FB700 IO board problem,

[ppnai]

Hello everyone,
I'm having a big problem with my FB700 printer , after shutting down the next day didn't boot up stuck on blue HP logo without any initializing info at the bottom of the screen.
I opened the user side the fans on the ebox not working when i turn on the machine , only the CPU fan on the mother board working, after several test , no hope , so I unplugged the io board from the PCI slot on the mother board and i turn on the machine , the fans works fine but still didn't boot.
Any suggestions please I'm afraid that the io board has a problem , its very expensive

 

[netsol]

You could see if inkjetperformance.com has any experience with these
They have been my go to for a while, (we stopped repairing our own boards)

Have you had a look at a service manual?

 

[ppnai]

Thank you netsol for your reply,
There is nothing in the service manual regarding this problem , I also brows all over the internet and forums nobody had this problem before , I'm preying now not to be the IO board .

 

[netsol]

I have no experience with hp flatbeds, but, a likely guess would be that the hard drive is failed or failing

 

[ppnai]

Thanks anyway Netsol , I hope someone can help me in this

 

[netsol]

50 yrs. of experience at this.
I would suspect hard drive first, long before i blame io board

 

[ppnai]

But why the fans in the ebox didn't work if I plug the io board and work normal if I remove it,

 

[netsol]

My guess would be the command that starts the fans is not being initiated

There is probably a small program monitoring temperature, a couple thermistors that sense a heat sink temperature or simply ambient air temp to vary fan speed

Also could simply be a switched power supply voltage not turning on because of an abnormal load or just a power supply going bad

 

[Boejoe77]

I would start by cleaning your E-BOX with compress air, dust and static sometime can do funny things.

 

[ppnai]

Thank you Joe,
I clean every single connector with a special electronic cleaner still the same,
I'm trying to imaging the Hard Disk to a new one maybe there is a bad sector or something stoping the initializing as netsol said. I hope it will work
Thanks a lot for your help

 

[netsol]

But a perfect copy of a defective hard drive (IF IT IS BAD) accomplishes nothing.
You would have to image someone's good hard drive

I suspect the hard dtive, because hard drives are like light bulbs.
They ALL GO BAD eventually, most times with no warning

 

[balstestrat]

I don't know about FB but there is usually diagnostic lights that show exactly at what point the boot hangs up to. So there would be less need to guess.

 

[ppnai]

There is no diagnostic Leds on the IO board its. Not like the formatter board on latex printer ,
I was reading also that it could be a corrupted job in the queue that it should be deleted , but I can not read the hard disk.

 

[balstestrat]

I found this.

HP Scitex FB500 and HP Scitex FB700 Series - Printer Initialization Stops on HP Logo Splash Screen or 'Keyboard Error' Displays on the Control Panel | HP® Customer Support

What to do when your HP Scitex FB500 or FB700 printer initialization stops on HP logo splash screen or displays

support.hp.com