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hemai2005
05-01-2020, 03:45 AM
Hi guys, dose anyone solve this error before in Konica minolta 458e (C-40A1), its related to (Mechanical controller sub-CPU communication error)
action taken according to SM (2) Procedures:-1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord,
and turn ON the main power switch.
2. Rewrite the firmware.
3. machine accepted FW but stopped at 10% at printer/scanner section (NG)
4. I replaced MFPB but the same issue in the same stage.
does anyone have idea about that please.
Thanks.

Albonline
05-01-2020, 12:42 PM
Hi guys, dose anyone solve this error before in Konica minolta 458e (C-40A1), its related to (Mechanical controller sub-CPU communication error)
action taken according to SM (2) Procedures:-1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord,
and turn ON the main power switch.
2. Rewrite the firmware.
3. machine accepted FW but stopped at 10% at printer/scanner section (NG)
4. I replaced MFPB but the same issue in the same stage.
does anyone have idea about that please.
Thanks.

try the expansion control board pwb-ex

hemai2005
05-02-2020, 12:35 AM
what do you mean please ? eMMc ?

Albonline
05-03-2020, 02:17 PM
what do you mean please ? eMMc ?

look at wiring diagram its called pwbex , like a printer driver board. loads that the smaller 8 series unit dont have, are fed by it.

Guy Milner
05-14-2020, 10:34 AM
Have exactly the same on a C368. Replaced MFP PWB - same error. Original MFP PWB put back on with a new emmc PWB - same error? No answers, as yet?

tsbservice
05-14-2020, 11:05 AM
try the expansion control board pwb-ex
I think you meant EXCB.

Lone2099
09-04-2020, 03:30 PM
I think you meant EXCB.


Does anyone know if after the EXCB was changed, the problem was corrected?

hemai2005
09-04-2020, 04:22 PM
Does anyone know if after the EXCB was changed, the problem was corrected?

Sorry, I forget to submit the solution which wasn't related to any boards, we replaced MFPB, we tried and tried and we found in the end something crazy 😄 Just remove the tray 1,2 you'll find the holder with the sensor behind the tray out of the position or broken , corrected by replace it if broken or disconnect it until you replace it.. Thanks.

Zoran
06-26-2023, 11:32 PM
О n the same series of machine c308 I had an error on MFPB, ICP8E was interrupted.
588075880858809

Markks
06-27-2023, 01:46 AM
Hi guys, dose anyone solve this error before in Konica minolta 458e (C-40A1), its related to (Mechanical controller sub-CPU communication error)
action taken according to SM (2) Procedures:-1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord,
and turn ON the main power switch.
2. Rewrite the firmware.
3. machine accepted FW but stopped at 10% at printer/scanner section (NG)
4. I replaced MFPB but the same issue in the same stage.
does anyone have idea about that please.
Thanks.


C40A1
Known Error
ID: KBA00057157
Related Products:bizhub C458,bizhub 308e,bizhub 368e,bizhub 458e,bizhub 558e,bizhub 658e,bizhub C258,bizhub C308,bizhub C368,bizhub C558,bizhub C658,MFX-C2590,MFX-C3090,MFX-C3690,MFX-C4590,MFX-C5590
Related Options:


Error
C40A1 at power up Service manual describes it as a Communication Error in the CPU

Root Cause

Possible 3.3 v-dc power issue at the FD Paper Size board for tray 1 or 2 (FDPSB/1 or FDPSB/2)). The connector, holder, sensor may be damaged or shorting to frame. Damage could occur when installing/unistalling these from paper feed options. These are 3.3 VDC supplied so if there is an interruption or short this could cause the communication error

Service manual instructions include checking:
• 308e/368e/C308/C258/C368--- 3.3 VDC Circuit protection ICP 8E
• 458e/558e/658e--- 3.3 VDC Circuit protector ICP F10E

Workaround/Fix
Check condition and installation of both FDPSB 1 and 2 photointerrupters, holders, and connectors.

Replace components as necessary:
1. FDPSB/1 or FDPSB/2, p/n A161M50600
2. Holder for FDPSB/1 or FDPSB/2, p/n A5C16728000

https://cscsupport.mykonicaminolta.com/arsys/shared/image.jsp?server=ssdremprdaas&port=8000&form=RKM:KnownErrorTemplate&entryId=000000000025620&fieldId=302311216&userId=mark_singleton

Catalin
08-04-2023, 02:57 PM
Konica Minolta C258 error C-40A.
Hello, I found in tray 2, the sensor was short-circuited, which led to the interruption of the ICP8E resistor. After eliminating the short circuit, I made a bridge in place of the interrupted resistance ICP8E, the result is that now the copier works perfectly. I hope it helps.



https://www.copytechnet.com/forums/image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAQAAAA ngNWGAAAA/0lEQVR4AYXNMSiEcRyA4cfmGHQbCZIipkuxnJgMStlMNmeyD2d wmc8 sZgxYJd9ErIZFHUyYYD7fkr6l4/rnvmtl7 KitrqV/fq2Y5eLY3Z9S48eRLe7BmVZ9qhTLhQ0algzZWQOVKSsCF8OjAn wbxDTWFDUhPK/jMr1H6HE/IqRky2DyvCefuwItwZzodVoYRiLqMkVCXrwpJ9twZ sgfDYEFYl8wIWxZ9uFf7zkallxlJh4YrLGsKjZRx7VGHhLqwgF UN45DGdb8MeXGpgB4ABZdeDcpZEY51A hyLKz4S1W4MQWm3AibWtgWmk6dyISa1pSdyWTOlLXVp0 eL9D/ZPfBTNanAAAAAElFTkSuQmCC

tsbservice
08-04-2023, 04:51 PM
Konica Minolta C258 error C-40A.
Hello, I found in tray 2, the sensor was short-circuited, which led to the interruption of the ICP8E resistor. After eliminating the short circuit, I made a bridge in place of the interrupted resistance ICP8E, the result is that now the copier works perfectly. I hope it helps.



https://www.copytechnet.com/forums/image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAQAAAA ngNWGAAAA/0lEQVR4AYXNMSiEcRyA4cfmGHQbCZIipkuxnJgMStlMNmeyD2d wmc8 sZgxYJd9ErIZFHUyYYD7fkr6l4/rnvmtl7 KitrqV/fq2Y5eLY3Z9S48eRLe7BmVZ9qhTLhQ0algzZWQOVKSsCF8OjAn wbxDTWFDUhPK/jMr1H6HE/IqRky2DyvCefuwItwZzodVoYRiLqMkVCXrwpJ9twZ sgfDYEFYl8wIWxZ9uFf7zkallxlJh4YrLGsKjZRx7VGHhLqwgF UN45DGdb8MeXGpgB4ABZdeDcpZEY51A hyLKz4S1W4MQWm3AibWtgWmk6dyISa1pSdyWTOlLXVp0 eL9D/ZPfBTNanAAAAAElFTkSuQmCC





Good job and thank you for sharing :cool:

Zesti
02-13-2024, 07:06 AM
Sorry, I forget to submit the solution which wasn't related to any boards, we replaced MFPB, we tried and tried and we found in the end something crazy 😄 Just remove the tray 1,2 you'll find the holder with the sensor behind the tray out of the position or broken , corrected by replace it if broken or disconnect it until you replace it.. Thanks.
This 458e returned to customer after routine customer, at remote location. 40A1 kicked in. checked this thread, asked customer to pull oout both trays, Tray 2 was culprit... Thanks otherwise it was ahell of job as customer site is too far away.

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