I am relaxed. But I am also trying to help you resolve a problem and prevent you from creating more problems for you and your customer. Also, since they cannot print to it, what difference does that make?
And according to this TSB, what I have described to you is the corrective action....
Solution ID TAUS0702439EN* Solution Usage 7
CAUSE: MFPB failed.
SOLUTION:Perform a Data Clear. Reseat all the connections on PWB-MFPB. Replace MFPB if necessary and flash MFP with most current firmware. If the problem persists, swap NVRAM.
IMPORTANT: All requests for NVRAMs must be approved by the SSD Hotline and a problem ticket generated. If a request is received without an established problem ticket number the request will be denied.
bizhub C550 - PWB-MFPB (p/n A00J H020 07)
bizhub C451 - PWB-MFPB (p/n A00J H020 07)
bizhub C650 - PWB-MFPB (p/n A00J H021 00)
bizhub C203/C253 - PWB-MFPB (p/n A02E H342 05)
bizhub C353 - PWB-MFPB (p/n A02E H341 05)
Solution IDTAUS0702927EN* Solution Usage 28
DescriptionNetwork menu button is missing from Admin Mode.SolutionCAUSE: Corrupt NVRAM and/or failed PWB-MFP.
SOLUTION: Perform the NVRAM Recovery Procedure (see attachment for instructions).bizhub C650 (p/n A00J H021 00)
If NVRAM Recovery Procedure is unsuccessful, replace the PWB-MFP and NVRAM. To receive a replacement NVRAM, please utilize the Online Technical Special Program order form located within MyKonicaMinolta.com:
1. Login to MyKonicaMinolta.com.
2. Select the Service tab.
3. Select Warranty, Repair, Special Programs (menu at left side of screen).
4. Click on Warranty Services Technical/FOC Programs (in center of screen).
5. Select NVRAM/BRU Replacement Program.
IMPORTANT : All requests for NVRAMs must be approved by the SSD Hotline and a problem ticket generated. If a request is received without an established problem ticket number the request will be denied.
PART NUMBERS (PWB-MFP)
bizhub C250/C250P/C252/C252P (p/n 4038 0121 06)
bizhub C203/C253 (p/n A02E H342 05)
bizhub C300 (p/n 9J06-H003-01)
bizhub C352/C352P (p/n 9J06-0101-02)
bizhub C353/C353P (p/n A02E H341 05)
bizhub C351/C450/C450P (p/n 4037013104)
bizhub C451/C550 (p/n A00J H020 07)
Though the above describes to clear NVRAM, this method clears the machine's main counts. You cannot recover that information.
Other TSBs also describes problems that can arise with Licensing depending on any options (like i-Options) installed in the machine, or conflicts that can happen. By a downed machine, I am referring only to the time it takes to get a replacement NVRAM from KM Japan or to deal with red tape regarding certain options in the machine that require a code to reset them. Not to mention the hassle that includes for you and the customer. The following TSBs describe this.
Firmware flashing takes 10 minutes at the most. Replacing the MFP board perhaps 30 minutes and another 10 to flash the machine. Do this during their lunch hour if it is such a concern.