c3350i toner line in middle of transfer belt

[CLouw]

Carlos Louw
Good day everyone

i have a c3350i that when i do gradation the page comes out with a line of toner in the middle of the gradation pattern and demo pages has a color shift,please see attached


i have taken out the transfer belt and cleaned the cleaning blade and i have swapped the transfer belt with a spare one and taken out the ph unit and cleaned it and i have replaced the idc sensor and i have done the color registration adjustment which has taken away the color shift
SKM_C250i24092708180.pdf

has anyone encounter this problem?

[elmaligno]

carlos louw
good day everyone

i have a c3350i that when i do gradation the page comes out with a line of toner in the middle of the gradation pattern and demo pages has a color shift,please see attached


i have taken out the transfer belt and cleaned the cleaning blade and i have swapped the transfer belt with a spare one and taken out the ph unit and cleaned it and i have replaced the idc sensor and i have done the color registration adjustment which has taken away the color shift
skm_c250i24092708180.pdf

has anyone encounter this problem?

i've encountered it several times on a3 machines, and it was always the belt cleaning blade.

[CLouw]

i've encountered it several times on a3 machines, and it was always the belt cleaning blade.

ive cleaned the cleaning blade and swapped it with another one and still getting the same result and thing else i could maybe try?

[tsbservice]

Those are well known for bad IUs what are your TCRs?

[CLouw]

Those are well known for bad IUs what are your TCRs?

k-6.41%
c-8.72%
m-7.28%
y-6.83%

[tsbservice]

Update firmware.
Shake the cyan drum unit for 10 times, and print 30-50 internal full color test pages followed by the high agitation speed function.

[copier tech]

Carlos Louw
Good day everyone

i have a c3350i that when i do gradation the page comes out with a line of toner in the middle of the gradation pattern and demo pages has a color shift,please see attached


i have taken out the transfer belt and cleaned the cleaning blade and i have swapped the transfer belt with a spare one and taken out the ph unit and cleaned it and i have replaced the idc sensor and i have done the color registration adjustment which has taken away the color shift
SKM_C250i24092708180.pdf

has anyone encounter this problem?

From your picture the blade is not cleaning the belt, most likely worn as is the 2nd unit you fitted.

Fit a NEW transfer unit not a used one.

[Max]

The line in the middle is the colour /reg calibration patten. That's how it supposed to look like. If that was the blade issue, the line would be smeared, this one is perfectly defined.
Print out solid test pages, see which IU is playing up. Cyan tcr is tad too high but not critical. Laser glass cleaned?

[4Toon]

The line in the middle is the colour /reg calibration patten. That's how it supposed to look like. If that was the blade issue, the line would be smeared, this one is perfectly defined.
Print out solid test pages, see which IU is playing up. Cyan tcr is tad too high but not critical. Laser glass cleaned?

If you manually turn the transfer belt does it clean that stabilize line off or does it stay on the belt? The IU units on this unit is just as bad as the transfer belt and waste toner bottles they all break or fault out. They have a 60 day warranty on all theses parts for a reason and not a counter.

[CLouw]

The line in the middle is the colour /reg calibration patten. That's how it supposed to look like. If that was the blade issue, the line would be smeared, this one is perfectly defined.
Print out solid test pages, see which IU is playing up. Cyan tcr is tad too high but not critical. Laser glass cleaned?

hi yes, I've cleaned the laser glass
that line only cleans off my transfer belt after a few prints
any setting i can do to make the line go away?

[CLouw]

If you manually turn the transfer belt does it clean that stabilize line off or does it stay on the belt? The IU units on this unit is just as bad as the transfer belt and waste toner bottles they all break or fault out. They have a 60 day warranty on all theses parts for a reason and not a counter.

it stays on the belt when i manually turn it but it starts cleaning it away when i take off the cleaning blade and clean it again

[4Toon]

it stays on the belt when i manually turn it but it starts cleaning it away when i take off the cleaning blade and clean it again

Something is wrong with the belt itself then. I would replace the whole belt

[femaster]

If you manually turn the transfer belt does it clean that stabilize line off or does it stay on the belt? The IU units on this unit is just as bad as the transfer belt and waste toner bottles they all break or fault out. They have a 60 day warranty on all theses parts for a reason and not a counter.

If you are in the US (not sure if it applies to other countries), KM has put the image units of a number of the desktop sized machines into the YPP warranty mix so they can be claimed under a page count. None of the other items however, just the image units. I have no idea what the expected life is on them, or how the percentage of credit breaks vs page count breaks down for them, but so far any that I have claimed have always been a 100% credit.

These are the desktop models I can see under the YPP list for us:
4700i
4750i
C3300i
C3320i
C3321i
C3350i
C3351i
C4000i
C4001i
C4050i
C4051i