DM3125 Service Manual

8/13/2019 DM3125 Service Manual

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Service Manual

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*.2.13Rem%5i#! t0e CIS U#it % t0e %tt%m se Assem/&y ...................... *-2*.2.14Rem%5i#! t0e U&t"s%#i$ Se#s%" % t0e %tt%m se Assem/&y .......... *-3:*.2.1+Rem%5i#! t0e CIS '#it % t0e U))e" se Assem/&y ........................ *-32*.2.1*Rem%5i#! t0e Mi# %"d % t0e U))e" se Assem/&y .................... *-34


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Service Manual

1-1

1. INTRODUCTION+eneral Notes or Servicin+eneral Descri/tion

T0e m#'& des$"i/es "es t% /e mi#ti#ed; t0e deti&ed i#st&&ti%#; t0e disssem/&y; #dt0e $%m)%#e#t "e)&$eme#t )"%$ed'"es s ,e&& s t0e mi# t"%'/&e s0%%ti#! !'ides.

P&ese t8e y%'" time t% "ed t0is m#'& t0%"%'!0&y t% %/ti# $%m)"e0e#si5e 8#%,&ed!e/%'t t0e s$##e" /e%"e se"5i#! t0e '#it.

1.1 +eneral notes or servicin719 e%"e t"yi#! t% disssem/&e t0e s$##e"; m8e s'"e t0e )%,e" s'))&y $%"d % t0e

s$##e" is dis$%##e$ted "%m t0e )%,e" %'t&et. U#de" #y $i"$'mst#$e; d% #%t"em%5e %" i#st&& t0e $%##e$t%"s %# t0e s$##e" ,it0 t0e )%,e" s'))&y t'"#ed ON.

729 Use $'ti%# #%t t% d"%) sm&& )"ts %" s$"e,s i#side t0e '#it ,0e# disssem/&i#! #d"essem/&i#!. I &et i#side; t0ey mi!0t $'se t0e m&'#$ti%# % t0e '#it.

739 D% #%t )'&& t0e $%##e$t%" $/&e ,0e# dis$%##e$ti#! it. %&d t0e $%##e$t%".

749


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Service Manual

3-1

3. R!C#UTIONS O"INST#$$#TION%TR#NSORT#TION

recautions o InstallationTrans/ortation

3.1 recautions o InstallationPy tte#ti%# t% t0e %&&%,i#! mtte"s /e%"e '#)$8i#! #d i#st&&ti%#.

D% #%t i#st&& i# )&$e ,0e"e 5i/"ti%# my %$$'".

=ee) t0e s$##e" %'t % di"e$t s'#&i!0t. D% #%t i#st&& #e" 0et s%'"$e.

D% #%t )&$e t0e s$##e" "%'#d mte"i&s ,0i$0 s0't % t0e $i"$'&ti%# % i".

D% #%t i#st&& i# 0'mid %" d'sty )&$e.

Use $"e #%t t% s$"t$0 t0e !&ss s'"$e % t0e s$##e" %" t0e d%$'me#t 0%&di#!)d ,it0 $&i) %" st)&e.

D% #%t 'se t0e ,&& s%$8et ,it0 $%##e$ti#! de5i$es ,0i$0 my !e#e"te #%ise; %"e@m)&e; i"-$%#diti%#e"; et$.

Use s'it/&e AC )%,e" s%'"$e.

P&$e t0e s$##e" %# &e5e& s'"$e.

3.2 Trans/ortationT% m%5e t0e s$##e" "%m ,0e"e it is i#st&&ed; %" "e)i" %" #y %t0e" "es%#; m8es'"e t% %/se"5e t0e %&&%,i#! $%#diti%#s(

719 T'"# % t0e )%,e" % t0e s$##e".

729 Rem%5e t0e )%,e" $/&e #d &%$8 t0e s$##e".

739 P't t0e s$##e" i# t0e )$8i#! $se ,it0 t0e )$8i#! mte"i&.


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Service Manual

4-1

&. T'!OR( O" O!R#TIONIntro0uctionMain Control Unit

&.1 Intro0uction

Fi!'"e 4.1 T0e%"y % %"mti%# % im!e.

