{"id":10928,"date":"2019-07-10T18:56:05","date_gmt":"2019-07-10T18:56:05","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=10928"},"modified":"2023-12-21T14:22:56","modified_gmt":"2023-12-21T14:22:56","slug":"c3903-bizhub-754e-654e","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c3903-bizhub-754e-654e","title":{"rendered":"C3903 (bizhub 754e\/654e)"},"content":{"rendered":"\n

Contents <\/p>\n\n\n\n
\nTrouble type<\/td>\nThermostat tripping<\/td><\/tr>
\nTrouble code<\/td>\nC3903<\/td><\/tr>
\nRank<\/td>\nA<\/td><\/tr>
\nDetection timing<\/td>\nDuring warm-up, the thermostat tripping detection \nsignal continues to be H for the set period of time.<\/td><\/tr>
\nTrouble isolation<\/td>\n–<\/td><\/tr>
\nRelevant electrical parts<\/td>\u2022 Fusing unit
\u2022 Heating roller thermostat (TS1)
\u2022 IH power supply (IHPU)
\u2022 Noise filter (NF1)
\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
Step<\/td>Action<\/td>Control signal<\/td>Location of electrical components<\/td><\/tr><\/thead>
1<\/td>Check the fusing unit for correct installation (whether it is secured in position).<\/td>–<\/td>–<\/td><\/tr>
2<\/td>Check the open\/close operation of the upper right door.<\/td>–<\/td>–<\/td><\/tr>
3<\/td>Check the fusing unit, IHPU, NF1 and PRCB for proper connection and correct or change as necessary.<\/td>–<\/td>–<\/td><\/tr>
4<\/td>Replace the fusing unit (Other area except Taiwan<\/a>\/Only for Taiwan<\/a>) (Part# A2X0R71055)<\/td>–<\/td>–<\/td><\/tr>
5<\/td>Replace IHPU<\/a> (Part# A2X0R71055)<\/td>–<\/td>–<\/td><\/tr>
6<\/td>Replace PRCB<\/a> (Part# A55VH00105)<\/td>–<\/td>–<\/td><\/tr>
7<\/td>Replace NF1<\/a> (Part# A2XKM40J00)<\/td>–<\/td>–<\/td><\/tr><\/tbody><\/table>\n\n\n\n