Copystar CS-2550 - Fixing Temperature System; Fixing Temperature Control Based on Ambient Temperature

2FT
2-1-16
(1) Fixing temperature system
Figure 2-1-19 Fixing temperature system
Warm-up control
1. 500 ms after the fixing heater S (FH-S) turns on, the fixing heater M (FH-M) turns on.
2. When the fixing temperature reaches preset temperature, both fixing heater S (FH-S) and fixing heater M (FH-
M) turn off simultaneously.
Ready state control
1. When the fixing temperature drops to the preset temperature, fixing heater S (FH-S) turns on, and after speci-
fied time, the heater turns off.
2. When fixing heater S (FH-S) turns off, fixing heater M (FH-M) turns on at the same time, and after specified
time, the heater turns off.
3. The operation above is repeated to keep the fixing temperature to the preset temperature.
If a temperature more than or equal to the preset temperature + 20
°C/68°F is detected, both fixing heater S
(FH-S) and fixing heater M (FH-M) are turned off forcibly.
(2) Fixing temperature control based on ambient temperature
This machine performs fixing temperature control based on the ambient temperature.
Temperature
( C)
Preset temperature ( C)
(secondary stabilization)
Fixing heater S (FH-S)
Fixing heater M (FH-M)
HEAT signal
HEAT signal
Time
500 ms
On
On
On
On
On
On
Off
Off
Off
Off
Warm-up
control
Ready state
control
Ambient temperature
Fixing temperature (°C)
Lower than 13
°C/55.4°F
Reference value +10
Higher than or equal to 13°C/55.4°F,
lower than 18
°C/64.4°F
Reference value +5
Higher than or equal to 18
°C/64.4°F,
lower than 31
°C/87.8°F
Reference value