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67
UF-5500 / 4500
The fuser and developer
start working.
The temperature
control starts working.
Detection
6
Checks the temperature of 235
㷄
or above.
(The detection takes place every 10 msec.)
Detection
7
Checks the short of the thermistor (AD: 0).
(The detection takes place every 10 msec.)
Detection
8
When the unit can not be controlled by
the software, it should be stopped forcibly
by the hardware(ASIC). (250
㷄
)
Detection
9
Thermostat temperature reached 160
㷄
.
Paper is picked up.
When one of the followings happened, processing glitches are executed and unit goes
to "Info Code; 021".
[Low temperature detection]
Detection
1
: The AD value of the temperature does not go up 4 or more in 10 sec.
after the heater is turned ON.
Detection
2
: The temperature does not reach primary stable temperature (170
㷄
)
within 50sec after the heater is turned ON.
Detection
3
: The temperature does not reach the secondary stable temperature
(170
㷄㪆
205
㷄
) within 70sec from primary stable temperature (170
㷄
).
Detection
4
: The temperature decreased 40deg (130
㷄
/165
㷄
) or more by the temperature
control after reaching the secondary stable temperature (170
㷄㪆
205
㷄
).
Detection
5
: The temperature does not reach the primary stable temperature (170
㷄
)
within 35sec from detection temperature 1 (70
㷄
).
[High temperature detection]
Detection
6
: During printing the temperature became 235
㷄
or above.
Detection
7
: During printing the short of the thermistor (AD: 0) was detected.
Detection
8
: When the unit can not be controlled by the software, it should be stopped
forcibly by the hardware (250
㷄
).
Detection
9
: The thermostat temperature reached 160
㷄
.
Detection
j
: When the unit can not be controlled by the software,it should be stopped
forcibly by the hardware(comparator).(240
㷄㪀
Detection
j
When the unit can not be controlled by
the software,it should be stopped forcibly
by the hardware(comparator).(240
㷄
)
10sec
0sec
50sec
Detection temperature 3
䋨
235
㷄䋩㩷
Detection temperature 5
䋨
250
㷄䋩
S
e
co
nd
ar
y
st
ab
le
te
mpe
ra
tu
re
(170
㷄㪆
20
5
㷄䋩
Detection temperature 2
䋨
130
㷄㪆
165
㷄䋩
Primary stable
temperature
䋨
170
㷄䋩
Detection temperature 1
䋨
70
㷄䋩
120sec
Detection
2
The temper
ature does not reach the
pr
imar
y stab
le temper
ature (170
㷄
) within
50sec after the heater is tur
ned ON.
Heater is tur
ned ON.
Detection
3
The temper
ature does not reach the secondar
y
stab
le temper
ature (170
㷄㪆
205
㷄
) within 70sec
from pr
imar
y stab
le temper
ature (170
㷄
).
Detection
5
The temper
ature does not reach the pr
imar
y stab
le temper
ature
(170
㷄
) within 35sec from detection temper
ature1 (70
㷄
).
Detection
1
The AD v
alue of the temper
ature does not go up
4 or more in 10sec after the heater is tur
ned ON.
Detection
4
Checks that the temperature decreased
40 deg (130
㷄㪆
165
㷄
) or more from the
secondary stable temperature.
(The detection takes place every 10 msec.)
Detection temperature 4
䋨
240
㷄䋩㩷
Summary of Contents for UF-4500
Page 180: ...180 UF 5500 4500 ...
Page 248: ...248 UF 5500 4500 13 5 Test Chart 13 5 1 ITU T No 1 Test Chart ...
Page 249: ...249 UF 5500 4500 13 5 2 ITU T No 2 Test Chart ...
Page 281: ...281 UF 5500 4500 10 10 11 15 12 17 18 19 20 21 22 23 24 28 29 30 27 25 26 21 13 14 16 30 ...
Page 287: ...287 UF 5500 4500 130 131 132 133 134 135 136 137 138 139 140 141 PCB2 A UF 5500 only CN1 ...
Page 297: ...297 UF 5500 4500 ...
Page 305: ...305 UF 5500 4500 ...
Page 311: ...311 UF 5500 4500 501 502 503 504 506 507 505 508 509 511 510 514 513 512 P51 P53 P54 A51 P52 ...
Page 362: ...362 UF 5500 4500 ...