Oki IP-6620 Maintenance Manual page 109

(3) PH CHECK PATTERN
This menu is used to print a pattern to evaluate the need to replace the print heads.
Select PH CHECK PATTERN with the Up and Down buttons, and then press the OK button.
>PH MAINTENANCE
 PH CHECK PATTERN
>>PH CHECK PATTERN
 PRINT HEAD : 1234567
Move the cursor with the Right and Left buttons, and toggle a digit with the Up and Down
buttons.
A digit that has been toggled disappears.
Finish the selection and press the OK button.
>>PH CHECK PATTERN
 PRINT HEAD : 1
Press the OK button to execute the operation.
>>PH CHECK PATTERN
EXECUTE OK?
The print head check pattern is printed.
>>PH CHECK PATTERN
EXECUTING...
Chapter 3 Maintenance Mode Functions and Operations
◎
◎
◎
5
◎
OKI Data Infotech Corporation CONFIDENTIAL
3-69