Sanyo SFX-11 User manual

SERVICE MANUAL
PRODUCTCODENO.
1 145 642 25
Facsimile Transceiver
/
IFILE NO.
SFX-I 1
(GERMANY)
MAIN SPECIFICATIONS
~Type Desk-toptype transceiver
‘—
Line connected Public switchedtelephone network
-——
Size of recordingpaper I216rnm(8.5”) x30m (98’)
—
Effective scanning width 208mm (8.2”)
-.—–—
Effective recordingwidth ~212mm (8.3”)
.____+——–—.
Transmissionspeed I9600/7200/4800/2400” Bps
——-4—---—- ‘----—
Transmissiontime Approx, 15 sec. (Transmissionmode: standard)
Main scanning density Fme mode: 8pels Standard: 8pels
-——
Sub scanning density 7.7 lines/mm (fine) 3.85: lines/mm (standard) 15.4 Iineslmm (Super fine mode)
~Compression mode MH (Modified Huffman) and Sanyo original
IReading method Cls
I
~Recording method Thermal printing
Power supply 230V, 50/60Hz
iPower consumption Stand-by 5W, Transmission 20W, Reception:120W, COPY 130W
Outer dimensions
(W XHXD) %(x ;;~(~+9227(D) mm
“
Weight Approx. 3.7kg (8.1 Ibs)
Ambient temperature 5°C -35°C (41”F -95”F)
REFERENCE NO, SM620006

Page ~
1. INSTALLATION .................................................................................1-8
2. PERIODICAL INSPECTION AND MAINTENANCE ....................................................... 9
3. OUTUNE ....................................................................................10-12
4. MECHANICALOUTUNE ........................................................................ 12,13
5. TROUBLESHOOTING
5-1. Explanation ofthefunctionforeach PCBS .....................................................14.15
5-2. Trouble shooting for Mechanical Patts ........................................................... 16
5-3. Trouble shooting forcircuitry ...............................................................17–21
5-4. Error code list.............................................................................22,23
6. REPAIRS
6-1. Removal of themain parts .................................................................. 24,25
6-2. Replacementofthe main parts .....,........................................................ 25,26
6-3. OperationoftheTestMode ................................................................27.3O
7. PRINTING OF THE REPORTS AND USTS
7-1. Activity Report ...............................................................................30
7-2. One-touch Dial List ........................................................................30.31
7-3. Speed Dial List ...............................................................................31
7-4. Feature Switch List ........................................................................31,32
7-5. RAM CODE List ..............................................................................32 ‘-
7-6. Transmission Report ..........................................................................33
7-7. TimerTransmission Report ..................................................................... 33
8. RAM CODE USTandlts Explanation ............................................................34-37
9. AUTO RECEPTION MODEDESCRIPTION ........................................................38-40
10. BLOCK DIAGRAM ANDTHESIGNAL FLOW
10-1. BLOCK DIAGRAM ........................................................................ 41,42
10-2. CIRCUIT DESCRIPTION ...................................................................43.44
11. SCHEMATIC DIAGRAM
(1) ALL Connection DIAGWM ............................................................... 45,46
(2) scHEMAnc DIAGMM .......! ...........................................................47.59
(3) PcWARDDIAGMM ....................................................................m.62
(4) Signal nameandfunction ...........................,........................,................. 63
12. PARTSSPECIFICATION
(1) IC CONFIGURATION .,..............,...........................................,.........64-68
(2) Pa~s~ifimtion for~wer supply ............................................................. 69
(3) Figure of main parts for power supply ..................................................................69
13. TIME CHARTS OF EACH COMMUNICATION MODE ...................................................70
14, SIGNAL FLOWCHART ....................................................,....................... 71
15. EXPLODED VIEW .............................................................................72-74 ‘-
16. PARTSUST .................................................................................75-79

