Brother DCP-7090, Service Manual

Page: 5 / 119

4.2.2 4.2.2 No pa No paper f per feedin eeding from g from MP tra MP tray y ....... ............. ............. ............. ............. .............. ............. ............. .............. ............. ............. .......... ... 2-74 2-74
4.2.3 4.2.3 No pa No paper f per feeding eeding from from manual manual feed feed slot slot ....... .............. ............. ............. .............. ............. ............. ............. ............. ......... .. 2-75 2-75
4.2.4 4.2.4 Multi Multiple sh ple sheets o eets of pape f paper are r are fed fed ....... .............. ............. .............. .............. ............. .............. ............. ............. .............. ............. ....... . 2-75 2-75
4.2.5 4.2.5 Paper Paper become becomes wri s wrinkled ............. nkled ................... ............. .............. ............. ............. ............. ............. .............. ............. ............. .............. 2-76 ....... 2-76
4.2.6 4.2.6 Paper Paper is fe is fed at d at an an an angle gle ...... ............. ............. ............. .............. .............. ............. ............. ............. ............. .............. ............. ............. ........ . 2-76 2-76
4.2.7 4.2.7 Paper c Paper curls urls ...... ............. .............. ............. ............. ............. ............. ............. ............. ............. ............. .............. ............. ............. .............. ............. ........ .. 2-77 2-77
4.2.8 4.2.8 Unabl Unable to p e to perform erform 2-side 2-sided prin d printing ting ....... .............. ............. ............. .............. ............. ............. .............. ............. ............. ........... .... 2-77 2-77
4.2.9 4.2.9 Paper jam Paper jam ....... ............. ............. ............. ............. .............. ............. ............. ............. ............. ............. ............. ............. ............. .............. .............. .......... ... 2-78 2-78
4.3 4.3 Troubl Troubleshooti eshooting for Image De ng for Image Defects .... fects .......... ............. .............. .............. ............. ............. .............. ............. .............. .............. ............. ............ ..... 2-83 2-83
4.3.1 4.3.1 Image Image defec defect exam t examples ples ...... ............. ............. ............. .............. ............. ............. ............. ............. ............. ............. .............. .............. ......... .. 2-83 2-83
4.3.2 4.3.2 Troubl Troubleshooti eshooting i ng image mage defect ............ defect .................. ............. .............. ............. ............. .............. ............. ............. .............. ............. 2-84 ...... 2-84
4.4 4.4 Troubl Troubleshooti eshooting fo ng for Soft r Software ware Problem Problems s ....... ............. ............. .............. ............. .............. .............. ............. .............. ............. ............. ........ . 2-98 2-98
4.4.1 4.4.1 Unabl Unable to e to receiv receive dat e data a ...... ............. .............. ............. ............. ............. ............. .............. ............. ............. ............. ............. .............. .......... ... 2-98 2-98
4.5 4.5 Troubl Troubleshooti eshooting fo ng for Net r Network work Proble Problems ms ...... ............. ............. ............. ............. ............. .............. ............. ............. ............. ............. ........... .... 2-99 2-99
4.5.1 4.5.1 Canno Cannot make t make a pri a print th nt through rough networ network con k connectio nection ............ n ................... .............. .............. ............. ............. ......... .. 2-99 2-99
4.5.2 4.5.2 Canno Cannot con t connect nect to ac to access cess point point ...... ............. .............. ............. ............. .............. .............. ............. ............. ............. ............. ......... .. 2-99 2-99
4.6 4.6 Troubl Troubleshooti eshooting for C ng for Control ontrol Panel Pr Panel Problems ...... oblems ............ ............. .............. .............. .............. .............. .............. .............. ............ ..... 2-100 2-100
4.6.1 4.6.1 Nothin Nothing is d g is displa isplayed on yed on the LC the LCD D ....... .............. .............. ............. ............. .............. .............. ............. ............. .............. ........... .... 2-100 2-100
4.6.2 4.6.2 Nothin Nothing is g is displ displayed ayed on th on the LED e LED ....... .............. .............. ............. ............. .............. .............. ............. ............. .............. ........... .... 2-100 2-100
4.6.3 4.6.3 Unabl Unable to p e to perform erform panel panel operat operation ........... ion .................. .............. ............. ............. .............. .............. ............. ............. ........... .... 2-100 2-100
4.7 4.7 Troubl Troubleshooti eshooting fo ng for Ton r Toner Ca er Cartridge rtridge and D and Drum U rum Unit P nit Problem roblems s ....... .............. .............. .............. .............. .......... ... 2-101 2-101
4.7.1 4.7.1 New New toner toner not d not detecte etected d ....... .............. ............. ............. .............. .............. ............. ............. ............. ............. .............. ............. ............ 2-101 ...... 2-101
