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fiSERVICE MANUAL
PN: RCSMA246
A246/A247/A248
fi
fi
RICOH GROUP COMPANIES
SE
RV
ICE
MA
NU
AL
A2
46
/A2
47
/A2
48
RICOH GROUP COMPANIES
fi
fi
fi
A246/A247/A248SERVICE MANUAL
PN:RCSMA246
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NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANYFASHION AND DISTRIBUTED WITHOUT THE PRIOR
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2000 RICOH Corporation. All rights reserved.
The Service Manual contains informationregarding service techniques, procedures,processes and spare parts of office equipmentdistributed by Ricoh Corporation. Users of thismanual should be either service trained orcertified by successfully completing a RicohTechnical Training Program.Untrained and uncertified users utilizinginformation contained in this service manual torepair or modify Ricoh equipment risk personalinjury, damage to property. or loss of warrantyprotection.
Ricoh Corporation
WARNING
LEGENDPRODUCT CODE COMPANY
GESTETNER RICOH SAVINA246 2851 FT7950 2050A247 2860 FT7960 2060A248 2870 FT7970 2070
DOCUMENTATION HISTORYREV. NO. DATE COMMENTS
* 12/98 Original Printing
A24
6/A2
47/A
248
and
A17
5/A
176/
A177
Prod
uct C
ompa
rison
Cha
rt
SM1
A246
/A24
7/A2
48
1.
THE
FOLL
OW
ING
TA
BLE
SHO
WS
THE
MAJ
OR
DIF
FER
ENCE
S BE
TWEE
N TH
E A2
46/A
247/
A248
AN
D A1
75/A
176/
A177
SERI
ES C
OPI
ERS.
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
Dup
lex
copy
co
ntro
l has
bee
n re
vised.
Th
edu
plex
co
py pr
odu
ctivi
ty ha
s be
en in
crease
din
the
simpl
ex to
du
plex
m
ode
. Be
fore
th
ela
st sh
eet o
f copy
pa
per
is s
tack
ed in
the
dupl
ex tra
y, th
e next
job
will
start
from
the
botto
m st
ack
ed
shee
t in
simpl
ex to
du
plex
mode
.
Afte
r th
e la
st s
heet
of
co
py pa
per
is st
ack
edin
the
dupl
ex tra
y, th
e next
job
will
start.
1
Dup
lex
copy
produ
ctivi
ty
A246
G50
7.W
MF
Ref
er to
SM
, pg
. 2-
113
for
deta
iled
info
rmatio
n.
2Ta
nde
m LC
TTh
e ta
nde
m LC
T (ca
paci
ty:
1,55
0 x
2) is
the
1st t
ray
for
easi
er pa
per
repl
enish
ment.
The
tande
m tra
y (ca
pacit
y: 50
0 x
2) is
the
1st
tray
for
(A17
6/A1
77/A
191/
A192
cop
iers
).Re
fer
to SM
, pg
. 2-
85/8
9fo
r de
taile
d in
form
atio
n.
Last
sh
eet
Last
sh
eet
Firs
t dup
lex
shee
t
Last
sh
eet
Firs
t dup
lex
shee
t
SM2
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
3
Toner
re-cy
cling
syst
emTh
e to
ner
fro
m th
e dr
um
cle
anin
g unit
and
transf
er
belt
unit
is co
llect
ed
and
the
filter
ing
equ
ipm
ent
m
ech
anism
se
para
tes
the
re-
usa
ble
toner
and
unusa
ble
mate
rial (b
lock
ed
toner
and
pape
r du
st). T
he r
e-usa
ble
toner
isre
turn
ed
to th
e to
ner
tank
and
the
unusa
ble
mate
rial i
s co
llect
ed
in th
e use
d to
ner
colle
ctio
n bo
ttle.
Ab
out 3
% of
to
ner
isco
llect
ed
in th
e use
d to
ner
co
llect
ion
bottl
e.
The
est
imate
d pe
riod
befo
re th
e to
ner
colle
ctio
n bo
ttle
is fu
ll ha
s be
en ext
ende
dfro
m 24
0 k
to 1,
500
k co
pies
.
Around
10%
of
to
ner
is c
olle
cted
to th
e use
dto
ner
colle
ctio
n bo
ttle w
ithou
t tra
nsf
err
ing
the
toner
to th
e co
py pa
per.
Refe
r to
SM
, pg
. 2-
31/3
5fo
r de
taile
d in
form
atio
n.
To im
prove
the
transf
er
belt
funct
ion,
acle
anin
g bi
as ro
ller a
nd
a b
ias
rolle
r bla
deha
ve b
een
adde
d to
th
e tra
nsf
er
belt
unit.
Even if
th
e to
ner
is no
t rem
ove
d co
mpl
etely
by th
e tra
nsf
er
belt
clean
ing
blad
e du
e to
th
epa
per d
ust s
tuck
on
the
transf
er be
lt cle
anin
gbl
ade,
th
e to
ner
is
attr
act
ed
to th
e neg
ativ
ech
arge
d cle
anin
g bi
as ro
ller.
The
bias
rolle
rbl
ade
scra
pes
off t
he to
ner
on
the
clea
ning
bias
rolle
r.4
Tran
sfer
be
ltcle
anin
g bi
asro
ller
A246
G50
0.W
MF
Refe
r to
SM
, pg
. 2-
65/6
7fo
r de
taile
d in
form
atio
n.
The
A229
(dig
ital c
opi
er)
does
not
hav
e a
transf
er
belt
clean
ing
blad
e.R
easo
n:If
the
toner
on th
e tra
nsf
erbe
lt w
ere
sc
rape
d by
a
clean
ing
blad
e, s
ome of
the
norm
ally
nega
tively
char
ged
toner
could
be
char
ged
posit
ively
byfri
ctio
n.
The
posit
ively
char
ged
toner
then
co
uld
not
be
rem
ove
d by
th
e cl
eani
ngbi
as ro
ller.
Clea
ning
Bi
as R
olle
r
Bias
Rol
ler B
lade
Tran
sfer
Be
lt Cl
eani
ng Bl
ade
SM3
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
5
Opt
ics/S
canner
retu
rn sp
eed
(70CP
M m
ach
ine)
To re
duce
th
e m
ach
ine
vibra
tion
while
the
scanner
is re
turn
ing
to th
e ho
me
posit
ion
for
70 c
pm m
ach
ines
, the
app
ropr
iate
retu
rnsp
eed
for
each
repr
odu
ctio
n r
atio
is a
dapt
ed
so th
at th
e vib
ratio
n of
th
e m
ach
ine
isre
duce
d (to
th
e 60
cpm
m
achi
ne le
vel).
Refe
r to
SM
, pg
. 2-
37 fo
rde
taile
d in
form
atio
n.
6O
pera
tion
pane
lFo
r easie
r ope
ratio
n, th
e LC
D on
the
ope
ratio
n pa
nel h
as
been
enla
rged
to 64
0 x
240
dots
. Fo
r eas
ier k
ey
ope
ratio
n,
the
layo
ut
of th
e ke
ys ha
s be
en ch
ange
d.
The
size of
th
e LC
D on
th
e ope
ratio
n p
anel
is
320
x 24
0 do
ts.
Refe
r to
th
e O
pera
ting
Inst
ruct
ions
.
7
Ope
ratio
nIm
prove
ments
re
sultin
g fro
m exp
erie
nce
with
A175
/A17
6/A1
77 m
ach
ines
have
be
enin
corp
orate
d to
fa
cilita
te m
ach
ine
oper
atio
n.
1) Th
e ke
y to
p fo
r th
e UP
mode
ha
s be
enadd
ed fo
r easi
er acc
ess
in th
e UP
m
ode
.
2) Ad
ditio
nal o
rigin
als
can
be s
et o
n th
e AD
Fta
ble
durin
g co
pyin
g and
the
copy
ope
ratio
n is
contin
ued
(tota
lly 10
0orig
inal
s).3)
A sa
mpl
e co
py ke
y is
adde
d to
th
eope
ratio
n pa
nel.
4) Th
e ra
nge
of
th
e ID
le
vel h
as b
een
wid
ened
from
7
to 9.
The
num
ber
ofpr
ogra
ms
has
been
in
crease
d fro
m 5
to10
. The
di
gits
of t
he u
ser
code
has
be
enin
crease
d fro
m 6
to 8.
5) Th
e units
(in
ch o
r m
m) c
an b
e ch
ange
d by
SP m
ode
.
