Lexmark Optra S Service Manual - Page 78

4059-XXX Fuser Envelope Conditioner Solenoid Service Check The fuser solenoid is in models 3455, 2455, 2450, 2420, 1855, 1650, 1625 and 1620 and the World Trade printer model 2450. Service Tip: Try changing the envelope enhance level setting. A different setting may correct the problem. Note: The level I fuser board uses +42 V dc which is derived from the LVPS via the interconnect board (J1) and the envelope conditioner cable. The solenoid is controlled by logic located on the engine board. The level II fuser board does not use the +42 V dc and receives control for the solenoid from logic located on the engine board. A level II engine board can be used with a level I fuser board provided that the jumpers at JP-1 and JP-2 are correctly positioned as described in configuration 2. If the jumpers are not correctly positioned on the engine board, damage can result to the fuser board. Engine Board Jumper Configurations Refer to the "Fuser Board" on page 5-11, "Level 1 Engine Board" on page 5-9 and "Level 2 Engine Board" on page 5-10 to identify the level boards installed in your printer. 1. A level I fuser board and a level I engine board require a envelope conditioner cable and no jumpers on the engine board. 2. A level I fuser board and level II engine board require jumpers at locations JP1-2 to JP1-3 and JP2-2 to JP2-3 on the engine board. 3. A level II fuser board and level II engine board require jumpers at locations JP1-1 to JP1-2 and JP2-1 to JP2-2 on the engine board. 2-51 4059 Service Manual