T0e "e&e$ted "ys % y%'" %"i!i#& s s0%,# i# t0e /%5e Fi!'"e 4.1 )ss t0"%'!0 t0e &e#s#d $"ete # im!e %# t0e CIS. T0e#; $$%"di#! t% t0e die"e#t &i!0t i#te#sity )e"$ei5ed /yt0e CIS; t0e CIS ,i&& t"#se" t0ese dt i#t% se"ies % #&%! si!#&s t% t0e mi# /%"d;,0e"e t0e si!#&s "e t'"#ed i#t% di!it& si!#&s. T0ese di!it& si!#&s &%, t% t0e US 2.:C%#t"%&&e" t% t"#se" t% 0%st $%m)'te".

MainBoard 1111 000000001111 0000

Cold Cathode

LensCCD

AnalogueSignal

DigitalSignal

Fluorescent LampHost

ReflectedRays

MainBoard 1111 000000001111 0000

AnalogueSignal

DigitalSignal

USB 2.0Controller

HostCIS

Paper


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4-2

&.2 Main control unit&.2.1 Sste 0iara

Fi!'"e 4.2 P"%d'$t System &%$8 Di!"m


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Service Manual

4-3

&.2.2 Main controlUse &%!i$ $i"$'it t% $%#t"%& t0e CIS %" im!e $t$0. Im!e )"%$ess % t0e AFE #d ASIC7S+9.

Fi!'"e 4.3 Mi# C%#t"%& &%$8 Di!"m

L%!i$ $i"$'it

AFE ASIC( S5 )

HostComputer

CIS

Main Board


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4-4

&.2.3 *i0eo circuitT0e 5ide% $i"$'it % t0is )"%d'$t i#$&'des( 1. CIS d"i5i#! $i"$'it; 2. CIS si!#& )"%$essi#!$i"$'it.

1. CIS D"i5i#! Ci"$'it

S$##e" I#te"$e $%#t"%& t0e CIS i#te"#& LED % 'ti&ie LEDR #d LEDG #d LEDsi!#&s. T0"ee %'t)'ts % CIS %" im!e )"%$ess.

Fi!'"e 4.4 CIS D"i5i#! Ci"$'it

Scanner IF

LED_R

LED_G

LED_B

CISCISCISCISUPUPUPUP

CISCISCISCISDWNDWNDWNDWN

VCC

VCC

Out1_up

Out2_up

Out3_up

Out1_down

Out2_down

Out3_down


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Service Manual

4-5

2. CIS si!#& )"%$essi#!

Fi!'"e 4.+ CIS Si!#& P"%$ess%" Di!"m

T0e CIS %'t)'t i#t% t0e #&%! m'&ti)&e@e" se)"te&y. AFE 05e # i#te"#& 1* /it AC t% DC$%#5e"te" %" t"#smits #&%! m'&ti)&e@e" %'t)'t.

OS1 OS2 OS3

OS1 OS2 OS3

AFEAFEAFEAFE

HT82V26OS2

OS3

OS1

CISCISCISCISUPUPUPUP

CISCISCISCISDWNDWNDWNDWN Analog Mux

B

G

R


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4-6

&.2.& Sensor in/ut an0 out/ut#. a/er in%out Sensor

T0e ))e" )%siti%# is dete$ted /y P)e" i#%'t Se#s%". T0e )0%t% di%de t"#smits si!#&s t%

t0e )0%t% t"#sist%" #d t0e $i"$'it is s0%,# /e&%,.

Fi!'"e 4.* P)e" i#%'t se#s%"

T0e ))e" i#%'t se#s%" is dete$ted ,0e# t0e ))e" t%'$0 t"i!!e" t0t m8es )0%t% di%det"#smits si!#&s t% t0e )0%t% t"#sist%".


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Service Manual

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&.2.5 o:er su//l circuitT0is )%,e" system 'se /%%st #d /'$8 "e!'&t%" t"#sits 5%&t!e t% s'))&y system #eed.

Power Regulator

LM31724V Ultrasonic Sensor

17V

Power Regulator

LM317CIS LED

9V

Power Regulator

PS!43"

S!

Motor Dri#er$Sens%r

CIS sensor

&'E

!V

S!

1(DDR II

2(US)

3( 'las*

4()oot

Motor Dri#er$Sens%r

CIS sensor

&'E

3(3VPower RegulatorPS!43+,

S!

DDR II

1V

Power Regulator

PS!111,

S!

DDR II

1(+V

DC Power -ac.