The
ope
rato
rs ha
ve to
in
put 2
act
ions
of th
eke
y ope
ratio
n to
ent
er
the
UP m
ode
(Cle
arm
ode
key
and
Clea
r/Sto
p ke
y).Ad
ditio
nal o
rigin
al c
an be
set
on
ADF
tabl
edu
ring
copy
ing
but t
he c
opy
ope
ratio
n is
not
contin
ued
Refe
r to
th
e O
pera
ting
Inst
ruct
ions
8
Proce
ss c
ontro
lauto
sta
rt m
ode
The
proce
ss co
ntro
l auto
st
art m
ode
ca
n b
ese
lect
ed
in S
P m
ode
(D
efa
ult:
sele
cted).
To
main
tain
opt
imum
co
py qu
alit
y, pr
ocess
contro
l occ
urs
eve
ry 24
hou
rs eve
n if
th
em
ain
swi
tch
is n
ot tu
rned
off.
The
proce
ss c
ont
rol o
nly
starts
w
hen
the
fusi
ng
tem
pera
ture
is
low
. If
the
main
sw
itch
of th
e co
pier
is
not
tu
rned
off d
urin
g 24
ho
urs,
the
fusi
ng te
mpe
ratu
re d
oes
not
go
do
wn to
100
C. Pr
oce
ss co
ntro
l can
not
be c
arr
ied
out.
Refe
r to
SM
, pg
. 4-
8 and
SP 1
-12-
1 fo
r de
taile
din
form
atio
n.
SM4
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
9D
rive
for
the
regi
stra
tion ro
ller
An in
depe
nden
t ste
ppin
g m
oto
r dr
ives
the
regi
stra
tion r
olle
r to
ensu
re go
od
copy
qual
ity.
Whe
n th
e re
gist
ratio
n c
lutc
h tu
rns
on,
th
em
ain
m
otor
ro
tatio
n m
ay
som
etim
es
besh
ocke
d. J
itter
m
ay
app
ear a
t 80
mm
fro
mth
e le
adin
g ed
ge on s
mall f
ine d
otte
d im
ages.
Refe
r to
SM
, pg
. 2-
99 fo
rde
taile
d in
form
atio
n.
10
Dup
lex
To ensu
re go
od
stack
ing
in th
e du
plex
unit,
the
follo
win
g m
odi
ficatio
n h
as be
en app
lied.
1) Th
e du
plex
po
sitio
ning
ro
ller r
otatio
nsp
eed
has
incr
ease
d 1.
6 tim
es fr
om th
eA1
77 s
o th
at th
e po
sitio
ning
ro
ller d
elive
rsth
e pa
per
to th
e du
plex
se
para
tion
sect
ion
whi
le th
e pa
per g
uid
e is
down
.2)
The
posit
ioni
ng ro
ller o
n ti
min
g ca
n be
chan
ged
by SP
mode
(1-
9-1).
It ta
kes
longe
r to
de
liver
seve
rely
cu
rled
pape
r such
as
recy
cled
pap
er or
pape
r whi
chw
as
fed
as
far
as
the
dupl
ex se
para
tion
sect
ion
in th
e du
plex
unit.
In
la
tter
case
, the
pape
r guid
e is
alre
ady
up
for
next
sh
eet o
fpa
per.
The
pape
r gu
ide
cannot g
uid
e th
epa
per.
To so
lve th
e pr
obl
em, a
prog
ram
in
SP m
ode
has
bee
n add
ed.
Refe
r to
SM
, pg
. 4-
16 fo
rde
taile
d in
form
atio
n.
11
Exte
rior/F
ront
door
sO
pera
tors
ca
n ope
n an
d cl
ose
eith
er th
eco
pier
or
the
sorte
r st
apl
er do
or fir
st be
cause
the
copi
er do
or sw
ing
to th
e rig
ht.
For e
xit jam
re
mova
l, it
is ne
cess
ary
to ope
nth
e so
rter
stapl
er do
or fir
st a
nd th
en th
eco
pier
fro
nt d
oor.
Also
, it i
s ne
cess
ary
to
close
the
copi
er fro
nt d
oor f
irst a
nd th
en th
eso
rter
stapl
er do
or.
12
Dev
elo
per
New
de
velo
per i
s us
ed to
st
abi
lize th
etri
boel
ectri
c ch
arge
afte
r a
long
cop
y ru
n(30
0 k).
Th
e ne
w de
velo
per m
ain
tain
s th
etri
boel
ectri
c ch
arge
abilit
y ove
r a lo
ng ti
me.
This
redu
ces
the
poss
ibilit
y of l
ow im
age
dens
ity or
dirty
ba
ckgr
ound.
The
PM cy
cle fo
r re
plac
ing
deve
lope
r is
eve
ry12
0 k.
Dev
elo
per,
Type
9ED
P Co
de: 8
8779
7
Toner
, Ty
pe 6
105
EDP
Code
: 887
801
To pr
eve
nt t
he dr
um
te
mpe
ratu
re fro
min
creasi
ng in
the
cont
inuo
us d
uple
x m
ode
,
the
drum
ha
s 12
ho
les
in e
ach
dru
m fla
nge.
The
new
ty
pe d
rum
ca
n be
inst
alle
d in
the
A175
/A17
6/A1
77 m
ach
ines
.
13
Dru
m
A246
G50
3.W
MF
See
illust
ratio
n.
Ref
er to
SM, pg
. 2-
21 fo
r de
taile
din
form
atio
n.
A175
/A17
6/A1
77A2
46/A
247/
A248
SM5
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
The
key
counte
r ho
lder
is
inst
alle
d at
th
eco
pier
rig
ht fro
nt po
sitio
n fo
r easie
r ope
ratio
n.
The
key
counte
r ho
lder
is
inst
alle
d at
th
eco
pier
rig
ht re
ar
posit
ion.
14
Key
counte
r
A246
G50
4.W
MF
See
illust
ratio
n.
Refe
r to
SM
, pg
. 3-
16/1
7fo
r de
taile
d in
form
atio
n.
15
Verti
cal t
ransp
ort
guid
eTh
e upp
er and
lowe
r tra
nsp
ort g
uid
es ha
vebe
en c
ombi
ned
into
one
part
for
easi
erope
ratio
n of
jam
re
mova
l. Th
e ope
n an
gle
ofth
e up
per
guid
e is
the
sam
e as
that
of
th
elo
wer
guid
e.
Whe
n re
movin
g m
isfed
pape
r in
the v
erti
cal
transp
ort s
ect
ion,
it
is n
ecess
ary
to
ope
n th
eupp
er and
lowe
r ve
rtica
l tra
nsp
ort g
uid
es.
The
ope
n an
gle o
f the
upp
er ve
rtica
ltra
nsp
ort g
uid
e is
narr
ow
er
than
that
of t
helo
wer
verti
cal t
ransp
ort g
uid
es.
Refe
r to
SM
, pg
. 2-
91 fo
rde
taile
d in
form
atio
n.
16
Char
act
er
Thin
Line
Adju
stm
ent
(Gener
atio
n C
opy
Mode
)
Verti
cal t
hin
line
may
be th
icker
than
orig
inal
afte
r ge
ner
atio
n c
opy
. Ve
rtica
l thi
n lin
es c
an
be m
ade
th
inne
r by
lowe
ring
the
toner
dens
ity in
the
deve
lopm
ent u
nit.
V P da
ta ca
nbe
com
pens
ate
d by
SP
mode
(S
P1-13
-4). L
:Th
icker,
N
: Nor
mal,
H: T
hinn
er, H
H: M
uch
Thin
ner
V ID
B =
V P
+
300(V
)
Refe
r to
SM
, pg
. 4-
18 fo
rde
taile
d in
form
atio
n.
Key
Coun
ter
Hol
der
SM6
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
The
press
ure le
vers
se
curin
g m
etho
d ha
sbe
en c
hang
ed.
The
leve
rs ar
e h
ooke
d by
th
esh
aft a
nd h
oles
, and
2 re
tain
ing
rings
hav
ebe
en e
limin
ated.
Thu
s, it
is not
nece
ssary
to
rem
ove
th
e co
nnect
or
brac
ket w
hen
repl
acin
g th
e pr
ess
ure ro
ller a
nd
its be
arin
gsw
ithou
t rem
ovin
g th
e ho
t rolle
r.
Whe
n re
plac
ing
the
press
ure
rolle
r and
itsbe
arin
gs w
ithou
t rem
ovin
g th
e ho
t rolle
r, it
isnece
ssary
to
re
move
th
e pr
ess
ure
le
vers
,
reta
inin
g rin
gs, and
connect
or
brack
et.
17
Fusi
ng/P
ress
ure
rolle
r
A246
G50
1.W
MF
See
illust
ratio
n.
18Fu
sing
Hig
h du
rabi
lity ru
bber
is
use
d fo
r th
epr
ess
ure
ro
ller (
450
k).Th
e PM
cy
cle fo
r re
plac
ing
the
press
ure ro
ller
is e
very
24
0 k.
Refe
r to
SM
, pg
. 5-
2 fo
rde
taile
d in
form
atio
n.
