Sanyo SFX-11 User manual

SANYO —
SERVICE MANUAL Facsimile Tranecener
PRODUCT CODE NO.
1 145 642 25 SFX-11
(GERMANY)
MAIN SPECIFICATIONS
ae
; Type
Desk-top type transceiver
K :
' Line connected | Public switched telephone network
!
_ Size of recording paper i 216mm (8.5”) x 30m (98)
' Effective scanning width | 208mm (8.2”)
: zs
Effective recording width 212mm (8.3”)
Transmission speed | 9600/7200/4800/2400 BPS e
Transmission time Approx. 15 sec. (Transmission aS standard)
Nae scanning density ” Fine mode: 8 ole: Senderdebne
Sub scanning density : 7.7 lines/mm (fine) 385: linpaiini(atandard) 154 lines/mm (Super fine mode) i
* Compression mode MH (Modified Huffman) and Sanyo original
| Reading method las
Recording method Thermal printing
| Power supply | 230V, 50/60Hz |
| Power consumption Stand-by: 5W, Transmission: 20W, Reception: 120W, Copy: 130W |
T Outer dimensions “| 378(W) x 80(H) x 227(D) mm |
(W x Hx D) 14.9” x3.1” x89”
| Weight Approx. 3.7kg (8.1 Ibs)
3.
| Ambient temperature | 5°C ~ 35°C (41°F ~ 95°F)
REFERENCE NO. SM620006

