Fans; Overview; Timing Of Increasing The Count; 2-Speed Control - Canon iR3570 Service Manual

- The 3-digit symbol in the Counter column indicates the setting in the following service does item:
1 through 6 under COUNTER>OPTION>USER>COUNTER.
- Counters 2 through 6 may be changed in the following service mode mode item:
COPIER>OPTION>USER.
*1 :F14-3213/ 3223/ 3218/ 3211/ 3228/ 3221/ 3318/ 3311/ 3328/ 3321/ 3319/ 3312/ 6718/ 6711/ 6728/ 6721/ 6719/ 6712
*2 :None in particular
*3 :F14-3338/ 3331/ 6738/ 6731/ 5438/ 5431
*4 :F14-3248/ 3241/ 3348/ 3341/ 6748/ 6741/ 5448/ 5441
*5 :F14-3298/ 3291/ 3398/ 3391/ 6798/ 6791/ 5498/ 5491
*6 :F14-3268/ 3261/ 3368/ 3361/ 6768/ 6761/ 5468/ 5461
** by default, not indicated; may be changed in service mode.
*** '1' is set for the following service mode item: COPIER>OPTION>USE>CNT-SW.
**** '1' is set for the following service mode item: COPIER>OPTION>USER>CNT-SW.

10.2.2 Timing of Increasing the Count

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
The timing at which the count is increased differs depending on the printing mode (single-sided or double-sided), target of delivery, and type of accessory:
1. Singe-Sided Printing, 2nd Side of a Double-Sided Print
In single-side printing or for the 2nd side of a double-sided print, the count is increased when the trailing edge of the sheet is discharged outside the machine in
relation to the output of the following sensors:
Finisher absent
Finisher present
2. 1st Side of a Double-Sided Print
When the double-sided print feed sensor (PS17) goes on, the machine will assume that printing on the 1st side has been completed, thereby increasing the count.

10.3 Fans

10.3.1 Overview

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
The names and the functions of the fans used in the machine are as follows:
Notation
FM1
FM2
FM2
F-10-3

10.3.2 2-Speed Control

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
The rotation of the 2 fans used in the machine is controlled to 2 different speeds by the voltage switchover circuit of the individual fans.
Condition Target of delivery
Tray 1
Tray 2
Tray 3
Name Filter
Heat discharge fan (rear) Present
Heat discharge fan (front) Present
FM1
T-10-2
Sensor
Delivery sensor (PS14)
No. 2 delivery sensor (PS1A)
No. 3 delivery sensor (PS5)
Delivery sensor of the finisher
T-10-3
2-speed control Description
Used Cools the fixing assembly.
Used Cools the fixing assembly.
Chapter 10
0006-5385
0006-5388
0006-5389
10-3