Ricoh DD 5450, Field Service Manual, Page: 284 / 403

282
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Chapter 7 Troubleshooting Guide
1
(29) “E020” is displayed (Tape Dispenser)
Procedures Cause/Detective section Items to be checked Result Countermeasure
1
Does the cutter work properly when
checked using HELP-071?
YES Follow the procedure 2.
NO Follow the procedure 3.
2 Home position switch
Measure the voltage with a tester
when turning the home position
switch of the cutter on and off. Is it
normal?
YES Replace the tape dispenser PCB
unit.
NO Replace the cutter unit.
3
Cutter motor Measure the voltage at the
connector with a tester when the
cutter motor is activated using
HELP-071. Is it +24V?
YES Replace the cutter unit.
Tape dispenser PCB unit NO Replace the tape dispenser PCB
unit.
HELP-071→See page 378
(30) “E021” is displayed (Tape Dispenser)
Procedures Cause/Detective section Items to be checked Result Countermeasure
1
Is the wiring harness (including the
ground wire) of the tape dispenser
securely connected to the printer?
NO Securely connect the connector
(the ground wire).
YES Follow the procedure 2.
2
Tape dispenser PCB unit Does replacing the tape dispenser
PCB unit solve the problem?
YES Finish
Main PCB unit NO Replace the main PCB unit.
(31) “E023” is displayed (Tape Dispenser)
Procedures Cause/Detective section Items to be checked Result Countermeasure
1
Check the FPC label of the tape
dispenser’s thermal head. Is the
TPH resistance rank properly set by
DIPSW of the tape dispenser PCB?
YES Follow the procedure 2.
NO Correctly set the DIPSW.
2
Tape dispenser PCB unit
Does replacing the tape dispenser
PCB unit solve the problem?
YES Finish
Main PCB unit NO
Check the wiring harness. If there
is no problem, replace the main
PCB unit