Deve unit.pdf

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CLP-310 Series TrainingFeb. 2008

CLP-310 Series TrainingFeb. 2008

CRU Technical Notes



ObjectivesObjectives

Understanding and building the ability to deal with

I. Component and layout of OPC-unit / dev-unit

II. Operations of each component and unit

III. Troubleshooting possible problems in the field and

solution to each problem



I. Consumable Part

For the best image quality, replace cartridges within appropriate time

Capacity !additional" #$%%% images !&$'$C" ( #$)%% !*" images

!initial w/ set" +%% images !&$'$C" ( #$%%% !*" images



Black TonerCartridge

,rontCover

CU'

Ⅱ. Composition & Function

igh voltage contact point!upply oller"

Cyan Toner Cartridge

igh voltage contact point!0eveloping oller"

Magenta TonerCartridge

Yellow Toner Cartridge

1e careful not to

damage dev. rollerwhile plug- in ( outof toner cartridge

. Toner Cartridge




pacer 0!2ap-ing"

0eveloping ollerus. 1lade

igh voltage contact point

!0eveloping oller"

igh voltage contact

point !upply oller"

0evelopment 'ethod 3on-magnetic one component type

Toner type non magnetic one component pulveri4ed toner

Capacity #$%%%!&$'$C" / #$)%%!*" heets

!3/3$ imple5$ IO/I6C #7+78 standard pages"

. Toner Cartridge




2ear 0

2ear I0962ear :gitator

2ear Paddle

2ear

2ear train Tor;ue transferred from 6T drive gear to 0 gear.

. Toner Cartridge




Developing roller

Toner Slider

Supply roller

Toner AgitatorShaft Paddle wire

Toner layer control toner layer thic<ness on dev. roller controlled by U.

blade=s trail-edge

Toner upply Type toner slider and supply roller

0ev. gap control gap ring located at both sides of dev. roller

. Toner Cartridge



. OPC Unit Layout

9ife Print over >)$%%% Images

OPC!Organic Photo-Conductor"

OPC Cleaning Cleaning 1lade !urethane"




OPC!Organic Photo-Conductor"

OPC 0rum

haft OPCandle OPC

Cleaning blade

Charger oller

lider ?aste OPC

haft Paddle OPC

Cleaning oller

6rager 9amp


. OPC Unit Layout



6rror 9ist

@ Invalid toner

A Invalid &ellow !'/C/*" toner <it

A 'ismatch of model name$ supplier I0$ company name and etc.

@ 3ot install

A Toner cartridge !&/'/C/*" is not installed

@ ervice call error

A ,user 9ow !Over" heat error

A 9U error

A Transfer belt errorA 0ev. ome error

A 'otor 9oc< error




#. eplace toner cartridge

and retest.

B. eplace OPC cartridge andretest.

>. eplace IT1 cartridge andretest.

. eplace OPC or IT1 andretest.

1. Vertical Black Line and Band

0escription #. traight thin blac< vertical lines occur on the printout

B. 0ar< blac< vertical bands occurs on the printout

Chec< and Cause olution

#. 0amaged development

roller$ deformed doctor-blade In case of one color

B. cratched / contaminatedsurface of the chargingroller in OPC set all colorslayered

>. 0amaged / contaminatedIT1 !Image Transfer 1elt" waste toner color

. 0amaged / deformedcleaning blade !OPC/IT1" waste toner color

Ⅳ. Printing Problems &Solution



2. Vertical White Line

0escription ?hite vertical lines in the image.

Chec< and Cause

#. Clean the 9U window with

recommended cleaner !IP:".

B. If foreign matter is inside9U$ replace 9U unit.

>. eplace toner cartridge.

. eplace IT1 unit.

). Chec< the fuser ribscorresponding to white spot.emove foreign matter orreplace parts.

olution

#. Contamination of the window

or internal lenses of 9U incase of all colors

B. ,oreign matter in tonercartridge one color

>. If the fuser is damaged$ whitespots occur periodically all

colors

. IT1 cleaning blade could touchwith IT1 wiping off a part ofimage all colors




. !ori"ontal #ark Band or White Band

0escription 0ar< or blurry hori4ontal stripes occur on the printout periodically

Chec< and Cause

#. Clean all high voltage

terminals in the cartridgeand the frame of theprinter.