Fi!'"e 4. P%,e" System


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4-8

&.2., o:er su//lI# t0is system; t0e"e is %#&y %#e ty)e % )%,e" s'))&y. P&ese see T/&e 4.1 %" deti&s.

T/&e 4.1 P%,e" Ad)te"

Ty)e

C0"$te"isti$


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Service Manual

5-1

5. RO)$!M SO$*IN+DianosticsTrou;les4ootin

T0is $0)te" s'))&ies t,% )t0s %" de&i#! ,it0 %)e"ti%#& )"%/&ems. T0e i"st "e&ies %# t0es$##e"Ks i#te"#& di!#%sti$s. T0e se$%#d 'ses t"%'/&es0%%ti#! &%,$0"ts #d t/&es t%is%&te t0e )"%/&em. I# m#y $ses; t0e i#te"#& di!#%sti$s ,i&& 0e&) y%' t% &%$te t0e

s%'"$e % t0e )"%/&em H'i$8&y. Use t0ese di!#%sti$s i"st. I t0e di!#%sti$s d% #%t &%$te t0es%'"$e % t0e )"%/&em; "ee" t% Se$ti%# +.2 Trou;les4ootin.

5.1 DI#+NOSTICST0e s$##e" 0s i#te"#& di!#%sti$s t% 0e&) y%' dete"mi#e t0e $'se % %)e"ti%#&)"%/&ems. S%me % t0e di!#%sti$s '#$ti%# ,it0 t0e s$##e" %#&i#e; ,0i&e %t0e"s "e )"t % se)"te %&i#e di!#%sti$s et'"e.

5.1.1 ON$IN! DI#+NOSTICSDete"mi#e %)e"ti%#& )"%/&ems /y %/se"5i#! t0e dis)&y )#e& #d $0e$8 t0e LED.


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5-2


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Service Manual

5-3

roce0ure #;noral 4enoenon !rror In0ication

719P't ))e" %# ADF))e" t"y.

729R'# A5isi%#C)t'"e T%%&B #d$&i$8 s$# /'tt%#%# T


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5-4

5.1.3 Dianostic lo:c4arts

Use t0e &%,$0"ts t0t %&&%, t% dete"mi#e t0e e@$t )"%/&em ,0e# eit0e" t0e %#&i#e %"%&i#e di!#%sti$s i#di$te !"%') e""%". Ree" t% C0)te" 4 %" )"ts "e)&$eme#t.

5.1.3.1 +rou/ 1 error lo:c4art a/er in or /a/er out sensor error7T0is &%,$0"t ))&ies ,0e# t0e LED /&i#8s t% i#di$te E""%" $%de 4. A#d t0e"e is ))e" i# t0eADF ))e" t"y.

G"%') 1 E""%"

O)e# $%5e" #d t0e#"em%5e t0e ))e"s"%m i#)'t ))e" t"y;t0e# $&%se t0e $%5e"

G"%') 1 E""%"E#d % test

7P)e" i# se#s%" e""%" %"

))e" %'t se#s%" e""%"9Re)&$e ))e" i# %" ))e"%'t se#s%"

E#d % testN%

N%

Yes

G"%') 1 E""%"

7P)e" %'t se#s%" e""%"9

Re)&$e ))e" %'t se#s%"

Yes


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Service Manual

5-5

5.1.3.2 +rou/ 2 error lo:c4art cover o/en sensor error7T0is &%,$0"t ))&ies ,0e# t0e LED /&i#8s t% i#di$te E""%" $%de *. A#d t0e"e is #% ))e" i#t0e ADF"%#t eed ))e" t"y.

G"%') 2 E""%"

O)e# $%5e"; t0e#$&%se t0e $%5e"

G"%') 2 E""%" E#d % test

7C%5e" %)e# se#s%" e""%"9Re)&$e C%5e" %)e# se#s%"

N%

es


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5-6

5.1.3.3 +rou/ 3 error lo:c4art CIS error7

T0is &%,$0"t ))&ies ,0e# t0e C0e$8 LED /&i#8s %" times t0e sme ,0i&e; ,it0 t0es$##e" %&i#e.

