Ricoh DD 5450, Field Service Manual, Page: 267 / 403

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Chapter 7 Troubleshooting Guide
Procedures Cause/Detective section Items to be checked Result Countermeasure
1
Has “MASTER EJECTION
ERROR” actually occurred?
YES Follow the procedure 3.
2
Master eject jam sensor
Does replacing the master eject
jam sensor solve the problem?
YES Finish
Main PCB unit NO
Check the bundled wire and
connectors and then replace the
main PCB unit.
3 Eject motor
Does the eject motor rotate
normally?
NO Refer to “(6) Malfunction of Eject
Motor”.
4 Smear on master clamp Is the master clamp section dirty
with ink or oil?
YES Clean the master clamp section.
5 Master ejection box
Is the stripper finger or springs
damaged?
YES Replace any damaged stripper
finger or springs.
6
Master eject jam sensor Is the drum removal position within
reference value?
NO Adjust the drum removal position.
Main PCB unit YES Check and adjust C mode.
Procedures Cause/Detective section Items to be checked Result Countermeasure
1 Load on drive system
Is the trouble cleared by adjusting
tension of the master feeding
unit timing belt or lubricating the
bearing?
YES Finish
2 24V power supply
Measure the voltage between
CN51-5 (+24) and CN51-1 (GND)
of the 24V power supply with a
tester. Is it +24V?
NO Replace the 24V power supply.
3
Drive PCB Unit
Does replacing the drive PCB unit
solve the problem?
YES Finish
Main PCB unit NO
Check the bundled wire and
connectors and then replace the
main PCB unit.
1
(5) “MASTER EJECTION ERROR” is displayed
HELP-009→See page 313
(4) M alfunction of Master Feed Stepping Motor