19En
ergy
st
ar
com
plia
ntTh
e Eu
rope
an ve
rsio
n m
ach
ine
meet
s th
eEn
ergy
St
ar gu
idel
ines
for
energ
y ef
ficie
ncy
as
well
as U
S ve
rsio
n m
ach
ines
.
The
Ener
gy St
ar
com
plia
nt, U
S ve
rsio
n on
ly.R
efer
to
SM
, pg
. 2-
115
for
deta
iled
info
rmatio
n.
20
Exte
rior
cove
rsTh
e le
ft and
right
cov
ers
ca
n be
rem
ove
din
depe
nden
tly. Th
e num
bers
of
sc
rew
sre
quire
d fo
r re
movin
g fo
llow
ing
cove
rs ha
vebe
en re
duce
d.O
pera
tion
pane
l (-4),
Up
per c
ove
r (-4
), Rig
htupp
er co
ver
(-4), L
ower
left
& rig
ht c
over
(-2),
Lowe
r re
ar
cove
r (-4
)
To re
move
th
e rig
ht or
the
left
cove
r, it
isnece
ssary
to
re
move
th
e oth
er pa
rts (fr
ont
cove
r, re
ar co
ver,
and
inne
r cove
r).Re
fer
to SM
, pa
ges
6 1
to6-
9 fo
r de
tails
.
Ret
ain
ing
Rin
g
Leve
r
Ret
ain
ing
Rin
g
SM7
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
The
bias
term
inal
(dev
elo
pment r
olle
r sha
ft)do
es n
ot ro
tate
bu
t the
out
side
of t
hede
velo
pment r
olle
r sha
ft ro
tate
s. It
is n
otnece
ssary
to
lu
bric
ate
the
deve
lopm
ent b
ias
term
inal
.
The
bias
term
inal
in th
e de
velo
pment r
olle
rro
tate
s in
the
bias
rece
ptacle
. The
bi
aste
rmin
al m
ust
be
lu
brica
ted.
21
Dev
elo
pment/B
ias
term
inal
lubr
icatio
n
A246
G50
2.W
MF
See
illust
ratio
n.
22
Dup
lex/
Sepa
ratio
nbe
ltTh
e num
ber
of se
para
tion
belts
ha
s be
enre
duce
d fro
m 3
to 1
.
Thre
e s
epa
ratio
n b
elts
are
use
d fo
r du
plex
sepa
ratio
n.Th
e tw
o ty
pes
of be
lt ar
enot i
nter
chan
geabl
e. T
hetw
o ty
pes
of du
plex
unit
are
also
not
in
terc
hang
e-abl
e be
caus
e of
th
edi
ffere
nt c
onne
ctor
s.
A175
/A17
6/A1
77
A246
/A24
7/A2
48
SM8
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
As th
e dr
um
gr
oundi
ng te
rmin
al, a
co
ndu
ctive
brush
and
a c
ondu
ctive
be
arin
g ar
e u
sed.
Itis
not
nec
ess
ary
to
re
plac
e th
ese
parts
at
regu
lar
PM.
The
drum
gr
oundi
ng p
late
co
nta
cts
the
drum
shaf
t rot
ate
d. R
epla
cem
ent a
nd lu
brica
tion
eve
ry 1.
2 M
are
nece
ssary
.
23
Dru
m gr
oundi
ngte
rmin
al
A246
G50
5.W
MF
A246
G50
6.W
MF
See
illust
ratio
n.
A175
/A17
6/A1
77D
rum
G
roundi
ng P
late
A246
/A24
7/A2
48
Brush
Bear
ing
Brush
SM9
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
24
Sorte
r st
apl
er/G
ripTh
ere ar
e 2
m
otors
in
the
grip
ass
embl
y. O
ne
is u
sed
for
ope
ning
and
clo
sing
the
grip
arm
s,in
stead
of so
leno
ids.
The
oth
er (G
rip m
otor)
is us
ed fo
r m
ovin
g th
e gr
ip a
rms.
Th
is re
duce
the
oper
atio
n n
ois
e in
sta
ple
mode
.
Ther
e a
re 2
so
leno
ids
in th
e gr
ip a
ssem
bly.
One is
use
d fo
r ope
ning
and
closin
g th
e gr
iparm
s. Th
e oth
er is
use
d fo
r m
ovin
g th
e gr
iparm
s. Th
e gr
ip m
otor
is us
ed fo
r m
ovin
g th
egr
ip arm
s.
Refe
r to
SM
, pg
. 9-
19/2
1fo
r de
taile
d in
form
atio
n.
25
User
prog
ram
/Thr
ee
stapl
e po
sitio
n
In add
ition to
th
e 4
stapl
e po
sitio
ns (to
p,bo
ttom
, sla
nt, 2
st
apl
e), th
e ope
rato
r ca
nse
lect
eith
er th
e 2
or
3 st
apl
e po
sitio
n b
y use
rpr
ogra
m. W
hen
the
3 st
apl
e po
sitio
n is
sele
cted,
the
indi
catio
n o
n th
e ope
ratio
npa
nel w
ill be
cha
nged
from
2-
stapl
e to
3-
stapl
e.
The
ope
rato
r ca
n s
ele
cts
4 st
apl
e po
sitio
ns(to
p, bo
ttom
, sla
nt, 2
st
apl
e).Re
fer
to SM
, pg
. 4-
52 fo
rde
taile
d in
form
atio
n.
26
Sorte
rst
apl
er/P
unch
wast
e co
llect
ion
box
The
capa
city
of th
e pu
nch
wast
e c
olle
ctio
nbo
x ha
s be
en in
creas
ed.
20 k
sh
eets
(2
hole
s/sh
eet)/1
3 k
shee
ts (3
hole
s/sh
eet)
The
capa
city
of th
e pu
nch
colle
ctio
n bo
x is
as
follo
ws:
7 k
shee
ts (2
hole
s/sh
eet) 5
k s
heet
s (3
hole
s/sh
eet)
Refe
r to
SM
, pg
. 9-
25 fo
rde
taile
d in
form
atio
n.
27
Sorte
rst
apl
er/O
rigin
altra
y
For e
asie
r ope
ratio
n of
th
e ne
xt jo
b or
in th
epl
aten m
ode
, th
e orig
inal
tray
is ad
ded
to th
eto
p of
th
e pr
oof
tra
y in
the
sorte
r st
apl
er.
28So
rter
stapl
er/P
roof
exit
rolle
r
To ensu
re go
od
copy
qu
alit
y in
pro
of m
ode
,
the
proof
exit
ro
ller (
drivi
ng
side)
cont
act
s th
ere
ar
side
(non-
imag
e si
de) to
de
liver
the
copy
pape
r.
In th
e pr
oof
m
ode
th
e pr
oof
exit
ro
ller (
drivi
ng
side
) cont
act
s th
e fr
ont
si
de (im
age
side
) tode
liver
the
copy
pa
per.
Refe
r to
SM
, pg
. 9-
8 fo
rde
taile
d in
form
atio
n.
29
Sorte
rst
apl
er/lim
itles
sso
rt fu
nct
ion:
softw
are
Whe
n m
akin
g m
ore
th
an 2
0 se
ts of
co
pies
,ope
rato
rs ju
st in
put t
he num
ber o
f sets
and
press
the
star
t key.
Th
e ope
rato
r m
ust
then
rem
ove
eve
ry 20
set
s of
co
pies
sta
cked
inth
e 20
bi
ns. T
hen
rese
t the
orig
inal
s, a
ndpr
ess
the
star
t key
again
. The
ope
rato
r ca
nha
ve m
ore
th
an 20
set
s of
co
pies
.
Whe
n m
akin
g m
ore
th
an 2
0 se
ts of
co
pies
,ope
rato
rs h
ave to
di
vide
the
job. T
heope
rato
r als
o ha
s to
in
put t
he s
ettin
gs af
ter
each
20
sets
of
co
pies
is fi
nis
hed.
See
Ope
ratin
gIn
stru
ictio
ns
SM10
A246
/A24
7/A2
48
No.
Sect
ion
/Item
A246
/A24
7/A2
48A1
75/A
176/
A177
Rem
arks
30
Opt
ics/
APS
senso
rTh
e AP
S se
nsor
em
its 2
beam
s (ul
tra re
dlig
ht LE
D) to
sc
an
the
orig
inal
size
. To
dist
ingu
ish
betw
een
LT and
LG pa
per
size
s,anoth
er A
PS s
enso
r (us
ual r
efle
ctive
ty
pe) is
inst
alle
d in
the
US ve
rsio
n.
Ther
e a
re th
ree
refle
ctive
ty
pe s
enso
rs to
dete
ct th
e orig
inal
size
in
pla
ten m
ode
.
Refe
r to
SM
, pg
. 2-
48/4
9fo
r de
taile
d in
form
atio
n.