G"%') 3 E""%"

L ! t $ e$ e""%"

E ( Re)&$e /%tt%m CISE ( Re)&$e t%) CIS

CIS is %#

E ( Re)&$e /%tt%m CIS $/&eE ( Re)&$e t%) CIS $/&e

es

No

N%es

7Li!0t $0e$8 e""%"9E ( Re)&$e /%tt%m CISE ( Re)&$e t%) CIS

E#d % test

G"%') 3 E""%"

G"%') 3 E""%"

es

No

E#d % test


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Service Manual

5-7

5.1.3.& +rou/ & error lo:c4art Multi-"ee0 error7T0is &%,$0"t ))&ies ,0e# t0e LED /&i#8s t% i#di$te E""%" $%de + ,it0 m#'&. A#d t0e"e is))e" i# t0e ADF ))e" t"y.

G"%') 4 E""%"

Rem%5e m'&ti-eed))e"s i# s$##e".

E#d % test


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5-8

5.2 Trou;les4ootinRee" i"st t% t0e ))&i$/&e t"%'/&es0%%ti#! &%,$0"t i# t0e %&&%,i#! t0"ee se$ti%#s. T0e&%,$0"ts "ee" y%' t% t0e ))"%)"ite t/&e %" deti&ed t"%'/&es0%%ti#!.

5.2.1

"lo:c4arts

T0is se$ti%# )"%5ides t0e %&&%,i#! t"%'/&es0%%ti#! &%,$0"ts(

T"%'/&es0%%ti#! "%m )%,e" %# t% s$##e" "edy

O#&i#e t"%'/&es0%%ti#!


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Service Manual

5-9

5.2.1.1 Trou;les4ootin lo:c4art /o:er on to scanner rea0

T"%'/&es0%%ti#! F"%m P%,e" %#

P%,e"LED %#

N%

es

See T/&e +.3

F$e d%,# &i!0t $0e$8

F$e ') &i!0t $0e$8


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5-10

5.2.1.2 Trou;les4ootin lo:c4art

O#&i#e T"%'/&es0%%ti#!

N%

es

N%

es

N%

es

es

See T/&e +.6

See T/&e +.1:

See T/&e +.1:

See T/&e +.*

See T/&e +.

See T/&e +.

See T/&e +.11

F"eH'e#tP)e" m

F"eH'e#td%'/&e eed

L"!e s8e,5%&'me

M%t%"#%#-"%tti%#

M%t%"s'dde# st%)

N%

N%

es

es

N%

Im!e'#$&e"

St"#!es%'#d

!e#e"ted

N%

es

See T/&e +.4 #d T/&e +.+.

Redi#! is #%t)e"%"med %"Im!e d%es #%t))e".

es

N%


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Service Manual

5-11

5.2.2 Ta;les

T0e t/&es i# t0is se$ti%# )"%5ide deti&ed t"%'/&es0%%ti#! i#%"mti%#.

5.2.2.1 T4e o:er $!D 0oes not o on

Cause RelevantUnit

C4ec8 Met4o0 MaintenanceMet4o0

Rear8

U#)&'!!ed "%m%'t&et

N%#e Vis'& $0e$8 I#se"t t0e AC )&'!i#t% t0e %'t&et.

N%#e

AC )%,e"'#)&'!!ed t'#it

N%#e Vis'& $0e$8 I#se"t t0e AC$/&e i#t% '#it.

N%#e

P%,e" s,it$0 isOFF

N%#e Vis'& $0e$8 T'"# t0e )%,e"s,it$0 %#.

N%#e

AC 5%&t!ei&'"e

N%#e AC %'t&et 5%&t!e$0e$8

N%#e N%#e

P%,e" '#it ACi#)'t $%##e$t%"dis$%##e$ted

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

P%,e" s,it$0$%##e$t%"dis$%##e$ted

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

P%,e" '#it-mi#PCA $%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

P%,e" '#it%'t)'t 5%&t!ei&'"e

P%,e"'#it O't)'t 5%&t!e7J24V9 $0e$8

Re)&$e t0e )%,e"'#it N%#e

PCA Fi&'"e -mi#$%#t"%&PCA

-LED/%"d

Teste" $0e$87J24V; GND9

Rem%5e t0e $'se%" "e)&$e t0ePCA.

N%#e

UI /%"d-mi#PCA $%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%"

N%#e

Ta;le 5.3

>( C0e$8 met0%d e@)&i#s 0%, t% $0e$8 t0e i&ed item.T0e 5is'& $0e$8 $# /e mde /y )0ysi$&&y %/se"5i#! t0e )"t %" %/se"5i#! t0e%&i#e test dis)&y %# t0e "%#t )#e&. T0e teste" $0e$8 is mde /y $0e$8i#! t0e5%&t!e &e5e&s % t0e "e&e5#t '#its.


