Construction Of The Control System; Overview; Temperature Control In Standby - Canon iR C3380 series Service Manual

Chapter 9

9.1.3 Construction of the Control System

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
DCON
9.2 Various Control Mechanisms
9.2.1 Controlling the Fixing Temperature

9.2.1.1 Overview

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
Temperature control of the fixing heater is done by using the main thermistor, which is in contact with the centre part of the heater, to detect temperature. Sub-
thermistors 1 and 2, which contact the ends of the film, are there to detect temperature rises at the ends of the fixing film, which happen when small size paper (A4R,
etc.) is being fed continuously.

9.2.1.2 Temperature control in standby

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The purpose of this function is to reduce the time required for the first print by pre-heating the fixing unit in standby, according to prescribed conditions.
9-2
PS28
DC driver PCB
TH2
TH3
M7
M3
M15
PS29
FM7
F-9-2
HTDRV1
J2110E-3 J214-6
HTDRV2
J2110E-4 J214-5
RDRV
J2110E-6 J214-3
VINJDG
J2110E-7 J214-2
ZX
J2110E-8 J214-1
TH1
TP1
F-9-3
FM6
AC driver PCB
3 2 1
J1001
0013-8516
0014-5556
0014-5557