31
By-pa
ss tr
ay/
Thick
pape
r mode
Whe
n th
e by
-pa
ss pa
per f
eed
key
is pr
ess
ed
twic
e, th
e co
pier
ent
ers
th
e th
ick
pape
r m
ode
.In
th
is m
ode
the
by-pa
ss fe
ed
clut
ch tu
rns
on
twice
, the
fusin
g te
mpe
ratu
re is
co
ntro
lled
ina h
ighe
r th
an n
orm
al m
ode
, the
contin
uous
copy
sp
eed
is re
duce
d, a
nd h
ighe
r tra
nsf
er
curr
ent i
s app
lied
to th
e tra
nsf
er be
lt.
Refe
r to
SM
, pg
. 2-
95 fo
rde
taile
d in
form
atio
n.
SM i A246/A247/A248
TABLE OF CONTENTS
OVERALL INFORMATION
1. OVERALL MACHINE INFORMATION ........................................ 1-11.1 SPECIFICATION ...................................................................................... 1-11.2 MACHINE CONFIGURATION .................................................................. 1-6
1.2.1 COPIER OVERVIEW....................................................................... 1-61.2.2 SYSTEM OVERVIEW...................................................................... 1-6
1.3 COPY PROCESS AROUND THE DRUM................................................. 1-81.4 MECHANICAL COMPONENT LAYOUT................................................. 1-101.5 DRIVE LAYOUT ..................................................................................... 1-121.6 PAPER PATH......................................................................................... 1-13
1.6.1 STANDARD COPYING.................................................................. 1-131.6.2 MULTIPLE 2-SIDE COPYING ....................................................... 1-14
1.7 ELECTRICAL COMPONENT DESCRIPTION........................................ 1-15
DETAILED DESCRIPTIONS
2. DETAILED SECTION DESCRIPTIONS....................................... 2-12.1 PROCESS CONTROL.............................................................................. 2-1
2.1.1 OVERVIEW ..................................................................................... 2-12.1.2 PROCESS CONTROL DATA INITIAL SETTING............................. 2-42.1.3 LATENT IMAGE CONTROL ............................................................ 2-52.1.4 IMAGE DENSITY CONTROL ........................................................ 2-12
2.2 DRUM UNIT............................................................................................ 2-182.2.1 OVERVIEW ................................................................................... 2-182.2.2 OPC DRUM CHARACTERISTICS................................................. 2-192.2.3 DRUM CHARGE............................................................................ 2-202.2.4 ERASE........................................................................................... 2-232.2.5 CLEANING..................................................................................... 2-252.2.6 QUENCHING................................................................................. 2-30
2.3 DRUM CLEANING AND TONER-RECYCLING...................................... 2-312.3.1 TONER TRANSPORT ................................................................... 2-312.3.2 FILTERING .................................................................................... 2-322.3.3 PUMP MECHANISM...................................................................... 2-332.3.4 DRIVE MECHANISM ..................................................................... 2-342.3.5 TONER COLLECTION BOTTLE.................................................... 2-35
2.4 OPTICS .................................................................................................. 2-362.4.1 OVERVIEW ................................................................................... 2-362.4.2 SCANNER DRIVE ......................................................................... 2-372.4.3 VERTICAL LENS DRIVE ............................................................... 2-382.4.4 HORIZONTAL LENS DRIVE.......................................................... 2-392.4.5 HORIZONTAL LENS POSITIONING ............................................. 2-402.4.6 3RD SCANNER DRIVE ................................................................. 2-42
A246/A247/A248 ii SM
2.4.7 OPTICS CONTROL CIRCUIT........................................................ 2-432.4.8 AUTOMATIC IMAGE DENSITY CONTROL SYSTEM (ADS)........ 2-442.4.9 MANUAL IMAGE DENSITY CONTROL ........................................ 2-462.4.10 UNEVEN LIGHT INTENSITY CORRECTION.............................. 2-472.4.11 ORIGINAL SIZE DETECTION IN PLATEN MODE...................... 2-482.4.12 HALF TONE MODE ..................................................................... 2-50
2.5 DEVELOPMENT..................................................................................... 2-512.5.1 OVERVIEW ................................................................................... 2-512.1.2 DEVELOPMENT MECHANISM..................................................... 2-522.1.3 DRIVE MECHANISM ..................................................................... 2-532.1.4 CROSSMIXING ............................................................................. 2-542.1.5 DEVELOPMENT BIAS................................................................... 2-552.1.6 TONER SUPPLY ........................................................................... 2-60
2.6 IMAGE TRANSFER................................................................................ 2-642.6.1 PRE-TRANSFER LAMP ................................................................ 2-642.6.2 IMAGE TRANSFER AND PAPER SEPARATION OVERVIEW ..... 2-652.6.3 IMAGE TRANSFER AND PAPER SEPARATION MECHANISM... 2-662.6.4 TRANSFER BELT UNIT LIFT MECHANISM ................................. 2-682.6.5 PAPER TRANSPORTATION AND BELT DRIVE MECHANISM.... 2-692.6.6 TRANSFER BELT CLEANING MECHANISM................................ 2-702.6.7 TONER COLLECTION MECHANISM............................................ 2-712.6.8 TRANSFER ANTI-CONDENSATION HEATER............................. 2-72
2.7 PAPER FEED......................................................................................... 2-732.7.1 OVERVIEW ................................................................................... 2-732.7.2 FRR FEED SYSTEM ..................................................................... 2-742.7.3 SLIP CLUTCH MECHANISM......................................................... 2-762.7.4 FRR FEED DRIVE MECHANISM .................................................. 2-772.7.5 SEPARATION ROLLER RELEASE MECHANISM ........................ 2-792.7.6 PAPER RETURN MECHANISM.................................................... 2-802.7.7 PAPER SKEW PREVENTION MECHANISM ................................ 2-812.7.8 PAPER LIFT MECHANISM............................................................ 2-822.7.9 PAPER NEAR END/PAPER END DETECTION............................ 2-852.7.10 TANDEM FEED TRAY................................................................. 2-862.7.11 PAPER SIZE DETECTION .......................................................... 2-902.7.12 VERTICAL TRANSPORT MECHANISM ..................................... 2-912.7.13 TRAY POSITIONING MECHANISM ............................................ 2-922.7.14 BY-PASS FEED TABLE .............................................................. 2-952.7.15 PAPER REGISTRATION............................................................. 2-982.7.16 REGISTRATION DRIVE MECHANISM ....................................... 2-992.7.17 GUIDE PLATE RELEASE MECHANISM................................... 2-100
2.8 IMAGE FUSING.................................................................................... 2-1012.8.1 OVERVIEW ................................................................................. 2-1012.8.2 FUSING ENTRANCE GUIDE ...................................................... 2-1022.8.3 FUSING DRIVE MECHANISM..................................................... 2-1032.8.4 FUSING LAMP CONTROL .......................................................... 2-1042.8.5 INVERTER AND PAPER EXIT .................................................... 2-1052.8.6 INVERTER AND EXIT DRIVE MECHANISM............................... 2-106
2.9 DUPLEX ............................................................................................... 2-1072.9.1 OVERVIEW ................................................................................. 2-107
SM iii A246/A247/A248
2.9.2 DRIVE MECHANISM ................................................................... 2-1082.9.3 DUPLEX ENTRANCE TO DUPLEX TRAY .................................. 2-1092.9.4 DUPLEX STACKING ................................................................... 2-1102.9.5 DUPLEX PICK-UP ROLLER MECHANISM................................. 2-1112.9.6 DUPLEX PAPER FEED............................................................... 2-112
2.10 ENERGY STAR COMPLIANT MACHINES(ALL THE DESTIMATIONS)............................................................... 2-115
2.11 ENERGY SAVING INFORMATION .................................................... 2-1172.11.1 ABOUT THE ENERGY SAVING FEATURES OF
THIS COPIER............................................................................ 2-117
INSTALLATION
3. INSTALLATION PROCEDURE ................................................... 3-13.1 INSTALLATION REQUIREMENTS .......................................................... 3-1
3.1.1 ENVIRONMENT .............................................................................. 3-13.1.2 MACHINE LEVEL ............................................................................ 3-13.1.3 MINIMUM SPACE REQUIREMENTS.............................................. 3-23.1.4 POWER REQUIREMENTS.............................................................. 3-2
3.2 COPIER (A246/A247/A248)...................................................................... 3-33.2.1 ACCESSORY CHECK..................................................................... 3-33.2.2 INSTALLATION PROCEDURE........................................................ 3-43.2.3 GUIDANCE ROM INSTALLATION
(OPTION: EUROPE VERSION ONLY)......................................... 3-143.2.4 PLATEN COVER (OPTION) INSTALLATION................................ 3-153.2.5 KEY COUNTER HOLDER INSTALLATION (OPTION).................. 3-163.2.6 ORIGINAL TRAY INSTALLATION (OPTION)................................ 3-18
