{"id":16632,"date":"2019-10-17T16:35:47","date_gmt":"2019-10-17T16:35:47","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=16632"},"modified":"2023-12-18T15:04:03","modified_gmt":"2023-12-18T15:04:03","slug":"c2555-bizhub-c364-c284-c224","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c2555-bizhub-c364-c284-c224","title":{"rendered":"C2555 (bizhub C364\/C284\/C224)"},"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<\/p>\n\n\n\n
Trouble type<\/td>Abnormally low toner density detected yellow TCR sensor<\/td><\/tr>
Trouble code<\/td>C2555: Abnormally low toner density detected yellow TCR sensor<\/td><\/tr>
Rank<\/td>B<\/td><\/tr>
Detection timing<\/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>\u2013<\/td><\/tr>
Relevant electrical parts<\/td>-Developing unit\/C,M,Y,K
-Toner cartridge\/ C,M,Y,K
-Toner empty switch\/Y (PS34)
-Toner empty switch\/M (PS33)
-Toner empty switch\/C (PS32)
-Toner empty switch\/K (PS31)
-Toner bottle motor (M10)
-Toner supply motor\/Y (M9)
-Toner supply motor\/M (M8)
-Toner supply motor\/C (M7)
-Toner supply motor\/K (M6)
-Front side board (FRB)
-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>Perform image troubleshooting procedure if image density is low.<\/td>\u2013<\/td>\u2013<\/td><\/tr>
2<\/td>Reinstall developing unit<\/td>\u2013<\/td>\u2013<\/td><\/tr>
3<\/td>Reinstall toner cartridge<\/td>\u2013<\/td>\u2013<\/td><\/tr>
4<\/td>Check the connector between developing unit-FRB CN13, CN14, CN15, CN16 for proper connection and correct as necessary.<\/td>\u2013<\/td>\u2013<\/td><\/tr>
5<\/td>Check the connector between FRB CN1, CN3-PRCB CN7, CN9 for proper connection and correct as necessary.<\/td>\u2013<\/td>\u2013<\/td><\/tr>
6<\/td>M10 operation check<\/td>M10 PRCB CN14-13 to 16<\/td>20-C<\/td><\/tr>
7<\/td>M6, M7. M8, M9 operation check<\/td>PRCB CN14-13 to 16 (M6)PRCB CN14-9 to 12 (M7)PRCB CN14-5 to 8 (M8)PRCB CN14-1 to 4 (M9)<\/td>19 to 20-C<\/td><\/tr>
8<\/td>If the toner empty sensor and its surroundings inside the sub hopper are dirtied with toner, clean them.<\/td>\u2013<\/td>\u2013<\/td><\/tr>
9<\/td>Replace the developing unit<\/a>\u00a0(Part# A2XN08D)<\/td>\u2013<\/td>\u2013<\/td><\/tr>
10<\/td>Replace FRB<\/a> (Part# A161H00501)<\/td>\u2013<\/td>\u2013<\/td><\/tr>
11<\/td>PRCB ICP21, ICP40, ICP41, ICP44, ICP46 conduction check<\/td>\u2013<\/td>\u2013<\/td><\/tr>
12<\/td>Replace PRCB<\/a> (Part# A161H00108)<\/td>\u2013<\/td>\u2013<\/td><\/tr><\/tbody><\/table>\n\n\n\n