Hi all, 1st post and it's a doozie! Sorry in advance for the L-O-N-G post!
I have a Sharp AR-M355N that has been giving me problems for over a month now. It has random reboots, lockups and blue screens!
Here's the scenario:
Got a call it was giving random lockups and blue screens.... upon arrival, it had a blue screen so I shut it down and fired it back up, ran for aprox 10 min and boom, blue screen and locked up tighter than a drum. (when it locked up, there was a fax coming in and the client started a print job from their PC)
SO... I disconnect the network and phone line and rebooted it, everything was fine, scan fine, self prints fine.... plugged in the network and boom, locked up!
Next, I hooked my laptop up to it (thinking it might be the NIC) with a crossover cable and all went well, no issues printing or copying.
Next, hooked their fax line back up, received and sent faxes fine along with printing...
Next, hooked their network up and boom, locked up.
Next, had their IT dept clear their print Q's from their server which is running a Med-Report type program for the doctors office. (non windows, running ASA 400 I believe)
Anyway, after they cleared their print jobs in Q, everything went fine, they could print, fax, copy with no problems....
Problem solved? NOPE!
Next day another call, locked up and blue screen!
This time, my service manager went with me to help diagnose and see what it was doing first hand...
NOW, this time I did the same process as above BUT even with the network and fax line disconnected, it would lockup ONLY if I did a "print List" from the copier ... Prints and copies fine otherwise....
Called Sharp Service and they suggested MCU PWB or hard drive ... We opted to take the copier to our service center for further tests... got it in the shop, hooked up to our network and fax... ran fine for one full week on 24/7 doing random print jobs, faxes and copies.
Service manager did however replace the NIC and hard drive just in case.
Took copier back on a Monday.... Friday we get another call, Yep, locked up, and blue screen again! As before, with network connected, it would lock up so I had their IT clear the print Q again and this time everything went fine. After it was cleared, they could print, fax and copy no problems.... Now, the receptionist decided to print their appointment from her PC for the next week... BOOM, locked up!
Thinking it might be an issue with that one PC, our network specialist went and checked everything out and found a setting in the copier was off... he set it and all went well....
NOW, TODAY, (the following Friday) we get another call.. locked up!!
Got any ideas????
Details:
The job she printed from that PC is printed daily from all PCs
The MCU PWB has been replaced (from the previous tech, not me) same issues!
Has been flashed
Pretty much every PWB has been replaced. (I've kinda adopted this problem from 3 other techs that have not resolved the problem)
Their line voltage is a steady 122 volts and is on a protector
Here is my dilemma:
1. If it was their network, it wouldn't have crashed with their network disconnected.
2. same with fax line
3. If it was the NIC card, it should have crashed with my Laptop and/or OUR network connected.
4. Internal power issue, it would have crashed at our service center.
5. Their backup copier (AR-M350) runs perfect at their location, no issues at all!
6. All other copiers (about 10, mixed Ar-M350's and AR-M355's) run fine on the same network running same program. (it's a hospital)
7. Copier run perfect in OUR shop on our network.
If anyone has a clue what or where to look, PLEASE post you ideas!
BTW, it's got 486693 copy count.
Thanks
Dave
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