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rodrigo neres
11-18-2012, 02:08 PM
Gentlemen, good morning

konica C6500

I have a problem a few weeks. tone in the middle (yellow) density of 85% in overall profile of the output command workstation, generates some yellowish stains me like a drained by the image.

ja sent as line 1, 2; dot 1 and 2 and the problem persists.

put images in Annex 2. I do not know if the picture to identify.

cylinders 35%
developer 65% (developer (powdered)
​coronas 5%transfer belt 60%



adjustments performed:

1 - User setting total
2 - auto adjust gamma sensor (manager mode)
3 - toner density auto adjust, print quality, auto gamma adjustment,
4 - new cylinder - initial drum rotation
5 - exchange kit 200k and 100k
6 - use EFI expectometro 1000, already calibrated several times -
7 - moved to place the cylinders
8 - swapped paper because the fiber
9 - including standard recall new date and recalibration.

others, faithfully follow the directions of the transfer roller as technical manual (electronic contact side).

thank tips

11-19-2012, 06:33 AM
Try printing test pattern 53
output sheet with test pattern 53 Yellow set to 120 all others at 0
output sheet with test pattern 53 Magenta set to 120 all others at 0
output sheet with test pattern 53 Cyan set to 120 all others at 0
output sheet with test pattern 53 Black set to 120 all others at 0

Inspect these four sheets for uneven density. Looking at your samples i would suspect yellow devewloping unit fault
Hope that helps

rodrigo neres
11-20-2012, 12:35 AM
thank you

tomorrow and you'll notice these tests.

11-20-2012, 12:51 AM
One more tip that i used to use when trying to diagnose this fault is to use the Eye One share program (with an ES1000 or eye one spectro). I would measure the centre, and the edges of the test pages (in the main scan direction) and measure the delta e values at these points. It is sometimes difficult to diagnose by eye when evaluating these test patterns (especially yellow).

rodrigo neres
11-22-2012, 10:22 AM
hello Mick

as his tip, did the tests in halftone machine. everything went perfect!
passed to the second stage (Fiery pro80) = formatted the same system, solved!

probably had something corrupt in the system.

I appreciate the tip. Thanks
sorry for the English, do not have much practice, use google translate and help.

thank you friend

11-22-2012, 12:11 PM
Happy to help. Glad you resolved the issue.

rodrigo neres
11-22-2012, 04:50 PM
thank you

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