{"id":4728,"date":"2019-06-03T19:44:02","date_gmt":"2019-06-03T19:44:02","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=4728"},"modified":"2023-12-21T19:38:24","modified_gmt":"2023-12-21T19:38:24","slug":"c8402-bizhub-658e-558e-458e","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c8402-bizhub-658e-558e-458e","title":{"rendered":"C8402 (bizhub 658e\/558e\/458e)"},"content":{"rendered":"\n

Contents<\/h2>\n\n\n\n
Trouble type<\/td>C8402: Multi feed detection board failure (When UK-501 is installed)<\/td><\/tr>
Rank<\/td>C<\/td><\/tr>
Trouble detection condition<\/td>\u2022 The AD value went below the predetermined the HI side threshold for two consecutive times.
\u2022 The AD value went above the predetermined the LOW side threshold for two consecutive times.<\/td><\/tr>
Trouble isolation<\/td>DF<\/td><\/tr>
Relevant electrical parts<\/td>\u2022 Multi feed detection board\/1 (transmitter) (MFDB\/1)
\u2022 Multi feed detection board\/2 (receiver) (MFDB\/2)
\u2022 Sensor control board (SCB)
\u2022 DF control board (DFCB)<\/td><\/tr><\/tbody><\/table>\n\n\n\n

 Procedure<\/h2>\n\n\n\n
  1. Remove the film stuck on the window of the lower guide assembly.<\/li>
  2. Use the adjustment sheet for double feed detection kit (UK-501), and select [ADF] -> [Multi-Feed DetectionAdj.].<\/li>
  3. Use the misdetected paper, and select [ADF] -> [Multi-Feed DetectionAdj.].<\/li>
  4. Check the connector between MFDB\/1-SCB CN104 for proper connection and correct as necessary.<\/li>
  5. Check the connector between MFDB\/2-SCB CN103 for proper connection and correct as necessary.<\/li>
  6. Check the connector between SCB CN101-DFCB CN8 for proper connection and correct as necessary.<\/li>
  7. MFDB\/1 load check