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44158801TH Rev.2
7 /
Oki Data CONFIDENTIAL
7.6.3
Cleaning a Paper Jam ........................................................................................204
7.6.4
Replacing the ADF pad ........................................................................................205
8. tRoUBLesHootInG PRoceDURes ............................................................206
8.1
Precautions prior to repair .................................................................................................206
8.2
Items to be checked prior to taking action on abnormal images .......................................206
8.3
Precautions when taking action on abnormal images ......................................................206
8.4
Preparations for troubleshooting .......................................................................................206
8.5
Troubleshooting method ....................................................................................................206
8.5.1
LCD Message List ...............................................................................................207
8.5.2
Preparing for troubleshooting ..............................................................................223
8.5.3
Image Problem Troubleshooting ..........................................................................261
8.5.4
Actions after forced initialization of HDD/Flash ...................................................268
8.5.5
Network Troubleshooting .....................................................................................269
8.6
Check of fuses ..................................................................................................................270
8.7
Troubleshooting .................................................................................................................271
8.7.1
Troubleshooting flowchart ....................................................................................271
8.7.1.1 Power ON to the MFP ready ....................................................................271
8.7.1.2
Copy operation ....................................................................................272
8.7.1.3
Email operation .....................................................................................273
8.7.1.4
Control panel operation ........................................................................ 274
8.7.2
Tables ..................................................................................................................275
8.7.2.1
LCD does not display ...........................................................................276
8.7.2.2
Printer does not react ...........................................................................276
8.7.2.3
Scanning is not performed ...................................................................276
8.7.2.4
Printer does not print ............................................................................277
8.7.2.5
Image unclear .......................................................................................277
8.7.2.6
Noise generated ...................................................................................277
8.7.2.7
LCD does not show message after command .....................................277
8.7.2.8
C5550MFP is not connected to the network ........................................278
8.7.2.9
C5550MFP cannot send email .............................................................278
8.7.2.10 Error message ......................................................................................279
8.7.2.10.1
Error message during initializing .......................................279
8.7.2.10.2 Error message during printing and copying ......................280
8.7.2.10.3 Information codes during networking ...............................285
8.7.2.10.4 Error message during E-mailing........................................286
8.7.2.10.5 Error message during filing ...............................................288
8.7.2.10.6 Error message on fax ........................................................290
8.8
Scanner Shipment Setting List ..........................................................................................291
8.8.1
The outline of Menu structure ..............................................................................291
8.8.2
Scanner operation panel .....................................................................................291
8.8.3
Menu Settings ......................................................................................................295
8.8.4
Additional Settings ...............................................................................................298
8.8.5
Fax Service Mode ................................................................................................299
9. connectIon DIaGRaMs ..............................................................................300
9.1
Check of resistance values ...............................................................................................300
9.2 Component layout .............................................................................................................304