Canon ir5000

[tekhock]

please help me.

My machine have this problem...copy out with blur at top and uneven.

[Guest]

please help me.

My machine have this problem...copy out with blur at top and uneven.

You might want to consider replacing the primary,pre-transfer,transfer separation corona ass'y or clean them or rewired them. Check whether the height of the primary corona is within spec also. It would be best to replace them. As for those white spots , buff the drum.

[tekhock]

thanks for help.
but i have try to change all corona wayar, clean primary and tranfer unit ,polish drum and exchange hvt also cant solve this problem.

[totoro]

What does a P-print look like? If it looks ok then look in the optics.

[smiley]

hi have you clean the laser unit or have you change your magnetc cylinder?

[Guest]

What does a P-print look like? If it looks ok then look in the optics.

totoro, the print that he is showing us is a internal type3 page from the main unit , this eliminate the optics automatically and the P-print gives us the specs of the main unit. I just want to eliminate any confusion.

tekhock, i would try the developer.

[totoro]

SCREWTAPE, I appreciate the clarification. I don't work on a lot on Canons and use the p-print as a test of the copiers' quality.

[Guest]

SCREWTAPE, I appreciate the clarification. I don't work on a lot on Canons and use the p-print as a test of the copiers' quality.

No problem buddy, we learn something everyday.

[roygunawan]

i suggest polish the drum, replace the developing cylinder or replace the drum heater. the uneven image usualy usualy because the dev cylinder is not working properly (need to be replaced). and the blur because the drum heater is not working properly.

[OJ the Bodge]

Hi, depending on the age of the drum you may need to change that, but 1st turn the drum around to see if the blur moves to the other end.
You wont get the white spots out if they are pitted into the drum no matter how much you clean it.

[blackcat4866]

I hate to be ther bearer of bad news, but your drum might be baked to death.

Common on this model, the fan filters clog up, and the toner fuses in the cleaning unit, and sometimes even in the developing unit. The first casualty is the two stage gear on the front of the cleaning unit driving the auger. If it's allowed to continue for a while a lot of other things can break.

Is the transfer/separation unit filling with toner already? That is another good indicator. Many of us have removed the large ozone filter in the bottom rear of the machine. The ozone filter get clogged quickly.

If the drum is scrubbed up against his fused toner for any length of time it will be ruined.

On the iR5000 machines I did wires and cleaned fan filters at every visit. Too much destruction can happen if you don't.

If you have been working on Canons for a while, you'll know that on the NP6650s and other related models there was a time when we substituted stainless grid wire for the primary. It wasn't much of an improvement, and when the wires degraded they looked like your samples. On the iR5000 series it is important that the brown charge wire is used with the blue wire cleaners, and the gold wire used with the beige/black wire cleaners. If the brown wire is used with the beige/black cleaners, the wire will not be cleaned. If the gold wire is used with the blue cleaners it will scrub the gold plating right off your wire in a few thousand copies, and look just like this. Don't remove the wire cleaners. If the right wire is installed with the right cleaners it works perfectly. This is a common mistake.

Let us know what you find. =^..^=