INDEX
Page
ToS TALLATION ea isac3:o paid eee oe Soe Rite Sees a eG es ae rasa Gea Ba desea tboe aleacetangse si aleS alee aida tied aaays 1~8
2. PERIODICAL INSPECTION AND MAINTENANCE .......... 0... ccc ccc cece cece ence ene e tees teeeeeeeeene 9
BORITUEINE 73 'ci4 dior Yona eaaieat veal daw tees vetoing Meas EGA ae Redd curio eed eth genes Caan 10~ 12
4. MECHANICAL OUTLINE iciccieeseciie tend eeae Unies aie 4 diese a detleedi dau deeds dnielgne shee ae Se dkA 12,13
5. + ROUBLE SHOOTING
=-". Explanation of the function for each PCBS...... 2... ccc cece cece ee ence nee e ee eeeneeeeeeees 14,15
5-2. Trouble shooting for Mechanical Parts ........ ccc ccc cece ence cece nese eee sereeteeeeeeteee 16
5-3. Trouble shooting for circuitry 0.2... ccc ccc ccc cece ee cece eee eeeeeeeceeseeeeceeueeeens 17~ 21
DAS EXTOL CODE listisie, 25 ess eiahaie 4 ors ape ere ha Wises ove b5 ab yaen, cond Sou LhaySliwadt oe deg easeeale-ssaih bdgseras ge etaiee NEES 22, 23
6 =EPAIRS
2-1..‘Remioval of the: main parts: octets scan dejsseiici sas die eaen ed he saws selec Seiad orate lot ovecave tpi gew Via wiahovbes 24, 25
5-2. Replacement of the main parts .......... 0 ccc cece cece cc ccc cece eee e eee ee seeeeeeveveveuees 25, 26
5-2 Operation of the Test Mode... i ci3 ace oh. piedecia wid begie'Gaceeieiw's a ie 0 $4 Wines s A-oeuilia Wow dee aereled 27 ~ 30
7. PRINTING OF THE REPORTS AND LISTS
Pole ACIVItY REDON iia dee wtekn ues Seven ehendgieveuatdedaanleg tie iis Sa sD escugeepasd co ueeetevenes 30
¥=2. One-touch Dial Listinscisiodcociesaced Saioein bebo 8b Sa es ss Bes 5 He dae areas vices g baa ee owe be aN 30, 31
me SPO! Dial WiSt os acco sees viedo itisnsince-e oie so wien eve wyarereauin aie aeldeie eas aah Yc dle bane detours Ree anes 31
44... Feature Switch WSt! s40435 dee weeke taatnnseee awd new aend dedibbedd Leeekeiiawlee houdiedar eats 31, 32
eee RAM: CODE List) iid ciiasseenecietotine oes Saino dhe oe Va Mawiene ee Leas baled eeirn noecdd awe eed s eee heats Meow S 32
4B: TLANSMISSION; RODOMM csc o.o:eieisis cise Sosa a ha Wa seihin Sai wie i aitla ioe elas. nie 0 Soe Saag wisi Patents gave Deir ajeree, O40 33
7-7. Timer Transmission Report 22.0... . cc cece cece ccc cece cece eee e eee eeeeceseeeecceseees ve ipltal Miababasca, Bast 33
& AM CODE LIST and Its Explanation ...... 2... ccc ccc cece eee e cece e ene e eee tet eeeneeneseeees 34 ~ 37
9. AUTO RECEPTION MODE DESCRIPTION ............ ccc cece cece cece eee e eee seceeeeeenressneeeeaes 38 ~ 40
10. BLOCK DIAGRAM AND THE SIGNAL FLOW
40-1. BLOCK: DIAGRAM | « scie.e.e cee siete eecede oie cesets ois a was alee te wale oie Sea g ee Us OG Bau ee a elb ee Coe wu ees 41, 42
40=2: CIRCUIT DESCRIPTION 2.5 '6:0056.5 a6 secgie'ets aussie bine ehgds hgndie grad oie aia aie cresa did Gus) tale gia se'asd Waseca dagie-tiae tbe 43, 44
11. SCHEMATIC DIAGRAM
(7) ALL CONNECTION DIAGRAM........... cece ccc eee cee eee tenet nee e nee nett eeeeenreeeeens 45, 46
2) “SCHEMATIC DIAGRAM i :0:05-553255,04 606 Sh eatd coco bd slong sewn ae Re ee wanes bates wae oe 47 ~ 59
> “PC BOARD: DIAGRAM: on :%.dcesc ected cawede caqmesdewes detain wale daamiae quien ced euteey ee eees 60 ~ 62
4) Signal name and function ...... 6... cece ee ee eee ee nee eee eee ee eee nett nee e ne aeee 63
12 PARTS SPECIFICATION
Ci) sHOCONFIGURATION ) oi. ccc ecese'e ese seca cels eca f erarn ce. ores Gomue 6 bie Gee aiereye enw Wier berape whew olen dade aver 64 ~ 68
2) Parts specification for power supply ........ 0... ccc ccc cece eee cece cece cette eee eee e eres eeeeeeneees 69
<3) Figure of main parts for power SUPPlY...... 0.0... cece ccc een nee enter ene tence ten tee eenen ens 69
12. TIME CHARTS OF EACH COMMUNICATION MODE............ 000s cece cect eee e tee ee tee eeeeteeeeeenes 70
42> SXaNAL FLOW. CHART 4. 24.:65.0.55 fecletins dete ddan Galidlouitace ews tied acu nates vis ahead abe sean adoeae tintdans 71
1S: -SXPLODED VIEW 2 cits es wars cnaie ried certs diseeeiHereccsa tard aeeenie ged ote SoA ae adi woe wh altig ieee Halen esta ees 72~ 74
UG SAR Petia ccdute ain Geel ean Aad a th ctiues sae acco wim ee a hnueh Aas Sata ee ehadia oaeniie uate 75~ 79

1. INSTALLATION
To unpack the SFX-11:
1. Open the carton.
2. Remove the accessories (handset, recording paper roll, etc.) from the carton.
3. Remove the fax machine along with the foam braces on both sides.
4, Remove the polyethylene wrapping ‘around the fax machine.
5. Remove the transportation tapes.
6. Save the carton and the foam braces for later storage and/or shipping.
7. Place the machine where there is access to an AC outlet and a modular phone jack. (Be sure to observe the
precautions below.)
Placement precautions
@ Avoid placing the SFX-11 in humid or dusty places, or in places where it will be exposed to excessive heat
(direct sunlight, heaters, etc.).
@ Do not step on, or set anything on, the AC cord. DAMAGE TO THE AC CORD IS A SAFETY RISK AND CAN
CAUSE A FIRE.
@ install the unit only on a stable surface.
@ Do not connect the SFX-11 to the same AC outlet as appliances that generate large amounts of interference
(heaters with thermostats, appliances with motors, etc.). It is best to use a completely separate electrical
outlet.
@ Keep the SFX-11 away from water. If water accidentally enters the unit, unplug the AC power cord immediately.
DO NOT SWITCH THE UNIT ON AGAIN. Contact an authorized Sanyo service center or dealer.
Handling precautions
e Do not remove any parts that are held in place with screws. (The SFX-11 does not contain any user-serviceable
items).
@ Maintain standard room temperature 5°C — 35°C(41°F —95°F) during use. Do not subject the unit to shock or
vibration. Do not move the unit while it is in use.
eA rapid increase in room temperature in cool weather can cause condensation to form inside the unit. If this
happens, wait at least 15 minutes after turning the unit on before attempting to operate it. Failure to do so may
result in paper jams and/or poor print quality.
® When cleaning the cover or operation panel of the unit, wipe gently using a damp cloth to which a small
amount of a neutral detergent has been added. NEVER USE SOLVENTS OR CHEMICALLY TREATED CLOTHS.
Telephone line and AC connections
Connecting telephone line
© The SFX-11 should be not share a telephone line cord with other communica-
tion equipment, except extension telephone and/or answering machine pre-
pared tor the connection, as this may obstruct the proper functioning or the
unit
Connecting handset
Handset Coiled cord
To wall jack
Telephone line cord*
* The telephone line cord differ with each country.
Handset jack
® Another telephone and/or answering machine can be connected to the SFX-11
through the line cord supplied by SANYO dealer.
Power supply
Connecting AC
AC outlet
|
Connect AC plug into AC outlet.

