Oki ES3640MFP Service & Troubleshooting Manual page 47

Generating and Analyzing Service Test Prints
Generating and Analyzing 100% Solid Fill Test Pages
These prints consist of 100% solid fill in CMYK. Each color can be selected
individually or in combinations.
Enter Service Mode by holding down the menu up / menu down and help buttons at the same time
while powering up the printer unit. (This may take up to 60 seconds.
The System Maintenance Menu will appear. Down Arrow to "Diagnostic Mode" and press "Enter"
Down arrow to "Test Print" and Select "Enter"
Select "Enter" - Select either "Face Up" or "Face Down" – Select "Enter"
Page down to "Job Offset" - Select "Enter" - Select "off" - Select "Enter"
Page down to "Duplex"- Select "Enter"- Select "Off"- Select "Enter"
"Print Execute" will appear. Down arrow to "Output Bin"
Test Print
Print Execute
Output Bin
Face Down
Test Print
Job Offset
Test Print
Duplex