MX7090 MX8090 H3-01 & H3-02 Errors

[gmoore081]

Good Moring Sharp Forum

I'm putting this post out there to see if anyone else is experiencing this issue

We have about 6-7 of these devices out there regularly doing H3-01 & H3-02 - some from brand new out of the box

So far we have done the following
H3-01 - replaced both non contact & contact thermistors to the pressure roller & pressure roller lamp

H3-02 - replaced the 2 non contact thermistors & contact thermistor to the belt & the belt lamps

Also on some of these fuser units the connectors have been cleaned

Also tried a different refurbished fuser unit & on anther a new fuser unit

We can see in SIM44-14 that the thermistors are reading too high a temperature. While in this SIM & with the side door open some of the thermistor readings are stuck on the same temperature & don't cool down as expected

Our next step is to order a PCU board & see what this does

Any information from this forum would be appreciated, if you've experienced this issue too

Thanks in advance

Graham

[OlliK1969]

Hi

there was a tech bulletin for Griffin2/Phoenix2 from March 2020

There is a cleaning tool for the pins of the fuser unit and the pins inside the maschine.

Sound like the same think

Huby-340 is this cleaning tool

[gmoore081]

Hi

there was a tech bulletin for Griffin2/Phoenix2 from March 2020

There is a cleaning tool for the pins of the fuser unit and the pins inside the maschine.

Sound like the same think

Hi Olli

Thanks for your post, however I have tried this already

Regards

Graham

[Chr15tophe]

Good Moring Sharp Forum

I'm putting this post out there to see if anyone else is experiencing this issue

We have about 6-7 of these devices out there regularly doing H3-01 & H3-02 - some from brand new out of the box

So far we have done the following
H3-01 - replaced both non contact & contact thermistors to the pressure roller & pressure roller lamp

H3-02 - replaced the 2 non contact thermistors & contact thermistor to the belt & the belt lamps

Also on some of these fuser units the connectors have been cleaned

Also tried a different refurbished fuser unit & on anther a new fuser unit

We can see in SIM44-14 that the thermistors are reading too high a temperature. While in this SIM & with the side door open some of the thermistor readings are stuck on the same temperature & don't cool down as expected

Our next step is to order a PCU board & see what this does

Any information from this forum would be appreciated, if you've experienced this issue too

Thanks in advance

Graham

Did you get to the bottom of this ?
thanks

[Imprestik]

Would also like to know if there is a resolution for this as we are in counting the same problem.

1 device is brand new out of the box and we are experiencing this.

Any help would be appreciated

[gmoore081]

This makes me feel slightly better that its not just us suffering from this

We did have someone from Sharp Technical attend a device that was regularly throwing up these error codes. They said it was probably down to a clone file (which we know it wasn't)

We just now deal with it internally. Replace the thermistor in question that the fault relates to & it settles down for a while

So, no we haven't found the fix for this, but I tried pretty much everything in the fault finding process

It is however better that it was