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Alert specifies Cyan IU over life limit. What does that mean?

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Posted on Jan 02, 2017

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SOURCE: Alert comes up that says yellow IU over life limit

what machine do you have?
si

Posted on Jul 03, 2009

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I have c451 giving me heavy cyan background at the edges that suppose to be white after printing. What's the cause and what's the solution pls


First check the Laser window cleanliness,
Then check the IU-Cyan and its charging grid cleanliness.

also try in service mode-Image Processing Adjustment-
Background voltage value can be increased.

Dec 30, 2016 | Konica Minolta Bizhub C451 Copy-print-scan

1 Answer

Bizhub c350


Before replacing the IU select Utility - Meter count - Check details- Stop 00 Stop 01,enter 00000000 END,select Tech.Rep.Mode - Counter - Special parts counter-PC life.Press the Clear key to clear the counter value.Select IC life and clear the counter value.Turn OFF the copier and remove IU unit.After installing the new IU unit select Tehc.Rep.Mode -Function-F8 and press START.After 2 minutes the developer is initialized to make a copies. fcf3fced-96eb-4483-840f-8de548aa8045.jpg 378b39ea-2f19-4cf6-887c-617430da4931.jpg

Jul 14, 2014 | Konica Minolta bizhub 350 All-In-One Laser...

2 Answers

How can I solve error code c255A



From another site

Details Subject:
C-255A (C255A), C-255B (C255B), C-2559 (C2559) or C-255C (C255C) at power up.
Description:
C-255x code at power up.
Solution:
CAUSE: The K (black) IU (C-255C) has failed. The M (Magenta) IU (C-255A), Y (Yellow) IU (C-255B) or C (Cyan) IU (C-2559) is not fully seated or has failed.

SOLUTION: Replace the K (black) IU (Item #A0DE02F for the bizhub C203/C253 and Item #A0DE03F for the bizhub C353). Reseat the color IU and if the problem persists, replace it. Item # Color IU Model
A0DE0CF Magenta bizhub C203/C253
A0DE0DF Magenta bizhub C353
A0DE06F Yellow bizhub C203/C253
A0DE07F Yellow bizhub C353
A0DE0HF Cyan bizhub C203/C253
A0DE0JF Cyan bizhub C353
SPECIAL NOTE: Solution contribution by Tom Kelly, Workgroup/SSD

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None Specified Details Subject:
After toner installation, C255x code within a few hundred prints.

Description:
C2551, C2553, C2555 or C2557 codes.
Solution:
CAUSE: Toner is not supplied due to abnormal position of coupling.

Normal condition The coupling is blocked by bracket

May 03, 2014 | Konica Minolta bizhub C250 All-In-One...

1 Answer

Colour misregistration mystery


Various possible causes - the most likely are :
1. Dirty registration sensors - remove IUs and transfer unit and inspect / clean sensors.
2. Damages / worn IU drive gears - inspect. Replacing the gears isn't a small job, if this is your problem.
3. Faulty colour registration shutter - you can check this is working in the service diagnostics menu.
4. EEPROM problem on the controller board - replace main controller board.
These are in order of likeliness. For further information, take a look here.

Nov 25, 2012 | Xerox Phaser 7300DN Laser Printer

3 Answers

Conversion of mu into iu


Hi, ibmpl,

I think I know what you are referring to! Sorry for the delay in responding to your question. Apparently, by mu you mean millimicron. Perhaps because of a limitiation in the formula editor for posting your message, you were not able to write the Greek symbol for micron.dubblea_8.jpg The "m" in front of the above symbol represents one-millionth of a micron, that is, 10^-6 micron.

The symbol IU is much easier to write in this forum, and means "International Unit." Unfortunately, the IU is not really a standardized international unit that can apply to any substance equally. It is not a part of the SI system (metric system of units), that is based on units of ten from the exceeding small to the exceedingly large, and which is firmly standardized across all chemical substances.

For example, 1 IU means something different depending on the substance. Here is a revealing list of well known substances and their different definitions for 1 IU:

  • 1 IU for Insulin = 45.5 micrograms pure crystalline insulin.
  • 1 IU for Vitamin A = 0.3 microgram of retinol or 0.6 microgram beta-carotene.
  • 1 IU for Vitamin C = 50 micrograms of L-ascorbic acid.
  • 1 IU for Vitamin D = 0.025 microgram cholecalciferol.
  • 1 IU for Vitamin E = 0.667 microgram d-alpha-tocopherol.
The reason for this range of values for the IU is its being based on a measured biological effect for each of these substances. That is, 1 IU has a different magnitude of physiological effect depending on the substance (often a drug, hormone, vitamin, or medicine).

Now, what I am going to say might be a disappointment to you: You cannot relate the millimicron to the IU no matter what substance you are describing. The reason is they are in different categories of measure. The millimicron is a metric system of LENGTH. The IU is based on measures of MASS. To convert one to the other they need to be in the same category of measure, length to length, or mass to mass. One COULD convert quantity of length to a quantity of mass, but only if you first convert either length to mass, or mass to length; but that would require the very inconvenient use of additional data, such as surface area and density of the substance of interest - a consequence too impractical for common use.

Jun 19, 2010 | Scientific Explorer My First Chemistry Kit

1 Answer

Large Toner Streak... Bad Imaging Unit?


Check to see if you waste toner recycling for the cyan is working or being blocked. Check the transfer bias roller next to the cyan drum. Return you cyan imaging unit for a warranty replacement. Check for obstructions to the cyan developing unit. Check that the cyan IU was put into the machine properly. Check for toner leaking from the entrance to the developing unit or from the toner cartridge.

or, call a qualified KonicaMinolta tech to check out and service your machine.

Sep 12, 2009 | Konica Minolta Office Equipment & Supplies

2 Answers

Error code c0f30


SOLUTION: Check the amount of toner in the affected unit and if empty, check the alignment of the toner sensor actuator arm. It is possible that the arms may have been jarred out of alignment during shipment and fail to sense the low/empty toner condition. This in turn, causes the IU to drop below the proper toner-to-developer ratio resulting in C-0F3x codes. Once the actuator has been properly positioned, run ATDC toner supply until the T/D ratio comes back into the specified range.
hope that help


or try to reset the machine.........

Aug 06, 2008 | Minolta CF2001 Copier

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