Sharp MX-B402 Glass Fogging

[CopierTechLady]

Hey Sharp guys, has anyone had the underside of the scan glass get fogged ( on a MX-B402)? I just a week ago disassembled (to get to) and cleaned the underside of the glass. It is starting again. Any ideas why it might be happening, what seems to be so frequent, or at all for that matter. Machine is installed in a nice clean office, so I don't believe it has anything to do with the environment.

Appreciate any input.....thanks.

[driving lots of miles]

Re: Sharp MX-B402 Glass Fogging

We have quite a few of these machines still out and I agree that the glass is difficult to get off for cleaning. I have two thoughts, one that the paper has a lot of moisture and it is steaming from the fuser and the other thought is a chemical they are using to clean the machine or the environment around the machine or office due to covid.

[mojorolla]

Re: Sharp MX-B402 Glass Fogging

Very common on these boxes. Simply dis-assemble the entire top half of the machine, remove the ADF and scanner, remove the platen and clean.
Easy peasy !
I cringe every time I walk in and see that haze.
I also believe the fuser causes this as the fan is on the rear frame, not above the fuser.

[Phil B.]

Re: Sharp MX-B402 Glass Fogging

Very common on these boxes. Simply dis-assemble the entire top half of the machine, remove the ADF and scanner, remove the platen and clean.
Easy peasy !
I cringe every time I walk in and see that haze.

you might want to try RainX Antifog...

clean glass apply rainX .. worked for me years ago on a Ricoh is a chemical environment

reduces build up

[mojorolla]

Re: Sharp MX-B402 Glass Fogging

you might want to try RainX Antifog...

clean glass apply rainX .. worked for me years ago on a Ricoh is a chemical environment

reduces build up

I have done this on the slit glasses but never the underside of a platen. In these boxes, I fear the RainX would pool the moisture into droplets and then drip onto the lower scanner components

[Phil B.]

Re: Sharp MX-B402 Glass Fogging

I have done this on the slit glasses but never the underside of a platen. In these boxes, I fear the RainX would pool the moisture into droplets and then drip onto the lower scanner components

i never had that happen.

just remembered I used this trick on a copier just between the freezer and fridge units at the Winn Dixie distribution center when it was in Raleigh.

[CopierTechLady]

Re: Sharp MX-B402 Glass Fogging

you might want to try RainX Antifog...

clean glass apply rainX .. worked for me years ago on a Ricoh is a chemical environment

reduces build up

Thanks, Phil for the suggestion.

[Phil B.]

Re: Sharp MX-B402 Glass Fogging

Thanks, Phil for the suggestion.

you're welcome Lady!

[CopierTechLady]

Re: Sharp MX-B402 Glass Fogging

Very common on these boxes. Simply dis-assemble the entire top half of the machine, remove the ADF and scanner, remove the platen and clean.
Easy peasy !
I cringe every time I walk in and see that haze.
I also believe the fuser causes this as the fan is on the rear frame, not above the fuser.

Easy Peasy....HaHa....very funny!!

Thanks, for responding and confirming it is a common issue on these machines.

[blackcat4866]

Re: Sharp MX-B402 Glass Fogging

On Kyocera KM2050 family machines the underside of the slit glass becomes hazed with ozone, directly over the fuser. On those machines, we would use self-adhesive mylars to seal up the openings into the bottom of the scanner optics. Additionally, I would use self adhesive foam seals on the left side covers, because the covers seemed to channel the air directly onto the slit glass. Once the scanner was sealed up it took longer for the glass to haze.

I don't know if you can use that information, but it might be a help to you. =^..^=

[CopierTechLady]

Re: Sharp MX-B402 Glass Fogging

On Kyocera KM2050 family machines the underside of the slit glass becomes hazed with ozone, directly over the fuser. On those machines, we would use self-adhesive mylars to seal up the openings into the bottom of the scanner optics. Additionally, I would use self adhesive foam seals on the left side covers, because the covers seemed to channel the air directly onto the slit glass. Once the scanner was sealed up it took longer for the glass to haze.

I don't know if you can use that information, but it might be a help to you. =^..^=

Thanks, blackcat4866, for your response; some good tips to try. I had been wondering about possible ozone contamination causing the fogging.

[copiertec]

Re: Sharp MX-B402 Glass Fogging

It's not that bad to remove the top on the MX-B402 units after you have done a few. Like Phil B said, once you have access to the glass use some rain x under it, it seems to work pretty good on these units.

[CopierTechLady]

Re: Sharp MX-B402 Glass Fogging

It's not that bad to remove the top on the MX-B402 units after you have done a few. Like Phil B said, once you have access to the glass use some rain x under it, it seems to work pretty good on these units.

Thanks, copiertec...I am going back to this customer on Wednesday (Apr. 28), and plan on disassembling again and cleaning the glass then treating it with the Rain X. So, I guess I will soon see if this helps with the problem occurring on a less frequent basis.

[kp101]

Re: Sharp MX-B402 Glass Fogging

My Sharp rep told me years ago that it was from the glue used by the manufacture. It was fogged up brand new out of the box. So Brillianize the under side might help.

[CopierTechLady]

Re: Sharp MX-B402 Glass Fogging

My Sharp rep told me years ago that it was from the glue used by the manufacture. It was fogged up brand new out of the box. So Brillianize the under side might help.

Thanks, kp101 for your input. I have already been back to the original customer, cleaned the underside of the glass and used some Brillianize. (Someone else suggested the RainX, but I didn't have any; I do carry the Brillianize). I have not heard any thing since, from this customer ( and hope I don't for this same issue.)

Thanks, again!