Symptoms; Base Printer Symptoms; Cooling Fan Service Check - Lexmark MS410 Series Service Manual

Symptoms

Base printer symptoms

Symptom
Buttons on the control panel failed to
respond
• Fan does not come on
• Fan noisy
No display
Printer not communicating with host
Machine does not POR (no power)
Toner starvation and 31.4x error code is
displayed
Print job not printing on network
attached printer
Network attached printer offline

Cooling fan service check

Action
Step 1
a
Make sure that the cable JFAN1 is properly connected to the controller
board.
b
Check if the cooling fan is rotating properly.
Is it rotating properly?
Step 2
a
Turn off the printer, and disconnect JFAN1 from the controller board.
b
Turn on the printer, and measure the voltage across JFAN1.
Is the voltage approximately 24 V?
Step 3
Is the fan idle?
Action
Go to "Control panel button service check" on page
Go to "Cooling fan service check" on page
Go to "Control panel service check" on page
Go to "USB print service check" on page
1
Check the power cord for continuity. Replace if necessary.
2
Make sure the nominal voltage source is within specification. See
"Electrical specifications" on page
3
If the problem remains, go to
page 100.
Go to "Toner starvation service check" on page
Go to "Network service check" on page
Diagnostic information
99
101.
99.
102.
103.
239.
"Dead machine service check" on
102.
104.
Yes No
Go to step 2. Replace the cooling
fan. See
removal" on page
163.
Go to step 3. Replace the controller
board. See
board removal" on
page
Replace the cooling The problem is solved.
fan. See "Cooling fan
removal" on page
163.
4514-420, -430
"Cooling fan
"Controller
164.