Brother MFC4820C Service Manual page 137

7.1 CONTROL PANEL...........................................................................................................7-1
7.2 ENTRY INTO THE MAINTENANCE MODE (Menu/Set, *, 2, 8, 6, 4)..............................7-3
7.3 LIST OF MAINTENANCE-MODE FUNCTIONS ..............................................................7-4
7.4 USER-ACCESS TO THE MAINTENANCE MODE..........................................................7-5
7.5 DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS ..........................7-6
7.5.1 EEPROM Parameter Initialization (Function code 01, 91) ...................................7-6
7.5.2 Printout of Scanning Compensation Data (Function code 05) .............................7-7
7.5.3 Test Pattern (Function code 09)...........................................................................7-9
7.5.4 Firmware Switch Setting and Printout (Function codes 10 and 11) ...................7-10
7.5.5 Operational Check of LCD (Function code 12) ..................................................7-13
7.5.6 Operational Check of Control Panel PCB (Function code 13) ...........................7-14
7.5.7 Sensor Operational Check (Function code 32) ..................................................7-15
7.5.8 Transfer of Received Data (Function code 53) ..................................................7-17
7.5.9 Fine Adjustment of Scanning Start/End Position (Function code 54) ................7-19
7.5.10 Acquisition of White Level Data and CIS Scanner Area Setting
(Function code 55) .............................................................................................7-20
7.5.11 Output of Scanning Clock (Function code 59) ...................................................7-20
7.5.12 Carriage Travel and Initial Setup Mode (Function code 63)...............................7-21
7.5.13 Alignment of Vertical Print Lines in Monochrome and in Two Colors and
Adjustment of Head Skew (Function code 65)...................................................7-22
7.5.14 Margin Adjustment in Near-edge Printing (Function code 66) ...........................7-24
7.5.15 Updating of Property Data (Function code 68)...................................................7-26
7.5.16 Initial Adjustment of PWM Value (Aging of the Carriage) (Function code 69) ...7-27
7.5.17 EEPROM Customizing (Function code 74) ........................................................7-28
7.5.18 Purging Operation (Function code 76) ...............................................................7-29
7.5.19 Display of the Equipment's Log (Function code 80)...........................................7-30
7.5.20 Equipment Error Code Indication (Function code 82) ........................................7-31
7.5.21 Output of Transmission Log to the Telephone Line (Function code 87) ............7-31
7.5.22 Cancellation of the Pin TX Lock Mode (Not applicable to American models)....7-32
CHAPTER 7 MAINTENANCE MODE
CONTENTS