C9401 bizhub c224 - Konica Minolta bizhub C250 All-In-One Laser Printer

https://www.copytechnet.com/forums/konica-minolta/100443-how-reset-admin-password-bizhub-c224.html

Quoting from link:
" Re: How to reset admin password on bizhub C224

Once in service mode do a STOP, 0, C
You should then have an option to reset admin password

The manual has these steps to reset."

the file may be corrupt try different files

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

enter service mode

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

c9401 means the lamp that the scanner uses isn't turning on.

Thread Konica minolta bizhub C351 error code C9401

Problem with the scanner (Thing that move as it scans has the bright light and mirrors on it. Or the CCD that is the black device under the big glass on the right, get a tech out to clean and or replace

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

1. Turn OFF the main power switch.
2. Turn main power switch ON while pressing the Reset key.
3. Touch [Trouble Reset].
4. Check to make sure that [OK] is displayed and it has been reset.
5. After turning off the main power switch, turn it on again more than 10 seconds after and check if the machine starts correctly.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

does this machine have a finisher? exit jams where after fuser?

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

SHAKE THE BLACK IU VERY WELL Clean Imaging Unit Contacts RUN GRADATION
UPDATE FIRMWARE
REPLACE BLACK IU

Not exactly sure if the model is the same but on a C351 the C9401 & C9402 errors are as follows:

16.6.81 C9401 Exposure lamp failure to turn on
16.6.82 C9402 Exposure lamp turning on at abnormal timing

Parts to check:
Scanner Assembly
Flat Cable
Image Processing Board (PWB-C)
Step Action

Corrective steps in order of suggestion:
Check flat cable for proper connection and correct or change as necessary.

Change Scanner Assembly if necessary

Change PWB

The output from the CCD Sensor is a predetermined
value or less during CCD Sensor gain
adjustment.

1
Check the flat cable for proper connection and
correct or change as necessary.

2
Change PWB-C.