[CQ] C280 dots all over prints

[copier tech]

I hope someone can help, no idea what causes this. It prints the gradation prints perfecty, all other copies or prints have these dots!

i've tried updating the firmware.

I thought the laser but it prints gradation pattens ok.

image.jpg

[mo0651]

Re: C280 dots all over prints

Has this machine gotten reset , initialized, or a new NVRAM???

[copier tech]

Re: C280 dots all over prints

None of that yet no

[EarthKmTech]

Re: C280 dots all over prints

MFP board or ram.

try the ram first, if no go, mfp, problem solved.

[habik]

Re: C280 dots all over prints

Try set it up as if it was new machine.


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[BizTech]

Re: C280 dots all over prints

C360 have a nasty habit of their mfp's failing for no reason. I havent had those same dots, but train tracks and other image distortions on a couple and it has always taken a mfp board

I think the initial setup lines are different than those, i think they are solid bars. but it will display them if its been reset or somtehing. to get rid of those lines you have to run through the initial setup again, doing touch panel adjustment < a couple more things> and ending with the gradation adjustment.

[copier tech]

Re: C280 dots all over prints

Thanks for all the info, I don't feel it's an initial install type fault as the lines look different, I did however go through the setup anyway. I have another c280 I can take an MFP from, i'll try the ram first. If I do fit a used MFP board will I loose all the machine/customers settings, IP, address book etc? If so I guess I can import/export those settings. Also fitting a used MFP board will I get that license management error message!?

[nvram]

Re: C280 dots all over prints

Hi, you can keep the mfp and the nvram together from your other machine to try to diagnose the fault on this machine, you will get licence man error, but this way if the fault is not the mfp you can refit the original without the management error, if you find that the mfp is at fault and fit the mfp from the other machine make sure the firmware level is the same otherwise you will end up having to format the hdd, then you will lose your scan settings, otherwise you should only get the licence management error, which is easily fixed by obtaining a repair code from konicas LMS.

[copier tech]

Re: C280 dots all over prints

If I fit the MFP from my good machine, can I use the NVRAM from the faulty c280, or is it best to keep the NVRAM on the original MFP boards?
Can I avoid the licence management error? what boards do I swap from my working c280 to my faulty C280, how about counter readings, will they change over? sorry for all the questions but I'm looking for a the quickest & simplest fix!

[EarthKmTech]

Re: C280 dots all over prints

If I fit the MFP from my good machine, can I use the NVRAM from the faulty c280, or is it best to keep the NVRAM on the original MFP boards?
Can I avoid the licence management error? what boards do I swap from my working c280 to my faulty C280, how about counter readings, will they change over? sorry for all the questions but I'm looking for a the quickest & simplest fix!

Counters, machine settings and hard drive format key are on the nvram among other stuff. it should stay with the machine it came with.

If you want the easiest fix of all use a brand new mfp board, drop it in, update firmware and away it goes.

[copier tech]

Re: C280 dots all over prints

Thanks, but do I need to take the NVRAM off the dead c280 board & fit it to to used good MFP board!?

[copier tech]

Re: C280 dots all over prints

I have removed the complete cage with the two boards, if I was to fit this would this swap the serial number & counters? Where are these held, the small square board in my picture? This is the first time i've had to swap boards on a KM so am a little nervous!

image.jpg

[habik]

Re: C280 dots all over prints

I have removed the complete cage with the two boards, if I was to fit this would this swap the serial number & counters? Where are these held, the small square board in my picture? This is the first time i've had to swap boards on a KM so am a little nervous!

[ATTACH=CONFIG]26991[/ATTACH]

Swap just the MFP board and keep the original NV RAM from your broken machine. As this image problem is most likely caused by MFP printer board logics. (Static electricity/ Power surge/ Several switch OFF/ON by the power socket or unplugged by cleaner to plug their vac.
Btw, there is a bit more than to changing MFP+NV RAM at the same time... as there is link to few more service board and IU's etc..

Just do as EarthKmTech recommended! Simple

Don't you have a Parts Manual?

[copier tech]

Re: C280 dots all over prints

Thanks for all the advice.
I swapped the complete cage with all boards in it, this fixed the fault however it now has the serial & meter from the other machine.
I guess I should have just fitted the MFP board as sugested!
If I need to put the original serial back do I just need the fit the original nvram back? & is this the nvram in my pic below?

[minimerlin]

Re: C280 dots all over prints

Thanks for all the advice.
I swapped the complete cage with all boards in it, this fixed the fault however it now has the serial & meter from the other machine.
I guess I should have just fitted the MFP board as sugested!
If I need to put the original serial back do I just need the fit the original nvram back? & is this the nvram in my pic below?

That finger is not pointing at the NVRAM mainly because the NVRAM is mounted on the MFP PWB which is the board to the left of the PRCB which is clearly marked on your picture. Do you not have a service manual?