Canon IR7086 Thin lines .

[sham.panhale]

Dear friends .


I have Some canon IR7086 /7105 .
I am having problem with one copier.
The technician have clean all the drum unit and changed the cleaning blade , But still the lines are appearing and increasing.
The drum is clean.
letter 003.jpg

Pls Help

[CRISTIAN MULLER]

Re: Canon IR7086 Thin lines .

Dear friends .


I have Some canon IR7086 /7105 .
I am having problem with one copier.
The technician have clean all the drum unit and changed the cleaning blade , But still the lines are appearing and increasing.
The drum is clean.
[ATTACH=CONFIG]23822[/ATTACH]

Pls Help

How long after cleaning takes to apears?make a test, when this line apears check the magnetic roller under cleaning blade, if there is a even layer of toner on it, check the quenching led, if toner is concentred on a spot in that roller, check gears at the front of Ap kit assembly, i had same problem 4 months ago, but the gear damaged was on back of machine, take forever to see waths hapening.

[sham.panhale]

Re: Canon IR7086 Thin lines .

Thank you for your reply.
After cleaning the blade it is appering after 100 Pages .. start from very lite and small band to dark and bigger.
I tried by installing another working drum unit ..it isworking fine . I think its the drum unit which is faulty.
I will chk and revert you after cleaning magnetic roller.

How long after cleaning takes to apears?make a test, when this line apears check the magnetic roller under cleaning blade, if there is a even layer of toner on it, check the quenching led, if toner is concentred on a spot in that roller, check gears at the front of Ap kit assembly, i had same problem 4 months ago, but the gear damaged was on back of machine, take forever to see waths hapening.

[Brian8506]

Re: Canon IR7086 Thin lines .

Also take the drum out of the carriage and make sure there's no small pieces of paper that are jammed and causing cleaning failure.

[sham.panhale]

Re: Canon IR7086 Thin lines .

Tried by changing the cleaning ass. And Did not have any trouble until approx 60k prints. But now again the lines appearing

Thank you for your reply.

After cleaning the blade it is appearing after 100 Pages .. start from very lite and small band to dark and bigger.
I tried by installing another working drum unit ..it isworking fine . I think its the drum unit which is faulty.
I will chk and revert you after cleaning magnetic roller.

[sham.panhale]

Re: Canon IR7086 Thin lines .

Tried by changing the cleaning ass. And Did not have any trouble until approx 60k prints. But now again the lines appearing

How long after cleaning takes to apears?make a test, when this line apears check the magnetic roller under cleaning blade, if there is a even layer of toner on it, check the quenching led, if toner is concentred on a spot in that roller, check gears at the front of Ap kit assembly, i had same problem 4 months ago, but the gear damaged was on back of machine, take forever to see waths hapening.

[tinnyjay]

Re: Canon IR7086 Thin lines .

Tried by changing the cleaning ass. And Did not have any trouble until approx 60k prints. But now again the lines appearing

Open the door,remove front cover(the one that covers drum unit).
Put actuator door or a screwdriver in front door switch and copy something to see the cleaning assy's gears are rotating normally.
Sometimes a small gear that drives cleaning assy,right behind drum unit, get demaged and bad toner remain in magnetic roller,printing dirty lines.

[CRISTIAN MULLER]

Re: Canon IR7086 Thin lines .

Dear friends .


I have Some canon IR7086 /7105 .
I am having problem with one copier.
The technician have clean all the drum unit and changed the cleaning blade , But still the lines are appearing and increasing.
The drum is clean.
Pls Help

I can't see at image you posted, but , something that help me debugging this issue was, wen this lines appears, i could see little letters from pages that was printed already in the middle of this lines, so i had sure this toner is dropping after cleaning blade and before quenching led, there is a gap in the middle, so the problem is, cleaning blade clean the toner but won't erase that charge, toner drops after cleaning blade, charge still remain and its make letters appears because of dropped toner, quenching led erase that charge but toner already have dropped and drum continues to rotate and this letters are transferred to paper, hope this help you.

[sham.panhale]

Re: Canon IR7086 Thin lines .

hi .
thank you for your reply.
The text which you can see is the text already printed on back side of the page.
Anyway .. For now i got ride of the problem by dissembling and cleaning whole drum unit and cleaning assembly . The lines are not appearing until now .
But I am sure they are going to come again.
BTW the same copier giving error code E069 frequently .
I will let you know any developments with the problem.

I can't see at image you posted, but , something that help me debugging this issue was, wen this lines appears, i could see little letters from pages that was printed already in the middle of this lines, so i had sure this toner is dropping after cleaning blade and before quenching led, there is a gap in the middle, so the problem is, cleaning blade clean the toner but won't erase that charge, toner drops after cleaning blade, charge still remain and its make letters appears because of dropped toner, quenching led erase that charge but toner already have dropped and drum continues to rotate and this letters are transferred to paper, hope this help you.

[sham.panhale]

Re: Canon IR7086 Thin lines .

Thank you for your reply.

For now i got ride of the problem by dissembling and cleaning whole drum unit and cleaning assembly . The lines are not appearing until now .
But I am sure they are going to come again. I will check for the gears .
BTW the same copier giving error code E069 frequently .
I will let you know any developments with the problem.

Open the door,remove front cover(the one that covers drum unit).
Put actuator door or a screwdriver in front door switch and copy something to see the cleaning assy's gears are rotating normally.
Sometimes a small gear that drives cleaning assy,right behind drum unit, get demaged and bad toner remain in magnetic roller,printing dirty lines.

[tinnyjay]

Re: Canon IR7086 Thin lines .

Thank you for your reply.For now i got ride of the problem by dissembling and cleaning whole drum unit and cleaning assembly . The lines are not appearing until now .But I am sure they are going to come again. I will check for the gears .BTW the same copier giving error code E069 frequently . I will let you know any developments with the problem.

E069 is something normal in this machine and remember you will see it too much.This code sleeps with this machine's family!It is related to the transfer/separation corona wires mostly(also in your case).Change the wires and wires cleaner inside corona unit and you will never see it again till 300k-500k

[sham.panhale]

Re: Canon IR7086 Thin lines .

Thank you.
I think you are online
Have you seen my another post?

http://www.copytechnet.com/forums/showthread.php/86213-IR7086-Black-Spots-on-copy-and-print

If you have some time pls reply .

E069 is something normal in this machine and remember you will see it too much.This code sleeps with this machine's family!It is related to the transfer/separation corona wires mostly(also in your case).Change the wires and wires cleaner inside corona unit and you will never see it again till 300k-500k

[DIMM]

Re: Canon IR7086 Thin lines .

I have the exact same problem with one IR7086 and have mounted a new AP Assembly and fuser mm. After about 6k double-sided problem is back again.
Was it a gear on Cleaner Drive Assembly, the damaged gear back of machine?

[vigour]

Re: Canon IR7086 Thin lines .

How many copies onyour machine?
If cleaner blade,cleaner assembly, gear,or AP Kit, does not solve your problem, replace the Cleaner DriveAssembly as DIMM said

[Canuck]

Re: Canon IR7086 Thin lines .

Cleaner drives are worn or gear on process unit for cleaner drives bad. The magnetic roll has to apply a coating of toner on the drum just before the cleaning blade or it will streak. That is why you can enable black band sequences on this model to improve cleaning. It is the accumulation of toner against the edge of the blade that makes it clean. More common on 105 but I see it on 7105 also