{"id":1901,"date":"2019-05-13T19:51:07","date_gmt":"2019-05-13T19:51:07","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=1901"},"modified":"2023-12-27T16:59:50","modified_gmt":"2023-12-27T16:59:50","slug":"c2551-bizhub-c368-c308-c258","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c2551-bizhub-c368-c308-c258","title":{"rendered":"C2551 (bizhub C368\/C308\/C258)"},"content":{"rendered":"\n

Contents<\/h2>\n\n\n\n
Trouble type<\/td>C2551: Abnormally low toner density detected cyan TCR sensor<\/td><\/tr>
Rank<\/td>B<\/td><\/tr>
Trouble detection condition<\/td>When sampling data is determined in TC ratio calculation control, TCR sensor output is higher than a predetermined value for a predetermined number of times in a row even though there is toner in the sub hopper.<\/td><\/tr>
Trouble isolation<\/td>–<\/td><\/tr>
Relevant electrical parts<\/td>\u2022 Developing unit\/C,M,Y
\u2022 Toner cartridge\/C,M,Y
\u2022 Toner empty sensor\/Y (PS34)
\u2022 Toner empty sensor\/M (PS33)
\u2022 Toner empty sensor\/C (PS32)
\u2022 Toner cartridge motor\/Y,M,C (M10)
\u2022 Toner supply motor\/Y (M9)
\u2022 Toner supply motor\/M (M8)
\u2022 Toner supply motor\/C (M7)
\u2022 Front side board (FRB)
\u2022 MFP board (MFPB)<\/td><\/tr><\/tbody><\/table>\n\n\n\n

 Procedure<\/h2>\n\n\n\n
  1. Perform image troubleshooting procedure if image density is low.<\/li>
  2. Reinstall developing unit.<\/li>
  3. Reinstall toner cartridge.<\/li>
  4. Check the connector between the developing unit-FRB CN14 (C2551), CN15 (C2553), CN16 (C2555) for proper connection and correct as necessary.<\/li>
  5. Check the connector between FRB CN1, CN3-MFPB CN4E, CN11E for proper connection and correct as necessary.<\/li>
  6. M10 operation check