Oki IP-6620 Maintenance Manual page 289

5.5.44 System Error 271X: Ink Supply Pump Error (LCIS model)
<Description>
The position of the subtank sensor X does not change after a specific time regardless of the
operation of the motor to supply ink to the subtank.
X
0
1
2
3
4
5
<Faulty part>
(1) PCB-ASSY-ACT3
(2) SUPPLY PUMP, MW
<Action>
Check the Items to be Checked on the table below, and perform the actions starting from the top
until the problem of the ink supply pump that caused the error is solved.
No
1 Harness condition
2 Motor and sensor operation
3 SUPPLY PUMP
4 PCB-ASSY-ACT3
5-130
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Ink supply pump No.
No.1
No.2
No.3
No.4
No.5
No.6
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
Check the condition of the motor and sensor harnesses
(correctly connected to the proper connectors, not broken,
trapped, or damaged).
Operate the ink supply pump that caused the error by
executing TO SUBTANK or TO INKPAC in ACTUATORS
menu in maintenance mode to check the motor operation.
If it does not operate, the problem is related to the motor. If it
operates, the problem is related to the sensor or the roller
(pump).
Stop the operation with STOP(CLOSE).
Replace the SUPPLY PUMP.
Replace the PCB-ASSY-ACT3.
Action