Cover Interlock Switch Service Check - Lexmark X422 Laser MFP Service Manual

Cover interlock switch service check

Note: Make sure a print cartridge is installed and the cover closes
all the way, engaging the cover open switch lever.
FRU
Cover interlock switch
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 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 2-46.
Replace the switch if faulty.
Diagnostic information
7001–001
"RIP
2-21