2
2
2-80
2-80
Process/Operation > Fixing System > Controls > Down Sequence Control
Process/Operation > Fixing System > Controls > Down Sequence Control
Operation:
A temperature is decreased by increasing a paper interval, and the temperature is
controlled at a slightly lower level than the target temperature at normal printing
Paper type
( ): Paper weight (g/m
2
)
Resolution
(600/1200dpi) *
Target
temperature
(deg C)
speed
(ppm)
Plain paper 1 (65 to 82) / Recycled paper (65 to
82) / Pre-punched paper / Tracing paper / Washi
(JPN paper) (93)
600
134 to 155
15 to 4
Thin paper (60 to 64) / Color paper (65 to 82)
129 to 145
Plain paper 2 (83 to 105) / Bond paper (80 to 90)
144 to 160
Plain paper 1 (65 to 82) / Recycled paper (65 to
82) / Pre-punched paper / Tracing paper / Washi
(JPN paper) (93)
1200
119 to 133
8 to 2
Thin paper (60 to 64) / Color paper (65 to 82)
116 to 128
Plain paper 2 (83 to 105) / Bond paper (80 to 90)
123 to 143
Heavy paper 1 (106 to 163) / Heavy paper 2 (164
to 209) / Coated paper 1 (106 to 163)
600/1200dpi
128 to 140
Heavy paper 3 (210 to 220) / Texture paper (150)
/ Postcard, 4 on 1 Postcard (190) / Tab paper (160
to 203) / Coated paper 2 (164 to 209)
138 to 150
Envelope
132 to 140
Transparency
129 to 145
* Half-speed control is executed for 1200dpi processing.
Related service mode:
• Down sequence start temperature setting when small-size paper is fed
(Lv.1) COPIER > OPTION > IMG-SPD > FX-D-TMP
<Setting value>
-4:
-8 deg C
-3:
-6 deg C
-2:
-4 deg C
-1:
-2 deg C
0:
0 deg C [Default]
+1:
+2 deg C
+2:
+4 deg C
+3:
+6 deg C
+4:
+8 deg C
T-2-47
● Down sequence when the paper size is switched
Purpose:
During continuous printing, when a succeeding sheet with a wider width than a preceding
sheet is fed, temperature at the non paper feed area increases, and it may cause fixing
offset and wrinkles, etc. This down sequence controls temperature increase at the non
paper feed area.
A4
A4R
Non-feeding area
Non-feeding area
Film
Startup condition:
Executed when the difference between the higher temperature detected by either Sub
Thermistor 1 (TH3) or Sub Thermistor 2 (TH4) and the temperature of the Main Thermistor
(TH1) is the specified temperature (5 to 30 deg C) or higher at the timing when a sheet with
a wider width than a preceding sheet is fed during printing.
Operation:
The paper interval is increased to decrease temperature, and feeding the succeeding sheet
and power supply to the Heater are stopped.
Termination condition:
This down sequence is terminated at the point when any of the following conditions is
satisfied.
• The difference between the higher temperature detected by either Sub Thermistor 1
(TH3) or Sub Thermistor 2 (TH4) and the temperature of the Main Thermistor 1 (TH1)
has become the specified temperature (5 to 30 deg C) or less.
• 30 seconds at maximum have elapsed since the preceding sheet passed the Fixing
Nip.
F-2-112
