The machine displays the code: C-d203. Any ideas?
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Re: Bizhub 421
Communication abnormality
between the main body control
board and the printer control -
Re: Bizhub 421
what is the solution for this problem?Comment
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Re: Bizhub 421
this is an internal communication problem on the system board, you could try reseating the ram.unless you know exactly what you are doing on this old thing swapping out boards can be a nightmare. this problem can be from ram, nvram, or the control board. very slim chance its the cf card.
this is an obsolete box though, i wouldn't put too much into it.Comment
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Re: Bizhub 421
I tried with another ram and it din't work. i have another functional 421 and i'll try to swap the boards and see what's what. thank you for your help, much apreciated!Comment
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Re: Bizhub 421
Description
C-D203 at power ON and the code may not reset.
Solution
PROBABLE CAUSES:
1. The OACB (Overall Control Board) has failed.
Before replacing the OACB, reseat the NVRAM and Memory on board connections. If the issue is still unresolved, replace the OACB (p/n A0R5 H010 06).
2. A poor connection between the scanner drive motor and PWB-SDB.
Reseat CN62 on PWB-SDB. If the problem persists, replace PWB-SDB (p/n 50GA -905 0).Comment
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