Hi all,this may be very obvious to you guys with canon expierience but I have a 2018 machine with light faded copies/prints.Internal printouts are the same,so not the scanner at fault.It looks very like a transfer issue to me.So far I have swapped out with good parts the entire door unit with transfer section attached,the drum unit and the entire developer section.No joy still faded images.Maybe something common like a broken contact or spring I can look for? Thanks in advance,,
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If it ain't broke, don't fix it
A picture is worth a thousand words -
here is the USA ver. of zoraldinho's pub
TP09.pdfRemove the three screws used to attach the Holder, Gear to the Developer Assembly as indicated below-Check the Holder, Gear. If EF378 is imprinted on the part, then replace the Holder, Gear with one imprinted with F1382.
plate.JPG
When installing the machine or replacing with the new developing assembly, observe the following two items to prevent toner charge from being too high.
1. Do not turn ON the main power switch before inserting the toner bottle to the machine.
2. Do not execute "Developer Idling Mode" mentioned in the installation procedure.
A High toner charge will cause wash out-**Knowledge is time consuming, exhausting and costly for a trained Tech.**
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I have never faced this problem which was mentioned in the bulletin.
When I had faded copies, the change of FM3-2987-000 HVT PCB ASSEMBLY solved the problem.
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American version has better explanation than European version.
Although I find stupid that Canon doesn't use a single server for these purposes.
Statistically speaking : USA has a bigger market than Europe.
So there should be a bigger flow of info from people in the field.Comment
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"American version has better explanation than European version."
In Europe I haven't got message on my rearview mirror and I don't need it.
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Remember that the laser writes the image on the drum, a dirty optics path from the laser to the drum can give you light copies as well..."Once a King, always a King, but once a Knight is enough!"
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hi all,thanks for the input,
I have stopped the machine half-way through a print,looked at the drum which has strong toner image on it,while transfer of toner is weak,
This to me rules out laser,dev tank and drum unit,right?
Something to do with transfer,hv maybe??
Heres a sample attached
,page 1 a skyshot copy,page 2 and 3,an internal printout...Comment
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Hi,thanks,can you expand a little?,in you're expierience am i looking at the contact springs?,or maybe hv board?,
as i've previously stated i've already swapped out the door of the machine with the transfer unit attached so i'm thinking the problem is going back into the machine,
Thanks again for your input..Comment
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