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5-12

5.2.2.2 Rea0in is not /erore0

Cause RelevantUnit

C4ec8Met4o0

MaintenanceMet4o0

Rear8

ADF $%5e"%)e#

ADF $%5e" Vis'& $0e$8 C&%se t0e ADF$%5e".

N%#e

Ta;le 5.&

5.2.2.3 Iae 0oes not a//ear

Cause RelevantUnit

C4ec8Met4o0

MaintenanceMet4o0

Rear8

ADF $%5e"%)e#

ADF $%5e" Vis'& $0e$8 C&%se t0e ADF$%5e"

N%#e

P%,e"s'))&y-mi#$%#t"%& /%"d$%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

P%,e" s'))&yi&s.

P%,e" s'))&y Teste" $0e$87J24V; GND9

Re)&$e t0e)%,e" s'))&y.

N%#e

CIS-mi#$%#t"%& /%"d$%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

CIS i&s. CIS Vis'& $0e$8 Re)&$e t0e%)ti$& '#it.

N%#e

Ta;le 5.5


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Service Manual

5-13

5.2.2.& Motor 0oes not rotateCause Relevant

UnitC4ec8 Met4o0 Maintenance

Met4o0Rear8

P%,e" s'))&y-

mi# $%#t"%&/%"d$%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e

$%##e$t%".

N%#e

P%,e" s'))&yi&s

P%,e"s'))&y

Teste" $0e$87J24V; GND9

Re)&$e t0e)%,e" s'))&y.

N%#e

M%t%"-mi#$%#t"%& PCA$%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

M%t%" i&'"e M%t%" Vis'& $0e$8 Re)&$e t0e

m%t%".

N%#e

Ta;le 5.,


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5-14

5.2.2.5 Motor su00en sto/sCause Relevant

UnitC4ec8Met4o0

MaintenanceMet4o0

Rear8

P%,e" s'))&y-mi# $%#t"%&/%"d$%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

P%,e" s'))&yi&s

P%,e" s'))&y Teste" $0e$87J24V; GND9

Re)&$e t0e)%,e" s'))&y.

N%#e

M%t%"- mi#$%#t"%& PCA$%##e$ti%#i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

M%t%" i&'"e M%t%" Vis'& $0e$8 Re)&$e t0e

m%t%".

N%#e

P)e" i#%'tse#s%" - mi#$%#t"%& PCA$/&e i&'"e

N%#e Vis'& $0e$8 C%##e$t t0e$%##e$t%".

N%#e

P)e" i#%'tse#s%" - mi#$%#t"%& PCA$/&e i&'"e

Se#s%"/%"d- mi#$%#t"%& PCA$/&e

Teste" %"5is'& $0e$8

Re)&$e t0eP)e" i#%'tse#s%" $/&e.

N%#e

P)e" i#%'tse#s%" i&'"e

Se#s%" /%"d Teste" $0e$8 Re)&$e t0ePCA.

N%#e

Ta;le 5.=


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Service Manual

5-15

5.2.2., Iae unclearCause Relevant Unit C4ec8 Met4o0 Maintenance

Met4o0Rear8

Di"t %#

$&i/"ti%#"ee"e#$e )&te

C&i/"ti%#

"ee"e#$e )&te

Vis'& $0e$8 C&e# t0e !&ss

,it0 is%)"%)y&&$%0%&.

N%#e

Di"t %#$&i/"ti%#"ee"e#$e )&te

C&i/"ti%#"ee"e#$e )&te

Vis'& $0e$8 C&e# t0e$&i/"ti%#"ee"e#$e )&te,it0 is%)"%)y&&$%0%&.

N%#e

Di"t %# t0e!&ss

G&ss Vis'& $0e$8 C&e# t0e !&ss,it0 is%)"%)y&&$%0%&.

N%#e

Ta;le 5.?

5.2.2.= "re@uent /a/er AaCause Relevant Unit C4ec8

Met4o0MaintenanceMet4o0

Rear8

P)e" setti#!i&'"e

O)e"ti%#e""%"

Is t0e ))e"$%""e$t&y set i#t0e ))e"$0'te

Te$0 'se"s0%, t%)"%)e"&y )&$et0e ))e".

