Bizhub C203 When Print 4 Color Problem

**kyo3919** · 10-08-2014

Hi all,
i have 1 problem like title above.When I print from pc to machine.It printing have 4 color ( CMYK),only margenta cannot come out real color.Pls refer the photo.Why?i had already change the drum unit and the PH unit,but still same problem.
.IMG-20141008-WA0000.jpg

**Blizzoo** · 10-08-2014

Remove Transfer Belt and check the position of 1st Transfer Roller on Magenta.
Clean and check HV contacts between IU and machine

How are internal prints and individual prints from SMode?

**minimerlin** · 10-08-2014

Originally Posted by kyo3919

Hi all,
i have 1 problem like title above.When I print from pc to machine.It printing have 4 color ( CMYK),only margenta cannot come out real color.Pls refer the photo.Why?i had already change the drum unit and the PH unit,but still same problem.
.IMG-20141008-WA0000.jpg

Is the Magenta unit actually rotating? have you done a hard stop to see if there is an image on the drum or transfer belt? Are you a tech or end user? Have you checked HV?

**kyo3919** · 10-09-2014

im tech.what is HV Contact?transfer belt have 4 roller of color?but i oredi change a new transfer belt unit.

**Josh93** · 10-09-2014

Faded magenta can indicate under toned developer, check your toner motors if possible, and ensure DEV is running as per normal (not familiar with Konica) see if you can run a color calibration or two from a service manual, this can force your machine to dump more toner into your DEV.

Removing toner and placing it back in the machine should also instigate the toner adding process, or at least attempt to.

Listen for the noise from the hopper or an "Adding toner message"

Replace DEV

**kyo3919** · 10-09-2014

Originally Posted by Josh93

Faded magenta can indicate under toned developer, check your toner motors if possible, and ensure DEV is running as per normal (not familiar with Konica) see if you can run a color calibration or two from a service manual, this can force your machine to dump more toner into your DEV.

Removing toner and placing it back in the machine should also instigate the toner adding process, or at least attempt to.

Listen for the noise from the hopper or an "Adding toner message"

Replace DEV

i already have change the DEV and toner,but still same.

**Cookr** · 10-10-2014

Had an issue similar to this but on yellow and it wasn't faded it was not showing up at all but it was the yellow transfer roller on the imaging belt was stuck down and not making contact with paper so I unstuck it and works great now and still was about 3 months ago.

**darry1322** · 10-10-2014

I've seen this same issue on cyan when the contact for the cyan transfer in the belt was bent. It was on a Kyocera, but the same concept applies here.

**kyo3919** · 10-11-2014

Originally Posted by darry1322

I've seen this same issue on cyan when the contact for the cyan transfer in the belt was bent. It was on a Kyocera, but the same concept applies here.

But i already change the whole unit of transfer belt ,the problem still same.and i also take out transfer belt unit to another machine,but it ok.