5054ci dark lower left corner

[Scottb]

this machine originally had a C3800 error, and the lens corrected this issue. some weeks later i get a call saying that the lower left corner is dark from the glass only. I made several adjustments and ended up ordering another lens assy. after installation everything looked good no shading in the corner...until today. has anyone seen this and can share the fix .

[CoreyAbels]

this machine originally had a C3800 error, and the lens corrected this issue. some weeks later i get a call saying that the lower left corner is dark from the glass only. I made several adjustments and ended up ordering another lens assy. after installation everything looked good no shading in the corner...until today. has anyone seen this and can share the fix .

I just ran into this EXACT issue last week, still hunting for a resolution though. I will post an update when I have one

[Scottb]

I just ran into this EXACT issue last week, still hunting for a resolution though. I will post an update when I have one

Kyocera Tech support suggested, that if i had the original lens(which by chance i did) to remove the board from it, put the board from the new lens onto it, and reinstall the original lens with the new board. I just have done this and it appears to work, but the last one did for a few weeks.

[tmaged]

Did you use the charts and calibrate it in U411 after replacing the lens unit ?

[Ropariva]

I’ve had this when a machine has arrived damaged and the scanner assembly is no longer sitting flat on the frame. I found there is a wedge that adjusts the height of the scanner unit on the RHS. These units had been damaged. I replaced parts 2, 3 and 25 from a scrapped machine and it solved my problem.

[CoreyAbels]

Kyocera Tech support suggested, that if i had the original lens(which by chance i did) to remove the board from it, put the board from the new lens onto it, and reinstall the original lens with the new board. I just have done this and it appears to work, but the last one did for a few weeks.

The new ISU/Lens immediately produced this problem and after double and triple checking my ISU alignment I eventually swapped the new board into the old lens and the problem mostly went away (including the original C3800 error).

My coworker went out with a new ISU and cables and neither resolved the issue. It appears to me that the scanner isn't square and/or level but I haven't had a chance to go back out on the machine.

[CoreyAbels]

Did you use the charts and calibrate it in U411 after replacing the lens unit ?

Absolutely, and it failed both the Auto and Manual adjustment methods.

[CoreyAbels]

I’ve had this when a machine has arrived damaged and the scanner assembly is no longer sitting flat on the frame. I found there is a wedge that adjusts the height of the scanner unit on the RHS. These units had been damaged. I replaced parts 2, 3 and 25 from a scrapped machine and it solved my problem.

This tracks with the symptoms, however this machine has been in the field for 2+ years without issue up until the recent Main PWB and now ISU failure. I will have to check this when I go back out 👍🏻

[Ropariva]

This tracks with the symptoms, however this machine has been in the field for 2+ years without issue up until the recent Main PWB and now ISU failure. I will have to check this when I go back out 👍🏻

Someone copied their butt? 😂.
You may have success adjusting the sliding wedge. On mine I stripped off the scanner plastic covers and put a straight edge (long ruler) on LHS and RHS and sighting along the two the twist was obvious.

[tmaged]

I haven't seen it on the 4 series, but the scanner belt being too tight caused a similar issue on the 2 series.

[Scottb]

The new ISU/Lens immediately produced this problem and after double and triple checking my ISU alignment I eventually swapped the new board into the old lens and the problem mostly went away (including the original C3800 error).

My coworker went out with a new ISU and cables and neither resolved the issue. It appears to me that the scanner isn't square and/or level but I haven't had a chance to go back out on the machine.

Did you scribe the frame before removing the original lens. I have a habit of this from the Ye Olden days. Mine was a 4 but on the frame it was closer to the 3 mark.

[CoreyAbels]

Did you scribe the frame before removing the original lens. I have a habit of this from the Ye Olden days. Mine was a 4 but on the frame it was closer to the 3 mark.

In most instances, yes, but in this instance, I did not