Setting
the
dialing
mode
switch
Installing
recording
paper
Set the dialing mode switch (DIAL) to the correct position for
your telephone line Press the [OPEN | button to open
the recording paper cover.
Your current
telephone
Push-button Rotary-dialing =
telephone telephone tage \neaihy Sob tke na
| Insert the supplied roll of recording
| paper in the paper holder with
both sides seated securely.
The sound
heard when Short audible tones Continuous
you'dial clickin
ig
sounds O x
Cas
Your
telephone
line is
Touch-Tone Puise-Dialing
Pull out the end of the recording
paper from the recording paper
: exit until it extends 4 inches.
Touch-Tone + Puise-Dialing
MFV o> IWV
Close the recording paper cover
by pressing both left and right
corners of the far end of the cover
If you are not sure which dialing system your telephone is using,
contact your telephone company.
Cut the extra recording paper.
@ Use only the recording paper specified for the SFX-11:
Type JH-A4T, 8.5” (216 mm) wide and 98° (30m) long. To purchase, contact
your dealer.
The supplied roll is 49' (15m) long.

<MACHINE INITIAL>
1.
2.
<SETTING YOUR STATION NAME AND FAX NUMBER>
1.
2.
3.
Turn the Power Switch ON.
Slide the Service Switch to ON position
(Refer to Page 27)
. Press! MENU! 5 times.
. Press: SET) .
. Press! SET .
. Press| SET] or| MENU! .
20 Jul.’92 12:00
TEST MODE ?
INITIAL SET ?
ALL CLEAR?
Press| SET] to clear the all data. ——-——__________> Return to Stand-by
Press| MENU! to clear the data individually.
Each time pressing the | MENU) , display scrolls as
shown right.
®
®-:
@
RAM CODE CLEAR ?
No
So
—@
AW
So
~o
ae m >
2 ~
REPORT DATA CLR?
Press| SET| to clear the data at the display. ——-—~__-> Return to Stand-by
Press! MENU! 4 times.
Press| SET).
Press| MENU} twice.
. Press| SET).
. Enter your station name.
A maximum of 24 characters can be entered.
(See page 4.)
. Press| SET .
. Enter your fax number.
Your fax number can be entered up to 20 digits in
length.
Example: 01234567
. Press SET).
, PBX MODE SETTING
Press ;
Press| SET).
Case of select “Nr”, into PBX No. setting mode.
(Case of “NEIN”, “ERDE”, “FLASH” ——> Return to Stand-by)
SET MODE ?
Oo.T DIAL SET
|
STATION CODE SET
ABCDEFGE
01234569
20 Jul .'92 12:00
NST MODE? NEIN
NST MODE? Nr
NST MODE? ERDE
NST MODE? FLASH
NST Nr. =
Mt
NST Nr. = 1239
Entered
up
number
to
4
digits
in
length,
press
|
SET}.
a
ee
Return
to
Stand-by
(if you make a mistake, press |STOP/C | then enter
the correct number.) 93
_

