Brother MFC-9440CN - Brother Limited Warranty Information (Canada); Brothers Warranty Actions (Canada); Customer Responsibilities (Canada); Warranty Limitations (Canada)

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CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTING,

REQUIRED AFTER PARTS REPLACEMENT ................... 4-1

1. IF YOU REPLACE THE MAIN PCB ............................................................................4-1

2. IF YOU REPLACE THE ENGINE PCB......................................................................4-11

3. IF YOU REPLACE THE TRANSFER HVPS PCB UNIT OR REGISTRATION-

MARK SENSOR PCB ASSY 1, 2..............................................................................4-14

4. IF YOU REPLACE THE LASER UNIT.......................................................................4-15

CHAPTER 5 SERVICE FUNCTIONS ....................................................... 5-1

1. MAINTENANCE MODE............................................................................................... 5-1

1.1 How to Enter the Maintenance Mode................................................................................. 5-1

1.2 How to Enter the User-accessible Maintenance Mode...................................................... 5-1

1.3 List of Maintenance-mode Functions ................................................................................. 5-2

1.4 Detailed Description of Maintenance-mode Functions ...................................................... 5-3

1.4.1 EEPROM Parameter Initialization (Function code 01, 91) ...................................... 5-3

1.4.2 Printout of Scanning Compensation Data (Function code 05) ................................ 5-4

1.4.3 Placement of Scanner Unit Position for Transportation (Function code 06) ........... 5-7

1.4.4 ADF Performance Test (Function code 08)............................................................. 5-7

1.4.5 Test Pattern (Function code 09) .............................................................................. 5-8

1.4.6 Worker Switch (WSW) Setting and Printout ............................................................ 5-9

1.4.7 Operational Check of LCD (Function code 12)...................................................... 5-12

1.4.8 Operational Check of Control Panel PCB (Function code 13) .............................. 5-13

1.4.9 ROM Version Check (Function code 25)............................................................... 5-14

1.4.10 Drum Unit Cleaning (Function code 31) .............................................................. 5-15

1.4.11 Operational Check of Sensors (Function code 32).............................................. 5-16

1.4.12 Switching of the USB Transfer Speed in the PictBridge Mode (Function code 45) 5-20

1.4.13 EEPROM Customizing (User-accessible) (Function code 52) ............................ 5-21

1.4.14 Received Data Transfer Function (Function code 53)

(MFC-9440CN/ 9450CDN only)........................................................................... 5-22

1.4.15 Fine Adjustment of Scan Start/End Positions (Function code 54)....................... 5-24

1.4.16 Acquisition of White Level Data Setting (Function code 55)................................ 5-25

1.4.17 Adjustment of Color Registration (Function code 66).......................................... 5-26

1.4.18 Paper Feeding and Ejecting Test (Function code 67) ......................................... 5-28

1.4.19 Sensitivity Adjustment of Density Sensor (Function code 72) (Don’t use) .......... 5-28

1.4.20 EEPROM Customizing (Function code 74) ......................................................... 5-29

1.4.21 Sensitivity Adjustment of Registration-mark Sensor (Function code 75) ............ 5-31

1.4.22 Printout of Maintenance Information (Function code 77)..................................... 5-33

1.4.23 Operational Check of Fans (Function code 78)................................................... 5-34

1.4.24 Display of the Machine’s Log (Function code 80)................................................ 5-36

1.4.25 Error Code Indication (Function code 82)............................................................ 5-38

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