{"id":20949,"date":"2020-06-29T18:32:17","date_gmt":"2020-06-29T18:32:17","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=20949"},"modified":"2023-12-13T18:33:31","modified_gmt":"2023-12-13T18:33:31","slug":"c255c-bizhub-750i","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c255c-bizhub-750i","title":{"rendered":"C255C (bizhub 750i)"},"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>C255C: Black TCR sensor adjustment failure<\/td><\/tr>
Rank<\/td>B<\/td><\/tr>
Trouble detection condition<\/td>TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.<\/td><\/tr>
Trouble isolation<\/td>–<\/td><\/tr>
Relevant electrical parts<\/td>-Developing unit\/K
-Toner cartridge motor\/K (M25)
-Toner supply motor\/K (M6)
-Expansion control board (EXCB)
-CPU board (CPUB)
-Base board (BASEB)<\/td><\/tr><\/tbody><\/table>\n\n\n\n

Procedure<\/h2>\n\n\n\n
  1. Reinstall the developing unit\/K.<\/li>
  2. Check the connector between the developing unit\/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary.<\/li>
  3. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary.<\/li>
  4. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary.<\/li>
  5. Check CPUB for proper installation and correct as necessary.<\/li>
  6. M25 operation check