Brother International MFC 8890DW Service Manual - Page 386
Service Mode, Entry Into The Maintenance Mode - drum error reset
UPC - 012502622673
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CHAPTER 7 SERVICE MODE The maintenance mode is exclusively designed for the purpose of checks, settings and adjustments using the buttons on the control panel or open/close of the front cover. You can perform operational checks of panel PCB, sensors, perform a print test, display the log information or error codes. CONTENTS 1. ENTRY INTO THE MAINTENANCE MODE 7-1 2. LIST OF MAINTENANCE-MODE FUNCTIONS 7-2 3. USER-ACCESS TO THE MAINTENANCE MODE 7-3 4. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS 7-4 4.1 EEPROM Parameter Initialization (Function code 01/91 7-4 4.2 Printout of Scanning Compensation Data (Function code 05 7-5 4.3 Placement of FB Unit in Position for Transportation (Function code 06 7-8 4.4 ADF Performance Test (Function code 08 7-8 4.5 Test Pattern 1 (Function code 09 7-9 4.6 Firmware Switch Setting and Printout 7-10 4.7 Operation Check of LCD (Function code 12 7-14 4.8 Operational Check of Control Panel PCB (Function code 13 7-15 4.9 ROM Version Check (Function code 25 7-16 4.10 Sensor Operational Check (Function code 32 7-17 4.11 PC Print Function (Function code 43 7-19 4.12 Switching the USB Setting (Function code 45 7-22 4.13 Pan-nordic Select Country (Function code 52 7-23 4.14 Received Data Transfer Function (Function code 53) (only model with FAX) ..... 7-24 4.15 Fine Adjustment of Scan Start/End Positions (Function code 54 7-26 4.16 Acquisition of White Level Data and CCD Scanner Area Setting (Function code 55 7-28 4.17 Paper Feeding and Ejecting Test (Function code 67 7-29 4.18 EEPROM Customizing (Function code 74 7-29 4.19 Operational Check of Fans (Function code 78 7-31 4.20 Display of the Machine's Log Information (Function code 80 7-32 4.21 Error Code Indication (Function code 82 7-34 4.22 Output of Transmission Log to the Telephone Line (Function code 87 7-34 4.23 Counter Reset After Replacing the Fuser Unit, Laser Unit and Paper Feed Kit (Function code 88 7-35 4.24 Maintenance Mode Finish (Function code 99 7-35 5. OTHER SERVICE FUNCTIONS 7-36 5.1 Resetting the Periodical Replacement Parts Life 7-36 5.2 Develop Roller / Developing Bias Voltage Counter Reset Function 7-38 5.3 Drum condensation countermeasure mode 7-39 Confidential