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Down sequence control
Down sequence when feeding small size paper
Purpose:
To prevent temperature rise of non-feeding area in the case of continuous print of small size paper (less than A4 of length in width direction), fixing offset or deterioration of fixing film.
Starting conditions:
When the detected temperature of sub thermistor (front) or (rear) reaches 255 deg C or higher for 400 msec continuously.
Operation:
Temperature is reduced by making wider sheet-to-sheet distance with the maximum 4 steps to control the temperature at lower than the target temperature for normal print.
Fixing mode
Step
B4
LGL
B5
EXE
A4R
LTRR
A5R
B5R
EXE-R
Free size
Postcard
Envelope
Plain paper
Thin paper
S-thin paper
Normal
26
45
32
20
13
---
---
1
20
20
20
18
8
---
---
2
12
12
12
14
8
---
---
3
10
10
10
14
8
---
---
4
8
8
8
14
8
---
---
Heavy paper
Normal
17
30
21
17
13
---
---
1
12
20
20
14
8
---
---
2
10
12
12
14
8
---
---
3
8
10
10
14
8
---
---
4
8
8
8
14
8
---
---
Heavy-H paper
Normal
17
25
17
17
13
---
---
1
12
20
12
14
8
---
---
2
10
12
10
14
8
---
---
3
8
10
8
14
8
---
---
4
8
8
8
14
8
---
---
Bond paper
OHP
Normal
13
25
14
17
13
---
---
1
12
20
12
14
8
---
---
2
10
12
10
14
8
---
---
3
8
10
8
14
8
---
---
4
8
8
8
14
8
---
---
Postcard
Normal
---
---
---
---
---
18
---
1
---
---
---
---
---
14
---
2
---
---
---
---
---
10
---
Postcard
3
---
---
---
---
---
10
---
4
---
---
---
---
---
10
---
S-Postcard
Normal
---
---
---
---
---
14
---
1
---
---
---
---
---
10
---
2
---
---
---
---
---
8
---
3
---
---
---
---
---
8
---
4
---
---
---
---
---
8
---
Envelope
Normal
---
---
---
---
---
---
12
1
---
---
---
---
---
---
10
2
---
---
---
---
---
---
8
3
---
---
---
---
---
---
8
4
---
---
---
---
---
---
8
Completion conditions:
When the fixing temperature reaches 175 deg C and lower for 400 msec continuously, the productivity returns to normal.
Related Service Mode
Setting for down sequence start temperature when feeding small size paper
PRINT > SW > 64
<Setting value>
0: +20 deg C
1: +10 deg C
2: 0 deg C [Default: 2]
3: -10 deg C
4: -20 deg C
Down sequence when switching paper size
Purpose:
This down sequence prevents temperature rise of non-feeding area: there can be possible fixing offset or wrinkle of the succeeding paper due to increased temperature of non-feeding area of the preceding paper when continuously making prints or feeding wider length of paper than the preceding paper.
Starting conditions:
If the temperature difference between sub thermistor (front) and main thermistor or between sub thermistor (rear) and main thermistor exceeds 20 deg C (*1) when switching to the paper which has longer width than the preceding paper
Operation:
Pickup of the succeeding paper and power distribution to the heater are stopped as well to decrease the fixing temperature.
Completion conditions:
When the temperature difference between sub thermistor (front) and main thermistor or between sub thermistor (rear) and main thermistor reaches 20 deg C and less (*1)
*1. It is different according to setting value of the user mode (Special mode S or Rotation/collation adjustment).