3.3 UNIVERSAL TRAY (TRAY 2) ................................................................. 3-193.4 550 SHEETS PAPER TRAY (TRAY 3) ................................................... 3-203.5 TANDEM FEED TRAY PAPER SIZE CHANGE (TRAY 1) ..................... 3-223.6 DUAL JOB FEEDER (A610) ................................................................... 3-25
3.6.1 ACCESSORY CHECK................................................................... 3-253.6.2 INSTALLATION PROCEDURE...................................................... 3-26
3.7 SORTER STAPLER (A821).................................................................... 3-293.7.1 ACCESSORY CHECK................................................................... 3-293.7.2 INSTALLATION PROCEDURE...................................................... 3-303.7.3 SORTER ADAPTER INSTALLATION (OPTION)........................... 3-34
3.8 20 BIN SORTER STAPLER (A658) (A246 ONLY) ................................. 3-363.8.1 ACCESSORY CHECK................................................................... 3-363.8.2 INSTALLATION PROCEDURE...................................................... 3-37
3.9 LCT (A822) ............................................................................................. 3-413.9.1 ACCESSORY CHECK................................................................... 3-413.9.2 INSTALLATION PROCEDURE...................................................... 3-423.9.3 PAPER SIZE CHANGE ................................................................. 3-46
3.10 TRANSPORTATION REMARKS .......................................................... 3-493.10.1 TONER RECYCLING TUBE CLEANING..................................... 3-493.10.2 OTHER OPERATIONS................................................................ 3-49
A246/A247/A248 iv SM
SERVICE TABLES
4. SERVICE TABLES...................................................................... 4-14.1 GENERAL CAUTIONS ............................................................................. 4-1
4.1.1 DRUM .............................................................................................. 4-14.1.2 DRUM UNIT..................................................................................... 4-14.1.3 CHARGE CORONA......................................................................... 4-24.1.4 OPTICS ........................................................................................... 4-24.1.5 ERASE LAMP.................................................................................. 4-34.1.6 DEVELOPMENT UNIT .................................................................... 4-34.1.7 TRANSFER BELT UNIT .................................................................. 4-34.1.8 CLEANING SECTION...................................................................... 4-44.1.9 PRE-TRANSFER LAMP .................................................................. 4-44.1.10 PAPER FEED ................................................................................ 4-44.1.11 FUSING UNIT ................................................................................ 4-44.1.12 USED TONER ............................................................................... 4-5
4.2 SERVICE PROGRAM MODE................................................................... 4-64.2.1 SERVICE PROGRAM MODE OPERATION.................................... 4-64.2.2 SERVICE PROGRAM MODE TABLES ........................................... 4-84.2.3 INPUT CHECK............................................................................... 4-454.2.4 OUTPUT CHECK........................................................................... 4-48
4.3 USER PROGRAM .................................................................................. 4-514.3.1 HOW TO ENTER AND EXIT UP MODE........................................ 4-514.3.2 UP MODE TABLE.......................................................................... 4-51
4.4 TEST POINTS/DIP SWITCHES/LEDS ................................................... 4-534.4.1 DIP SWITCHES............................................................................. 4-534.4.2 TEST POINTS ............................................................................... 4-534.4.3 FUSES........................................................................................... 4-544.4.4 LEDS ............................................................................................. 4-54
4.5 SPECIAL TOOLS AND LUBRICANTS ................................................... 4-544.5.1 SPECIAL TOOLS........................................................................... 4-544.5.2 LUBRICANTS ................................................................................ 4-54
4.6 TOUCH PANEL DISPLAY POSITION ADJUSTMENT ........................... 4-55
PREVENTIVE MAINTENANCE
5. PREVENTIVE MAINTENANCE SCHEDULE............................... 5-15.1 PM TABLE................................................................................................ 5-15.2 PM PROCEDURE .................................................................................... 5-5
5.2.1 CLEARING PM COUNTER.............................................................. 5-55.2.2 PM PROCEDURE............................................................................ 5-6
REPLACEMENT AND ADJUSTMENT
6. REPLACEMENT AND ADJUSTMENT........................................ 6-16.1 EXTERIOR AND INNER COVER REMOVAL........................................... 6-1
6.1.1 FRONT COVER............................................................................... 6-1
SM v A246/A247/A248
6.1.2 REAR SIDE...................................................................................... 6-26.1.3 INNER COVER................................................................................ 6-36.1.4 RIGHT SIDE .................................................................................... 6-66.1.5 LEFT SIDE....................................................................................... 6-76.1.6 OPERATION PANEL ....................................................................... 6-86.1.7 UPPER COVER............................................................................... 6-9
6.2 PAPER FEED......................................................................................... 6-106.2.1 PAPER TRAY UNIT REMOVAL .................................................... 6-106.2.2 PAPER TRAY REMOVAL.............................................................. 6-136.2.3 PAPER FEED ROLLERS REPLACEMENT................................... 6-166.2.4 PAPER FEED TIMING ADJUSTMENT.......................................... 6-176.2.5 PAPER FEED CLUTCH REMOVAL
(1ST TRAY PAPER FEED CLUTCH)........................................... 6-206.2.6 REAR FENCE RETURN SENSOR REPLACEMENT .................... 6-246.2.7 REAR FENCE HP SENSOR REPLACEMENT.............................. 6-256.2.8 BOTTOM PAPER SENSOR REPLACEMENT............................... 6-266.2.9 BY-PASS FEED TABLE REMOVAL .............................................. 6-276.2.10 BY-PASS FEED ROLLERS REPLACEMENT ............................. 6-286.2.11 BY-PASS PAPER SIZE SENSOR REPLACEMENT ................... 6-296.2.12 BY-PASS FEED CLUTCH AND GUIDE PLATE SOLENOID
REMOVAL ................................................................................... 6-316.2.13 REGISTRATION MOTOR REMOVAL ......................................... 6-336.2.14 PAPER DUST CLEANER CLEANING......................................... 6-346.2.15 REGISTRATION SENSOR CLEANING....................................... 6-356.2.16 UNIVERSAL TRAY SIZE SWITCH REPLACEMENT .................. 6-366.2.17 550-SHEET TRAY SET SWITCH REPLACEMENT .................... 6-376.2.18 LIFT MOTOR REMOVAL............................................................. 6-386.2.19 PAPER FEED MOTOR REMOVAL ............................................. 6-396.2.20 COPIER FEED UNIT REMOVAL................................................. 6-406.2.21 BOTTOM PLATE LIFT WIRE REPLACEMENT........................... 6-426.2.22 550 SHEETS PAPER TRAY (TRAY 3) ........................................ 6-446.2.23 TANDEM FEED TRAY PAPER SIZE CHANGE .......................... 6-46
6.3 OPTICS .................................................................................................. 6-496.3.1 EXPOSURE GLASS REMOVAL.................................................... 6-496.3.2 EXPOSURE LAMP REPLACEMENT ............................................ 6-506.3.3 OPTICS THERMOSWITCH REPLACEMENT ............................... 6-526.3.4 SCANNER HP SENSOR REPLACEMENT ................................... 6-536.3.5 ADS SENSOR REMOVAL............................................................. 6-546.3.6 SCANNER DRIVE MOTOR ........................................................... 6-556.3.7 SCANNER DRIVE WIRES REPLACEMENT................................. 6-566.3.8 THIRD SCANNER REMOVAL....................................................... 6-726.3.9 THIRD SCANNER DRIVE MOTOR/HP SENSOR
REPLACEMENT............................................................................ 6-736.3.10 LENS HORIZONTAL DRIVE HP SENSOR REPLACEMENT...... 6-756.3.11 LENS HORIZONTAL DRIVE MOTOR REPLACEMENT ............. 6-776.3.12 APS SENSOR ADJUSTMENT (SENSITIVITY DOWN) ............... 6-796.3.13 ARS SENSOR ADJUSTMENT .................................................... 6-80
6.4 TONER RECYCLING ............................................................................. 6-816.4.1 TONER RECYCLING UNIT REMOVAL......................................... 6-81
A246/A247/A248 vi SM
6.4.2 TONER RECYCLING CLUTCH REPLACEMENT ......................... 6-826.5 DEVELOPMENT AND TONER SUPPLY................................................ 6-83
6.5.1 DEVELOPMENT UNIT REMOVAL................................................ 6-836.5.2 DEVELOPER REPLACEMENT ..................................................... 6-856.5.3 DEVELOPMENT ROLLERS REPLACEMENT .............................. 6-876.5.4 TONER DENSITY SENSOR REPLACEMENT.............................. 6-896.5.5 TONER BOTTLE DRIVE MOTOR REPLACEMENT ..................... 6-906.5.6 DEVELOPMENT FILTER AND PRESSURE RELEASE FILTER
REPLACEMENT............................................................................ 6-916.5.7 DEVELOPMENT ROLLER SHAFT CLEANING............................. 6-92
