Broken copier machine

M

Munken

Guest
I have a 3M Harris 6110 Copier (same as Toshiba BD2810). When I turn the
power on, it immediately shows that it needs service (a little spanner
flashing). I talked to a service guy, and he said that it was the lamp.
I opened the machine and measured the lamp, but it seemed ok (2ohm).
Then I measured the thermal fuse (Elmwood 2450 RC) and it was ok too (0
ohm). Then there was a little (1mm drop shaped) glass thing embedded in
foam rubber, also very close to the heat drum. The text on the PCB that
it is attached to is hard to read but I think it says Takara SMK 258
HW29885. That one measured 1Mohm and when I used freeze spray on it, it
rose to 3Mohm. 1-3Mohm sounds kind of high too me, but it reacts too
heat so it should be ok, or? When I measure the voltage on the power
cables to the lamp, it says 0V when the power is on. What could be
wrong? Any comments are welcome.

Best Regards,
Munken
 
You cannot test the lamp with an ohm meter. You have to try the lamp.
It can also be the lamp ballast supply as well. After the rated number
of hours on these parts, they require changing.

You can try to purchase and change the parts yourself, but it would be
recommended to have their service tech do it, so you will also have a
warranty on the parts. If you change them yourself, you will have no
warranty. The parts are expensive.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
==============================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
Instruments http://www.zoom-one.com/glgtech.htm
==============================================
"Munken" <munken@netlimit.com> wrote in message
news:3F4BC19D.4070707@netlimit.com...
I have a 3M Harris 6110 Copier (same as Toshiba BD2810). When I turn the
power on, it immediately shows that it needs service (a little spanner
flashing). I talked to a service guy, and he said that it was the lamp.
I opened the machine and measured the lamp, but it seemed ok (2ohm).
Then I measured the thermal fuse (Elmwood 2450 RC) and it was ok too (0
ohm). Then there was a little (1mm drop shaped) glass thing embedded in
foam rubber, also very close to the heat drum. The text on the PCB that
it is attached to is hard to read but I think it says Takara SMK 258
HW29885. That one measured 1Mohm and when I used freeze spray on it, it
rose to 3Mohm. 1-3Mohm sounds kind of high too me, but it reacts too
heat so it should be ok, or? When I measure the voltage on the power
cables to the lamp, it says 0V when the power is on. What could be
wrong? Any comments are welcome.

Best Regards,
Munken
 
Oh, thanks! I will check the fuses right away!

Regards,
/Munken

johnnie7 wrote:

ok
iv not worked on this model for some time ...so i could be wrong,
the wee spanner flashing sounds like the server period is due...im sure on
this model it blows a small fuse inside the key pad ...thers 2 fuses in
total 1 for fuser lamp 1 for something else...replace them both if present
ill check the manuals this week for a definative solution for you:)
k

john

"Sam Goldwasser" <sam@saul.cis.upenn.edu> wrote in message
news:6wy8xg54ay.fsf@saul.cis.upenn.edu...

"Jerry G." <jerryg@total.net> writes:


You cannot test the lamp with an ohm meter.

Well, if it's a quartz halogen lamp, this should be a reasonable test.

The temperature sensor does sound suspect but someone without the
schematic, no way to know for sure.

Takara does make thermistors but the value does seem high. These are
typically 10s of K, not M ohms.


It can also be the lamp ballast supply as well. After the rated number
of hours on these parts, they require changing.

Sorry? If it's a halogen lamp, there is no ballast.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: The email address in this message header may no longer work.

To

contact me, please use the Feedback Form at repairfaq.org. Thanks.
Click to expand...
 
ok
iv not worked on this model for some time ...so i could be wrong,
the wee spanner flashing sounds like the server period is due...im sure on
this model it blows a small fuse inside the key pad ...thers 2 fuses in
total 1 for fuser lamp 1 for something else...replace them both if present
ill check the manuals this week for a definative solution for you:)
k

john

"Sam Goldwasser" <sam@saul.cis.upenn.edu> wrote in message
news:6wy8xg54ay.fsf@saul.cis.upenn.edu...
"Jerry G." <jerryg@total.net> writes:

You cannot test the lamp with an ohm meter.

Well, if it's a quartz halogen lamp, this should be a reasonable test.

The temperature sensor does sound suspect but someone without the
schematic, no way to know for sure.

Takara does make thermistors but the value does seem high. These are
typically 10s of K, not M ohms.

It can also be the lamp ballast supply as well. After the rated number
of hours on these parts, they require changing.

Sorry? If it's a halogen lamp, there is no ballast.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: The email address in this message header may no longer work.
To
contact me, please use the Feedback Form at repairfaq.org. Thanks.
Click to expand...
 
