RF640 Freezing

[BunnyOne]

Hello,

One on my Roland RF 640, is freezing. Stop printing, even in sleep mode, impossible to shutdown with power button. I had to switch off, wait 15 seconds and switch on.
It's totally random, I could print 5 minuts, 5 hours, or 10 seconds.

Any Ideas ?
Thank's !

 

[Roland Certified Tech]

What message comes on the screen if any?
Sounds like a stuck key on the panel. Wiggle all of them of remove the top piece.
Keys can be checked in Service Mode.

 

[BunnyOne]

What message comes on the screen if any?
Sounds like a stuck key on the panel. Wiggle all of them of remove the top piece.
Keys can be checked in Service Mode.

Hello,

Keys have been checked, it's OK.

There is no message, just freeze, in sleeping mode Power button stays blue, or during printing Now Processing…

 

[Roland Certified Tech]

Hello,

Keys have been checked, it's OK.

There is no message, just freeze, in sleeping mode Power button stays blue, or during printing Now Processing…

Power off printer at the Main Power switch in the rear.
Then press and hold the panel power button for 30 seconds.
Power back on at Main Switch, then panel switch.

 

[netsol]

just a blind guess.
are all the fans spinning (and clean?)
my first thought was fan failure> circuit board flexes> intermittent connection on system board
might not be a bad idea to power down. unplug. wait 1 minutes then reseat all the plugs on circuit boards carefully

 

[BunnyOne]

Power off printer at the Main Power switch in the rear.
Then press and hold the panel power button for 30 seconds.
Power back on at Main Switch, then panel switch.

I'll try this.

In Service Mode, no freeze...

 

[BunnyOne]

Power off printer at the Main Power switch in the rear.
Then press and hold the panel power button for 30 seconds.
Power back on at Main Switch, then panel switch.

Same problem.

 

[BunnyOne]

just a blind guess.
are all the fans spinning (and clean?)
my first thought was fan failure> circuit board flexes> intermittent connection on system board
might not be a bad idea to power down. unplug. wait 1 minutes then reseat all the plugs on circuit boards carefully

I'll try this tomorrow, keep in touch

 

[netsol]

my advice is general, not geared to your particular model, but, 40 years experience as a tech...

that would certainly be my guess

 

[BunnyOne]

my advice is general, not geared to your particular model, but, 40 years experience as a tech...

that would certainly be my guess

I'm sorry, but I don't understand

 

[netsol]

i am just saying i have worked on ROLAND PRINTERS for 40 years.
i am not familiar if there is a particular problem peculiar to your printer model.
others on the site will probably have your exact machine & have an additional suggestion

 

[BunnyOne]

just a blind guess.
are all the fans spinning (and clean?)
my first thought was fan failure> circuit board flexes> intermittent connection on system board
might not be a bad idea to power down. unplug. wait 1 minutes then reseat all the plugs on circuit boards carefully

Hello,

Unplug and plug all on main board, head, headcard...
Start 24h test without print to see

 

[netsol]

Hello,

Unplug and plug all on main board, head, headcard...
Start 24h test without print to see

i tcan never hurt to clean all connectors with CONTACT CLEANER (SOMETHING WITH NO LUBRICANT OR RESIDUE!)

suprisingly, wd 40 has a line of secondary products and i have had very good results with their contact cleaner (FOR GOT SAKES, NOT REGULAR WD40, regardless of what it says on the label)

Robot or human?

again, NOTHING GREASY

spray the cleaner on your finger, your finger prints should turn white, washing the oils away, no greasy residue

isopropyl 91% is good for ribbon connectors and that sort of thing

 

[BunnyOne]

Same troubles

Freeze during the night.

 

[BunnyOne]

i tcan never hurt to clean all connectors with CONTACT CLEANER (SOMETHING WITH NO LUBRICANT OR RESIDUE!)

suprisingly, wd 40 has a line of secondary products and i have had very good results with their contact cleaner (FOR GOT SAKES, NOT REGULAR WD40, regardless of what it says on the label)

Robot or human?

again, NOTHING GREASY

spray the cleaner on your finger, your finger prints should turn white, washing the oils away, no greasy residue

isopropyl 91% is good for ribbon connectors and that sort of thing

Yeah I cleaned it

 

[BunnyOne]

I just change the mainboard/network/power unit. Let you know