N%#e

P)e" i&'"e %)e"ti%# e""%" Is t0es)e$iied ))e"

'sed

N%#e N%#e

Ta;le 5.B


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5-16

5.2.2.? "re@uent 0ou;le ee0 an0 s8e:

Cause Relevant Unit C4ec8Met4o0

MaintenanceMet4o0

Rear8

P)e" setti#!

i&'"e

O)e"ti%#

e""%"

Is t0e ))e"

$%""e$t&y set i#t0e ))e"$0'te

Te$0 'se"s t%

)"%)e"&y)%siti%# t0e))e"

N%#e

P)e" i&'"e O)e"ti%#e""%"

Is t0es)e$iied ))e"'sed

N%#e N%#e

Ta;le 5.1

5.2.2.B Strane soun0 enerate0

Cause Relevant Unit C4ec8Met4o0

MaintenanceMet4o0

Rear8

P)e" setti#!i&'"e

O)e"ti%#e""%"

Is t0e ))e"$%""e$t&y set i#t0e ))e"$0'te

Te$0 'se"s t%)"%)e"&y)%siti%# t0e))e".

N%#e

M%t%" i&'"e M%t%" Vis'& $0e$8 Re)&$e t0em%t%".

N%#e

P)e" i&'"e O)e"ti%#e""%"

Is t0es)e$iied ))e"'sed

N%#e N%#e

Ta;le 5.11


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,. DIS#SS!M)$(Service Tools

roce0ure or Disasse;l an0 Reasse;l

,.1 Service ToolT/&e *.1 des$"i/es t0e mi#te##$e t%%&s #e$ess"y %" t0e mi#te##$e % t0is eH'i)me#t.

No Nae Descri/tion

1 Mi#'s s$"e,d"i5e" Id&e" )'&&ey m%d'&e s$"e,

2 P0i&i)s s$"e,d"i5e"7m!#eti$9

N%mi#& N%.2 M3; M4

3 Oi& S0e&& Te""$e Oi& 4*B

4 G"ese S0e&& A&5#i G"ese N%.2B

+ A&$%0%& 7Is%)"%)y& 61 Q9 C&e#i#!

* Di!it& 5%&tmete"


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6-2

,.2 roce0ure or 0isasse;l an0 reasse;l,.2.1 Notes on 0isasse;l

719 C&e# t0e disssem/&y #d ssem/&y &%$ti%#.729 Dis$%##e$t t0e )%,e" $/&e #d "em%5e t0e AC )&'! "%m t0e %'t&et /e%"e

disssem/&y #d ssem/&y.

739 F%&&%, t0e disssem/&y #d ssem/&y )"%$ed'"es. Ne5e" &%%se# t0e s$"e,s %)"ts t0t m'st #%t /e disssem/&ed.

749 St%"e t0e disssem/&ed )"ts i# $&e# )&$e t% 5%id &%ss.

7+9 Ate" "e)&$eme#t; $0e$8 t0e $%#t$ts #d s)"e )"t m%'#ti#!.

7*9 Assem/&e t0e )"ts i# "e5e"se %"de" % disssem/&y )"%$ed'"e.


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,.2.2 Reovin t4e Out/ut Tra1. P"ess t0e &et 0i#!e % t0e %'t)'t t"y i#,"d&y t% det$0 t0e )i# % t0e %'t)'t t"y "%m

t0e s$##e".

2. Rem%5e t0e %'t)'t t"y.

i#!ePi#

O't)'t T"y


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6-4

,.2.3 Reovin t4e )utton C)#1. O)e# t0e s$##e" 0t$0 7'))e" /se ssem/&y9 s i&&'st"ted.

2. Rem%5e t0e )i# tt$0ed t% t0e /%tt%m /se ssem/&y.

Pi#

U))e"seAssem/&y

%tt%m seAssem/&y


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Ti)( T% "em%5e t0e )i# esi&y "%m t0e s$##e"; )&ese det$0 t0e )i# i# ))"%@imte&y 4+de!"ees s i&&'st"ted.

3. Rem%5e t0e i@i#! s$"e,s 72 )$s9 %# t0e '))e" /se ssem/&y.


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4. %&d t0e '))e" $%5e" ssem/&y #d )"ess t0e '))e" $%5e" t% det$0 t0e '))e" $%5e".

+. Rem%5e t0e &t $/&e %# t0e /'tt%# PCA.

U))e"C%5e"

F&t C/&e


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*. L%%se# 3 i@i#! s$"e,s %# t0e /'tt%# PCA.