B. ee the periodic table inthe left to identify whatsort of unit or componentcauses the problem.

eplace the relevant unit.

olution

#. 1ad contacts between the

imaging unit and highvoltage terminals.

B. The rollers in the tonercartridge may becontaminated.

#" Charge roller A >+.+ mm

B" upply roller A >B.8 mm>" 0evelop roller A BD mm" Transfer roller!T#" A >.8 mm)" Transfer roller!TB" A )).B mmD" OPC 0rum A #88.) mm+" ,usier A 88. mm


P i i P bl &S l i



$. Black % White &'ot

0escription #. 0ar< or blurry spots occur periodically in the printingB. ?hite spots occur periodically in the printing

Chec< and Cause

ee the periodic table in the left

to identify what sort of unit orcomponent causes the problem. eplace the relevant unit.

olution

,oreign matter stic<ing or

contamination on toner cartridge$OPC drum$ IT1 unit$ or fuser.

#" Charge roller A >+.+ mmB" upply roller A >B.8 mm>" 0evelop roller A BD mm" Transfer roller!T#" A >.8 mm)" Transfer roller!TB" A )).B mmD" OPC 0rum A #88.) mm

+" ,usier A 88. mm


P i ti P bl &S l ti



(. #ark )*age or Black

0escription The printed image is dar<

Chec< and Cause

Chec< electric contacts to the

EP

olution

#. 3o charging voltage in the

engine board.

B. egardless of printableimage$ composite blac<image is printed. Therecould be a problem incharging process

>. In the case$ it could causewrap Fam in the fuser


P i ti P bl &S l ti



+. Une,en #en-ity

0escription Print 0ensity is uneven between left and right

Chec< and Cause

#. Chec< if transfer roller and

connected parts are properlyinstalled

B. eplace IT1 unit

>. eplace toner cartridge

olution

#. The pressure on the transfer

roller by right and left springis not even springs aredamaged$ transfer roller isimproperly installed$ ortransfer roller=s bushing orholders are damaged.

B. Toner cartridge has been

e5pired.

>. Toner level is too low in thedevelopment cartridge.


P i ti P bl &S l ti



. /ho-t

0escription 2hosting occurs in the interval of BD mm or #88.)mm

Chec< and Cause

#. Chec< electric contacts to

EP. eplace EP board

B. eplace toner cartridge

>. eplace OPC unit

olution

#. 1ad contacts by contamination or

foreign matter in EP board

B. Toner cartridge is e5pired.

>. 1ad OPC


Ⅳ P i ti P bl &S l ti



0. &tain- on the 'rintout

0escription The printout are stained

Chec< and Cause

#. eplace toner cartridge

B. eplace OPC Unit or IT1Unit

olution

#. Toner lea<age due to improper

sealing in development unit.

B. Poor cleaning of OPC Unit orIT1 Unit





. &tain- on Back o Page

0escription The bac< of the page is stained periodically

Chec< and Cause

#. Chec< the period and

replace the part withproblem.

B. If there is a problem withdisengagement$ pleasechec< the operation of theclutch of driving TB oller$and replace it if it is

necessary.

olution

#. )).B mm Bnd Transfer

roller could becontaminated whenengaged or disengaged.

B. 88. mm ,user roll couldbe contaminated due tocold offset





13. Blank 'age Print out

0escription 1lan< page is printed

Chec< and Cause

#. Chec< OPC-ground

contact.

B. Chec< 9U Unit

>. Chec< EP 1oard

olution

#. 1ad electric contacts in

toner cartridge or OPC unit

B. 9U Unit error

>. 3o development highvoltage applied from EP


Ⅳ Printing Problems &Solution



3o oller Period 현상

# OPC 0rum #88.) mm ?hite /1lac< pot

B Charge oller >+.+ mm ?hite /1lac< pot

> upply oller >B.8 mm Periodical 1and

0eveloping oller BD.8 mm ?hite /1lac< pot$ Periodical 1and

D Transfer oller!TB" )).B mm Periodical 1and

+ 2ap-ring >B.8mm Periodical 1and

8 ,using 1elt >B.7 mm ?hite /1lac< pot

a4le. Periodic )*age- according to 5oller-


)Transfer oller!T#" >.8 mm Periodical 1and

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Deve unit.pdf