[CQ] LSU or Something Else - ARM350N

[MFPs R Now PCs]

We have a Sharp AR-M350N that when making a copy or a print will:

1) shifts the copied original image to the left edge so far, the left side of the image is cut-off

2) "ghosts" the copied original image as an exact duplicate to the upper right of the original image but its very light and made of a lot of little dots

3) the "ghost" image will be turned at a 45 degree angle (sometimes)

4) there are black smudges (lots of little dots)

5) the copy/print is enlarged

Now, I believe its the LSU and the dead give away are the dots (black smudges and the ghosting) but others say its impossible for a failing polygon motor to cause enlargements

Your thoughts anyone? (Doesn't a slower spinning polygon mirror "stretch the image"?)

[igi]

Re: LSU or Something Else - ARM350N

hi
is self print from the copier does same problem?
if does laser/poligone unit most likely faulty.
cheers

PS-faulty poligone motor can cause funny outputs.

[lky1978]

Can put some sample to us?

[blackcat4866]

Re: LSU or Something Else - ARM350N

If it's second sides that have this most interesting quality problem you probably have a bad DF harness. See below:

Digital image breakup on 2nd side only of 2 to 2 duplex. Missing elements from first copy appear on next consecutive 2nd side (even with a different original). Broken up image is reduced by from 55% to 95% in feed direction only, crossfeed is always 100%. Defective DSPF harnass. Replace the DSPF harnass (DHAI-3166FC11).

Does that sound similar? =^..^=

[mad]

Re: LSU or Something Else - ARM350N

We have a Sharp AR-M350N that when making a copy or a print will:

1) shifts the copied original image to the left edge so far, the left side of the image is cut-off

2) "ghosts" the copied original image as an exact duplicate to the upper right of the original image but its very light and made of a lot of little dots

3) the "ghost" image will be turned at a 45 degree angle (sometimes)

4) there are black smudges (lots of little dots)

5) the copy/print is enlarged

Now, I believe its the LSU and the dead give away are the dots (black smudges and the ghosting) but others say its impossible for a failing polygon motor to cause enlargements

Your thoughts anyone? (Doesn't a slower spinning polygon mirror "stretch the image"?)

hi... i have the same problem but on different model... do you remember the solution?... thanks in avance!