. Rem%5e /'tt%# PCA "%m t0e '))e" $%5e".

Fi@i#!S$"e,s

'tt%# PCA


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6-8

,.2.& Reovin t4e #D" /a0Use y%'" i#!e"s t% )"ess t,% sides % t0e ADF )d %# t0e '))e" /se ssem/&y t% "em%5et0e )d "%m t0e 0%&de" s i& &'st"ted.

ADF Pd


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,.2.5 Reovin In/ut Tra an0 To/ Cover1. Det$0 t0e &et )i# % t0e i#)'t t"y "%m t0e 0%&e.

T0e &et )i#% t0e I#)'tT"y


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2. Det$0 t0e &et )i# % t0e ))e" !'ide "%m t0e 0%&e.

3. Re)et t0e sme ste)s t% det$0 t0e "i!0t )i#s % t0e i#)'t ))e" t"y #d ))e" !'ide.

T0e &et )i# %t0e ))e"!'ide

T0e "i!0t )i# %t0e I#)'t T"y

T0e "i!0t )i#% t0e ))e"!'ide


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4. Rem%5e t0e i#)'t t"y "%m t0e s$##e".

I#)'t T"y


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,.2., Reovin t4e Main Control )oar0 o t4e )otto )ase #sse;l

1. T'"# t0e s$##e" %5e" #d "em%5e 2 i@i#! s$"e,s %# t0e met& $%5e" % t0e /%tt%m0%'si#!.

2. I#se"t t0e t%) % &t s$"e, d"i5e" i#t% t0e s&%t t% &%%se# t0e met& $%5e" %# t0e /%tt%m0%'si#!.


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3. Rem%5e t0e PCA m%'#t % t0e /%tt%m 0%'si#!.

4. Rem%5e %'" i@i#! s$"e,s #d dis$%##e$t && &t $/&es "%m t0e $%##e$t%"s.

11. Rem%5e t0e mi# /%"d "%m t0e /%tt%m 0%'si#!.

PCAM%'#t

Mi# %"d

Fi@i#! S$"e,s

F&t C/&es


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6-14

,.2.= Reovin t4e Metal Case o t4e )otto )ase #sse;l1. Rem%5e t0e mi# $%#t"%& /%"d s des$"i/ed i# t0e )"e$edi#! se$ti%# *.2.*.

2. Rem%5e t,% &t $/&es %# t0e met& $se s i&&'st"ted.

F&t C/&es

Met& Cse


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Service Manual

6-15

,.2.? Reovin t4e )otto Cover1. Rem%5e mi# $%#t"%& /%"d % t0e /%tt%m 0%'si#! s des$"i/ed i# )"e$edi#! se$ti%#

*.2.*.

2. Rem%5e t0e met& $se s des$"i/ed i# t0e )"e$edi#! se$ti%# *.2..3. Rem%5e %'" i@i#! s$"e,s %# t0e /%tt%m 0%'si#! s i&&'st"ted.

4. Rem%5e t0e i@i#!s s$"e,s %# t,% sides.


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+. L%%se# #d det$0 t0e /%tt%m $%5e" "%m t0e ssem/&y.

*. Rem%5e t0e /%tt%m $%5e".

%tt%mC%5e"

%tt%mC%5e"


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,.2.B Reovin t4e #D" Roller ic8 Roller7 an0 its Cover

1. P'&& /%t0 t/s % t0e ADF "%&&e" $%5e" t% %)e# it.

3. Rise t0e t/ % t0e ADF "%&&e" ').

T/

T/ % t0eADF R%&&e"


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4. Rem%5e t0e ADF "%&&e".

+. Rem%5e t0e ADF "%&&e" !'ide 7!'ide ))e" &%,e"9 "%m t0e ssem/&y /y det$0i#! its)i#s "%m t0e s&%t s i#di$ted.

ADF R%&&e"G'ide 7G'ide;P)e" L%,e"9

%&e


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ADF R%&&e"G'ide

ADF R%&&e"


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,.2.11 Reovin t4e Motor

1. Rem%5e t0e e-"i#! %# t0e &"!est !e" %# t0e e@te"#& side.

2. Rem%5e t0e &"!est !e" s i#di$ted.

T0e L"!est Ge"


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3. Rem%5e i5e i@i#! s$"e,s.


