DF Skewing on MPC 3003

[JayPaul]

Hi all,

Having a problem where customer does a lot of design work, writes over the original then copies that sometimes up to 3 times. Each time he copies it and measures with trianglular ruler the lines skew further and further away.
Copies are done via DF portrait way up. Although when I tried it, it also does it from the glass. I thought this would be a case of someone leaning on machine so I would have to lift the front left corner of the scanner up.
But before I did that I checked the master print and that was very slightly misaligned, barely noticeable but not perfectly straight.
I cleaned out whole DF as general service anyway and checked lamps, couldn't see any faults. When scanning the image through DF landscape it makes the problem a lot less noticeable.
Do you reckon it is still a case of lifting the corner of the scanner up, I don't want to make it worse if it is a different fault entirely.

Thanks

[Mark Bbb]

Re: DF Skewing on MPC 3003

Mostly there is always a little skewing, both copy or printing.
You can increase the paperbuckle at registration.

[JayPaul]

Re: DF Skewing on MPC 3003

Adjusted paper buckle but made no improvements. Updated firmware for the sake of things. Tried lifting the scanner up a bit.
I am swapping out the whole DF soon for constant paper jam problems, the location it is in is heavy with dust from constant saws and woodworking and I think it is starting to take its toll. So after that I will go back through service mode and try to calibrate it as close as I can get.

[Phil B.]

Re: DF Skewing on MPC 3003

Adjusted paper buckle but made no improvements. Updated firmware for the sake of things. Tried lifting the scanner up a bit.
I am swapping out the whole DF soon for constant paper jam problems, the location it is in is heavy with dust from constant saws and woodworking and I think it is starting to take its toll. So after that I will go back through service mode and try to calibrate it as close as I can get.

a difference of 2mm is 'normal'
now if you take original..copy it is the 2mm off... then you take that copy and make a copy 2mm more and on and on.

the machine isn't at fault it's your dumbass customer!

[JayPaul]

Re: DF Skewing on MPC 3003

I tried to be clever with it and thoguht if it bends towards the left by 2mm when I copy it again upside down in theory it should bend back 2mm. Instead it didn't do that but I don't think it made it worse. I think we both know if I told him what you just said I will be met with 'But it never used to do that/ the last machine never did that'
If the whole line moved 2mm it wouldn't really matter but it's the fact a 7 inch line starts in the same place as the mater copy but ends 2mm off, then the next copy starts in the same place and bends 4mm. So a square shape becomes a rhombus type shape if that makes sense.

[Phil B.]

Re: DF Skewing on MPC 3003

I tried to be clever with it and thoguht if it bends towards the left by 2mm when I copy it again upside down in theory it should bend back 2mm. Instead it didn't do that but I don't think it made it worse. I think we both know if I told him what you just said I will be met with 'But it never used to do that/ the last machine never did that'
If the whole line moved 2mm it wouldn't really matter but it's the fact a 7 inch line starts in the same place as the mater copy but ends 2mm off, then the next copy starts in the same place and bends 4mm. So a square shape becomes a rhombus type shape if that makes sense.

ok that problem IS explained in the SM