[Misc] Sharp B455W printing completely blank

[txonsov2]

Good morning, I'm having a problem with a Sharp MX-B455W it is printing completely blank, the laser is tested, the developer, the imaging unit, fuser unit, we also have revised that move the gears of the machines and engines, I do not know if anyone, to had this kind of problem before, thanks in advance.

[Connor]

Not worked on one of these machines personally. but could be the belt not moving?

[txonsov2]

I do not know what you mean by the belt, this is a monochrome maauina if you mean the belt of the transfer 1st, in this case it does not have a transfer that has a roller and if it is proven that rotates, thank you very much for your answer.

[Connor]

oops i didnt see the model. Is the dev roller turning

[txonsov2]

Yep the dev roller turning.

[MunyLou]

upload page example

[Hart]

"the laser is tested, the developer, the imaging unit"
How ?
What about the transfer on the right door ? And the right door itself ?
SIM25-2 report around 128 ? The DV is plugged at the front (I'm can't remember if there is an error message ifnot) ?

[txonsov2]

I have tested the parts on another machine and successfully, if in the 25-2 simulation, the values are 130 or so.
If the DV is connected and on another machine it works perfectly.
I will try changing boards and the main drive, even if it is working.

upload example page, I cannot upload an example page because it is a blank A4.

[ihatefinishers13]

Approximate Page counts? If you've already ruled out the drum, dv, LSU by swapping them, then you could try wrapping a piece of ELECTRICAL tape around one spot of the charge roller, and make ONE COPY, and see if it produces a black line. If it doesn't produce anything, you're not getting a charge, just MC PWB. If you get a line, you have charge, but the MFP board isn't telling the LSU to write the image. Had it on a 5071 that only had a couple hundred on it, a month into the field.

[txonsov2]

Very well I will try this method, thank you very much the copies of the machine are 50,000, I intend to try with MC PWB, thanks to all I will keep you commenting.

[fireater]

cant remember is there a shutter on that laser?

[ihatefinishers13]

cant remember is there a shutter on that laser?

It's possible, but that small, plus it's B/W, not sure it would. Good thought!

[txonsov2]

The problem is fixed guys, the problem was in an internal part inside the main drive unit a former colleague changed it without informing or leaving a record of it then everything turned but when you put the parts in it did not work because of the force applied.
image.png
These are the missing pieces. Thank you all very much!

[JLSam]

The problem is fixed guys, the problem was in an internal part inside the main drive unit a former colleague changed it without informing or leaving a record of it then everything turned but when you put the parts in it did not work because of the force applied.
These are the missing pieces. Thank you all very much!

Thank you for finishing the thread.

I would have been PISSED. ?

No leaving of records? Nah, that sh't don't fly.
Even when I make a mistake, or I do some mickey mouse play I always comment on the work order.