sharp arm620 with f2 02

[Guest]

sharp arm620 with f2 02
hi i have a sharp arm 620 with f2 02 toner concentration sensor fault have changed toner units sub toner unit, different process unit ,new dev which doesnt set up correctly on crop 25 02 level ee any ideas ?

[bilyahn]

Sometimes you can blow the toner concentration sensor with your vacuum when you are changing developer. Did you try a different developer unit?

[swagreis]

Thereis a fault in toner motor which drive the cartridge with part no. RMOTD0894
this may cause this trouble due to refile toner!!

[kennyjmac]

hi i can get a reading of the id sensor and dm sensor also have tried another process unit ,i have rang crop 10 toner motors 1 and 2 and they both run thanks for the replies any other ideas,yes have tried another dev unit as well

[blackcat4866]

I had an AR-M700N that always stirred progressively higher (144-148). After the 6th PM I got 165 and an EE-EU. After a lot of messing around the thing that made the difference replace the developing fan filter, and disassemble and clean the air ducts & filters in the bottom of the developing unit. I don't know why airflow has anything to do with the stir value, but it definitely does. The resulting value dropped to 128. =^..^=

[kennyjmac]

will try that but can't see the filters making that much of a difference thanks for the response

[xmasvn]

have you check chip toner of Cartridge yet that usually toner chip die

[OMD-227]

Grounding problem with the transfer unit.
Check that the transfer ground is good. Check parts section 45, items 15, 19, and 36.
Item 15 (MSPRC3274FCZZ) = earth bearing spring
Item 19 (NBRGP0714FCZZ) = earth bearing
Item 36 (QEARP0165FCZ1) = earth connect plug.

F2-02 trouble may be experienced due to improper contact between the
transfer AC terminal at the rear of the transfer unit and the transfer electrode spring on the drum drive unit of the main machine.

To ensure proper contact between the transfer AC terminal and the transfer electrode spring, the width of the transfer electrode spring has been increased from 12.5mm to 13.5mm.
New part number is MSPRP3180FCZ1. Previous/original part number was

MSPRP3180FCZZ.

Proper contact can also be achieved between the transfer AC terminal and the transfer electrode spring by manually bending/reforming the original transfer electrode spring. Your call .