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Eifelaner
12-15-2020, 11:15 AM
Hello comrades

We have more and more problems with "spots", which are particularly noticeable in halftone printing. The error picture as shown in the appendix, yellow comes through in red print. It is similar with green.
The spots appear to be 99% of the time on magenta and cyan, which lack color. Although the TCR values all look normal. Do you know the symptoms or maybe even have a solution?


47611

Kind regards

tech51
12-15-2020, 05:59 PM
Latest firmware, function version 4.2 or later.

Service mode, image process adj, page 2, charge control, immediate adjustment, cmyk or k. Start.

Can be set to auto adjust Which will do adjustment for all colours when main power is switched on.

Theres a document on Knova about this.

Hope this helps.

blackcat4866
12-15-2020, 11:13 PM
It looks like magenta developing to me. Try these originals:

Eifelaner
12-16-2020, 07:41 AM
tech51
Latest firmware, function version 4.2 or later.

Theres a document on Knova about this.



Thank you Tech51, Firmware should be X4 and function version 4.2
Do you have a document code for me? i looked for something similar but was not able to find anything specific. Just that it has been implemented with the firmware



blackcat4866
It looks like magenta developing to me. Try these originals:



I will try these and report back, thank you Blackcat4866

Eifelaner
12-29-2020, 05:21 PM
i did play around with the voltages, with no satisfying results.

in the end i replaced, the developing units DV-313 and drum units DR-313 for cyan and magenta.
also a new transferbelt unit was needed.

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