blk IU

[mike cooper]

I have c451 that will not reconize blk IU any help

[EarthKmTech]

Re: blk IU

What is the error message ?

Where did you get the IU ? Did you get it locally or overseas ?

[mike cooper]

Re: blk IU

What is the error message ?

Where did you get the IU ? Did you get it locally or overseas ?

It is local I have tryed 3 different units all do same the last one I put in was new

[mike cooper]

Re: blk IU

There is no error code had tech come look he replaced 2 sensors this did not fix problem
he had no idea his sug was to replace terminal where IU plugs into machine
any one got any suggestions

[mike cooper]

Re: blk IU

I have replaced power supply board and high voltage board still will not reconize blk image unit any one have other suggestions need help

[allan]

Re: blk IU

Check where the drum chip connects to the dev tank.

[Synaux]

Re: blk IU

What this machine just shipped to you? It might of gotten twisted...causing the chip to not to align correctly.


Also, consider the Lock Plate mod (A00J P331 00) mod (or just put a PH cleaning pad from tray 1/2 between the latch and the IU)

[mike cooper]

Re: blk IU

Put lock plate mod in also tried the cleaning pad in lock machine has been here over 1 year

Have not tried firmware yet thanks for info all help is greatly appreciated

[Synaux]

Re: blk IU

Put lock plate mod in also tried the cleaning pad in lock machine has been here over 1 year

Have not tried firmware yet thanks for info all help is greatly appreciated

Well...

The contacts on the IU are not making an adequate connection (somethign bent, broke, et cetera).

A wiring harness has been damaged.

You need to replace a board--I would suspect HV1 board, but if the Cyan IU is working that means the HV1 board is half-working??
(I am going off memory here--it might be the HV2 board for K and Cyan...)

[allan]

Re: blk IU

Are u using the Right step screw to fix the IU in place, Got the wrong screws in there before causing the same thing. Push the Iu in place without the screw, close the machine up and see what happens.

[Synaux]

Re: blk IU

Oops you already replaced a HV board.

Which one did you replace and was it replaced specifically due to the issue?

[mike cooper]

Re: blk IU

Is the hv1 board not the high voltage board I have replaced this one

[mike cooper]

Re: blk IU

It was for this issue

[Synaux]

Re: blk IU

Is the hv1 board not the high voltage board I have replaced this one

There is a High Voltage Board 1 (HV1) and a High Voltage Board 2 (HV2). If you replaced HV2 it would not help your issue.

[mike cooper]

Re: blk IU

I replaced the one with the K M C Y emblems on it