6.6 DRUM UNIT............................................................................................ 6-936.6.1 DRUM UNIT REMOVAL AND OPC DRUM REPLACEMENT........ 6-936.6.2 QUENCHING LAMP REPLACEMENT .......................................... 6-946.6.3 GRID PLATE/CHARGE WIRE/WIRE CLEANER
REPLACEMENT............................................................................ 6-956.6.4 ERASE LAMP AND DRUM POTENTIAL SENSOR
REPLACEMENT............................................................................ 6-976.6.5 CLEANING BLADE REPLACEMENT ............................................ 6-986.6.6 CLEANING BRUSH REPLACEMENT ........................................... 6-996.6.7 PICK-OFF PAWL REPLACEMENT ............................................. 6-1006.6.8 OZONE FILTER REPLACEMENT............................................... 6-1016.6.9 PRE-TRANSFER LAMP REMOVAL............................................ 6-102
6.7 TRANSFER BELT UNIT ....................................................................... 6-1036.7.1 TRANSFER BELT UNIT REMOVAL/INSTALLATION ................. 6-1036.7.2 TRANSFER BELT REPLACEMENT............................................ 6-1056.7.3 CLEANING BLADE REPLACEMENT .......................................... 6-107
6.8 FUSING UNIT....................................................................................... 6-1086.8.1 FUSING UNIT REMOVAL ........................................................... 6-1086.8.2 FUSING THERMISTOR REPLACEMENT................................... 6-1096.8.3 FUSING THERMOFUSE REPLACEMENT ................................. 6-1106.8.4 FUSING LAMP REPLACEMENT................................................. 6-1116.8.5 OIL SUPPLY/CLEANING ROLLER REPLACEMENT.................. 6-1136.8.6 OIL SUPPLY CLEANING BRUSH REPLACEMENT ................... 6-1146.8.7 HOT ROLLER REPLACEMENT .................................................. 6-1156.8.8 PRESSURE ROLLER AND BEARING REPLACEMENT ............ 6-1176.8.9 FUSING STRIPPER PAWL REPLACEMENT.............................. 6-1196.8.10 FUSING PRESSURE ADJUSTMENT........................................ 6-1206.8.11 PAPER EXIT UNIT REMOVAL.................................................. 6-1216.8.12 EXIT SENSOR AND FUSING EXIT SENSOR
REPLACEMENT........................................................................ 6-1236.8.13 DUPLEX PAPER GUIDE SENSOR AND DUPLEX
TRANSPORT SENSOR REPLACEMENT................................. 6-1246.8.14 PRESSURE ROLLER CLEANING ROLLER
REPLACEMENT........................................................................ 6-1256.9 DUPLEX UNIT ...................................................................................... 6-126
6.9.1 FEED ROLLER REPLACEMENT ................................................ 6-1266.9.2 SEPARATION BELT REPLACEMENT ........................................ 6-1286.9.3 DUPLEX UNIT REMOVAL........................................................... 6-131
SM vii A246/A247/A248
6.9.4 SEPARATION CLUTCH/TRANSPORT CLUTCH REMOVAL ......6-1326.9.5 JOGGER MOTOR REPLACEMENT ............................................6-133
6.10 COPY QUALITY ADJUSTMENT.........................................................6-1386.10.1 SP ADJUSTMENT MODE ..........................................................6-1386.10.2 SIDE-TO-SIDE REGISTRATION ADJUSTMENT.......................6-1406.10.3 UNEVEN EXPOSURE ADJUSTMENT.......................................6-1416.10.4 IMAGE DENSITY ADJUSTMENT...............................................6-1436.10.5 SCANNER HEIGHT ADJUSTMENT...........................................6-1446.10.6 APS SIZE CALIBRATION...........................................................6-1456.10.7 FUSING EXIT COVER MAGNET POSITIONING
ADJUSTMENT ...........................................................................6-146
TROUBLESHOOTING
7. TROUBLESHOOTING ................................................................ 7-17.1 SERVICE CALL CONDITIONS .................................................................7-1
7.1.1 SUMMARY .......................................................................................7-17.1.2 EXPOSURE......................................................................................7-37.1.3 SCANNER........................................................................................7-57.1.4 LENS MAGNIFICATION...................................................................7-87.1.5 OPTICS THERMISTOR..................................................................7-107.1.6 CHARGE CORONA UNIT ..............................................................7-107.1.7 DEVELOPMENT ............................................................................7-117.1.8 PROCESS CONTROL SENSORS .................................................7-127.1.9 TRANSFER CURRENT..................................................................7-157.1.10 DRUM...........................................................................................7-157.1.11 PAPER FEED...............................................................................7-167.1.12 DUPLEX .......................................................................................7-197.1.13 FUSING ........................................................................................7-207.1.14 SYSTEM CONTROL ....................................................................7-227.1.15 DUAL JOB FEEDER.....................................................................7-237.1.16 SORTER STAPLER .....................................................................7-247.1.17 OTHERS.......................................................................................7-28
7.2 ELECTRICAL COMPONENT DEFECTS ................................................7-307.2.1 SENSORS ......................................................................................7-307.2.2 SWITCHES.....................................................................................7-347.2.3 FUSES............................................................................................7-35
7.3 FIRMWARE HISTORY ............................................................................7-36
DUAL JOB FEEDER A610
1. OVERALL MACHINE INFORMATION........................................ 8-11.1 SPECIFICATIONS.....................................................................................8-11.2 COMPONENT LAYOUT............................................................................8-2
1.2.1 MECHANICAL COMPONENT LAYOUT...........................................8-21.2.2 ELECTRICAL COMPONENT LAYOUT............................................8-3
1.3 ELECTRICAL COMPONENT DESCRIPTION...........................................8-4
Rev. 10/2000
A246/A247/A248 viii SM
2. DETAILED DESCRIPTION.......................................................... 8-62.1 ORIGINAL PICK-UP MECHANISM .......................................................... 8-62.2 SEPARATION AND FEED MECHANISM................................................. 8-72.3 FRICTION BELT DRIVE MECHANISM .................................................... 8-82.4 ORIGINAL SIZE DETECTION.................................................................. 8-92.5 TRANSPORT MECHANISM................................................................... 8-11
2.5.1 BASIC OPERATION...................................................................... 8-112.5.2 THIN/THICK ORIGINAL MODES................................................... 8-13
2.6 ORIGINAL FEED-OUT MECHANISM..................................................... 8-142.7 TRANSPORT BELT LEVELING MECHANISM ...................................... 8-152.8 LIFT MECHANISM ................................................................................. 8-162.9 SPECIAL FEATURES............................................................................. 8-17
2.9.1 PRESET MODE............................................................................. 8-172.9.2 TWO-SIDED ORIGINAL FEED (AUTO REVERSE) MODE........... 8-182.9.3 COMBINE TWO ORIGINALS MODE............................................. 8-19
2.10 TIMING CHARTS WITH ORIGINAL MISFEED DETECTION............... 8-222.10.1 A4 SIDEWAYS: ONE-SIDED, TWO ORIGINALS........................ 8-222.10.2 COMBINE TWO ORIGINALS MODE........................................... 8-232.10.3 A4 SIDEWAYS: TWO-SIDED, TWO ORIGINALS ....................... 8-24
3. SP MODE .................................................................................. 8-253.1 SERVICE TABLES ................................................................................. 8-25
3.1.1 DIP SWITCHES AND SWITCH ..................................................... 8-253.1.2 VARIABLE RESISTORS................................................................ 8-263.1.3 LEDS ............................................................................................. 8-263.1.4 FUSE ............................................................................................. 8-26
4. REPLACEMENTS AND ADJUSTMENTS ................................. 8-274.1 UPPER COVER REMOVAL ................................................................... 8-274.2 TRANSPORT BELT REPLACEMENT.................................................... 8-284.3 FEED ROLLER REPLACEMENT ........................................................... 8-304.4 FRICTION BELT REPLACEMENT ......................................................... 8-314.5 SENSORS REPLACEMENT .................................................................. 8-32
4.5.1 ORIGINAL SET/FEED, REGISTRATION-1/-2, ANDORIGINAL WIDTH-1/-2/-3 SENSOR REPLACEMENT.................. 8-32
4.6 FEED-OUT UNIT REMOVAL.................................................................. 8-334.7 FEED-OUT MOTOR REPLACEMENT ................................................... 8-344.8 INVERTER SOLENOID REMOVAL AND ADJUSTMENT ...................... 8-354.9 FEED-OUT SENSOR REPLACEMENT.................................................. 8-364.10 INVERTER ROLLER REPLACEMENT................................................ 8-374.11 DF POSITION/APS START SENSOR REPLACEMENT ...................... 8-384.12 BELT DRIVE MOTOR REPLACEMENT............................................... 8-394.13 FEED-IN UNIT REMOVAL.................................................................... 8-404.14 FEED-IN MOTOR REPLACEMENT ..................................................... 8-414.15 FRICTION BELT MOTOR REPLACEMENT......................................... 8-424.16 FEED-IN CLUTCH REPLACEMENT .................................................... 8-43
