Brother MFC-J3520 Service Manual page 10

CHAPTER 5 SERVICE FUNCTIONS ................................................................................. 5-1
1 MAINTENANCE MODE ................................................................................................. 5-1
1.1 Entry to the Maintenance Mode............................................................................. 5-1
1.1.1 How to Enter the Maintenance Mode Exclusive to Service Personnel ......... 5-1
1.1.2 How to Enter the End User-accessible Maintenance Mode.......................... 5-3
1.2 List of Maintenance-mode Functions..................................................................... 5-4
1.3 Detailed Description of Maintenance-mode Functions .......................................... 5-5
1.3.1 EEPROM Parameter Initialization (Maintenance mode 01, 91) .................... 5-5
1.3.2 Creating of Head Calibration Data and Writing it into Flash ROM
(Maintenance mode 02) ................................................................................ 5-6
1.3.3 Printout of Scanning Compensation White/Black Level Data
(Maintenance mode 05) .............................................................................. 5-10
1.3.4 ADF Performance Test (Maintenance mode 08) ........................................ 5-12
1.3.5 Printout of Test Pattern (Maintenance mode 09) ........................................ 5-13
1.3.6 Worker Switch Setting and Printout (Maintenance modes 10 and 11)........ 5-14
1.3.7 Operational Check of LCD (Maintenance mode 12) ................................... 5-17
1.3.8 Operational Check of Keys on Control Panel (Maintenance mode 13)....... 5-19
1.3.9 EEPROM Dump Transfer and Log Information Saving
(Maintenance mode 17) .............................................................................. 5-20
1.3.10 Updating of Firmware Using an External Memory
(Maintenance mode 28) .............................................................................. 5-21
1.3.11 Sensor Operational Check (Maintenance mode 32) ................................... 5-22
1.3.12 Printout of Dial Log (Maintenance mode 37)............................................... 5-24
1.3.13 Backup of Machine Information (Maintenance mode 46)............................ 5-25
1.3.14 Setting of Country/Language (Maintenance mode 52) ............................... 5-27
1.3.15 Transfer of Received FAX Data and/or Equipment's Log
(Maintenance mode 53) .............................................................................. 5-28
1.3.16 Fine Adjustment of Scanning Position (Maintenance mode 54) ................. 5-30
1.3.17 Acquisition of White/Black Level Data and CIS Scanner Area Setting
(Maintenance mode 55) .............................................................................. 5-31
1.3.18 Cartridge IC Communication Check (Maintenance mode 57)..................... 5-32
1.3.19 Updating of Paper Feeding Correction Values (Maintenance mode 58)..... 5-33
1.3.20 Checking of CIS Travel and Specifying of CIS Type
(Maintenance mode 59) .............................................................................. 5-38
1.3.21 Printout of PRN/JPEG Files in Memory Card (Maintenance mode 61)....... 5-39
1.3.22 Move of the Head/Carriage Unit to the Adjustment Position
(Maintenance mode 63) .............................................................................. 5-40
1.3.23 Adjustment of Vertical Print Lines/Software Correction for Inclination/
Corrugation/Ruled Lines (Maintenance mode 65) ...................................... 5-41
1.3.24 Margin Adjustment in Borderless Printing (Maintenance mode 66) ............ 5-43
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