[CQ] canon iR 8500 starteing light copy

[nizam]

for senior tech, i have problem with ir8500 that A4 copy starting light i replace transfer assembly, repair the problem any help me

[teckat]

for senior tech, i have problem with ir8500 that A4 copy starting light i replace transfer assembly, repair the problem any help me

post the image issue-

is the light image also shown on Network Prints

[charm5496]

for senior tech, i have problem with ir8500 that A4 copy starting light i replace transfer assembly, repair the problem any help me

Does it happen on prints or internal test pages as well as copies?
If so I would look at the pre-exposure lamps or primary carona assembly.

[nizam]

08042011061.jpg

[zoraldinho]

I bet on transfer issue.How many million copies do you have on this masterpiece?

[nizam]

I bet on transfer issue.How many million copies do you have on this masterpiece?

1,56700 copies & 26,9466 copies i will change transfer

[mrfixit51]

I bet on transfer issue.How many million copies do you have on this masterpiece?

I agree with zoraldinho,, it looks like lead edge light copy caused by a transfer/separation corona. I rewire them till they get to a million, then replace them...

[nizam]

I agree with zoraldints & mrfixit51. i replce the transfer/sepration corona assembly the thousend copies the problem repet, change the primeary & pre-priemary no change

[nizam]

I agree with zoraldinho,, it looks like lead edge light copy caused by a transfer/separation corona. I rewire them till they get to a million, then replace them...

i am replace transfer/separation corona the problem not ok. the lead edge light copy A4R & LGL is ok & A4 & A3 the lead edge copy light

[teckat]

Replace the Potential Sensor and Potential Sensor PCB

COPIER>OPTION>BODY>DEV SLOW set it to 0

[Matoku]

Hi every tech out there.

I also facing this problem in a few machine of 8500. I have change the t&s front and rear block and the corona wire but still the same.
I also have insulate the ts block lower frame with pvc tape. It only show improvement when i reduce the transfer charge velue to 200.
For your info I am Using oem t&s end block for front and rear. If anyone of you have any suggestion regarding this problem are really appreciated.

[kingpd@businessprints.net]

Make sure the machine isn't on a carpet. Had problems with that before.

[20YRSEXP]

change the TS settings in service mode. we have found setting it lower helps. usually below 100, but that will depend on where you are due to climate differences.

[Matoku]

Hi Kingpd,
you mentioned " on carpet floor" how about wooden eleminated floor? is it would effect also? if so, Am I need to use extra earthing cable (wire) for grounding the machine?

20yrsexp> ir8500 tr-1 & TR-2 setting default is 531. And this I think Too much if I set to 200.
I worried it will sparking and demage the drum as well.

[teckat]

if your outlet is properly grounded and voltage between Neutral & Ground is =less than 0.5v u are good-

all printers have static electricity to deal with