Kyocera General Question

[BillyCarpenter]

Re: Kyocera General Question

PS - You can get crazy with it and kick the DV bias voltage up too high and you'll get whacked out looking colors. Don't do that. Anyway, like I said, I see no real reason to be changing the DC bias voltage unless it's a temporary fix because you don't have a belt in stock.

[KYO_OEM]

Re: Kyocera General Question

[QUOTE=BillyCarpenter;1687895]I've been running what I think are some interesting tests on the following machine:

Test: Transfer Belt.

With a good transfer belt I checked the following data:

U465/Stress --- Value = 2693
U465 - Stress. It must be higher than 2600. If the number is lower, the belt is worn or damaged.

Dear Billy,

you are right regarding "2693" = good value, but if value decreased to < 2600 you has inbuilt damaged belt isn`t true.
From my experience values >2200 are bad values and you can get quality problems!

From KDC, I've got following information.
Between Venus2/ Mercury2 and Iris1, they totally changed concept for this value.

Between Iris1,2 and Mercury3, the difference is only for indication digit.
Venus2/ Mercury2
Value 2000 - 2900
Iris1, 2
Value 50 - 500
Mercury3
Value 5000 - 50000

If you increase U140 you`ll get "better" printouts up to next auto calibration, and than it will change back because of U100/ Set AC Auto Adj/ "ON"

But never ever touch these 2 points to improve the quality.
You can do it for a short time only, to get the system working unitl you received the needed spareparts, but than you has to switch back.

[BillyCarpenter]

Re: Kyocera General Question

[QUOTE=KYO_OEM;1688759]

I've been running what I think are some interesting tests on the following machine:

Test: Transfer Belt.

With a good transfer belt I checked the following data:

U465/Stress --- Value = 2693
U465 - Stress. It must be higher than 2600. If the number is lower, the belt is worn or damaged.

Dear Billy,

you are right regarding "2693" = good value, but if value decreased to < 2600 you has inbuilt damaged belt isn`t true.
From my experience values >2200 are bad values and you can get quality problems!

From KDC, I've got following information.
Between Venus2/ Mercury2 and Iris1, they totally changed concept for this value.

Between Iris1,2 and Mercury3, the difference is only for indication digit.
Venus2/ Mercury2
Value 2000 - 2900
Iris1, 2
Value 50 - 500
Mercury3
Value 5000 - 50000

If you increase U140 you`ll get "better" printouts up to next auto calibration, and than it will change back because of U100/ Set AC Auto Adj/ "ON"

But never ever touch these 2 points to improve the quality.
You can do it for a short time only, to get the system working unitl you received the needed spareparts, but than you has to switch back.

My mistake. Stress must be between 2200-2900.

Regarding U140. I was following the instruction in the manual which say to increase MAG DC for a "bleached"/worn belt. I was curious so I installed a known worn belt and increased U140/Mag DC and it improved the quality. But I noticed that the value I input for U140/Mag DC would be overwritten if I ran calibration. In the end, I determined, like you, that this should only be done as a temporary solution until the replacement belt came in.

Not sure I'm understanding what you're saying about U100/Set AC Auto Adj/ON ? Can you explain further?


PS - Thanks for the Stress Values on the other series.

[KYO_OEM]

Re: Kyocera General Question

If you start up the system, it will check the drum surface for correct main hvt and other important values also.
e.g.:
if tech forgot to set U930 to "0" after installation from new BK drum unit, system is coming up with C 5101 after a while. ( inside from leaflet youll find that this setting must be done after installation.U119, U930, U464, U412, U464, U410)
System will increase needed voltages for MC, TR, 2nd TR, DVs depended to the counter.
MC with counter <100 needs lower power than MC with counter>100.000
If now new DK inbuilt and U930 wouldn`t set to "0" after installation, we get too high voltage on drum surface and C5101 will appear after a while!
All other voltages for components above would adjusted in the same way...
By the way:
if i get blank printouts, i remove the MC after switch off U100 to check if all needed voltages on DV are present...

[BillyCarpenter]

Re: Kyocera General Question

If you start up the system, it will check the drum surface for correct main hvt and other important values also.
e.g.:
if tech forgot to set U930 to "0" after installation from new BK drum unit, system is coming up with C 5101 after a while. ( inside from leaflet youll find that this setting must be done after installation.U119, U930, U464, U412, U464, U410)
System will increase needed voltages for MC, TR, 2nd TR, DVs depended to the counter.
MC with counter <100 needs lower power than MC with counter>100.000
If now new DK inbuilt and U930 wouldn`t set to "0" after installation, we get too high voltage on drum surface and C5101 will appear after a while!
All other voltages for components above would adjusted in the same way...
By the way:
if i get blank printouts, i remove the MC after switch off U100 to check if all needed voltages on DV are present...

I understand. Let me ask you this:


If I replace with a used dr/dv/pcr, I still need to run all the necessary adjustments as if they are new? Correct?

[KYO_OEM]

Re: Kyocera General Question

YES!!!
Same if you swap 2 DK,e.g. MG against CY
And very important:
never ever swap original from factory mounted yellow DK or yellow DK from maintenance kit against other DK. (On Venus series you`ll get background or other image failures)
Yellow DK would used for internal backup.
Visible by yellow mark on front.
Cyan Dk-blue mark, magenta DK-red mark, yellow DK-yellow mark and finally BK DK- white mark (only coming from factory and from Mk kit)
All later ordered service DKs get red mark from factory.

[BillyCarpenter]

Re: Kyocera General Question

YES!!!
Same if you swap 2 DK,e.g. MG against CY
And very important:
never ever swap original from factory mounted yellow DK or yellow DK from maintenance kit against other DK. (On Venus series you`ll get background or other image failures)
Yellow DK would used for internal backup.
Visible by yellow mark on front.
Cyan Dk-blue mark, magenta DK-red mark, yellow DK-yellow mark and finally BK DK- white mark (only coming from factory and from Mk kit)
All later ordered service DKs get red mark from factory.

I have some questions on this.


If I'm understanding this correctly, I should never swap the yellow drum with another color drum. But can I swap a yellow drum in one machine with a yellow drum in a different machine? And what's so special about the yellow drum?

[KYO_OEM]

Re: Kyocera General Question

Don`t touch the yellow drum marked with a yellow dot.
Don`t use it in other system on yellow position, if it would done in past you can get image quality problems because the yellow drum would used for internal system back up data.
We also have had a few cases with C9540 because all 4 drums would swapped mistakenly after cleaning.....
(yellow on BK position, magenta on cyan position and so on.)
If this kind of DK is broken, use new service DK unit with red mark.

[KYO_OEM]

Re: Kyocera General Question

i found old information from KYO regarding mounting positions from DK units on Alphard/ Venus series

DK-Y.JPG

[BillyCarpenter]

Re: Kyocera General Question

i found old information from KYO regarding mounting positions from DK units on Alphard/ Venus series

[ATTACH=CONFIG]48393[/ATTACH]

Thank you for the information, KYO. You've been a great help to me.

[Mostafa Mostafa]

Re: Kyocera General Question

I am pretty sure I got lots of useful information in this post .
which really helps me to bypass faint image especially up top of printout
Transfer Belt is really a serious problem that affects image quality.
Thanks to you all I could bypass my problem for now.

[BillyCarpenter]

Re: Kyocera General Question

I had forgotten about this thread. Lots of really good information. There's so many members on here that are helpful. Thank you guys once again.