Overview; Printing Process - Canon iR C3380 series Service Manual

Chapter 7

7.1.2 Overview

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The image formation system is the core of the machine, ultimately forming toner images on paper.
The machine's imaging system consists of a photosensitive drum, developing cylinder, 4 drum units containing carrier, 4 toner containers, ITB unit, fixing assembly,
and secondary transfer outside roller, all controlled by the DC controller.
When the print command arrives from the main controller, the DC controller controls the laser/scanner unit and HVT1/2 (high-voltage PCB) to form images on
paper according to the instructionsarriving in the form of a video signal.
[1] Laser scanner unit
[2] Drum unit
[3] ITB unit
[4] Toner container
[5] Fixing assembly
[6] Secondary transfer outside roller
[7] Video signal
[8] Print command

7.1.3 Printing Process

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The machine's printing process may broadly be divided into 6 blocks, which are made up of a total of 10 steps. The machine forms images on print paper by exe-
cuting the functions assigned to these blocks.
The following is a block diagram of the printing process, followed by an outline of the steps:
7-2
[4]
[3]
Y
[2]
M
[1]
HVT1
D-CON
[8]
M-CON
C
BK
HVT2
[7]
F-7-1
[5]
[6]
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