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4. O# t0e i#te"#& side; "em%5e t0e i@i#! s$"e, %" t0e !"%'#d ,i"e.

+. Det$0 t0e $/&e t% "em%5e t0e m%t%".

Fi@i#!S$"e,


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M%t%"


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,.2.12 Reovin t4e "ee0in Roller

1. Rem%5e t0e e-"i#! % t0e eedi#! "%&&e" #d &%%se# t0e eedi#! "%&&e" ,it0 &t s$"e,

d"i5e" s i&&'st"ted.


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1. L%%se# t0e e-"i#!s %# t0e sm&&e" !e" s i&&'st"ted.

3. Rem%5e t0e sm&&e" !e".

Sm&&e"Ge"


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4. Rem%5e t0e e-"i#! % t0e %t0e" sm&&e" !e" #d "em%5e t0e !e".

+. Rem%5e t0e eedi#! "%&&e".


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6-28

,.2.13 Reovin t4e CIS Unit o t4e )otto )ase #sse;l

1. I#se"t t0e t%) % &t s$"e, d"i5e" i#t% t0e &et s&%t % t0e CIS '#it t% &%%se# t0e '#it"%m t0e /%tt%m /se ssem/&y.

T0e Let S&%t


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2. I#se"t t0e t%) % &t s$"e, d"i5e" i#t% t0e "i!0t s&%t % t0e CIS '#it s i&&'st"ted.Ge#t&y &%%se# t0e CIS '#it "%m t0e ssem/&y.

3. Ge#t&y &%%se# t0e st'ds %#e /y %#e ,it0 y%'" 0#ds "%m t0e "i!0t t% t0e &et %" "%m t0e&et t% t0e "i!0t.

CautionD% #%t )'s0 t%% 0"d ,0i&e &%%se#i#! t0e CIS '#it ,it0 t0e &t s$"e, d"i5e" i# $se t0e CIS'#it mi!0t /e dm!ed.

4. Rem%5e t0e CIS '#it "%m t0e /%tt%m /se ssem/&y.

CIS U#it

St'ds

Ri!0t


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6-30

,.2.1& Reovin t4e Ultrasonic Sensor o t4e )otto )ase #sse;l

1. L%$te t0e '&t"s%#i$ se#s%" %# t0e /%tt%m /se ssem/&y.

2. L%%se# t0e '&t"s%#i$ se#s%" "%m t0e ssem/&y ,it0 s$"e, d"i5e" s i#di$ted.

U&t"s%#i$Se#s%"


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3. Rem%5e t0e '&t"s%#i$ se#s%".

U&t"s%#i$Se#s%"


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,.2.15 Reovin t4e CIS unit o t4e U//er )ase #sse;l

1. Rem%5e %#e &t $/&e %# t0e mi# /%"d % t0e '))e" /se ssem/&y s i&&'st"ted.

2. T'"# %5e" t0e '))e" /se ssem/&y t% "em%5e t0e $&i/"ti%# s0eet %# t0e CIS '#it si&&'st"ted.

F&t C/&e

C&i/"tiS0eet


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3. Det$0 12 st'ds "%m t0e s&%ts %# t0e '))e" /se ssem/&y ,it0 P0i&i)s s$"e, d"i5e"

s i&&'st"ted.

4. Rem%5e t0e CIS '#it %# t0e '))e" /se ssem/&y.

St'ds @ 12

CIS U#it


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6-34

,.2.1, Reovin t4e Main )oar0 o t4e U//er )ase #sse;l

T'"# %5e" t0e '))e" /se ssem/&y t% "e5ie, t0e mi# /%"d s i&&'st"ted. Rem%5e t,%i@i#! s$"e,s; && $/&es 7se#s%" $/&es @ 2; #d &t $/&e @ 19 %# t0e /%"d.

Se#s%"C/&e 7A9

Se#s%"C/&e 79

Mi# %"d


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,.2.1= Reovin Sensors o t4e U//er )ase #sse;l

1. Rem%5e t,% se#s%" $/&e $%##e$t%"s.

2. Rem%5e t,% se#s%"s "%m t0e s&%ts % t0e '))e" /se ssem/&y "es)e$ti5e&y si#di$ted.

Se#s%"C/&e 7A9

Se#s%"C/&e 79


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U&t"s%#i$Se#s%"7T"#s$ei5e"9

P)e"-I#Se#s%"

Se#s%"

S&%t

DM3125 Service Manual

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