I did not find any fuses inside the keypad, but I'm going to look for
fuses at other places. Otherwise I look forward to your "definative
solution" reply.

Regards,
Munken

johnnie7 wrote:

ok
iv not worked on this model for some time ...so i could be wrong,
the wee spanner flashing sounds like the server period is due...im sure on
this model it blows a small fuse inside the key pad ...thers 2 fuses in
total 1 for fuser lamp 1 for something else...replace them both if present
ill check the manuals this week for a definative solution for you:)
k

john

"Sam Goldwasser" <sam@saul.cis.upenn.edu> wrote in message
news:6wy8xg54ay.fsf@saul.cis.upenn.edu...

"Jerry G." <jerryg@total.net> writes:


You cannot test the lamp with an ohm meter.

Well, if it's a quartz halogen lamp, this should be a reasonable test.

The temperature sensor does sound suspect but someone without the
schematic, no way to know for sure.

Takara does make thermistors but the value does seem high. These are
typically 10s of K, not M ohms.


It can also be the lamp ballast supply as well. After the rated number
of hours on these parts, they require changing.

Sorry? If it's a halogen lamp, there is no ballast.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: The email address in this message header may no longer work.

To

contact me, please use the Feedback Form at repairfaq.org. Thanks.
Click to expand...
 
Munken <munken@netlimit.com> writes:

Sam Goldwasser wrote:

"Jerry G." <jerryg@total.net> writes:

You cannot test the lamp with an ohm meter.

Well, if it's a quartz halogen lamp, this should be a reasonable
test.


I think it is a halogen, anyway it has a thread connecting the both
poles on the tube, so the Ohm meter should be the right way of testing
it.

The temperature sensor does sound suspect but someone without the
schematic, no way to know for sure.
Takara does make thermistors but the value does seem high. These are
typically 10s of K, not M ohms.


Yes. Should have that schematic.


It can also be the lamp ballast supply as well. After the rated number
of hours on these parts, they require changing.

Sorry? If it's a halogen lamp, there is no ballast.


Don't know if it is halogen or another gas in the tube, but it is
marked 220V x00W 7A xxxxiha (x where I can't se the
letters/digits). The xxxxiha is the companys logo and I'm not even
sure of that, could be lbo too..

One note more about the lamp is that it measured 4.2 ohm not 2 as I
said before. I have a strange multimeter, but that is subject for
another thread.

I don't know how it works but if the machine uses 220V as power to the
lamp then there should be some kind of ballast in series with
it. Otherwise it would be warming up that drum with
(220*220)/4,2=11523W. Or am I completely wrong here? If there is a
ballast, what kind should it be? A resistor would be quite big..
Click to expand...
The resistance of a filament lamp increases significantly when hot, up
to 10:1, so more like 1152 W which sounds more reasonable. At 7A, it
would be 1540 W.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: The email address in this message header may no longer work. To
contact me, please use the Feedback Form at repairfaq.org. Thanks.
 
Hi,
I have had too much other work too do, but finally I have some time for
the copier machine again.
I have now looked at several places for fuses. I have found 2. Both are
located near the 220V connector and the cables that are connected to the
fuser lamp. One 250V T3.15A and the other one 250V T6.3A. I measured
them, but :( they where both fine.. So now I wonder if you have had any
time looking in the manuals yet. I would really appreciate it! There is
no rush though..

One more thing that could be important. At the same time the spanner is
flashing, a green LED is flashing too behind the LCD.

Thanks in advance!
/Munken


johnnie7 wrote:

ok
iv not worked on this model for some time ...so i could be wrong,
the wee spanner flashing sounds like the server period is due...im sure on
this model it blows a small fuse inside the key pad ...thers 2 fuses in
total 1 for fuser lamp 1 for something else...replace them both if present
ill check the manuals this week for a definative solution for you:)
k

john

"Sam Goldwasser" <sam@saul.cis.upenn.edu> wrote in message
news:6wy8xg54ay.fsf@saul.cis.upenn.edu...

"Jerry G." <jerryg@total.net> writes:


You cannot test the lamp with an ohm meter.

Well, if it's a quartz halogen lamp, this should be a reasonable test.

The temperature sensor does sound suspect but someone without the
schematic, no way to know for sure.

Takara does make thermistors but the value does seem high. These are
typically 10s of K, not M ohms.


It can also be the lamp ballast supply as well. After the rated number
of hours on these parts, they require changing.

Sorry? If it's a halogen lamp, there is no ballast.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: The email address in this message header may no longer work.

To

contact me, please use the Feedback Form at repairfaq.org. Thanks.
Click to expand...
 
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