{"id":12700,"date":"2019-07-22T12:50:58","date_gmt":"2019-07-22T12:50:58","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=12700"},"modified":"2023-12-21T14:21:31","modified_gmt":"2023-12-21T14:21:31","slug":"c2257-bizhub-754e-654e","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c2257-bizhub-754e-654e","title":{"rendered":"C2257 (bizhub 754e\/654e)"},"content":{"rendered":"\n

\n\nContents<\/p>\n\n\n\n
Trouble type<\/td>Cleaning brush motor’s failure to turn<\/td><\/tr>
Trouble code<\/td>C2257<\/td><\/tr>
Rank<\/td>B<\/td><\/tr>
Detection timing<\/td>The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.<\/td><\/tr>
Trouble isolation<\/td>–<\/td><\/tr>
Relevant electrical parts<\/td>\u2022 Transfer belt unit (cleaner unit)
\u2022 Cleaning brush motor (M38)
\u2022 Printer control board (PRCB)<\/td><\/tr><\/tbody><\/table>\n\n\n\n

 (2)Procedure<\/p>\n\n\n\n
Step<\/td>Action<\/td>Control signal<\/td>Location of electrical components<\/td><\/tr><\/thead>
1<\/td>Check the connector between M38-PRCB CN39 for proper connection and correct as necessary.<\/td>–<\/td>–<\/td><\/tr>
2<\/td>Check the M38 connector for proper drive coupling and correct as necessary.<\/td>–<\/td>–<\/td><\/tr>
3<\/td>Check the cleaner unit gear of the transfer belt unit for rotation and correct any faulty rotation.<\/td>–<\/td>–<\/td><\/tr>
4<\/td>M38 operation check<\/td>PRCB CN39-1 to 7<\/td>20-K<\/td><\/tr>
5<\/td>Replace M38<\/a> (Part# A161M10200)<\/td>–<\/td>–<\/td><\/tr>
6<\/td>Replace the transfer belt unit.<\/a> (Part# A55VR70000)<\/td>–<\/td>–<\/td><\/tr>
7<\/td>PRCB ICP8 conduction check<\/td>–<\/td>–<\/td><\/tr>
8<\/td>Replace PRCB<\/a> (Part# A55VH00105)<\/td>–<\/td>–<\/td><\/tr><\/tbody><\/table>\n\n\n\n