Brother MFC-9320CW Service Manual page 440

Describes the maintenance mode which is exclusively designed for the purpose of checking the
settings and adjustments using the buttons on the control panel.
This chapter also covers not-disclosed-to-users function menus, which activate settings and functions
or reset the parts life.
1. MAINTENANCE MODE..............................................................................7-1
1.1 How to Enter the Maintenance Mode ......................................................................... 7-1
1.2 How to Enter the End User-accessible Maintenance Mode ....................................... 7-1
1.3 List of Maintenance-mode Functions.......................................................................... 7-2
1.4 Detailed Description of Maintenance-mode Functions ............................................... 7-3
1.4.1 EEPROM parameter initialization (Function code 01, 91) ................................. 7-3
1.4.2 Printout of scanning compensation data (Function code 05)............................. 7-4
1.4.3 Placement of scanner unit in position for transportation (Function code 06)..... 7-7
1.4.4 ADF Performance Test (Function code 08) ....................................................... 7-7
1.4.5 Monochrome image quality test pattern (Function code 09).............................. 7-8
1.4.6 Worker switch (WSW) setting and printout (Function code 10, 11) ................... 7-9
1.4.7 Operational check of LCD (Function code 12) ................................................ 7-13
1.4.8 Operational check of control panel button (Function code 13) ........................ 7-14
1.4.9 Software version check (Function code 25)..................................................... 7-15
1.4.10 Operational check of sensors (Function code 32) ......................................... 7-16
1.4.11 PC print function (Function code 43) ............................................................. 7-20
1.4.12 Not-disclosed-to-users functions (Function code 45) .................................... 7-23
1.4.13 EEPROM customizing (User-accessible) (Function code 52) ....................... 7-26
1.4.14 Received data transfer function (Function code 53) (FAX model only) ......... 7-27
1.4.15 Fine adjustment of scan start/end positions (Function code 54) ................... 7-29
1.4.16 Acquisition of white level data (Function code 55)......................................... 7-30
1.4.17 Adjustment of color registration (Function code 66) ...................................... 7-31
1.4.18 Continuous print test (Function code 67)....................................................... 7-34
1.4.19 LED test pattern print (Function code 68)...................................................... 7-36
1.4.20 Frame pattern print (Function code 69) ......................................................... 7-38
1.4.21 Color test pattern (Function code 71) ............................................................ 7-40
1.4.22 Sensitivity adjustment of density sensor (Function code 72)......................... 7-42
1.4.23 Setting by country (Function code 74)........................................................... 7-43
1.4.24 Sensitivity adjustment of registration mark sensor and check of belt surface
(Function code 75)........................................................................................... 7-45
CHAPTER 7
SERVICE FUNCTIONS
CONTENTS
Confidential