{"id":10496,"date":"2019-07-09T14:37:01","date_gmt":"2019-07-09T14:37:01","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=10496"},"modified":"2023-12-21T14:41:46","modified_gmt":"2023-12-21T14:41:46","slug":"c4501-bizhub-754e-654e","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c4501-bizhub-754e-654e","title":{"rendered":"C4501 (bizhub 754e\/654e)"},"content":{"rendered":"\n

Contents <\/p>\n\n\n\n
\nTrouble type<\/td>\nLaser malfunction<\/td><\/tr>
\nTrouble code<\/td>\nC4501<\/td><\/tr>
\nRank<\/td>\nB<\/td><\/tr>
\nDetection timing<\/td> \u2022 SOS signal is not detected even after the lapse of a given period of time after staring the laser output.
\u2022 SOS signal is not detected for a given period of time during printing or IDC sensor adjustment. <\/td><\/tr>
\nTrouble isolation<\/td>\n–<\/td><\/tr>
\nRelevant electrical parts<\/td> \u2022 PH unit
\u2022 PH relay board (PHRYB)
\u2022 Printer control board (PRCB) <\/td><\/tr><\/tbody><\/table>\n\n\n\n

\n \n(2)Procedure\n\n\n\n\n<\/p>\n\n\n\n
\nStep<\/td>\nAction<\/td>\nControl signal<\/td>\nLocation of electrical \ncomponents<\/td><\/tr><\/thead>
\n1<\/td>\nCheck the connector between the PH unit-PHRYB CN16 \nfor proper connection and correct as necessary.<\/td>\n–<\/td>\n–<\/td><\/tr>
\n2<\/td> Replace the PH unit<\/a>PH Unit (Part# A55VR70122)<\/td>\n–<\/td>\n–<\/td><\/tr>
\n3<\/td>\nPHRYB ICP3 conduction check<\/td>\n–<\/td>\n–<\/td><\/tr>
\n4<\/td> Replace PHRYB<\/a>PHRYB (Part# A55VH00300)<\/td>\n–<\/td>\n–<\/td><\/tr>
\n5<\/td> Replace PRCB<\/a>PRCB (Part# A55VH00105)<\/td>\n–<\/td>\n–<\/td><\/tr><\/tbody><\/table>\n\n\n\n