Lexmark W820 Service Manual page 273

BD2 HCF PWB↔HCF Trays 3 and 4 Components
The following table shows the signal names for this BD:
Signal Name Description
SNR#TAROL4 Monitors paper travel between Tray 4 and Tray 3. High=Paper present. Low=Paper not
present
L/H#INTLK Monitors the HCF Cover Interlock Switch. High=Cover closed. Low=Cover open
CL$FEED2 Controls Tray 3 Feed Clutch. High=On (feed). Low=Off
MOT$LIFT2 Switches Tray 3 Lift Motor. High=On. Low=Off
SNR#NOP2 Monitors the level of paper in Tray 3
SNR#LVL2 Monitors the position of Tray 3. High=In position. Low=Not in position
SNR##SIZE2 Analog signal from the Tray 3 Size Sensor
CL$FEED3 Controls Tray 4 Feed Clutch. High=Off. Low=On (feed)
MOT$LIFT3 Switches Tray 4 Lift Motor. High=On. Low=Off
SNR#NOP3 Monitors the level of paper in Tray 4
SNR#LVL3 Monitors the position of Tray 4. High=In position. Low=Not in position
SNR##SIZE3 Analog signal from the Tray 4 Size Sensor
A, B, /A, /B Duplex Motor stepper signals
4025 Options
5-25
Connector Locations