Oki B6500 - Perpendicularity

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Chapter 1 Troubleshooting
6.4 Perpendicularity
Measurement of the perpendicularity for suppressing inclines of ROS and OPC.
Check the perpendicular line to the horizontal line to measure the horizontal distance at the point 114.5
mm away vertically from center of top horizontal line.
Reference: less than +/-0.8 mm
JG54A3AA