4.7.2 4.7.2 Toner Toner cartri cartridge n dge not d ot detected etected ....... ............. ............. .............. ............. ............. .............. ............. ............. .............. .............. ........... .... 2-101 2-101
4.7.3 4.7.3 Toner Toner replace replacement ment messag message di e displaye splayed on d on LCD LCD is n is not c ot cleared ...... leared ............. .............. ............. 2-102 ...... 2-102
4.7.4 4.7.4 Drum er Drum error ror ....... ............. ............. ............. ............. .............. ............. ............. ............. ............. .............. ............. ............. .............. ............. ............. ....... 2-102 2-102
4.7.5 4.7.5 Drum Drum replac replacement ement messag message d e displa isplayed yed on on LCD LCD is is not not cleare cleared d ....... .............. .............. ............ 2-102 ..... 2-102
4.8 4.8 Troubl Troubleshooti eshooting for F ng for Fuser Un user Unit Prob it Problems ............ lems ................... .............. .............. ............. ............. .............. .............. .............. ........... .... 2-103 2-103
4.8.1 4.8.1 Fuser uni Fuser unit failure ........ t failure ............... ............. ............. ............. ............. .............. .............. ............. ............. ............. ............. ............. ............. .......... ... 2-103 2-103
4.9 4.9 Troubl Troubleshooti eshooting for ng for Laser Laser Unit Unit Problem Problems s ...... ............. .............. .............. .............. ............. ............. .............. .............. .............. .......... ... 2-103 2-103
4.9.1 4.9.1 Laser un Laser unit failu it failure re ....... ............. ............. .............. ............. ............. ............. ............. .............. ............. ............. .............. ............. ............. ........... .... 2-103 2-103
4.10 4.10 Troubl Troubleshooti eshooting ng for for PCB Problems PCB Problems ...... ............. .............. .............. ............. ............. .............. .............. .............. .............. ............. ............ ...... 2-104 2-104
4.10.1 4.10.1 Main PCB Main PCB failur failure e ...... ............. .............. ............... ............... .............. ............. ............. .............. ............. ............. ............. ............. .............. ........ . 2-104 2-104
4.10.2 4.10.2 Full Full memory memory ....... .............. ............. ............. .............. ............. ............. ............. ............. .............. ............. ............. .............. ............. ............. ........... .... 2-10 2-104 4
4.11 4.11 Trouble Troubleshootin shooting for g for Docum Document Feeding Problem ent Feeding Problems s ....... ............. ............. .............. ............. .............. .............. ............. .......... ... 2-105 2-105
4.11.1 4.11.1 No document is No document is fed fed ....... ............. ............. .............. .............. ............. ............. ............. ............. .............. ............. ............. ............. ............ ...... 2-105 2-105
4.11.2 4.11.2 Multi Multiple documents are fed ple documents are fed ....... .............. .............. ............. ............. ............. ............. .............. ............. ............. ............. ............. ....... 2-105 2-105
4.11.3 4.11.3 Docume Document nt jam jam ...... ............. ............. ............. .............. ............. ............. ............. ............. .............. ............. ............. ............. ............. ............. ........ .. 2-106 2-106
4.11.4 4.11.4 Docum Document becomes wrinkled ent becomes wrinkled ...... ............. .............. ............. ............. ............. ............. .............. .............. .............. .............. .......... ... 2-107 2-107
4.11.5 4.11.5 Docume Document size nt size is not is not detec detected correctly ........... ted correctly .................. ............. .............. .............. ............. .............. ............. ......... ... 2-107 2-107
4.12 4.12 Trouble Troubleshootin shooting for g for Scannin Scanning Image Defect g Image Defect ....... ............. ............. ............. ............. .............. .............. .............. .............. ............ ..... 2-108 2-108
4.12.1 4.12.1 Defect Defect examp examples les ....... .............. ............. ............. ............. ............. .............. .............. .............. .............. ............. ............. ............. ............. .......... ... 2-108 2-108
4.12.2 4.12.2 Troubl Troubleshooti eshooting accordi ng according to image defect ng to image defect ....... .............. ............. ............. .............. ............. ............. .............. ........ . 2-108 2-108
4.13 4.13 Trouble Troubleshootin shooting for g for FAX/Phon FAX/Phone Problems e Problems ....... .............. ............. ............. .............. ............. ............. ............. ............. ............. ......... ... 2-113 2-113
4.13.1 4.13.1 Fax Fax canno cannot t be be sent sent ...... ............. .............. .............. .............. ............. ............. ............. ............. .............. .............. .............. .............. ............ ..... 2-113 2-113