Canon NP6251 Service Manual page 315

Copy Speed Down Sequence
The machine is designed to turn out 50 copies normally and 60 copies when making
one-sided copies of one original.
To ensure good fixing, however, it uses a longer sheet-to-sheet distance, thereby
keeping the fixing temperature to a specific value when the surface temperature of the
fixing roller is as shown in Table 6-104 as detected by the main thermistor (TH1).
Down
sequence
50 cpm recovery
mode
40 cpm mode
35 cpm mode
Copying stop
Stream reading
50 cpm mode
60 cpm stream reading
mode recovery mode
COPYRIGHT © 1997 CANON INC.
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Condition 60 min after
power-on
170°C
165°C
160°C
155°C
Table 6-104
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 6 FIXING SYSTEM
60 min and later
after power-on
175°C
170°C
165°C
160°C
180°C
185°C
6-7