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NIP Band Width Adjustment.....................................................................................................................126

Cleaning Roller..........................................................................................................................................127

Duplex Unit (Duplex Models B244/B269/B277 Only)..........................................................................128

Duplex Exit Sensor....................................................................................................................................128

Duplex Entrance Sensor............................................................................................................................129

Duplex Inverter Sensor..............................................................................................................................130

Duplex Transport Motor...........................................................................................................................131

Duplex Inverter Motor...............................................................................................................................131

Duplex Control Board...............................................................................................................................132

Other Replacements......................................................................................................................................133

Quenching Lamp.......................................................................................................................................133

High-Voltage Power Supply Board.........................................................................................................133

BICU (Base-Engine Image Control Unit).................................................................................................134

Main Motor...............................................................................................................................................135

Rear Exhaust Fan (B244/B269/B277 Only).......................................................................................135

Left Exhaust Fan.........................................................................................................................................136

PSU (Power Supply Unit)..........................................................................................................................137

Gearbox.....................................................................................................................................................138

Copy Adjustments Printing/Scanning..........................................................................................................141

Printing........................................................................................................................................................141

Scanning....................................................................................................................................................143

ADF Image Adjustment.............................................................................................................................145

5. System Maintenance

Service Program Mode.................................................................................................................................147

How to Enter the SP Mode.......................................................................................................................147

SP Mode Tables.............................................................................................................................................149

Using SP Modes.............................................................................................................................................150

Adjusting Registration and Magnification...............................................................................................150

ID Sensor Error Analysis (SP 2221).........................................................................................................151

Display APS Data (SP 4301 1)................................................................................................................151

Memory Clear...........................................................................................................................................153

Input Check (SP 5803).............................................................................................................................155

Output Check (SP 5804)..........................................................................................................................158