Oki LP-1040 Maintenance Manual page 594

Example 1: If the toner fusing performance is getting worse in continuous mode
The heat roller temperature is probably too low.
(a) Decrease the value of parameter 738 by
10 degrees (the minimum temperature is
increased by 10°C).
(b) Increasing the fuser unit minimum
temperature makes it possible to print
with a higher fuser unit temperature.
Note
If you decrease the value too much, the
temperature range in which printing is possible
will become too small, thus decreasing the
interval between warming up operations. Do not
decrease the value by more than 10 degrees.
Example 2: If the toner fusing performance is getting worse with long scale printing
The cause is probably that heating is insufficient for long scale printing.
(a) Increase the values of parameters 552 to
555 by 10 degrees each (the maximum
temperature is increased by 10°C).
(b) Increasing the heat roller maximum
temperature makes it possible to increase
the heating level of the fuser unit.
Note
If you increase these values too much, the toner
will get too hot, causing print problems, or the
fuser unit will warm too much, causing an error.
Do not increase the values by more than 10
degrees.
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