[Error Code] Bizhub C451 Near Trouble Code(s)

[macjax]

I would like to thank everyone who takes time out to post answers to my questiosn. It is greatly appreciated ! You all have been a tremendous help and I really can't thank you enough. I now have my C451 pretty much working with a few issues that I am posting below. Again, thank you all !!

I Basically have 2 questions. My C451 is finally up and running but I have an issue with printer anything with the color red. Everything red on a image seems to print yellow. Seems like there is basically no red in any of my copies. After playing around with it, I noticed a message that says this below:

X3eTY-D494

Near Trouble

P7/P21

61643MB

I am not sure if this message is related to the lack of red or better yet, the missing red from my copies or if it's something totally different.

Any help in this matter is greatly appreciated !!!!!!

[allan]

Re: Bizhub C451 Near Trouble Code(s)

The machine works with 2 images density sensors underneath the transfer belt on the doors side. This set the density and the color registration.
P-7 would pop up if magenta goes missing as per your description. only yellow shows because magenta completes the overlay mix to make red.
P-21 pops up because color registration can not be done with one color missing.

Remove and reseat your Magenta Image unit.
How old are the units if they are run down you have to replace them.

If you go into service mode -> tests mode -> halftone pattern -> CMYK it would produce a half tone of each primary color, that would give u an idea of quality of the image unit. That is if it produces any color at all.

Do that and upload images.

[macjax]

Re: Bizhub C451 Near Trouble Code(s)

Thanks Allan for the info !

I am not sure how old the imaging unit is. I did remove it and re-seated it. Still has same issue.

Is there anyway for me to tell with the menus on how old the Magenta unit is?

Also, how to I get into the service menu to test ? I thought it was to press and hold the UTILITY/COUNTER button but that just takes me to a page that says "SERVICE RESET" >>> OK..

Thanks !!!!!!!

[macjax]

Re: Bizhub C451 Near Trouble Code(s)

IMG_2087.JPG

Actually found this and attached a pic..


Thanks !!!

[allan]

Re: Bizhub C451 Near Trouble Code(s)

If the unit was reset then that bars does not mean anything.
Goto utility -> counter -> details.
Then press "stop" "0" "0" "Stop" "0" "1" to get service mode. Dont mess around with the setting there.

Goto -> test mode -> halftone pattern. Touch CMYK and press start make sure there is paper in the machine this will produce full coverage pages of CMYK.

This would give you an idea of the state of the image units.
Take snap shots and post that.

[habik]

Re: Bizhub C451 Near Trouble Code(s)

[ATTACH=CONFIG]28089[/ATTACH]

Actually found this and attached a pic..


Thanks !!!

You have used 20% of your Magenta IU. However, have you chipped the imaging unit by any chance, or someone else? Do as Allan suggested and see if the halftone print is solid. If it ain't then try and clean the Laser Window for each of the colors. There is a Tool (stick with a pad) in Tray 1 or tray 2 under a cover (near handle) . Open the IU section - remove waste box and look for a gap under neath the IU where you can put the stick with pad first Give it a good shafting and put everything back and try again.

If that doesn't work then your IU might be shot or just lacking of toner supply.

[macjax]

Re: Bizhub C451 Near Trouble Code(s)

If the unit was reset then that bars does not mean anything.
Goto utility -> counter -> details.
Then press "stop" "0" "0" "Stop" "0" "1" to get service mode. Dont mess around with the setting there.

Goto -> test mode -> halftone pattern. Touch CMYK and press start make sure there is paper in the machine this will produce full coverage pages of CMYK.

This would give you an idea of the state of the image units.
Take snap shots and post that.

Thank you !! I seem to be having a problem locating the test page. I attached the a pic of the menu I see but can't find the counter or details buttons.

IMG_2089.JPG

[habik]

Re: Bizhub C451 Near Trouble Code(s)

Its there think of a synonym for counter!


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[macjax]

Re: Bizhub C451 Near Trouble Code(s)

Hey, Sorry for the delay in response but today I finally had some time to fool around with the copier. I copied a Netflix envelope. As you can see in the picture, most of it is yellow and it should be red. Any ideas of what I should replace to fix this ?

Thanks !!!!!



IMG_2192.JPG

[wseyller]

Re: Bizhub C451 Near Trouble Code(s)

Could be the laser glass needs cleaning. Could be the magenta IU is shot. Assuming the laser is not an issue run a halftone of the magenta and stop the copier to see if you find coverage on the drum. If not first change the IU. If good on the drum see if it is good on the belt. If good then maybe the transfer roller is the issue.

Those are just some basics but should point you in the right direction .

[macjax]

Re: Bizhub C451 Near Trouble Code(s)

Could be the laser glass needs cleaning. Could be the magenta IU is shot. Assuming the laser is not an issue run a halftone of the magenta and stop the copier to see if you find coverage on the drum. If not first change the IU. If good on the drum see if it is good on the belt. If good then maybe the transfer roller is the issue.

Those are just some basics but should point you in the right direction .

Thanks wseyller !!

It seems to print exactly like this (front starting red then the rest of the image going yellow) every time I copy this Netflix envelope. If it was the IU, then wouldn't it be more random in terms of where the red shows yellow ?

Also, I was told that there was nothing wrong with this copier when I acquired it. Is it possible this started happening from the unit being transferred ? If so then is there maybe a common issue that causes this when these units are transferred ?


Thanks, again ...

[wseyller]

Re: Bizhub C451 Near Trouble Code(s)

It is hard to tell with your test image. Get some 11x17 and go to service mode and then the test mode then halftones and run them. This will be much more useful to us I promise. The troubleshoot steps I gave are what is called a half stop test and is best used with the halftone test. You could open the front door for example to jam the copier when it is laying toner down on each component. This will help eliminate components involved in the electro photographic process. Sure it could be caused when the copier is moved. There is also high voltage involved to create the charges needed and there could be an electrical contact issue. But you first need to figure out at which component the toner does not transfer.

I recommend following these suggestions are you may be just chasing your tail.

[Albonline]

Re: Bizhub C451 Near Trouble Code(s)

Hey, Sorry for the delay in response but today I finally had some time to fool around with the copier. I copied a Netflix envelope. As you can see in the picture, most of it is yellow and it should be red. Any ideas of what I should replace to fix this ?

Thanks !!!!!



[ATTACH=CONFIG]28600[/ATTACH]

they are telling you what you need to do to identify the problem area, my suggestion, change the tech working on this, as he can't or won't follow directions.

[macjax]

Re: Bizhub C451 Near Trouble Code(s)

they are telling you what you need to do to identify the problem area, my suggestion, change the tech working on this, as he can't or won't follow directions.

What are you talking about ? I am the person working on this copier. Isn't this what this forum is for ? To ask questions ?

[habik]

Re: Bizhub C451 Near Trouble Code(s)

What are you talking about ? I am the person working on this copier. Isn't this what this forum is for ? To ask questions ?

You like chasing your tail.

Where are the HALFTONE PRINTOUTS OF CMYK FROM THE SERVICE MODE???

you ask - we answer
You ask again - we answered again
We asked for one important bit and you can't deliver, because you like asking questions.
The lightbulb is not lit up fully. Thats your problem.


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