Mi
To
interrupt
programming,
press
|
STOP/C|
.
@
If
you
make
a
mistake
in
entering
character,
press|
STOP/C|
and
then
reenter
the
letter
or
number.
@
To
enter
a
hyphen
“-”
between
two
digits,
press
|
SPEED
DIAL
|
(|
KURZWAHL
|
).
@
To
enter
a
plus
sign
“+”
in
a
head
of
your
fax
number,
press
|
HOLD}.
@
The
header
can
be
printed
either
outside
the
original
document
(in
the
top
margin)
or
inside
the
document
itself.
You
can
select
the
desired
setting
using
feature
switch
No.
20.
NOTE:
If
you
choose
to
print
the
header
inside
the
document,
the
top
of
the
document
(about
1cm)
may
not
be
reproduced.
Printing outside of the original.
Jul.
20
92
12:00
SANYO
FAX
012345
P.
1
——a
Printing inside of the original.
Jul.
20
’92
12:00
FAX
012345
Entering names
You
can
enter
the
names
corresponding
to
the
programmed
numbers
using
number
keys.
The
codes
(2-digit
numbers)
assigned
to
each
letter
and
symbol
are
shown
on
the
next
page.
alcyalaye aaa (es
Example: To enter “SFX”
1. Press : [6| to enter “S”’
2.
Press
[2]
.
[3]
to
enter
“F”’
SF
3.
Press
:
|
to
enter
‘‘X”
SFX&
MUL
4.
Press
[o|
:
(0
to
enter
space.
SFX
&
i
i
|
Sal clatayemalelinleles
Example: To enter ‘‘67”
1.
Press
[6]
to
enter
‘‘6’’
and
then
press
i
#|
key
SFX
68
to
move
cursor
right.
2.
Press
to
enter
“7”.
SFX
678

<Table of letter and symbol codes>
Character Code No.
Yi ed
Character Code No.
Character Code No.
Character Code No.
Enter the number and press [#] to move cursor right.
Character Code No.
Prreeee reer rrr)
Enter the number. The cursor move to right automatically.
e if you make a mistake in entering a letter or a number, simply press [#| to move right or [*] to move left to
the appropriate space and then enter the correct letter or number.
<ONE-TOUCH DIAL MEMORY PROGRAMMING>
1. Press[ MENU] 4 times.
2. Press| SET] . cape ak, SET
(ZW.
(Z2.W.
4. Press one-touch dialing key (1-8). QO.
Example: To program a number using one-touch key
2, press one-touch key | 2].
5. Press| SET].
6. Enter the party’s name (to a maximum of 16
characters).
(See page 4 for detailed instructions.)
7. Press| SET] .

8. Enter the fax (or telephone) number.
(A maximum of 32 digits can be entered including
pauses and hyphens.)
Example: 0123456
9. Press{ SET].
To program other one-touch keys, repeat steps 4-9
above.
10. Press| STOP/C | to finish one-touch number pro- 20 Jul.'90 12:00
gramming.
Bi For instructions on printing out a numerical list of programmed names and numbers, see page 30.
Hi To interrupt programing, press! STOP/C |.
Mi To enter a hyphen (‘~”), press | SPEED DIAL| (| KURZWAHL |). °
To enter a three-second pause between two digits of a number, press [REDIAL/PAUSE] in the appropriate place. (The
;” symbol indicates a pause.)
<SPEED - DIAL MEMORY PROGRAMMING>
1.
Press|
MENU!
4
times.
SET
MODE
?
2. Press| SET]. ee DIAL SET
3. Press| MENU] . hae Es SET
4. Press| SET] . S.D No. = Of ?
(KW.
5. Enter a speed-dial number using the number keys.
Example: To store a fax number using speed-dial Ute Wd
number 10.
Press[ 1], then [0/.
ea el
7. Enter the party’s name (to a maximum of 16 ABCDEFG®
characters).
(See page 4 for detailed instructions.)
8. Press , a
9. Enter the fax (telephone) number to be stored. 012345
(A maximum of 32 digits can be entered, including
pauses and hyphens.)
Example: 0123456

