Brother HL-2600CN Service Manual page 5


2. STRUCTURE OF THE CONTROL SYSTEM .............................................. IV-27
2.1 Basic Structure................................................................................................................. IV-27
2.2 Control System ................................................................................................................ IV-34
2.3 Main PCB (Video Controller PCB) ................................................................................... IV-42
2.4 Power Supply Unit ........................................................................................................... IV-56
2.5 High Voltage Power Supply Unit...................................................................................... IV-60
2.6 Wiring Diagram ................................................................................................................ IV-63
1. PANEL LAYOUT ............................................................................................ V-1
2. VIDEO CONTROLLER MODE ....................................................................... V-2
2.1 Configuration of Operational Mode ..................................................................................... V-2
2.2 Line Test Mode ................................................................................................................... V-3
2.3 DRAM Test Mode ............................................................................................................... V-7
2.4 Test Print Mode................................................................................................................... V-8
2.5 NVRAM Reset Mode........................................................................................................... V-8
3. ENGINE CONTROLLER MODE .................................................................... V-9
3.1 Configuration of Operational Mode ..................................................................................... V-9
3.2 Operation of Normal Mode................................................................................................ V-11
3.3 Service Mode .................................................................................................................... V-18
3.4 Adjustment Work Procedures ........................................................................................... V-41
CHAPTER VI PERIODIC MAINTENANCE..................................... VI-1
1. GENERAL ..................................................................................................... VI-1
1.1 Handling Precautions......................................................................................................... VI-1
1.2 Periodic Maintenance Cleaning ......................................................................................... VI-4
1.3 Periodic Maintenance Parts and Maintenance Cycle ...................................................... VI-17
2. PERIODIC MAINTENANCE PROCEDURES.............................................. VI-20
2.1 OPC Belt Cartridge Replacement .................................................................................... VI-20
2.2 Fusing Unit Replacement................................................................................................. VI-23
2.3 Transfer Roller 2 Replacement ........................................................................................ VI-27
2.4 Paper Discharger Unit Replacement ............................................................................... VI-30
2.5 Drum Cleaner 2 Replacement ......................................................................................... VI-32
2.6 Ozone Filter Replacement ............................................................................................... VI-35
2.7 Paper Pick-up Roller and Separator Pad 2 Replacement................................................ VI-36
2.8 Transfer Drum 2 Replacement......................................................................................... VI-37