6002i light prints and nearly blank copies

[Scottb]

hello all,

so we got this gem in off the wholesale truck, and it had light internal prints. I figured, that it had been robbed of the good and replaced with old drums dv and such. I ordered a MK and installed ran u952 and no joy.
here is a list of other things that i have tried. Any other ideas would be appreciated...and the fix more so

MK
Cleaned Laser
Kyocera service navigation flow chart
engine pwb
feed image pwb
feed drive pwb(because it was easy and just to rule it out)
transfer high voltage pwb
302ND39170 base terminal HV
the complete conveying section
drum/developer pwb
the connector pwb for the transfer belt assy
replaced laser
Main pwb

[PrintWhisperer]

Did you check the Eco-mode setting?

’On’ will do that ‘light internal’ print thing

[darry1322]

Crash the machine in the middle of printing a skyshot and compare the images on the drum and belt. Might give you a hint as to where you're losing density.

[dalewb74]

in the cleaning process, you cleaned the optics?

[Scottb]

Did you check the Eco-mode setting?

’On’ will do that ‘light internal’ print thing

eco print is off

[Scottb]

Crash the machine in the middle of printing a skyshot and compare the images on the drum and belt. Might give you a hint as to where you're losing density.

It looks like there is plenty of image on the belt, so I guess that narrows down to the secondary transfer on the machine side because i did replace the whole conveying with a known working unit....

[Scottb]

in the cleaning process, you cleaned the optics?

actually no i have not cleaned the mirrors because i noticed the issue was still in the machine when I was in U952 doing the internal print calibrations. I just made a copy after the fact because I knew I would be asked if it did it on copies as well.
I did remove the laser and disassemble it and clean it so that was one of the first things done

[darry1322]

It looks like there is plenty of image on the belt, so I guess that narrows down to the secondary transfer on the machine side because i did replace the whole conveying with a known working unit....

Looks like you've changed all the parts responsible for second transfer HV, conveying unit). Probably going to be some issue in the circuit connections and contacts. Harness, springs, etc.

[Luther]

I would check for a bent pin in the side door connection on the machine side, it's easy to bend them and they may have been bent before you changed the conveyance section.

[blackcat4866]

Crash the machine in the middle of printing a skyshot and compare the images on the drum and belt. Might give you a hint as to where you're losing density.

That was my thought. Emergency stop the machine with a heavy fill image. Then check the latent image density at each drum and on the transfer belt. That will help you determine exactly when you're losing your image fill. =^..^=