Kyocera KM-4230 Service Manual page 388

(10) Adjusting the fixing pressure (reference)
Adjust fixing pressure when paper creases, fixing is defective, or after the fixing
pressure spring is replaced.
<Procedure>
Start
Enter maintenance mode.
Enter "161" using the numeric
keys and press the print key.
Press the interrupt key.
Press the print key.
Press the interrupt key.
Wait for 30 s and remove
the jammed paper manually.
Is the
width of the
black band printed on
the image (indicating the part
which stopped in the
fixing section)
7.0 ± 0.5
mm?
Yes
Exit maintenance mode.
Clean the heat and
press roller if they are dirty.
End
Turn the fixing pressure nuts to
No
adjust the fixing pressure.
Fixing pressure nuts
• Fixing pressure: 210 N
(both machine front
and rear)
Figure 3-3-92
Figure 3-3-93
2A3/4
7.0±0.5 mm
3-3-79