{"id":26416,"date":"2025-06-11T14:29:02","date_gmt":"2025-06-11T14:29:02","guid":{"rendered":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=26416"},"modified":"2025-06-11T14:29:07","modified_gmt":"2025-06-11T14:29:07","slug":"c9403-c9404-c4751i","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c9403-c9404-c4751i","title":{"rendered":"C9403, C9404 (C4751i)"},"content":{"rendered":"\n

Contents<\/h2>\n\n\n\n
Trouble type<\/td>C9403: CIS LED lighting failure (back side)C9404: CIS LED lighting abnormally (back side)<\/td><\/tr>
Rank<\/td>B<\/td><\/tr>
Trouble detection condition<\/td>C9403: At the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value.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>Flat cableDF CIS module (DF CIS)CPU board (CPUB)Base board (BASEB)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Procedure<\/h2>\n\n\n\n
    \n
  1. Check the connector between DF CIS-BASEB CN5 for proper connection and correct as necessary.<\/li>\n\n\n\n
  2. Check CPUB for proper installation and correct as necessary.<\/li>\n\n\n\n
  3. Replace the flat cable.<\/li>\n\n\n\n
  4. Replace the DF CIS module assy.<\/a><\/li>\n\n\n\n
  5. Replace CPUB.<\/a><\/li>\n\n\n\n
  6. Replace BASEB.<\/a><\/li>\n<\/ol>\n\n\n\n

    (Link to the Field Service Manual)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Contents Trouble type C9403: CIS LED lighting failure (back side)C9404: CIS LED lighting abnormally (back side) Rank B Trouble detection condition C9403: At the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value.C9404: After a scan job is completed, the machine detected that the average … <\/p>\n

    Continue reading “C9403, C9404 (C4751i)”<\/span><\/a><\/p>\n","protected":false},"author":227,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"epkb_post_type_1_category":[1400],"epkb_post_type_1_tag":[],"class_list":["post-26416","epkb_post_type_1","type-epkb_post_type_1","status-publish","hentry","epkb_post_type_1_category-c9-4750i-4050i-trouble"],"_links":{"self":[{"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=\/wp\/v2\/epkb_post_type_1\/26416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=\/wp\/v2\/epkb_post_type_1"}],"about":[{"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=\/wp\/v2\/types\/epkb_post_type_1"}],"author":[{"embeddable":true,"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=\/wp\/v2\/users\/227"}],"replies":[{"embeddable":true,"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26416"}],"version-history":[{"count":1,"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=\/wp\/v2\/epkb_post_type_1\/26416\/revisions"}],"predecessor-version":[{"id":26417,"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=\/wp\/v2\/epkb_post_type_1\/26416\/revisions\/26417"}],"wp:attachment":[{"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26416"}],"wp:term":[{"taxonomy":"epkb_post_type_1_category","embeddable":true,"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=%2Fwp%2Fv2%2Fepkb_post_type_1_category&post=26416"},{"taxonomy":"epkb_post_type_1_tag","embeddable":true,"href":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/index.php?rest_route=%2Fwp%2Fv2%2Fepkb_post_type_1_tag&post=26416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}