Repeat steps 4-10 to program other numbers. Bie
11. Press |STOP/C| to finish speed-dial number pro- 20 Jul.'90 12:00
gramming.
BB For instructions on printing out a numerical list of programmed names and numbers, see page 31.
@ To interrupt programing, press | STOP/C} .
@ To enter a hyphen (‘~”), press | SPEED DIAL | ( |KURZWAHL |).
i
To
enter
a
three-second
pause
between
two
digits
of
a
number,
press
|
REDIAL/
PAUSE]
(|
WAHLWDH/PAUSE
|
)
in
the appropriate place. (The “;” symbol indicates a pause.)
OF TaTor-1 Tate Mm o)corelc-lanialsreMelilcm CLeMameltliiare
1. Press four times.
2. Press twice.
Example: One-touch 2
3. Press the one-touch button need to be cancelled. 0 : - Ne eS ?
( ‘ ‘
4.
Press
|
SET
|.
DEALER
A®
5. Press |STOP/C).
6. Press | SET].
Repeat steps 3-6 to cancel other one-touch key.
li
NO
Su
7. Press |STOP/C | to finish canceling.
OF Taler=iTatemm olcoleic-lanantsre ms) el-icremelr-liiae
1. Press four times.
2. Press | SET].
3. Press | MENU |.
4. Press | SET |.
Example: Speed dial number 10
5. Press the number need to be canceled. ; > : . is . = fo?
6. Press | SET]. DEALER A®
li
7. Press | STOP/C |.
No. = 1?
)
Ao
So
8.
Press
|
SET].
(
Repeat step 5-8 to cancel other speed dial.
9. Press [STOPIC].

<CALENDAR AND CLOCK>
—.
(Z.W.)
+ Pos HW) ten
4. Press (SET. 10 07. ‘92 10:00
5,
Enter
the
month,
day,
year
and
time
using
the
number
:
keys.
10
07.
‘92
12:00
@
The
time
must
be
entered
using
the
24-hour
system.
@
The
month,
day
and
year
should
be
entered
in
2
_
digits
each.
Example:
to
enter
July
20,
1992,
12:00,
press
[0],[7],
(2].[0}.[9).(2}.4).[2].[0]
ana[o}.
6.
Press
[SET].
20
Jul.
’92
12:00
@
If
you
make
a
mistake,
move
the
cursor
to
the
appropriate
place
then
enter
the
correct
number.
Press
[#]
to
move
the
cursor
right
Press [* | to move the cursor left

2. PERIODICAL INSPECTION AND MAINTENANCE
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3. OUTLINE
(1) Part name and functions
[Front view] Original guide Recording paper cover
Handset
Operation panel
Original exit
[Rear view]
Recording paper exit
[Inner view]
LY ‘—
Ee A
Y LS a © ed
~------ Paper holder
Vat
Document sensor
Document release lever
Green release lever Document feed roller
Setting switches
MODE CONTRAST AUTO/MANU
‘STU AINE SFE =| NORMAL UGHT HALF TONE = ALTO MANU
(4
-_ a
switch [AUTO/MANU |switch
(AUFLOSUNG)
| CONTRAST | switch
Ringer volume switch Monitor volume switch

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(2) Operation Panel
—11i—

(3) Effective text width
@
Transmittable
original
size
@
Effective
text
width
8.5” (216mm)
«>
; 5.8”
* (148mm)
Maximum
.2” (208mm)>
Y
ny
Effective
text width
49’ Minimum
(1.5m)
5.8”
(148mm)
Insertion
direction
~ ~
Insertion
direction
Insertion
direction
Note: An original other than specified, make a reduction
or enlargement copy by the photo copier, then use
it as an original document.
@ Effective thickness
1 original sheet
0.003” — 0.005”
(0.08 — 0.13mm)
0.002” — 0.006”
(0.05 — 0.15mm)
thickness
(per sheet)
multi sheets
Mi Notes on the suitability of documents:
@ Allow ink and/or glue dry completely before inserting a document.
@ Do not transmit curled or folded documents.
@ Make sure that any paper clips, staples or pins have been removed from documents.
e When using carbon paper, waxed paper or vinyl-coated paper, always use a carrier sheet.
e@ Never use documents thicker than 0.006” (0.15mm), metal sheets or cloth. Use a photocopy instead.
4. MECHANICAL OUTLINE
1) Transmission Mechanism
When,
in
Fig.
4-1,
the
document
is
inserted,
the
sensor
1
detects
the
document
and
the
transmission
motor
starts
to
rotate.
The
ADF
roller
is
rotated
by
the
rotation
of
the
transmission
motor
and
the
document
is
fed
up
to
the
piaten
roller
and
is
stopped.
When
the
START
or
COPY
button
is
pressed
here,
the
transmission
motor
rotates
again
and
the
document
is
fed
forward.
2)
As
shown
in
Fig.
4-2,
the
recording
paper
is
pressed
by
the
platen
roller
and
the
thermal
head.
The
platen
roller
is
rotated
by the
reception
motor
and
feeds
the
recording
paper
forward.
When
the
recording
is
finished,
a
broken
line
is
printed
where
the
recording
paper
should
be
cut.
There are two sensors for the recording paper, one is for detecting the recording paper itself and the other is for
detecting the recording paper ending.
When the black end-mark on the recording paper is detected by its sensor while receiving or copying is performed,
“PAPIER PRUEFEN” is indicated on the LCD after compieting the printing of its page.

