Service manual

Chapter 6
6-6
F-6-10
6.7 Toner Container
6.7.1 Outline
0010-4281
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
The structure of the toner bottle is shown below.
The toner bottle is charged with 1-component, insulating, magnetic toner. The stirring rod in the toner bottle is rotated by the mina motor to supply toner into the
developing assembly through the toner supply port.
F-6-11
[1] Stirring rod
[2] Toner bottle lever
[3] Toner supply port
6.8 Transfer Unit
6.8.1 Outline of the Transfer Unit
6.8.1.1 Outline
0010-4287
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
The transfer unit consists of a transfer roller [1] and an static eliminator [2].
The transfer roller is driven by the photosensitive drum.
The static eliminator is biased to separate paper from the drum.
JP7/JP8
JP1/JP2
TNRCHKT
TNRCHKD
/DVACFOT
/DVDCPWM
/DVDCFOT
To developing
cylinder
From remaining
toner level sensor
Developing bias circuit
ASIC
CPU
Developing DC bias
voltage detection circuit
Developing AC bias
current detection circuit
Remaining toner level
detection circuit
DC generation circuit
AC generation circuit
Comparison
circuit
/DVACON
Superimposition
High-voltage power supply PCB
DC controller
PCB
[1]
[3]
[2]