Test Print Pattern Purpose of use Image
I Solid black To check transfer failure, white line, scratches and mar-
gin.
J Halftone
(dark)
To check the symptom of various image failures such as
transfer failure, lines, uneven density, scratches and
margin.
K Halftone
(light)
To check the symptom of various image failures such as
transfer failure, lines, uneven density, scratches and
margin.
L Grid To check the right angle accuracy and straight line ac-
curacy.
7. Troubleshooting
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