M2 PCB
v
Power Switch
Ringer
Volume Switch UL
Monitor
Volume Switch if M4 PCB
Power Switch
Sensor 2
ADF Roller Piaten Roller
Contact
image Sensor
Transmission Motor
Fig. 4-1
— Thelma teed Platen Roller
Recording Paper Sensor
End-mark Sensor
Recording
Paper Reception Motor
\ MS PCB \ M1 PCB
Fig. 4-2
Telephone Line Jack
=
M3 PCB
Reception Motor
Transmission Motor
AUTO/MANU Switch
| -
I
i
CONTRAST
Switch
1
|
M5
PCB
M1
PCB
i-
e MODE Switch
Fig. 4-3

5. TROUBLE SHOOTING
5-1. Explanation of the function for each PCB
1.M-1(Main) PCB
This
PCB
contains
CPU
and
all
of
the
control
circuits,
the
following
functions are included.
1)LSI so called FAX ENGINE (TC35168F)
(1) 8-Bit CPU
(2) Modem :
- Modulation and Demodulation of signals
- Tone signal generation and detection
- Touch Tone Signal (DTMF) generation
- Pre-recorded Voice Prompt generation
- Melody generation (when conversation is put on hold)
(3) Codec:
- Coding and Decoding of image signal
(4) Image Signal Processor :
- Driving of CIS (Contact Image Sensor)
-
Convert
analog
signal
to
digital
signal
(two
or
multi
value)
- Reduction of image
(5) DMA (Direct Memory Access) Controller :
-
Used
when
transferring
the
data
from
image
signal
processor
to
line
memory, from line memory to modem, to thermal head and codec.
) Real Time Clock
) Stepping Motor Control
) Thermal head Control
) V/O ports control :
- NCU
- TEL
- Mechanism
- Operation Panel
- LCD control
2)1-Mbits EPROM :
This PROM contains the program to control CPU.
3)64-Kbits SRAM (2-pcs) :
Used as line memory for memorizing image data temporarily or various
data memory.
4)Memory back-up control :
Used to keep the stored data of SRAM and Clock.
5)NCU interface circuit :
This is a interface circuit for connecting the NCU and Modem.
—14—

2.M-2 PCB
This PCB consists of key matrix circuit controlled by "ROW" and "COL"
signals, and LED circuit.
3.M-3 PCB
This is a Network Control Unit connecting the telephone line and this facsimile,
and the following functions are included.
- Hook up detection
- Ringing detection
- Pulse Dialing Signal generation
- Relay driving
- Isolation circuit for transmission and reception
4.M-4 PCB
This is a telephone circuit PCB and the following functions are included.
- Speech network circuit
- Line monitor function
- Ringing generation
5.M-5 PCB
This is a power supply PCB using switching regulation method, and supplies
+5Vdc, +12Vdce, -12Vde, +24Vde. Also this PCB contains motor driving circuit
for transmission and reception motor.
6.LCD display
This LCD display consists of 16 digits x 1line LCD and common driving circuit.
7. Thermal Head
This thermal head consists of 1728 dots of heat generating elements and
driver circuit.
8. Contact Image Sensor
This contact image sensor converts scanned image to electrical signal.
9. Monitor Speaker
This is a speaker used for line monitor. A switch for monitor volume control is
mounted on M-4 PCB.
10.Ringer Buzzer
This
is
a
buzzer
to
generate
ringing.
A
switch
for
volume
control
is
mounted
on M-4 PCB.
11.Handset
This handset consists of a microphone and a speaker.

