Copystar CS-1620 - Fixing Temperature System; Fixing Temperature Control Based on Ambient Temperature

2C9
2-1-16
(1) Fixing temperature system
Figure 2-1-19Fixing 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.
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
Temperature
( C)
Preset temperature ( C)
(secondary stabilization)
Ambient temperature
Fixing temperature (
°C)
Lower than 15
°C/59°F
Reference value +10
Higher than or equal to 15
°C/59°F,
lower than 20
°C/68°F
Reference value +5
Higher than or equal to 20°C/68°F,
lower than 31
°C/78.8°F
Reference value
Higher than 31
°C/78.8°F
Reference value -5