Chapter 4 Troubleshooting - Brother HL-5240 Service Manual

3. PERIODICAL CLEANING ..................................................................................... 3-49
3.1 Cleaning the Inside of the Printer ................................................................................... 3-49
3.2 Cleaning the Corona Wire .............................................................................................. 3-52

CHAPTER 4 TROUBLESHOOTING ....................................................... 4-1

1. INTRODUCTION .................................................................................................... 4-1
1.1 Initial Check ...................................................................................................................... 4-1
1.2 Warnings for Maintenance Work...................................................................................... 4-2
1.3 Identify the Problem.......................................................................................................... 4-3
2. ERROR MESSAGE ................................................................................................ 4-4
2.1 Operator Calls .................................................................................................................. 4-4
2.1.1 Operator calls for HL-5240/5250DN....................................................................................4-4
2.1.2 Operator calls for HL-5270DN/5280DW..............................................................................4-6
2.2 Service Calls..................................................................................................................... 4-8
2.2.1 Service calls for HL-5240/5250DN ......................................................................................4-8
2.2.2 Service calls for HL-5270DN/5280DW ..............................................................................4-10
2.3 Error Message in the Status Monitor .............................................................................. 4-12
2.4 Error Message Printouts................................................................................................. 4-14
3. PAPER PROBLEMS ............................................................................................. 4-15
3.1 Paper Loading Problems ................................................................................................ 4-15
3.2 Paper Jams .................................................................................................................... 4-16
3.2.1 Paper jams and how to clear them for HL-5240/5250DN..................................................4-16
3.2.2 Paper jams and how to clear them for HL-5270DN/5280DW ..........................................4-18
3.2.3 Causes & countermeasures..............................................................................................4-26
3.3 Paper Feeding Problems................................................................................................ 4-27
4. SOFTWARE SETTING PROBLEMS .................................................................... 4-29
5. MALFUNCTIONS.................................................................................................. 4-32
6. IMAGE DEFECTS................................................................................................. 4-38
6.1 Image Defect Examples ................................................................................................. 4-38
6.2 Diameter of Rollers......................................................................................................... 4-38
6.3 Troubleshooting Image Defect ....................................................................................... 4-39
6.4 Location of Grounding Contacts ..................................................................................... 4-57
6.4.1 Drum unit...........................................................................................................................4-57
6.4.2 Printer body & Paper tray ..................................................................................................4-57
7. INCORRECT PRINTOUT ..................................................................................... 4-58
8. NETWORK PROBLEM ......................................................................................... 4-60
8.1 Installation Problem ........................................................................................................ 4-60
8.2 Printing Problem ............................................................................................................. 4-63
8.3 Protocol-Specific Troubleshooting.................................................................................. 4-65
8.4 Wireless Network Troubleshooting ................................................................................ 4-66
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