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ERROR CODE and TROUBLESHOOTING
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2) Investigating cause / taking measures
*1 How to install the equipment horizontally
Repeat steps 72 and 73 in the unpacking instructions (shown below) to confirm that the equipment is
horizontally installed.
*2 The toner density is reset to the normal controlling level by replacing the developer material as the
last step. Therefore the only measure to be taken in this step is the correction of the main (separation)
pole position.
*3 How to correct the main (separation) pole position of the developer sleeve
Turn the pole position adjustment plate of the developer unit counterclockwise by 1 scale.
If the plate is adjusted to the end, turn it counterclockwise by the amount equivalent to 1 scale.
(Do not turn it more than 1 scale.)
Fig.8-43
Cause/Section Step Check item Measures
Equipment
installation
1 Check if the equipment is leaning to
the right side using a level. *1
Reinstall the equipment horizontally.
Main charger 2 Are the needle electrode, grid and
case dirty?
Clean or replace them.
Discharge
LED
3 Is the discharge LED lit properly? Replace the discharge LED.
Main pole
position
4 If no abnormalities are found in the 3
items above, the main pole position
may deviate from the specified range
or the toner density may be
controlled to be lower than the
specified range. (Checking
impossible) *2
Correct the main (separation) pole
position. *3
Developer
material
5 Is the layer of the developer material
on the developer sleeve thin or
lacking?
Replace the developer material.
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