Odd white rectangle in every copy

[mikeg1265]

Good day,

I came across a strange issue on a Sharp ARM-277. Whether the customer prints from ADF, Glass, or PC; the image or document produced is missing toner about a half inch by 3 inches in the upper right hand corner about an inch and a half down the right side of every page. I've changed the fuser, PCU parts, developer. I've cleaned the optics, mirrors, latest firmware, I've cleaned the glass, checked cables, I'm at a loss. I've never seen this before on any copier. If anyone has any ideas, I'd be grateful.

Regards,

Mike G.
Valley Imaging Solutions
Sierra Vista, AZ

[blackcat4866]

How do internal reports look? Prints? Scans? =^..^=

[mikeg1265]

How do internal reports look? Prints? Scans? =^..^=

Even reports, scans, images, forms, copies, they all have a white rectangle from right to left about 3 inches long x 1/2 inch

[blackcat4866]

1) I think I'd re-seat the ribbon cable to the laser
2) Replace ribbon cable
3) Replace laser

=^..^=

[ZOOTECH]

Even reports, scans, images, forms, copies, they all have a white rectangle from right to left about 3 inches long x 1/2 inch

Sounds like a label is stuck somewhere (usually on the drum or fuser roller), but you changed those parts; laser as BC says or IMC pwb.

[blackcat4866]

Sounds like a label is stuck somewhere (usually on the drum or fuser roller), but you changed those parts; laser as BC says or IMC pwb.

If it was a label, Zootech, it should appear twice on LTR or three times on LTR-R, repeating at 96mm intervals, and it would not stay at the leading edge. It would walk. =^..^=

[ZOOTECH]

If it was a label, Zootech, it should appear twice on LTR or three times on LTR-R, repeating at 96mm intervals, and it would not stay at the leading edge. It would walk. =^..^=

Thanks for waking me up - it's been one of those days when everyone has been on my arse about setups, shop repairs, and walk-ins.

[NeoMatrix]

Check the scanner rail is lubed and it doesn't jump upward/vertical due to gunk on the rail.
I have seen similar in dusty workshop machines.

[ZOOTECH]

Even reports, scans, images, forms, copies, they all have a white rectangle from right to left about 3 inches long x 1/2 inch

If it was a label, Zootech, it should appear twice on LTR or three times on LTR-R, repeating at 96mm intervals, and it would not stay at the leading edge. It would walk. =^..^=

Check the scanner rail is lubed and it does jump upward/vertical from gunk on the rail.
I have seen similar in dusty workshop machines.

From the above posts, it's not a scanner/optics problem; so, I'll go back to the IMC pwb as an option.

[brokey]

Check the memory on the IMC PWB