5-2.
Trouble
shooting
for
mechanical
Parts
When
trouble
occurs,
thoroughly
confirm
the
cause
of
the
trouble
and
carry
out
appropriate
repair.
SYMPTOMS
COUNTERMEASURE
The
document,
even
when
inserted,
is
/1.
The
platen
roller
is
not
rotating
|
1.
Press
the
green
release
lever,
then
properly.
insert
the
document
again.
2.
Dirt
on
the
ADF
roller.
2.
Clean
the
ADF
roller.
(See
page
9)
3.
The
sensor
1
is
not
adjusted
prop-
|
3.
Adjust
the
level
of
the
sensor
1.
erly
or
out
of
operation.
Confirm
the
operation
of
the
sensor
1
The
documents
are
fed
over-lapping.
|
Dirt
on
the
rubber
sheet.
(More than one sheet are fed at a time)
(See page 13)
The
document
is
not
fed
straight
1.
The
original
guide
is
not
adjusted
|
1.
Clean the rubber sheet. (See page 9)
Adjust the original guide along by
along by the original. the original.
.
Dirt
on
the
platen
roller.
2.
Clean
the
platen
roller.
(See page 9)
3. Adjust the pressure re-positioning
the Contact Image Sensor.
(See page 25)
Clean the platen roller. (See page 13)
3. Pressure for the Contact Image
Sensor is not equal in the both
sides.
The exceeding part of the original on
the platen roller is dirty
When copying or transmitting the
exceeding part of the original is
printed as blurred black if less than A4
or letter size of original is used.
When copying, white vertical line
appears that is not on the original.
. Clean the thermal head.
(See page 13)
2. Replace the thermal head.
(See page 25)
. Adjust the level of the sensor 1.
Confirm the operation of the sensor
1. (See page 13)
2. Completely close the cover.
. There is dirt sticking to the thermal
head.
2. The heating element of the thermal
head is broken.
. The recording paper sensor is not
adjusted properly or out of oper-
ation.
2. The recording paper cover is not
completely closed.
3. The switch for recording paper
cover is out of operation.
Although the recording paper is set
properly, “CHECK PAPER ROLL”
(‘PAPIER PRUEFEN’) is indicated on
the LCD.
. Replace the switch for the re-
cording paper cover. (See page 45)

5-3. Trouble shooting for circuitry
(1) No display on LCD light when Power switch is turned ON
Check the connection of CN1 (M-1) and CN51 (M-S).
NO
Check Pin No. 1 of CN1 (M-1), +5V ? Check Power Supply (M-5).
Check the connection of CN2-1 through 2-3 (M-1) and
CN21 through 23 (M-2).
Check the connection of CN24 (M-2) and LCD connector.
NO
Check the Main PCB (M-1). Check LCD.
(2) Key-in is impossible from the operation panel
Check the same as described (1).
K
NO
Check the connection of CN2-2 and 2-3 (M-2) Check the Main PCB (M-1).
oO
YES
Check the operation panel PCB (M-2).
(3) LCD indicates “CHECK PAPER ROLL” (‘““PAPIER PRUEFEN”)
Is recording paper set properly?
YES
Is the Receiving cover closed securely?
YES
Check the connection of CN8 (M-1).
YES
Is /PAP (CN8-pin No. 8) less than 0.8V ? Check the Receiving cover SW.
YES
Check the M-1 PCB. Check the sensor for the recording
paper.
<=

(4) No motor rotates when the original is inserted
NO
is /S1 (CN7-pin No. 2) less than 0.8V ?
YES
Check
the
connection
of
CN1
(M-1)
through
CN51
(M-5).
YES
NO
Is /RM01-04 (CN1 Pin No. 12 - 15) OK?
YES
Check the connection of CN7 (M-1).
Check the S1 sensor.
Check the M-1 PCB.
Check the connection of CN53.
YES
Check the Power supply PCB (M-5)
OK
Check the Transmission Motor.
(5) No copy is made
NO
Is the Head Test OK? (See page 31.)
YES
Check the Reading circuit.
(a) Printing Circuit (To be confirmed by the Head Test)
Check the printing circuit.
Check the connection of CN5 (M-1) through CN56
(Thermal Head).
Does
+24V
appear
at
CN1,
Pin
No.
4?
Check
the
Power
Supply
PCB
(M-5).
Does
HVON
(CN1,
Pin
No.
7)
work
properly
(High
at
printing)?
Do the signals (DATA,/LATCH, CLK (CNS, Pin No. 2 - 4)
appear normally?
Do the signals (/EN1 - 4 (CN5, Pin No. 5 - 8)) appear
normally?
NO
Check the M-1 PCB.
Check the Thermal Head.