MPC305 striped image

[ulflun]

Hi!

I got an MP C305 from an auction - I changed toners on it and now when I print, I get this:

picture2.jpg

Black and White:
printer3.jpg

I guess there was a lot of toner waste in the machine (dirty), but what could these mean? Drums?
Any ideas?

The printer count have:

Black & White	:	14061
	Full Color	:	19499

Thank you in advance!

[ulflun]

Re: MPC305 striped image

Any ideas? Can I take out the toner and clean the drum some how?

[copier tech]

Re: MPC305 striped image

With those low counts the drums wont need replacing.

But if you got the machine from an auction you dont know how long it has be stored for & in what conditions, cold & damp etc.

I would run say 30+ duplex prints to stirr the drum/dev units. If quality doesnt improve most likely you have some dirt/toner on the laser glass.

Easiest way to clean is remove the top copy tray cover, one screw in the top corner above the toner, you'll see the two laser units, one screw & they lift out, do it gently with out unplugging the ribbon cable, turn them over you'll see the glass, clean each one & fit back.

[ulflun]

Re: MPC305 striped image

With those low counts the drums wont need replacing.

But if you got the machine from an auction you dont know how long it has be stored for & in what conditions, cold & damp etc.

I would run say 30+ duplex prints to stirr the drum/dev units. If quality doesnt improve most likely you have some dirt/toner on the laser glass.

Easiest way to clean is remove the top copy tray cover, one screw in the top corner above the toner, you'll see the two laser units, one screw & they lift out, do it gently with out unplugging the ribbon cable, turn them over you'll see the glass, clean each one & fit back.

Big thanks for you quick answer. I will try this tomorrow and get back to you!
Yes, the printer have been transfered in a car and they left the toner in it mean while. Not such a good idea. I've tried to blow out all toner with compressed air but will try to clean everything else as good as I can!

[sandmanmac]

Re: MPC305 striped image

I've tried to blow out all toner with compressed air but will try to clean everything else as good as I can!

Unless you have the laser unit, drums, ITB, etc., removed from the machine, Air compressor = Bad idea

[NeoMatrix]

Re: MPC305 striped image

Unless you have the laser unit, drums, ITB, etc., removed from the machine, Air compressor = Bad idea

X2 ...Big-um bad-um idea all round.

Be careful that you don't force a high static voltage on the machine from compressed air. It's a good practice to ground/earth the machine before using any compressed air on the machine. I'm informed that you can generate as high as 40Kv of static electricity from plastics during the dry air winter months.
With that sort of high static charge it's quite possible to force a permanent logic high on the IC boards in the machine.

I've personally witness blown network boards from static electricity alone.

[ulflun]

Re: MPC305 striped image

Ouch, I did not know that. Even used carefully with Compressed Air on can?
I've used it on several computers without any damage. I think with a vacuum cleaner its a greater risk to build up static electricity?

However, thank you for warning me : -)

Best regards

[copier tech]

Re: MPC305 striped image

You're fine with aircan thats what they're disigned for!

[ulflun]

Re: MPC305 striped image

With those low counts the drums wont need replacing.

But if you got the machine from an auction you dont know how long it has be stored for & in what conditions, cold & damp etc.

I would run say 30+ duplex prints to stirr the drum/dev units. If quality doesnt improve most likely you have some dirt/toner on the laser glass.

Easiest way to clean is remove the top copy tray cover, one screw in the top corner above the toner, you'll see the two laser units, one screw & they lift out, do it gently with out unplugging the ribbon cable, turn them over you'll see the glass, clean each one & fit back.

Sorry for being such a newbie here, but what screw do you refer to? Every screw above the toners?
IMG_20160531_174827_1.jpgIMG_20160531_174723.jpg

[copier tech]

Re: MPC305 striped image

Just one screw in the top left corner just above the black toner

[ulflun]

Re: MPC305 striped image

Just one screw in the top left corner just above the black toner

Thanks. I have now managed to clean the glass. It was some dirt on it and the prints got a little better after this procedure.
However, It still seems to print a grid across images. I printed the Blackcat's test A4 and got these results:
(I was not smart enough to scan those, sorry for the quality):

IMG_20160531_204124.jpg

Untitled-1.jpg

If you look closely, 15% Cyan and 15% K gets a faded "grid" all over, as well as the color schemes on the last row get smashed. M and Y is all right.

Any ideas?

Best regards

[ulflun]

Re: MPC305 striped image

So, since the 15% C / 15% K gets a faded grid,
slide_9.jpg

the printer has two laser unit, and one is for these two C/K then might be failing? (picture)

I got tipped to swap places between the two laser units to see if its the unit failing, I will be trying this any time soon.

Any other Ideas? Can I clean somewhere else?

[Counsel]

Re: MPC305 striped image

If there is no grid on the magenta yellow pages i would agree your black/cyan LD unit could be failing. The ribbon cable could also be damaged, both of the Optical writing units (laser unit) are the same part number you could probably swap the two around and run your color test again if the problem switches to yellow/mag and not black/cyan then your probably need a new unit, if the problem does not change i would check the ribbon cable for damage. Beyond testing this first there isn't really anything you can clean to resolve the problem.

The laser unit is part number D1171860

[slimslob]

Re: MPC305 striped image

A grid pattern such as this is almost always a board problem. Could be IPU or BICU. The pattern is some thing that is loaded in memory. The other possibility is that you are making copies in service mode copy window though that is usually a black grid. When black it is one of the test patterns. As white I would say that the test pattern is being subtracted from the image.

[whitecat]

Re: MPC305 striped image

I think its a problem from image "creation" So , clean the itb ( image transfer belt , take the belt and cleaning unit out , compress air on rest of it ) but most likely is the pcdu ( the developer unit , developer might need to be replace on colors with problem) u might find toner builds between the drum and developer unit , clean that and give it a try .
Good luck .