906-Magenta/Cyan Developer Solenoid Service Check - Lexmark C720 Service Manual

5024-001
906—Magenta/Cyan Developer Solenoid Service Check
FRU
1 Check Connector
Check Cable Harness
2 Developer Solenoid
Assembly
(PSL KY/MC)
Front Cover Unit
3 IOD2 P.W.B. Board
4 Main Engine (MCTL
P.W.B.) Boards
Developer Solenoid (PSL MC)
Action
Ensure the magenta/cyan solenoid
connector ECNS on the IOD2 P.W.B.
board is connected.
Ensure the cable harness for (PSL MC) is
not broken.
Replace any damaged parts.
Check the voltage at (PSL MC) ON-N.
Does the voltage drop below +24V
between ECN5-7 and ECN2-6?
• If the voltage drops below +24V, replace
the DE solenoid assembly.
• If this does not fix the problem, replace
the front cover unit.
Check the voltage between ECN1-6 and
ECN2-8.
If the voltage jumps to +24V, replace the
IOD2 P.W.B. board.
If the problem still exists, replace the main
engine (MCTL P.W.B.) board.
Diagnostic Information
2-43