{"id":25961,"date":"2023-10-11T12:50:32","date_gmt":"2023-10-11T12:50:32","guid":{"rendered":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=25961"},"modified":"2023-12-13T14:08:19","modified_gmt":"2023-12-13T14:08:19","slug":"c9403-c9404-bizhub-950i-850i","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c9403-c9404-bizhub-950i-850i","title":{"rendered":"C9403, C9404 (bizhub 950i\/850i)"},"content":{"rendered":"\n

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.<\/strong><\/strong><\/p>\n\n\n\n

Contents<\/strong><\/h2>\n\n\n\n
Trouble type<\/td>– C9403: CIS LED lighting failure

– C9404: CIS LED lighting abnormally<\/td><\/tr>
Rank<\/td>B<\/td><\/tr>
Trouble detection condition<\/td>– C9403: The output from the CIS LED is a predetermined value or less during CIS sensor gain adjustment.

– C9404: After a scan job is completed, the machine detected that the average output of the CIS LED is greater than the specified value.<\/td><\/tr>
Trouble isolation<\/td>Scanner<\/td><\/tr>
Relevant electrical parts<\/td>– CIS cable
– CIS module (CIS)
– CIS power supply (CISPU)
– CPU board (CPUB)
– Base board (BASEB)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Procedure<\/strong><\/h2>\n\n\n\n
    \n
  1. Check the back side scanning shading shaft for any stain, and clean up it as necessary.<\/li>\n\n\n\n
  2. Check that the bushing of the back side glass cleaning roller unit is on the standby position.<\/li>\n\n\n\n
  3. Correct the harness connection between CIS CN2-BASEB CN5 if faulty.<\/li>\n\n\n\n
  4. Correct the harness connection between CIS CN1-CISPU CN2 if faulty.<\/li>\n\n\n\n
  5. Check CPUB for proper installation and correct as necessary.<\/li>\n\n\n\n
  6. Measure the voltage of CISPU CN1-2.\n