This chapter describes the maintenance mode which is exclusively designed for the purpose of
checks, settings and adjustments using the keys on the control panel.
You can customize the EEPROM according to the shipment destination of the machine
concerned. In addition, you can perform operational checks of the LCD, control panel PCB or
sensors, perform a print test, display the log information or error codes, and modify firmware
switches (WSW).
8.1
8.2
8.3
8.4
8.4.1
8.4.2
8.4.3
Placement of CIS Unit in Position for Transportation (Function mode 06).......... 8-8
8.4.4
ADF Performance Test (Function mode 08) ....................................................... 8-9
8.4.5
Test Pattern 1 (Function mode 09).................................................................... 8-10
8.4.6
8.4.6.1
Firmware switch setting (Function mode 10) ............................................ 8-11
8.4.6.2
Printout of firmware switch data (Function mode 11)................................ 8-14
8.4.7
Operation Check of LCD (Function mode 12) ................................................... 8-16
8.4.8
Operational Check of Control Panel PCB (Function mode 13) ......................... 8-17
8.4.9
Sensor Operational Check (Function mode 32) ................................................ 8-18
8.4.10 Received Data Transfer Function (Function mode 53)
(MFC7420/7820N only) .................................................................................... 8-20
8.4.11 Fine Adjustment of Scan Start/End Positions (Function mode 54) ................... 8-22
(Function mode 55) ........................................................................................... 8-24
8.4.13 Paper Feeding and Ejecting Test (Function mode 67)...................................... 8-24
8.4.16 Machine Error Code Indication (Function mode 82).......................................... 8-28
CHAPTER 8 MAINTENANCE MODE
CONTENTS
Confidential