1. INSTALLATION
To unpack tha 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 amodular phone jack. (Be sure to observe the
precautions below.)
Placement precautions
●Avoid piacing the SFX-11 in humid or dusty places, or in places where it wiil 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 ASAFETY RISK AND CAN
CAUSE AFIRE.
●Install the unit only on astable 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 acompletely separate electrical
outiet.
●Keep the SFX-11 away from water. if water accidentally CN’WS the unit, IJnPlu9 the AC power cord immediately.
DO NOT SWiTCH THE UNIT ON AGAiN. Contact an authorized Sanyo service center or dealer.
Handling pracautiona
●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.
●Arapid increase in room temperature in cooi weather can cause condensation to form inside the unit. If this
happens, wait at ieaat 15 minutes after turning the unit on before attempting to operate it. Faiiure to do so may
result in papar jams and/or poor print quality.
●When cleaning the cover or operation panei of the unit, wipe gently using adamp cloth to which asmaii
amount of aneutral detergent has been added. NEVER USE SOLVENTS OR CHEMICALLY TREATED CL~HS.
Telephone line and AC connections
9The SFX.11 should be @share atelephone Ihnecord ‘,wth other communica-
tion equipment, except extension telephone andlor answering machme pre-
pared for the connecton, as this may obstruct the proper functioning or me
unit
To Wall jack
Telephone line cord*
+e-
/
—.The telephone hne cord dttfer w!th each country
e-o--m- -,0-.-9.
~=” ‘~ ~andsetack
●Another telephone andlor answering machme can be connected to the SFX-11
through the Ihnecord suppled by SANYO dealer.
~
Power supply
“u
Connect AC plug mto AC outlet.
—l—

Setting the dialing mode switch
Set the dialing mode switch (DIAL) to the correct position for
vourteleDhone line. .
uPush-button Rotary-dialing
telephone telephone
I
The sound
heard when Shorl audible tones Continuous
you dial
sounds
Your
telephone Touch-Tone
line is
t\Ml
.
Set the switch
to m
/.D
. ,
CD
\
~/Touc~.T~e Puh-oiahg Touch-Tone-b Pulss-Olaltr
If you are not sure which dialing system your telephone ia using,
contact your telephone company.
Installing recording paper
\I
2
3
Press the~OPEN button to open
the recording paper cover. L
Insertthe supplied rollof recording
paper in the paper holder with
both sides seated securely.
&&
Pull out the end of the recording
paper from the recording paper
exit until it extends 4inches.
4
5
Close the recording paper cover
by pressing both left and right
corners of the far end of the cover
firmly.
—
ra7i Cut the extra recording paper,
■Use only the recording paper specified for the SFX-11:
Type JH-A4T, 8.5” (218 mm) wide and 98’ (30m) long. To purchase, contact
your dealer.
The supplied roll is 49’ (15m) long.
–2–

<MACHINE INITIAD
1.Turn the Power Switch ON.
2. Slide the Service Switch to ON position
(Refer to Page 27)
3. Press MENU I5times.
4. Press ~SET
5. Press ~SET .
6. Press ~SET or MENU’ .
Press \.SET: to clear the all data.
Press TMENU Ito clear the data individually.
Each time pressing the H,display scrc?llsas
shown right.
~Return to Stand-by
1.
2.
3.
4.
5.
6.
7.
L
8.
9.
(20 JuI. ’92 12:001
@l RAM CODE CLEAR ?I
OT&S.D CLEAR?
@(z:w. )( K. W.)
LPress ISET ~to clear the data at the display. b
<SETTING YOUR STATION NAME AND FAX NUMBER>
Press [-]
Press [SE~ .
Press ~ME~
_–——
Press l_SE~ .
4times.
twice.
TEST MODE ?
INITIAL SET ?
ALL CLEAR?
~1 REPORT DATA CLR?I
Enter your station name.
Amaximum of 24 characters can be entered.
(See page 4.)
Press [S=] .
Enter your fax number.
Your fax number can be entered up to 20 digits in
length.
Example 01234567
Press ~E~ .
PBX MODE SEl17NG
Press WI.
Return to Stand-by
SET MODE ?
O.T DIAL SET
(Z. w)
STATION CODE SET
m
ABC DEFG _
I
II
0123456[
20 JuI. ’92 12:00
NST MODE? NEIN 1+1
~1
NST MODE? Nr.
~1
NST MODE? ERDE
INST MODE? FLASH I--J
Press ~]. NST Nr. =n
Case of select “Nr”, into PBX No. setting mode.
(Case of “NElN”, “ERDE’, “FLASH” ~Return to Stand-by) NST Nr. =123~
bEntered up number to 4digits in length, press ~]. ~Return to Stand-by
(If you make amistake, press ~/~1 then enter
the correct number.) –3–