SM ix A246/A247/A248
4.17 STOPPER SOLENOID REPLACEMENT ............................................. 8-444.18 VERTICAL REGISTRATION ADJUSTMENT ....................................... 8-45
4.18.1 ONE-SIDED THIN ORIGINAL MODE.......................................... 8-454.18.2 TWO-SIDED ORIGINAL MODE................................................... 8-47
4.19 SIDE-TO-SIDE REGISTRATION ADJUSTMENT................................. 8-494.20 ADJUSTIN PLATE REMOVAL ............................................................. 8-50
4.20.1 PREVENTING THE REAR SIDE OF ORIGINALS FROMPBECOMING DIRTY ................................................................... 8-50
SORTER STAPLER A821
1. OVERALL MAHCINE INFORMATION ........................................ 9-11.1 SPECIFICATIONS.................................................................................... 9-11.2 COMPONENT LAYOUT ........................................................................... 9-4
1.2.1 MECHANICAL COMPONENT LAYOUT.......................................... 9-41.2.2 DRIVE LAYOUT............................................................................... 9-5
1.3 ELECTRICAL COMPONENT DESCRIPTION.......................................... 9-6
2. DETAILED DESCRIPTION.......................................................... 9-82.1 BASIC OPERATION................................................................................. 9-8
2.1.1 NORMAL (PROOF MODE) AND SORT/STACK MODE.................. 9-82.1.2 STAPLE MODE ............................................................................. 9-11
2.2 TURN GATE SECTION .......................................................................... 9-132.3 BIN DRIVE MECHANISM....................................................................... 9-142.4 BIN HOME POSITION............................................................................ 9-152.5 JOGGER SECTION................................................................................ 9-162.6 BIN REAR PLATE DRIVE SECTION...................................................... 9-182.7 GRIP ASSEMBLY................................................................................... 9-19
2.7.1 GRIP MOTOR................................................................................ 9-202.7.2 GRIP SHIFT MOTOR .................................................................... 9-21
2.8 STAPLE UNIT......................................................................................... 9-222.8.1 STAPLE UNIT DRIVE MECHANISM............................................. 9-222.8.2 STAPLER ...................................................................................... 9-232.8.3 PUNCH MECHANISM ................................................................... 9-252.8.4 STAPLE UNIT PULLED-OUT MECHANISM ................................. 9-26
2.9 JAM DETECTION................................................................................... 9-272.10 TIMING CHART.................................................................................... 9-28
2.10.1 SORTER/STAPLER TIMING CHART (PROOF MODE) .............. 9-282.10.2 SORTER/STAPLER TIMING CHART (STAPLE MODE) ............. 9-29
3. SP MODE .................................................................................. 9-303.1 SERVICE TABLES (MAIN CONTROL BOARD)..................................... 9-30
3.1.1 DIP SWITCHES............................................................................. 9-303.1.2 PUNCH POSITION........................................................................ 9-313.1.3 TEST POINTS ............................................................................... 9-313.1.4 FUSES........................................................................................... 9-31
A246/A247/A248 x SM
4. REPLACEMENTS AND ADJUSTMENTS ................................. 9-324.1 EXTERIOR COVER REMOVAL ............................................................. 9-324.2 STAPLER REMOVAL AND REINSTALLATION..................................... 9-334.3 JOGGER PLATE REMOVAL AND INSTALLATIOIN.............................. 9-344.4 BINS REMOVAL..................................................................................... 9-354.5 MAIN MOTOR REMOVAL...................................................................... 9-394.6 GRIP ASSEMBLY REMOVAL ................................................................ 9-404.7 UPPER GRIP ASSEMBLY REMOVAL................................................... 9-414.8 GRIP SHIFT MOTOR REMOVAL........................................................... 9-424.9 GRIP MOTOR AND SENSORS REMOVAL ........................................... 9-43
4.9.1 GRIP MOTOR/GRIP MOTOR HP SENSOR/GRIP SHIFT MOTOR HP SENSOR REMOVAL............................ 9-43
4.10 MAIN CONTROL BOARD REPLACEMENT......................................... 9-444.11 STAPLE POSITION ADJUSTMENT..................................................... 9-454.12 PUNCH POSITION ADJUSTMENT STANDARD ................................. 9-464.13 HELICAL WHEELS REMOVAL ............................................................ 9-474.14 PUNCH UNIT REMOVAL ..................................................................... 9-52
20-BIN SORTER STAPLER A658
1. OVERALL MACHINE INFORMATION ...................................... 10-11.1 SPECIFICATIONS.................................................................................. 10-11.2 COMPONENT LAYOUT ......................................................................... 10-2
1.2.1 MECHANICAL COMPONENT LAYOUT........................................ 10-21.2.2 DRIVE LAYOUT............................................................................. 10-31.2.3 ELECTRICAL COMPONENT DESCRIPTION ............................... 10-4
2. DETAILED DESCRIPTION........................................................ 10-52.1 BASIC OPERATION............................................................................... 10-5
2.1.1 NORMAL MODE AND SORT/STACK MODE................................ 10-52.1.2 STAPLE MODE ............................................................................. 10-72.1.3 BIN DRIVE MECHANISM .............................................................. 10-82.1.4 BIN HOME POSITION ................................................................... 10-92.1.5 JOGGER MECHANISM............................................................... 10-102.1.6 GRIP ASSEMBLY........................................................................ 10-112.1.7 STAPLER UNIT ........................................................................... 10-122.1.8 STAPLER SWITCH ..................................................................... 10-132.1.9 PAPER FEED AND MISFEED DETECTION TIMING.................. 10-142.1.10 JAM DETECTION...................................................................... 10-16
3. REPLACEMENT AND ADJUSTEMENT ................................. 10-173.1 EXTERIOR COVER REMOVAL ........................................................... 10-17
3.1.1 FRONT COVER........................................................................... 10-173.1.2 REAR COVER ............................................................................. 10-17
SM xi A246/A247/A248
3.1.3 TOP COVER.................................................................................10-173.1.4 LOWER COVER...........................................................................10-17
3.2 GRIP ARM REPLACEMENT .................................................................10-193.3 BIN REMOVAL ......................................................................................10-203.4 TRANSPORT MOTOR REMOVAL........................................................10-21
LARGE CAPACITY TRAY A822
1. OVERALL MACHINE INFORMATION....................................... 11-11.1 SPECIFICATIONS.................................................................................. 11-11.2 MECHANICAL COMPONENT LAYOUT................................................. 11-21.3 ELECTRICAL COMPONENT DESCRIPTION ........................................ 11-3
2. DETAILED DESCRIPTION......................................................... 11-42.1 MECHANICAL OPERATION .................................................................. 11-42.2 PAPER LIFT MECHANISM .................................................................... 11-52.3 PAPER END DETECTION ..................................................................... 11-7
3. REPLACEMENTS AND ADJUSTMENTS.................................. 11-83.1 EXTERIOR COVER REMOVAL ............................................................. 11-8
3.1.1 FRONT COVER REMOVAL .......................................................... 11-83.1.2 REAR LOWER COVER REMOVAL............................................... 11-83.1.3 TOP COVER REMOVAL ............................................................... 11-8
3.2 PAPER FEED ROLLERS REPLACEMENT............................................ 11-93.3 LCT FEED CLUTCH REMOVAL ...........................................................11-103.4 UPPER COVER SWITCHES REMOVAL ..............................................11-113.5 SIDE-TO-SIDE REGISTRATION ADJUSTMENT..................................11-12
APPENDIX
1.0 DUPLEX JAM TROUBLESHOOTING GUIDE ............................A1
REV. 05/99
SM A246/A247/A248a
IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY1. Before disassembling or assembling parts of the copier and peripherals,
make sure that the copier power cord is unplugged.2. The wall outlet should be near the copier and easily accessible.3. Note that some components of the copier and the paper tray unit are
supplied with electrical voltage even if the main switch is turned off.4. If any adjustment or operation check has to be made with exterior covers off
or open while the main switch is turned on, keep hands away from electrifiedor mechanically driven components.
5. The inside and the metal parts of the fusing unit become extremely hot whilethe copier is operating. Be careful to avoid touching those components withyour bare hands.
