Dead Printer Service Check - Lexmark X548 Series Service Manual

7525-63x

Dead printer service check

A dead printer is a condition where the display is blank, the LED on the operator panel is off, the fan does not
turn, no motors turn, and the fuser does not heat.
If a 650-sheet duo drawer is installed, remove the option and check the base printer for correct operation. If the
base printer operates correctly, replace the 650-sheet duo drawer.
Warning: Observe all necessary ESD precautions when removing and handling the RIP board or any installed
option cards or assemblies. See
Remove any input paper handling options from the printer.
Step Questions / actions
Check the AC line voltage.
1
Is the line voltage correct?
2 Is the AC line cord damaged?
3 Is the JLVPS1 cable correctly connected at
JLVPS1 on the RIP board?
Turn the printer off, and then on.
4
Does the problem persist?
Warning: Damage to the printer is possible.
5
Be careful to touch only one conductor at a
time. Rest the probe against the connector to
steady it.
With the printer on.verify the following values
at JLVPS1:
JLVPS1 (exposed conductors)
Pin Value
1 +5 V dc
3 +5 V dc
5 +5 V dc
7 +24 V dc
9 +24 V dc
11 +24 V dc
Are the values approximately correct?
Service Manual
2-34
"Handling ESD-sensitive parts" on page
Go to step 2.
Replace the line cord.
Go to step 5.
Go to step 5.
Replace the RIP board. See
"RIP board removal" on
page
Pin Value
2 Ground
4 Ground
6 Ground
8 Ground
10 Ground
12 Ground
16 Ground
Yes
Inform the customer.
Go to step 3.
Reconnect the JLVPS1
cable, and go to step 4.
Problem resolved.
Replace the LVPS. See
"Low-voltage power
4-19. supply (LVPS) assembly
removal" on page
4-1.
No
4-48.
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