Oki ML421 Series, Руководство по обслуживанию, Страница: 28 / 133

42113901 Rev.2
28 /
Oki Data CONFIDENTIAL
Stop
Mode up
Mode down
Temp
125
°
C
118
°
C
116
°
C
(4) Overheat alarm
(a) Head overheat alarm
The voltage of the output HTEMP signal of the thermistors, one of which is contained
in the print head and the other in the SP/LF driver, is monitored by the A/D port of
the MPU to control the voltage.
Mode and print control
Mode
1
2
3
4
5
6
7
PrintSpeed
100%
100%
100%
90%
80%
70%
Stop
DUTY
100%
87%
30%
13%
9%
5%
0%
Pass
1
1
1
1
1
1
–
• Characters less than 38ips
Mode
1
2
3
4
5
6
7
PrintSpeed
100%
85%
70%
55%
40%
30%
Stop
DUTY
100%
87%
30%
13%
9%
5%
0%
Pass
1
1
1
1
1
1
–
• Characters more than 38ips
Mode
1
2
3
4
5
6
7
PrintSpeed
100%
85%
70%
100%
80%
50%
Stop
DUTY
100%
87%
30%
13%
9%
5%
0%
Pass
1
1
1
2
2
2
–
• Only Image
• When the temperature is between 118
°
C and 125
°
C, the mode switches sequentially
to higher level. When the temperature falls below 116
°
C, the mode switches to lower
level.
• When the temperature exceeds 125
°
C, printing will stop.
• When temperature gradient is steep, higher mode shall be specified directly.