How to fix

Exposure Lamp failure.
check if coming to home position to read white reference plate.
check the lamp/Tube for proper connection.

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

Thread Konica minolta bizhub C351 error code C9401

Exposure lamp fault Replace lamp or board.

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

Scanner lamp assembly, that is the bright light that come on the document feeder, there is a problem with it. Need to be replaced. or the control board needs to be replaced. No reset

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

bright light under the big glass is out or bad

konica minolta bizhub c654e in display error c9401
no Utility/Counter key. howcreset I resolve lamp already change

my machine konica minolta C252 is giving the code 9401 how should I resolve and what is

Hello,

Try this steps

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.

Please let me know if you have any further questions or concerns.

Thanks.

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.