[Misc] "Please wait" message

[fanasa]

We have an MX6200 that has a "Please wait" message on the screen and it doesn't let you do anything.
We have tried updating the firmware, replaced MFP, PCU PWb and mother board. Checked all the fuses, removed options, removed security kit. But still no luck.
Has anyone seen this before?

[OMD-227]

You have done quite alot of diagnostics already. Well done.

If this is happening straight away on bootup, and the message stays there, it very well could be looking for the HDD to finish bootup.

[fanasa]

The HDD was replaced as well.
it boots up and it has that message right away and stays there.

You have done quite alot of diagnostics already. Well done.

If this is happening straight away on bootup, and the message stays there, it very well could be looking for the HDD to finish bootup.

[bilyahn]

Do you have a punch unit installed? Only 2 things show up on this from Sharp. One is the punch unit dip switches are wrong and the other involves a ROM update done in the wrong order if you have an LCT installed. Only information I could find. Hope this is helpful.

Bil

[OMD-227]

Good call Bil.

Also check all fuser thermistats. It should come up with a H3 or H4 code if there was a fuser problem, but I've seen similar issues before now I think about it. Take the fuser unit out and confirm all thermistats haven't tripped out.

[fanasa]

The hole fuser got taken out to see if it would go away. Also, all the options got removed including the finisher and it still did the same.
Also they tried aging without warming up and no luck. We are out of ideas. do you have any more ideas.

By the way, thanks guys for all your input.

[blackcat4866]

Yeah, you've done the obvious, and some, not-so-obvious.

Does the fuser heat up at all? Regardless, I'd take a close look at the doorswitches and heater driver circuit. On many copiers the fuser AC current is cut by a doorswitch.

Can you access service mode? Does the machine properly display the actual fuser temperature?

[OMD-227]

Does the machine make the usual warmup/calibration noises during startup, or does it just sit there once at the copy screen?

Are there any trouble codes recorded, such as F2-02, F2-40 or F2-64?

Perform a clone of the machine, then give it an NVRAM clear. Reapply the clone afterwards.

Reseat/check the MFP memory modules.

Start the machine with the ADF open, and have the DSPF scan cover open so the invertor board in the ADF doesnt startup.

In 22-05 are there any firmware versions missing that should be listed?

[fanasa]

No codes appear. The fuser temps are up to what it's supossed to be up to.
I have to check if the guys checked the switches, but all other boards and fuses were checked or replaced.
I will tell them to do some of the steps you mentioned.
Thanks

[mojorolla]

Silly, but I have not seen it mentioned. Is it on a 20 amp breaker? It is a 16 amp machine. We had one do something very similar with a 15 amp breaker.

[bilyahn]

Silly, but I have not seen it mentioned. Is it on a 20 amp breaker? It is a 16 amp machine. We had one do something very similar with a 15 amp breaker.

I will have to remember this as we sometimes put a cheater connection so that we can test the units on our 15 amp circuits!!

[OMD-227]

Please re-check all DC board fuses.

Also, reseat all harnesses on the SCU board. I've previously had weird symptoms like this caused by a faulty SCU board (which the op panel is connected to).

I also think this could be system memory. Replace the 1Gb module if you have one around. MX machines need a good system memory to fully bootup.

If you had ALL options removed, then its engine based. Disconnect the ADF & test. The engine is waiting for something to finish initialising during startup.

[fanasa]

The ADF was also removed. I will have the tech check the rest.
Thanks

[OMD-227]

I just keep thinking that this is a fuser problem.

I know you have tested without the fuser unit installed and with warmup heat off, but there have been cases where the contact thermistors on the fuser rollers were not quite touching the rollers, causing a very long warmup time, with please wait displayed.

Please recheck the fuser, the thermistors are touching the rollers and the thermistats have not popped. Try another fuser unit if possible too.

[Dave]

I would definitely change out the system memory like wazza said.