{"id":24832,"date":"2021-02-05T12:43:59","date_gmt":"2021-02-05T12:43:59","guid":{"rendered":"http:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=24832"},"modified":"2023-12-13T15:08:26","modified_gmt":"2023-12-13T15:08:26","slug":"c8402-bizhub-4750i-4050i","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c8402-bizhub-4750i-4050i","title":{"rendered":"C8402 (bizhub 4750i\/4050i)"},"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><\/p>\n\n\n\n

Contents<\/h2>\n\n\n\n
Trouble type<\/td>C8402: Multi feed detection board failure (When UK-P19 is installed)<\/td><\/tr>
Rank<\/td>C<\/td><\/tr>
Trouble detection condition<\/td>When the main power switch ON or when the original is being conveyed, the AD value there is no paper loaded state is out of the predetermined range.<\/td><\/tr>
Trouble isolation<\/td>DF<\/td><\/tr>
Relevant electrical parts<\/td>-Multi feed detection board\/TX (MFDB\/TX)
-Multi feed detection board\/RX (MFDB\/RX)
-DF control board (DFCB)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Procedure<\/h2>\n\n\n\n
  1. Check the connector between MFDB\/TX CN111-relay CN114-DFCB CN1 for proper connection and correct as necessary.<\/li>
  2. Check the connector between MFDB\/RX CN110-relay CN115-DFCB CN1 for proper connection and correct as necessary.<\/li>
  3. MFDB\/TX operation check