Lexmark W820 Service Manual page 263

BD1 MCU PWB↔Mailbox Control PWB↔Mailbox/Mailbox
Components
The following table shows the signal names for this BD:
Signal Name Description
MBX IN Monitors the presence of paper at the Entrance Sensor. High=No paper present.
Low=Paper paper present
INTLK ON Monitors the condition of the Mailbox Left Cover. High=Cover open. Low=Cover
closed
JAM SNR ON Monitors the presence of paper at the Bin 10 Jam Sensor. High=No paper present.
Low=Paper present
VER-SNR ON Monitors the presence of paper at Bins 1 through 9. High=Paper present. Low=No
paper present
P/S Switches the Mailbox Drive Motor. High=Off. Low=On
LO Monitors the speed of the Mailbox Drive Motor. High=Within specified range.
Low=Outside specified range (greater than ± 6.5%)
GLOUT Powers the Vertical Sensor LED
4025 Options
5-15
Connector Locations