2-184 MFP Service Manual
7500-432, -632, and -832
Printer left door open
3 Check the switch (printer front door interlock) connection.
Is the switch (printer front door interlock) properly
connected?
Replace the switch
(printer front door
interlock).
Go to “Switch
(printer front
door interlock)
removal” on
page 4-4.
Replace the
connection.
4 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-119.
Problem solved.
Step Check Yes No
1 Is the printer left door assembly opening and closing
properly?
Go to step 2. Check the printer
left door assembly
for deformation
and reinstall it.
2 Check the switch (printer left door interlock) for operation.
1. Enter the Diagnostics Menu.
2. Touch BASE SENSOR TEST.
3. Touch Cover and Door.
4. Touch Door A left side.
Open the printer left door assembly, and check it.
Does the display on the operator panel change every time
the switch actuator is operated?
Go to step 4. Go to step 3.
3 Check the switch (printer left door interlock) connection.
Is the switch (printer left door interlock) connected properly?
Replace the switch
(printer left door
interlock).
Go to “Switch
(printer left door
interlock)
removal” on
page 4-76.
Replace the
connection.
4 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-119.
Problem solved.
Step Check Yes No
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