Oki IP-6620 Maintenance Manual page 290

5.5.45 System Error 280X: Ink Usage Upper-limit Error
<Description>
The ink usage amount calculated by the printer exceeded the ink cartridge's capacity.
X
0
1
2
3
4
5
6
If this error occurred, the related ink cartridge cannot be used with the printer anymore, even
when ink remains inside. This error is caused by a defective part or sometimes caused by the
improper ink usage, such as improper ink topping up.
<Faulty part>
(1) Capping unit
(2) CAP,MW
(3) PUMP-F-ASSY,MW
(4) INKJET HEAD,MW (print head)
<Action>
Replace the ink cartridge causing the error.
Then check the Items to be Checked on the table below, and perform the actions starting from
the top until the problem is solved.
No
Printer's maintenance and error
1
history
2 Firmware
3
Capping unit
4
Print head
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Ink supply pump
sensor No.
No.1
No.2
No.3
No.4
No.5
No.6
No.7
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
Using CP_Manager, obtain the printer's maintenance and
error history before this error (see 3.8).
Upgrade the firmware to the latest version.
(1) Check that the air release solenoid valve is not soiled
with ink. If soiled, clean it with a cleaning stick and the
cap cleaning liquid.
(2) Check that the pump operates by performing the FILL
CAP or PH.RECOVERY operation. If the pump does not
operate, replace the capping unit.
(3) Regardless of the results of the actions above, replace
the cap and pump corresponding to the error number.
If 11 or more nozzles are clogged on the print head of the
subtank causing the error, perform the FILL CAP or
PH.RECOVERY operation.
If the problem persists, replace the print head.
Action
5-131