4002i background

[nathicana]

Having background intermittently on a 4002i. 130,000 counts on machine. Bottom in example is leading edge.

Customer suggests it is happening through document processor only. Tech hasn't confirmed that. They don't scan so can't say if it exists on scans.

Drum and developer unit have been replaced no change.

Happens about every 150 pages. OEM toner. Firmware up to date

[Phil B.]

Re: 4002i background

Having background intermittently on a 4002i. 130,000 counts on machine.

Customer suggests it is happening through document processor only. Tech hasn't confirmed that. They don't scan so can't say if it exists on scans.

Drum and developer unit have been replaced no change.

Happens about every 150 pages. OEM toner. Firmware up to date

lef or sef feed?

have you used defect ruler to determine spacing between marks.

[nathicana]

Re: 4002i background

lef or sef feed?

have you used defect ruler to determine spacing between marks.

Long edge feed. No repeating marks that I can see in that direction.

[Phil B.]

Re: 4002i background

Long edge feed. No repeating marks that I can see in that direction.

HUH? I saw TWO!

[sparkycivic]

Re: 4002i background

how come it doesn't go to the edge of the paper? is that sample a scan/re-print?

[Phil B.]

Re: 4002i background

how come it doesn't go to the edge of the paper? is that sample a scan/re-print?

defects when copying don't always E2E.

[nathicana]

Re: 4002i background

how come it doesn't go to the edge of the paper? is that sample a scan/re-print?

Yes, the voids look wrong. Paper feeding toward you in the example.

It's supposed to be a picture of the actual print.

[Phil B.]

Re: 4002i background

Yes, the voids look wrong. Paper feeding toward you in the example.

It's supposed to be a picture of the actual print.

if in the example.. the edge that is closest to me is SEF not the vertical LEF

next time post in PDF not JPG format

[blackcat4866]

Re: 4002i background

Yeah, there's a lot of confusion here:

1) Is this a print of a scan, a copy, or what?
2) SEF or LEF?

I'll be waiting when you know for sure. =^..^=

[nathicana]

Re: 4002i background

Yeah, there's a lot of confusion here:

1) Is this a print of a scan, a copy, or what?
2) SEF or LEF?

I'll be waiting when you know for sure. =^..^=

Letter sized copy made using the document feeder. Feed direction is indicated on the example.

I'm thinking that the light source unit may intermittently not be in the correct position when the doc feeder is operating.

[blackcat4866]

Re: 4002i background

Theres some logic to that. =^..^=

[allan]

Re: 4002i background

Some bad HV contact?

[CWP]

Re: 4002i background

I'm thinking that the light source unit may intermittently not be in the correct position when the doc feeder is operating.[/QUOTE]

Nathicana,
I believe you are correct. Loosen the scanner drive motor slightly and also make sure scanner rails are lubricated and scanner slides smoothly.

[Hose1cook]

Re: 4002i background

Customer suggests it is happening through document processor only. Tech hasn't confirmed that.

Have you confirmed it does not do it when you put the original on the glass? If not I would use the charts ( U411) to get it back in spec.

[JR2ALTA]

Re: 4002i background

Nathicana,
I believe you are correct. Loosen the scanner drive motor slightly and also make sure scanner rails are lubricated and scanner slides smoothly.

I am trying this advice as well. I have a 6002i doing the same thing. I will follow up my results. The problem of course is how intermittent this is making troubleshooting very difficult.