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Were I to guess I'd say that you're in a high humidity environment, and your machine needs a drum refresh more frequently.
What model do you suppose this might be?
If it were an Alphard I'd say enable U325 to On/Mode2, U148 to Mode3.
=^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
This problem happens only in the morning. Background on prints.
So far the drum and developing unit have been replaced.
335k on machine
Since you did not indicate the model this is occurring on giving a definitive answer is hard. Since it only happens in the morning, it would seem to be a moisture problem as Blackcat said. Are the paper tray heaters turned on if available on that model? A little more info on the model would be helpful.
has the machine registered that you replaced the drum and dev? check U000 for the serial numbers. Machines now need to be unplugged, installing new parts can create a process control nightmare.
Not familiar with that model... But I am curious where the machines is located? Does it set in front of or by a window that may be getting full sunlight in the morning? I have seen some weird things when sun is involved, black pages, blank pages, jamming, background & even moisture on guide plates causing streaks that look like bleeding and running on the page.. Just a thought
Loosening the belt on the scanner motor seemed to make this problem go away. This suggests that the background was present only during copying and scanning, not printing from the computer or receiving faxes.
I'm curious how you came to this conclusion. I don't see the connection. =^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
I'm curious how you came to this conclusion. I don't see the connection. =^..^=
Because the pattern matched what this problem does on a color machine.
First test is platen vs DP (no defect on platen as optical skew only happens at slit position.
Second test, with platen removed and power off, push scanner to left limit.
If it bounces back slightly when released, belt is too tight.
Loosens as machine warms up, hence morning issue.
"Being ignorant is not so much a shame, as being unwilling to learn" - Benjamin Franklin
Because the pattern matched what this problem does on a color machine.
First test is platen vs DP (no defect on platen as optical skew only happens at slit position.
Second test, with platen removed and power off, push scanner to left limit.
If it bounces back slightly when released, belt is too tight.
Loosens as machine warms up, hence morning issue.
Good to know, Thanks! =^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
WOW... Thats a new one for me as well.... Did anyone mention scanner position for DP, shading adjustment might make the difference. I am glad you fixed the issue, I just never would have thought that would make a difference, but the shading adjustment for the DP is a real fix as well.
WOW... Thats a new one for me as well.... Did anyone mention scanner position for DP, shading adjustment might make the difference. I am glad you fixed the issue, I just never would have thought that would make a difference, but the shading adjustment for the DP is a real fix as well.
Thanks for the update
Not really. If you see the defect in color, it makes more sense.
The 1st mirror assembly is out of position so it refracts white light as seen by the CCD. On a color machine the aberration is peach colored. A color scan via DP will bear this out. Most all scanners scan in color.
For BW the defect is converted to a greyscale of the color refraction.
A dual scan feeder would have good CIS backside scan as well on 2-2.
Plus remember White reference adjustments affect all and only DP front side is affected.
"Being ignorant is not so much a shame, as being unwilling to learn" - Benjamin Franklin
scanner driving belt can be a good idea, i have had several cases in past, but........
From example the print margins are not visible because there are scan margins
If we have moisture problem, background will be visible on print margins
If we have scanner belt problem, we will get no background on printout margins.
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