Ricoh DD 5450, Руководство по обслуживанию на месте, Страница: 270 / 403

268
７
Chapter 7 Troubleshooting Guide
Procedures Cause/Detective section Items to be checked Result Countermeasure
1 Ink Is enough ink left in ink pack? NO Replace the ink pack.
2 Setting method of ink pack Is the ink pack set properly? NO Set ink pack properly and instruct
user how to set one.
3 Main PCB unit
Is LED on the ink detection PCB
unit lit?
YES
Check bundled wire and
connectors and replace main
PCB unit.
4 Ink detection PCB unit
Is enough ink left in drum?
(Has ink reached detection needle
for the ink detection PCB unit?)
YES Replace the Ink detection PCB
unit.
5 Does ink pump operate? NO Follow the procedure 7.
6
Foreign object in ink pump Is trouble cleared by cleaning
inside of ink pump?
YES Finish
Ink pump NO Replace the ink pump.
7 24V power supply
Measure the voltage between
CN2-1 and CN2-5 of the 24V
power supply with a tester.
Is the v24V?
NO Replace the 24V power supply.
Ink pump motor
Does voltage between drive PCB
unit CN6-24 and -25 show 24V?
YES Replace the ink pump motor.
8
Drive PCB unit
Does replacing the drive PCB unit
solve the problem?
YES Finish
Main PCB unit NO
Check bundled wire and
connectors and replace main
PCB unit.
1
(11) “NO INK” is displayed
HELP-005→See page 304