■To interrupt programming, press [~] .
■If you make amistake in entering character, press-1 and then reenter the letter or number.
STo enter ahyphen “-” between two digits, press ~(~~] ).
■To enter aplus sign “+” in ahead of your fax number, press ~] .
■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.
----- ----- ----- .....----- ----- ----- ------ ----- ----- ----- ----- ----- ----- --
II
1I
FAX 012345
i~
P. 1I
—
Ii
Printing inside of the original.
----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- --.-- ----- ...... .
II
II
II
II
IJui. 20’921200 SANYO FAX 012345 P. 1I
II
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.
.e--
Example To enter “SFX”
1. Press ~“@to enter “S” Sa
2. Press ~o@to enter “F” SF- I
~Press ~“~to enter “X” SFX- 1
n
4. Press O“~to enter space. SFX nI
.00-
Example To enter “67”
nEl
1. Press 6to enter “6” and then press # key SFX 6E
to move cursor right.
2. Press @to enter “7”. SFX 679
A

L
,....’ .“. ,’
~able of letter and symbol codes> —
Character Code No. Character Code No. Character Code No. Character Code No. Character Code No.
space .e.cl.o... 00 (................. 14 K............... 28 Y................. 42 m............... 56
.........01 )................. 15 L............... 29 z................ 43 n............... 57
,...........02 <.s.............. 16 M............... 30 a................. 44 0 ............... 58
........03 >.............. 17 N............... 31 b................. 45 p.............. 59
,..........04 A............... 18 0............ 32 C................. 46 q............... 60
..........05 B.....s........ 19 P.......... 33 d................. 47 r.............. 61
+...........06 c............. 20 Q....... 34 e................. 48 s .............. 62
—.......07 D.............. 21 R......... 35 f................ 49 t............... 63
I..........08 E............. 22 S~~~~~~~~~~~~~~~36 g............. 50 U............... 64
&..........09 F......... 23 T...... 37 h................. 51 v ............. 65
*...........10 G................. 24 U..... 38 i ................ 52 w............... 66
#...........11 H................. 25 Q...... 39 j .... 53 x ............... 67
!...........12 I ................. 26 w......... 40 k.............. 54 y ............... 68
*...........13 J................ 27 x.............. 41 I .............. 55 z............... 69
I
●To enter number
bo-6 ............................... ❑
Enter the number and press #to move cursor right.
7- 9............................... Enter the number. The cursor move to right automatically.
●If you make amistake in entering aletter or anumber, 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.
2.
3.
4.
5.
6.
7.
Press m4times. ISET MODE ?I
Press ~.O.T DIAL SET
(Z. w.)
Press ~[ again.
Press one-touch dialing key (1-8).
Example To program anumber using one-touch key
2, press one-touch key ❑.
Enter the party’s name (to amaximum of 16
characters).
(See page 4for detailed instructions.)
Press ~] .
O.T No. =0?
(Z. w.)
O.T No. =H?
(Z. w.)
I
IABCDEFGB I
I
—5—

8.
9.
10.
Enter the fax (or telephone) number.
(A maximum of 32 digits can be entered including 012345~
pauses and hyphens.)
Example 0123456
Press ~.O.T No. .~?
To program other one-touch keys, repeat steps 4-9 (Z, w.)
above.
Press -] to finish one-touch number pro-
gramming. 20 JuI.’9O 12:00
■For instructions on pfinting out anumerical listof programmed names and numbers, see page 30.
■To interrupt programing, press -].
■To enter ahyphen (“-”), press I(~] ). “
■To enter athree-second pause between two digits of anumber, press ~REDIAL/PAUSE] in the appropriate place. (The
“;” symbol indicates apause.)
<SPEED -DIAL MEMORY
1.
2.
3.
4.
5.
6.
7.
8.
9.
Press m] 4times.
Press ~.
Press -1.
Press ~~ .
PROGRAMMING>
Enter aspeed-dial number using the number keys.
Example To store afax number using speed-dial
number 10.
Press ❑,then ❑.
Press ~] .
Enter the party’s name (to amaximum of 16
characters).
(See page 4for detailed instructions.)
Press ~.
Enter the fax (telephone) number to be stored.
(A maximum of 32 digits can be entered, including
pauses and hyphens.)
Example: 0123456
SET MODE ?I
I1
O.T DIAL SET
(Z. w.)
SPEED DIAL SET
(K. W.)
S.D No. .()~7
(K. W.)
S.D No. =18?
(K. W.)
I
d
ABC DEFGU
I012345~
—6—

