[Misc] AR-M257: ADF appears to be dead

[verderacer]

First of all I do not need to know where to buy or trade a manual. If I need one I will ask in the proper section.

I have a ADF that wont feed. I get it into sim mode and run the available tests but I get nothing. I noticed a small i/o board at the back of the ADF and one that the pigtail connector connects to at the back of the mfp.

Any help in further diagnosing would be appreciated.

[blackcat4866]

There are three things that you can try cheaply.

1) Reseat all connectors in the ADF and on the MCU PWB.
2) Pin out the pigtail from the ADF to the machine.
3) Check that your supply voltages are present at the ADF.

The bad news is that none of these things will probably fix your problem. I've seen many Sharps that will not recognize an accessory, and it almost always is caused by the MCU PWB.

I don't like to order boards right away, so checking these things helps me justify placing the order. =^..^=

[igi]

hi
i would start checking the 2 legged little round black fuses looks like capacitor
on the adf pwb and options connect pwb
good luck
ta

[verderacer]

blackcat, That was one of the first things I checked. And by the MCU PWB is that the board in the ADF at the back side?

igi, I will be checking the fuses this week...

[blackcat4866]

Nope. The MCU (or main controller unit) is the controller board on the copier. =^..^=

[oldrn]

I know you say that you got nothing while running available tests but just asking. Did you run load tests or the aging test or both? In the load tests, nothing responds - no motors run, no solenoids engage?

[verderacer]

If by loads tests you mean simulation mode, then that is correct. No motors, no solenoids, nothing.

[glewisme]

I saw this on a ARM277 once it was either the option interface PWB or it's harness (ribbon cable) I just don't remeber which,it had us scratching our heads for a while.

[oldrn]

Simulation 2-1 is what we old folks (and Sharp) call an aging test. Simulation 2-3 is called a load test. If switch OPCLS is incorrectly ajusted or is faulty it could allow Sim 2-1 to fail while at the same time, the load tests done in 2-3 pass.

[verderacer]

I know you say that you got nothing while running available tests but just asking. Did you run load tests or the aging test or both? In the load tests, nothing responds - no motors run, no solenoids engage?


Simulation 2-1 is what we old folks (and Sharp) call an aging test. Simulation 2-3 is called a load test. If switch OPCLS is incorrectly ajusted or is faulty it could allow Sim 2-1 to fail while at the same time, the load tests done in 2-3 pass.

I believe that is correct. I am still getting used to this sharp stuff as it was thrown at me till the cust gets the new equipment.
As of right now, I ran the aging test in 2-1. Nothing happens except it says executing SPF aging test [86407]. Running the load tests 1-6 says nothing but executing. Additionally I have checked the stiff ribbon cable at the back that runs from what I would call the connector board to MCU very carefully and there are no nics, visible damage and checks for continuity. Are we talking MCU replacement at this point?

[blackcat4866]

IMHO, yes. =^..^=