6. The copier is not attached to the table. Pushing the copier too heard maycause it to drop onto the floor. While moving the copier, push the table.
7. When the main switch is tuned on, the machine will suddenly start turning toperform the developer initialization. Keep hand away from any mechanicaland electrical components during this period.
HEALTH SAFETY CONDITIONS1. Never operate the copier without the ozone filters installed.2. Always replace the ozone filters with the specified ones at the specified
intervals.3. Toner and developer are non-toxic, but if you get either of them in your eyes
by accident, it may cause temporary eye discomfort. Try to remove with eyedrops or flush with water as first aid. If unsuccessful, get medical attention.
OBSERVANCE OF ELECTRICAL SAFETY STANDARDS1. The copier and its peripherals must be installed and maintained by a
customer service representative who has completed the training course onthose models.
CAUTION: The RAM board on the main control board has a lithium batterywhich can explode if replaced incorrectly. Replace the RAM boardonly with an identical one. The manufacturer recommends replacingthe entire RAM board. Do not recharge or burn this battery. UsedRAM board must be handled in accordance with local regulations.
A246/A247/A248 SMb
SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL1. Do not incinerate the toner cartridge or the used toner. Toner dust may ignite
suddenly when exposed to open flame.2. Dispose of used toner, developer, and organic photoconductor according to
local regulations. (These are non-toxic supplies.)3. Dispose of replaced parts in accordance with local regulations.4. When keeping used RAM boards in order to dispose of them later, do not put
more than 100 RAM boards per sealed box. Storing larger numbers or notsealing them apart may lead to chemical reactions and heat build-up.
OVERALL INFORMATIONSORTER STAPLER A821
APPENDIX
DETAILED DESCRIPTIONS20 BIN SORTER STAPLER A658
INSTALLATIONLARGE CAPACITY TRAY A822
SERVICE TABLES
PREVENTIVE MAINTENANCE
REPLACEMENT AND ADJUSTMENT
TROUBLESHOOTING
DUAL JOB FEEDER A610
TAB
POSI
TIO
N 2
TAB
POSI
TIO
N 1
TAB
POSI
TIO
N 3
TAB
POSI
TIO
N 4
TAB
POSI
TIO
N 6
TAB
POSI
TIO
N 5
TAB
POSI
TIO
N 8
TAB
POSI
TIO
N 7
Rev. 05/99
OVERALL INFORMATION
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SPECIFICATION
SM 1-1 A246/A247/A248
1. OVERALL MACHINE INFORMATION1.1 SPECIFICATIONConfiguration: ConsoleCopy Process: Dry electrostatic transfer systemToner Supply Control: Fuzzy ControlPhotoconductor: OPC drumOriginals: Sheet/BookOriginal Size: Maximum A3/11" x 17"Original Alignment: Left rear cornerCopy Paper Size: Maximum A3/11" x 17" (Tray & By-pass)
A4/81/2" x 11" (Tandem LCT)Minimum A5/51/2" x 81/2" (Tray)
A4/81/2" x 11" (Tandem LCT)A6/51/2" x 81/2" (By-pass)
Duplex Copying: Maximum A3/11" x 17"Minimum A5/51/2" x 81/2" (Sideways)
Copy Paper Weight: Paper tray: 52 ~ 128 g/m2, 14 ~ 34 lbBy-pass feed table: 52 ~ 200 g/m2, 14 ~ 53 lbDuplex copying: 64 ~ 104 g/m2, 17 ~ 24 lb
Reproduction Ratios: 4 Enlargement and 5 Reduction + Create Margin(93%)
A4/A3 Version LT/LDG Version
Enlargement200%141%122%115%
200%155%129%121%
Full Size 100% 100%
Reduction
82% 75% 71% 65% 50%
85% 77% 74% 65% 50%
SPECIFICATION
A246/A247/A248 1-2 SM
Power Source: 115 V, 60 Hz, more than 20 A (for N.A)220 ~ 240 V, 50 Hz/60 Hz, more than 10 A (forEurope and Asia)
Power Consumption: - A246 copier -Copier only Full system*1
Warm up 1.20 kVA 1.22 kVAStand-by*2 0.22 kVA 0.24 kVA
Low Power mode*2 0.185 kVA 0.205 kVACopying 1.40 kVA 1.40 kVA
Maximum 1.70 kVA 1.75 kVAOff-mode 0.001 kVA 0.001 kVA
- A247 copier -Copier only Full system*1
Warm up 1.20 kVA 1.22 kVAStand-by*2 0.22 kVA 0.24 kVA
Low Power mode*2 0.21 kVA 0.23 kVACopying 1.50 kVA 1.50 kVA
Maximum 1.70 kVA 1.75 kVAOff-mode 0.001 kVA 0.001 kVA
- A248 copier -Copier only Full system*1
Warm up 1.20 kVA 1.22 kVAStand-by*2 0.22 kVA 0.24 kVA
Low Power mode*2 0.21 kVA 0.23 kVACopying 1.60 kVA 1.60 kVA
Maximum 1.70 kVA 1.75 kVAOff-mode 0.001 kVA 0.001 kVA
*1Full System:
Mainframe with dual job feeder, sorter staplerand 3,500-sheet large capacity tray
*2: When the anti-condensation heaters are off.
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SPECIFICATION
SM 1-3 A246/A247/A248
Noise Emission: Sound Pressure Level:The measurements are made according toISO7779
- A246 copier -Sound pressure level (The measurements are made according to ISO 7779 at
the operator position.)Copier only
Stand-by Less than 34 dB (A)Copying Less than 57 dB (A) (average)
Sound power level (The measurements are made according to ISO 7779.)Copier only
Stand-by Less than 48 dB (A)Copying Less than 71 dB (A) (average)
- A247 copier -Sound pressure level (The measurements are made according to ISO 7779 at
the operator position.)Copier only
Stand-by Less than 34 dB (A)Copying Less than 59 dB (A) (average)
Sound power level (The measurements are made according to ISO 7779.)Copier only
Stand-by Less than 51 dB (A)Copying Less than 72 dB (A) (average)
- A248 copier -Sound pressure level (The measurements are made according to ISO 7779 at
the operator position.)Copier only
Stand-by Less than 36 dB (A)Copying Less than 59 dB (A) (average)
Sound power level (The measurements are made according to ISO 7779.)Copier only
Stand-by Less than 54 dB (A)Copying Less than 73 dB (A) (average)
SPECIFICATION
A246/A247/A248 1-4 SM
Dimensions:Width Depth Height
Copier only 690 mm27.2"
698 mm27.6"
980 mm38.6"
Copier with dual job feeder, sorter stapler,and 3,500-sheet large capacity tray
1,659 mm65.4"
698 mm27.6"
1,113 mm43.9"
Copier with dual job feeder, sorter stapler withpunch, and 3,500-sheet large capacity tray
1,659 mm65.4"
698 mm27.6"
1,113 mm43.9"
Weight: Copier only: (Without the optional platen cover= Approximately 2 kg)
Approximately 175 kgZoom: From 50% to 200% in 1% steps
Copying Speed: A4/LT (sideways) A3/DLT B4/LG
A246 copier51 (A4 others)50 (A4/in France)50 (LT)
26 32
A247 copier 60 31 38A248 copier 70 36 44
Warm-up Time: Less than 5 minutes (A246 copier, 20C)Less than 5.5 minutes (A247/A248 copier, 20C)
First Copy Time:(A4/51/2" x 11" sidewaysfrom the 1st feed station)
3.1 seconds (A246 copier)2.6 seconds (A247/A248 copiers)
Copy Number Input: Number keys, 1 to 999 (count up or count down)Manual Image DensitySelection:
9 steps
Automatic Reset: 1 minute standard setting; can also be set from 1second to 999 seconds or no auto reset.
Copy Paper Capacity: By-pass feed table: approx. 50 sheets Paper tray: approx. 550 sheets Tandem LCT tray: approx. 1,550 x 2=3100
sheetsToner Replacement: 1,160 g/cartridgeDeveloper Replacement: 1 Kg bag, black only.
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SPECIFICATION
SM 1-5 A246/A247/A248
Optional Equipment: Platen cover (A528-04) Dual job feeder (A610) 20 bin sorter stapler (Floor type) (A821-17:
Ricoh, -22: NRG, -15: Savin/Ges U.S.A. 26:Infotec)
3,500-sheet Large capacity tray (A822) Receiving tray (A446-05) Key Counter Bracket D (A509-03) 20 bin sorter Stapler (Floor type) with punch
(A821-57 (3 holes), -67 (2 holes): Ricoh, -62:NRG, -66: Infotec, -55: Savin/Ges U.S.A.)
Guidance ROM KIT Type U (A870) (Language) Editing sheet (spare part) Original Tray type F (A430-07) Sorter Adapter type L (A902-19) 20 bin sorter