10.
L11.
Press :~~ .
Repeat steps 4-10 to program other numbers.
Press m] to finish speed-dial number
gramming.
S.D No. =Ifl?
(K. W.)
pro- Zo JuI.’9O 12:00
IJ
■For instructions on ~rintina out anumerical list of Drocirammed names and numbers, see page 31.
■To interrupt programing, p~ess[~]. “
■To enter ahyphen (“-”), press ~1 (~] ).
9To enter athree-second pause between two digits of anumber, press ~REDIAL/PAUSE \(\WAHLWDH/PAUSE ]) in
the appropriate place. (The”;” symbol indicates apause.)
1. Press mfour times.
2. Press [SET] twice.
Example: One-touch 2
3.
\.
4.
5.
6.
7.
Press the one-touch button need to be cancelled.
Press [~].
Press [-I.
Press ~\.
Repeat steps 3-6 to cancel other one-touch key.
Press mto finish canceling.
O.T No. .~?
(Z. w.)
DEALER A-
I
O,T No. =m?
fz. w.)
1.
2.
.—
3.
4.
5.
6.
7.
8.
-9.
Press IMENU Ifour times.
Press ~].
Press m].
Press ml.
Press the number need to be canceled.
Example: Speed dial number 10
IS.D No. =00?
(K. W.)
Press ml.
Press [-1.
Press ~~.
Repeat step 5-8
Press -].
to cancel other speed dial.
m
IS,D No. =fll?
(K. W.)
—7—

<CALENDAR AND CLOCIO
1. Press m4times.
2. Press ~.
3. Press w] 3times.
4. Press ~.
5. Enter the month, day, year and time using the number
keys.
●The time mustbe entered usingthe 24-hour system.
●The month, day and year should be entered in 2
digitseach.
Example to enter July 20,1992,1200, press ~, ❑,
m@l@l@l, mJ@l@l@m.
ISET MODE ?I
O.T DIAL SET
(Z. w.)
TIME SET
110 07. ’92 10:OOI
10 07. ’92 12:00
6. Press ~]. 20 JuI. ’92 12:00
HIf you make amistake, move the cursor to the appropriate place then enter the correct number.
Press ❑to move the cursor right
Press ❑to move the cursor left
-6–

(((
Turn off the power switch.
Gently wipe the housingwith asoftclean cloth dampened with asmall amount
of aneutral detergent.
●Do not use acleaning agent, such as alcohol and benzene.
If astreak or dirty pattern appears on acopy or other party’s received copy,
clean the document feed roller-2 with asoft clean cloth with asmall amount of
neutral detergent.
-l Open the operation panel.
~.
+2.
I
Y’ 2In order to rotate the document feed
roller-2, inserfasmall piece of papar into
the portion of asensor as shown in the
figure.
3Cleanthedocumentfwd roflar-2then
dry thoroughlyto prevent the document
from jamming.
If the documentjamming or overlappingfrequently occurs, clean the document
feed roller-1and sheet break withacottonswab dampened with asmall amount
of aneutral detergent.
1
Open the operation panel then pull the
document release lever as shown mthe
figure.
2..—
In order to rotate the document feed
roller-1, insert asmall piece of paper mto
the document sensor as shown mthe
figure.
[I
3Clean the document feed roller-1 and
sheet break, then dry it thoroughly to
prevent the document from jamm!ng.
feed roller-l
Documentfead roller-~ bocurnanfeaneor

