canon ir c9075 pro no yellow

[printerjohn62]

I have a canon ir c9075 replaced the drum and developer after now I have no yellow. Any ideas?

[northernlife]

Re: canon ir c9075 pro no yellow

Did you do a full initialization of the developing unit? Toner stirs and all that jazz??

[printerjohn62]

Re: canon ir c9075 pro no yellow

Yes we did.

[Jaycat718]

Re: canon ir c9075 pro no yellow

Check to make sure that the DV and drum are hooked together properly. The latch on both sides must be secured properly. If not, the drum will not make proper contact with the DV unit.
Also, make sure that the DV unit is connected properly. if the harness is disconnected, this can also lead to improper color transfer.
Was the ITB serviced? Make sure that the ITB is making proper contact with the secondary outer transfer roller.

[dan7777]

Re: canon ir c9075 pro no yellow

I have a canon ir c9075 replaced the drum and developer after now I have no yellow. Any ideas?

Check the transfer belt charge roller for that color. There are some plastic thingys that bend or break and the charge roller is away from the belt on one side. I forget which color but one of them is a real pain because of some plastic wheels that go through a sensor you have to take off to get to it. It seems like it was yellow but I don't remember. The other tech had the problem and they brought the machine in because they could not figure it out. I think it was a different model but has the same transfer belt. We keep that small part in stock now. Sorry I don't remember the part number but if you look closely you can tell. We have a lot of 7065's but I think the parts are the same.

[blazebusiness]

Re: canon ir c9075 pro no yellow

Yellow developer drive belt still attatched? They can pop off................

Make copy of something yellow. Stop the copy and see if there is yellow toner on drum. If yes, ITB issue.

[vigour]

Re: canon ir c9075 pro no yellow

Are you sure there is a developer drive belt in this model ?

Yellow developer drive belt still attatched? They can pop off................

Make copy of something yellow. Stop the copy and see if there is yellow toner on drum. If yes, ITB issue.

[blazebusiness]

Re: canon ir c9075 pro no yellow

Are you sure there is a developer drive belt in this model ?

Yep. Been working on Canon's since the early 90's my friend. There are several. One belt for each color. Developer drive assy in the factory parts manual Figure 270 if you want to see a illustration of them. I think there's even a tech pub on them popping off if you have access to the Canon knowlagebase online.But, that being said......my guess would be it's probably an ITB issue/belt charge roller issue for that color.. Yellow not being transferred to belt from the drum.

[teckat]

Re: canon ir c9075 pro no yellow

Are you sure there is a developer drive belt in this model ?

BELT_TIMING.JPG
BELT_TIMING.JPG

[blazebusiness]

Re: canon ir c9075 pro no yellow

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Those are what I was talking about. As always, Teckat is the master at providing great pics and diagrams. He used to post a lot more humorous pics in the old days though. Thanks Kat.

[teckat]

Re: canon ir c9075 pro no yellow

Those are what I was talking about. As always, Teckat is the master at providing great pics and diagrams. He used to post a lot more humorous pics in the old days though. Thanks Kat.

getti'n old

[vigour]

Re: canon ir c9075 pro no yellow

I believe the pictures and I believe you but......
I have changed about 10 of those hoppers and I cannot remember seeing those belts,
Immediately after posting that question I tried to delete it twice without success
Blame my miscues on the weekend