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I¡¯m encountering a strange issue and could use some advice.
I have two C558 units, both originally designed for 110V. They work perfectly, but here in the EU (220V) I¡¯ve been running them through a voltage converter. The converter works, but it¡¯s expensive, constantly draws power, generates heat, and isn¡¯t ideal for long-term use.
To avoid the converter, I sourced all the components needed for a 230V conversion:
A795M40B00 ¨C Power source (230V)
A79JM40H00 ¨C Noise filter (230V)
A79KM40D00 ¨C Fixing coil (230V)
As far as I can tell, these are the only components directly connected to live mains voltage.
However, after installing them, the printer powers on but immediately shows the error: C-3B09 ¨C IH Communication Error.
The only ¡°signal¡± connection in this chain comes from the noise filter, which has a small three-pin data connector. I followed the full troubleshooting steps from the service guide:
Checked all connections and fuses
Replaced all of the above components (I have spares for each)
Verified that all parts seem to work properly
Despite this, the printer seems to expect some different signal¡ªpossibly from the noise filter¡ªthan what it¡¯s receiving. I can¡¯t find any other relevant components in the mains path.
I even wiped the storage partitions and reinstalled the firmware, but the problem persists. This leads me to think it could be either:
A service mode setting telling the printer to expect a different value from the noise filter, or
Something entirely unrelated that I¡¯m overlooking
Does anyone have ideas on what I should check next?
my bad, the diagram was a 4 series, i thought i clicked on the 8 series parts book however...
in the parts manual any electric component with a different market ie: usa is a B and europe is a C so when you see the same part with 2 different #s and its offered for B and C then it makes sense that different boards/sensors from a different market and twice the voltage may cause a hiccup somewhere in the soup.
you may have to page through and see what other board may be different. if it was a USA machine before then the paper size sensors under the glass are for US sizes. there are metric sensors to be added for metric area i believe, at least they used to.
could be bit switches not for europe enabled.
sounds like a huge undertaking, im curious if you get this to work!
We know a thing or two because we've seen a thing or two.
The medication helps though...
timemaster
Great post I tip my hat to you.
I would like to help but seems you did your homework well and I need some time to investigate manuals.
Stay tuned and drink awesome Chech beer ?
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
I¡¯ll try replacing the fuser unit again. While it doesn¡¯t connect directly to the mains voltage, it does come in separate 110V and 220V variants, so it¡¯s possible it¡¯s sensing something from the fixing coil, which is connected directly to the mains.
Check the fusing unit for correct installation (whether it is secured in position).
Check the open/close operation of the right door.
Check the fusing unit-MFPB CN22E for proper connection and correct or change as necessary.
Check the connector between MFPB CN13E-NFB CN3 for proper connection and correct as necessary.
Check the connector between NFB CN2-IHPU CN1 for proper connection and correct as necessary.
Check the connector between IHPU-IHC for proper connection and correct as necessary.
Check the connector between IHC-IHMEB for proper connection and correct as necessary.
Replace the fusing unit. ((bizhub C658/C558) Part# A79JR71066 (bizhub C458) Part# A79MR70222)
Replace IHC. (Part# A79JM40C00)
Replace IHPU. (Part# A8KNM40A02)
Replace IHMEB. (Part# A796H00W00)
Replace MFPB. (C458 Part# A79MH02102 / C558 or C658 Part # A79JH02102)
Replace NFB. (Part# A795M40J00)
Connections are fine. The fusing unit, IHC, NFB, and IHPU have been replaced, so only two boards could cause the issue.
The MFPB is the computer mainboard, which I didn¡¯t want to replace because I don¡¯t believe it¡¯s necessary. If it¡¯s a mainboard failure, there must be a firmware difference, which should be possible to flash instead of replacing.
There¡¯s one board I don¡¯t know what it is: IHMEB, as shown in the attached picture.
IHMEB(IH magnetic erasing board) may be the culprit try to replace it.
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
It¡¯s going to be that mainboard. I¡¯ve been searching for the exact part because I didn¡¯t understand the purpose of this board.
I found this: IHMEB (IH magnetic erasing board) mentioned in the procedure matches with a part number with the description of PWB Assembly (PWB-CR ASSY), which is completely different description in my head
When I finally found what it is, it¡¯s a relay board with absolutely nothing on it. There¡¯s a relay and two wires to close it. This works for sure because I can easily test it, and it also works fine with the 110V parts. The control voltage to the relay is something small DC, not live.
I admire your desire to convert 110V printers to 220V.
I honestly consider it a big problem, and adding a transformer without the proper certifications exposes you to risks in case of fire. The insurance won't cover the damages, as there has been tampering.
I personally know a dealer who has found himself in very unpleasant and complicated situations to manage with machines converted from 110V to 220V, sourced from Chinese suppliers.
I remember some small first time configuration wizard when I deleted all the printer firmware and installed a new one from sctratch. I couldn't access this wizard again alter on. Maybe all of its settings are availble through service menu. Even though I haven;'t seen it for the first site I might want to delete it all again and do some documentation to see whether there is something regarding power supply/region. I my best guess now is there is an eeprom on the main board with some of these data I have in conflict when installing a 220V components.
I¡¯ve been searching for the exact part because I didn¡¯t understand the purpose of this board.
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