Duplex Feeding Unit; Overview - Canon iR4570 Series Service Manual

Chapter 8

8.7 Duplex Feeding Unit

8.7.1 Overview

iR2270 / iR2870
Inside the duplexing assembly are found two sets of rollers that are driven by the main motor (M2) and the duplexing
clutch (CL6).
Different sets of rollers are used to turn over the sheet for duplexing depending on whether or not the machine is
equipped with a delivery accessory*:
If a delivery accessory is present, the reversing rollers are used to turn over the sheet.
If no delivery accessory is present, the delivery rollers are used to turn over the sheet.
*3 Way Unit-A1
Configuration of Components If Without a Delivery Accessory
[1] Delivery roller
[2] Delivery sensor 1 (PS14)
[3] Reversing flapper
[4] Duplexing feeding roller 1
[5] Duplexing feed sensor (PS17)
8-40
[2]
[1]
F-8-36
0007-2218
[3]
[4]
[5]
[6]