Faded half printing

[Wilson101]

When I print in my c5035, all the colors print half faded images. This makes the printing half pale half deep. I have done auto mismatch color, swap the drum unit causing the problem but still happening. I have serviced the hopper unit for black, yellow and blue but it comes back after few prints. Any help will be appreciated.

[guitar9199]

Re: Faded half printing

Check those little "star" gears on the back of your developer units. Those have been known to crack and slip.

[Wilson101]

Re: Faded half printing

Check those little "star" gears on the back of your developer units. Those have been known to crack and slip.

I will check on it tomorrow God willing. Thanks

[Phil B.]

Re: Faded half printing

When I print in my c5035, all the colors print half faded images. This makes the printing half pale half deep. I have done auto mismatch color, swap the drum unit causing the problem but still happening. I have serviced the hopper unit for black, yellow and blue but it comes back after few prints. Any help will be appreciated.

do a stop test.. is the image that faded on the belt?

did you clean laser shield glass?

[Wilson101]

Re: Faded half printing

How do I go about the stop test please? I checked the stars on the developers and they are fine and fixed properly.

[Phil B.]

Re: Faded half printing

How do I go about the stop test please? I checked the stars on the developers and they are fine and fixed properly.

you are a tech and don't know how to do a stop test?

[JR2ALTA]

Re: Faded half printing

A stop test means to open a door during the copy process to force a jam. Then you can look at each unit. If the image is on the drum OK it's a transfer issue. If the issue isn't OK on the drum it means either laser or drum or developer. It's there's a transfer belt involved you can also use that as a clue.

Phil I know you're hard on techs, I get it. But the average yearly salary in Ghana is $2,200. It's a little rough to expect the same training and resources get to every part of the globe.

[Phil B.]

Re: Faded half printing

A stop test means to open a door during the copy process to force a jam. Then you can look at each unit. If the image is on the drum OK it's a transfer issue. If the issue isn't OK on the drum it means either laser or drum or developer. It's there's a transfer belt involved you can also use that as a clue.

Phil I know you're hard on techs, I get it. But the average yearly salary in Ghana is $2,200. It's a little rough to expect the same training and resources get to every part of the globe.

I have no idea where's he's from... we are talking copiers 101 here. Is a tech in that area just a "keyop"?

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[tech28]

Re: Faded half printing

Run a PG # 10 test print and see which color is giving you the problem. Or run single color copies and see that way also. 1 color will throw everything off when running color copies/prints.

[Wilson101]

Re: Faded half printing

Sorry guys, am now learning. I started training about 4 months ago and my trainer isn't forth coming in training. And Yeah am from Ghana. Thanks for your patience and am working on it.

[Phil B.]

Re: Faded half printing

Sorry guys, am now learning. I started training about 4 months ago and my trainer isn't forth coming in training. And Yeah am from Ghana. Thanks for your patience and am working on it.

sorry for jumping so quick Sir.

[JPiek]

Re: Faded half printing

Run a PG # 10 test print and see which color is giving you the problem. Or run single color copies and see that way also. 1 color will throw everything off when running color copies/prints.

I'd run multiple copies of PG5 on each color, since it fades after a first good print. Oh, and I'd do the PG5 on A3...

[fchu5959]

Re: Faded half printing

Sorry guys,i 've come across this thread just now;i hope the issue is being solved by now.

If not,i would suggest to replace the 2 RAMS on MNcont 2 pcb at the same time.

One of the RAMS is probably defective such that the image processing is only being done halfway.

Good luck.

[Wilson101]

Re: Faded half printing

Sorry guys,i 've come across this thread just now;i hope the issue is being solved by now.

If not,i would suggest to replace the 2 RAMS on MNcont 2 pcb at the same time.

One of the RAMS is probably defective such that the image processing is only being done halfway.

Good luck.

Oh okay. It's still behaving that way. I have worked on the hops for a dozen time but it keeps coming back. Do you mean the rams on the board covering the hopper gears?

[fchu5959]

Re: Faded half printing

Oh okay. It's still behaving that way. I have worked on the hops for a dozen time but it keeps coming back. Do you mean the rams on the board covering the hopper gears?

The main cont pcb2 is found in the controler box which is situated at the rear of the machine.
In fact there is only one dimm assy(2go or 1.5go).The part no is FM4-0837.
Check your service manual to see how to take out this board from the machine.It goes through a slot on the left hand side of the machine.