Bifold exit jam service check
Action Yes No
Step 1
a Remove any debris from the paper path.
b Reseat the interface cable that is plugged into the SHPF.
c Reset the printer.
Does the problem remain?
Go to step 2. The problem is solved.
Step 2
a Test the motor (bifold roller).
Enter the Diagnostics menu, and then navigate to:
Motor Tests > Booklet Maker Motor Tests > Center fold roller
b Check if the belts, gears, and rollers are properly moving.
Are they properly moving?
Go to step 4. Go to step 3.
Step 3
a Reseat the cable on the motor.
b Make sure that the motor is properly installed.
c Check the motor and cable for damage, and replace if necessary. See
“Motor (bifold roller) removal” on page 471.
Does the problem remain?
Go to step 4. The problem is solved.
Step 4
Check the bifold roller drive and idler gears for wear or damage, and
replace if necessary. See
“Bifold roller gears removal” on page 471.
Does the problem remain?
Go to step 5. The problem is solved.
Step 5
a Test the sensor (booklet maker fold exit).
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > Hole Punch Booklet Finisher Sensor Tests > Fold exit
b Toggle the sensor.
Does the sensor status change while toggling the sensor?
Go to step 8. Go to step 6.
Step 6
a Make sure that the sensor is properly installed.
b Make sure that the sensor is free of debris or dust.
c Reseat the cable on the sensor. Check the cable for damage, and
replace if necessary.
d Check the sensor for damage.
Is the sensor free of damage?
Go to step 8. Go to step 7.
4021, 7421
Diagnostic information
83
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