Canon iR C2880 series, Руководство по обслуживанию

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Chapter 9
9-8
9.2.2 Down Sequence Control
9.2.2.1 Down Sequence Control
0014-5555
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
This equipment runs down-sequence control in the cases listed below. Down-sequence control decreases the print speed by lengthening the interval between sheets
in order to prevent film deterioration caused by heated edge of the fixing film during continuous printing of small-sized (smaller than A4R) paper.
- When the sub-thermistor 1 temperature reading exceeds the readings listed below
- When the sub-thermistor 2 temperature reading exceeds 220 degrees C
Also in the case of uncertain paper size (e.g., by manual feeding or unspecified paper size) it executes the down sequence control as well as in the case of printing
small sized papers.
The following table indicates the down sequences in accordance with the paper type).
T-9-10
*1 rough paper: heavy paper (106 to 169 g/m2), bond paper (64 to 105 g/m2), coated paper (106 to 169 g/m2), label paper.
*2 extra heavy paper (170 to 220 g/m2), extra heavy coated paper (170 to 20 g/m2), Jpn postcard, 2-pane Jpn postcard, 4-pane Japan postcard, envelope.
*3 For settings and details of special fixing mode 2, see the User's Guide.
In the case of continuous print of the small size paper (the width less than A4R), it executes fixing film edge cooling control to prevent film deterioration caused
by heating of the fixing film edge, as opposed to the down sequence.
9.3 Film Unit Pressurizing Mechanism
9.3.1 Pressure/release control
0014-6432
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
This machine does the control to make pressuring/releasing the fixing film unit to prevent the fixing film being transformed.
Pressuring/releasing of fixing film unit are regulated by pressure plate [1] and releasing lever [2]. Pressure plate [1] pushes fixing film unit [4] by a spring to press
it to pressure roller [5]. Release lever [2] is rotated by fixing motor (M3), pushes pressure plate [1] down to release fixing film unit [4] from pressure roller [5].
pressuring operation
Fixing motor (M3) rotates in a positive direction. The pressure plate [1] puts down the fixing film unit by the power of the spring and presses to the pressure roller
[5].
releasing operation
Fixing motor (M3) reverses, pressure release lever 2 [2] pushes up the pressure plate [2] so that the fixing film unit [4] releases from the pressure roller [5].
Process speed Paper type User setting
Sub-Thermistor 1
Temperature (Reading at
Ambient Temperature
and Humidity / Low
Temperature and
Humidity)
Printing speed (ppm)
Normal speed plain paper
(64 to 105 g/m2) plain paper
220/225
30 to 4
thin paper
(less than 64 g/m2) plain paper L
210/215
special fixing mode 2 *3 LBP3380
special printing process
>plain paper
>mode 2
LBP2880
process option
>special fixing mode
>mode 2
235/240
half-speed plain paper
(64 to 105 g/m2) plain paper
190/200
15 to 2
thin paper
(less than 64 g/m2) plain paper L
180/190
rough paper *1 heavy paper 1 205/215
rough paper (strong) *2 heavy paper 2 220/225
special fixing mode 2 *3 LBP3380
special printing process
>plain paper
>mode 2
LBP2880
processing option
>special fixing mode
>mode 2
200/205
1/4 Speed OHT OHT 180/185 7 to 2