Canon IMAGERUNNER ADVANCE C5030, Service Manual, Page: 92 / 1455

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Technology■>■Image■Formation■System■>■Controls■>■Transfer/separation
Technology■>■Image■Formation■System■>■Controls■>■Transfer/separation
■ ● Drive■configuration
M13 M14
M15
Secondary transfer
outer roller
Patch sensor
(Front/Center/Rear)
(UN47 / UN48 / UN49)
Primary transfer
roller(Bk)
Primary transfer
roller(C)
Primary transfer
roller(M) Primary transfer
roller(Y)
Tension roller
Primary
transfer
auxiliary roller
ITB cleaning
blade
Waste toner
feeding screw
Drive roller
(steering roller)
ITB motor
ITB displacement control motor
ITB steering
position sensor(PS24)
Primary transfer disengagement motor
Primary transfer
detachment sensor 1(PS22)
Primary transfer
detachment sensor 2(PS23)
ITB displacement
sensor 1 to 4 (PS25 28)
Idol roller
ITB scraper
Parts■name Function
M13 ITB■motor To■rotate■the■ITB■and■the■waste■toner■screw
M14 ITB■displacement■
control■motor
To■move■the■drive■roller■(steering■roller)
M15 Primary■transfer■
disengagement■motor
To■make■the■tension■roller■and■the■primary■transfer■roller■(Y/M/C)■
engaged/disengaged
PS24 ITB■steering■position■
sensor
To■detect■position■of■the■drive■roller■(steering■roller)
PS22 Primary■transfer■
detachment■sensor■1
To■detect■whether■the■Tension■Roller■and■Primary■Transfer■
Roller■(Y/M/C)■are■pressurized■condition.
PS23 Primary■transfer■
detachment■sensor■2
To■detect■whether■the■Tension■Roller■and■the■Primary■Transfer■
Roller■(Y/M/C)■is■disengaged■condition.
PS25■to■28 ITB■displacement■
sensor
To■detect■position■of■the■ITB
UN47■to■48 Patch■Sensor■(front/
rear)
To■detect■color■displacement■level■(amount)
UN49 Patch■Sensor■(center) To■detect■patch■density■for■image■stabilization■control■(D-max,■
D-half,■etc.)■and■to■detect■the■color■displacement■amount
UN54 ITB■HP■sensor To■detect■home■position■of■the■ITB
F-2-83
T-2-36
■ ● Primary■transfer■disengagement■control
The■primary■transfer■roller■for■color■is■engaged■or■disengaged■to■keep■longer■life■of■the■image■
formation■parts■(photosensitive■drum,■ITB)
Execution■timing
•■ Roller■to■be■engaged:■when■making■color■prints■(If■2■and■more■sheets■of■Bk■continues■
within■a■job■at■Color■+■Bk■mix■printing,■disengage■the■Primary■Transfer■Roller■when■printing■
color)
•■ Roller■to■be■disengaged:■anytime■other■than■the■above■timing
Control■description
1)■Drive■of■the■primary■transfer■disengagement■motor■(M15)■rotates■the■cam.
2)■Rotation■of■the■cam■moves■the■support■arm■up/down,■which■separates■(disengages)■the■
color■primary■transfer■roller■from■the■ITB.
3)■Position■of■the■primary■transfer■roller■is■detected■by■the■Primary■transfer■detachment■sensor■
(PS22/23).
MEMO:
•■ At■standby,■the■color’s■primary■transfer■roller■is■disengaged.