the exact same spot so, I would probably not be leaning towards a dirt issue. It looks more like a connector pin seating issue or bad LSU.

[moose55]

Re: MX-3100 Line on prints CMY only

I concur with everyone else....seems like it would be the LSU.