Cover Interlock Switch Service Check - Lexmark T420 Service Manual

4048–00x

Cover Interlock Switch Service Check

Note: Make sure a toner cartridge is installed and the cover closes
all the way, engaging the cover open switch lever.
FRU
Cover Interlock Switch
2-30
Service Manual
Action
Disconnect the cover interlock cable
from the interlock switch.
Push the cover interlock switch to
the closed position and verify
continuity between the bottom and
middle terminals.
Open the switch and verify continuity
between the bottom and top
terminals. The top and middle
terminals should indicate
discontinuity at all times.
• If the switch is good, verify
+5 V dc on the middle spade of
the cable and ground on the top
spade of the cable.
• If voltage is not present, see
Card Service Check" on
page 2-31.
Replace the switch if faulty.
"RIP