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What have you done so far? Did you clean dust proof glass?
Practice makes perfect
If it ain't broke, don't fix it
A picture is worth a thousand words
If you want something done right, you have to do it yourself
Laser power shortage error
At the time of measurement of 8 bright section potential
VI at potential control, the grid bias Vgrid is more than
100 V at least at one point.
Dirt is applied to the dust prevention glass.
Laser is not applied correctly.
1. Clean the dust prevention glass.
2. Check the connection of the laser scanner unit.
(Connection of the connector, Shorting, Wire caught by
parts)
3. Replace the parts.
Laser scanner unit (Bk)
Laser interface PCB
Comment