3. OUTLINE
(1) Pati name and functions
[Fr
[Inner view]
Document release lever
[Rear view]
Recording paper exit
Telephone line jitch
Paperholder
Documentsensor
Greenreleaselever~~Dmurnentfeed roller
Setting switches
MODE CONTRAST AuTO/M4NU
I
(AUFLOSUNG)
~switch1
‘~UTO/MAN~switch
Ringer volume switch __ll- Monitor volume switch
—1 o-

SPEEDDIALKey
0[KURZWAHL)
eREOIAL/PAUSE
rAHLWDH/pAUSEI
ERROR kmp
0(FEHLER)
@DISPtAY
@MENU Key
OANSWER Lamp
OANSWER Key
esTARTKey
~-$q ,
IK— ‘2—1A‘3—“~{ STOP/C
I—— -1
COPY START
QQ
●Press thie key when using speed dial.
●Press this key toradialthe last numberdialed.
●Pressthiskeyto insertapausebetweentwodigitsinanumberbeingdialed.
●Flashesifacommunicationerroroccurs.
●Showacalendarand clock functions, operation guidance, machine status, etc.
●Preae this key when selecting varioua functions.
●PrOSSttils key to confirm selections.
●Lightswhen the unit is eat to answer fncrda
●Preeethis keytoaettoarlawaf mode.
●Presstowtransmissionof ~nu~ reception.
(
@lCOPY Key ●Presstomake aCOpy.
@STOP/C Key ●Press to interrupt transmission/reception/copying or to stop the ERROR indicator
Iflashing.
‘●Press to cancel varioue setting and dialing functions and to remove an original
Idocument that has been placed in the unit.
@ONE TOUCH Keys ●Frequently dialed numbers can be stored in memory using these 8keys.
Tha one-touchkeysare alsousedwhen enteringnamesin memory.
tBTONEKeY(lB)) ●Press this key to switch from pulse dialing to Touch-Tone dialing.
@SPEAKER Key (tll )●Allows you to monitor acall without using the handset.
@HOLDKey(~) ●Temporarilyplaces acall on hold,
~Number Keya ●These keys are used to dial fax and phone numbers and to change various
o-9# ●funtilons,

(3) Effective text width
9Transmittable original size ■Effective text width
—
(1%1)
u-
1Insertion “48mmk
direction
Note:
■Effective thickness
14-8.2° (208mm~
I
//
//
/Effective /
/+text width ~/
//
//
/u/
Insertion
K’1 direction H
An original other than specified, make areduction
or enlargement copy by the photo copier, then use
it as an original document.
II1original sheet Imulti sheets I
thickness 0.002 “–0.006 “0.003 “-0.005 “
(per sheet) (0.05 -0.15 mm) (0.08 -0.13mm)
■Notes on the suitability of documents:
●Allow ink andlor glue dry completely before inserting adocument.
●Do not transmit curled or folded documents.
●Make sure that any paper clips, staples or pins have been removed from documents.
●When using carbon paper, waxed paper or vinyl-coated paper, always use acarrier sheet.
●Never use documents thicker than 0.006” (0.15mm), metal sheets or cloth. Use aphotocopy instead.
1) Transmission Mechanism .
When, in Fig. 4-1, the document is inserted, the sensor 1detects the document and the transmission motor starts to
rotate. The ADF roller is rotated by the rotation of the transmission motor and the document isfed up to the platen 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, abroken 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 completing the printing of its page.
—12—

Sensor 2
\. Platen Roller
Fig. 4-1
\
\M5pf2~h41 PHI \P~”ng \ReceptionMotor
Fig. 4-2
Power Switch Telephone Line Jack
~—
Ringer
Volume Switch
Monitor
Volume Switch
\r
tvt4PCB
TransmissionMotor Reception Motor /
rM5 PCB D
Ml PCB
AUTO/MANU Switch
CONTRASTSwitch
MODESwitch
Fig. 4-3
--

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.
(6) Real Time Clock
(7) Stepping Motor Control
(8) Thermal head Control
(9) 1/0 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 ainterface 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 aNetwork 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 atelephone circuit PCB and the following functions are included.
-Speech network circuit
-Line monitor function
-Ringing generation
5. M-5 PCB
This is apower supply PCB using switching regulation method, and supplies
+5Vdc, +12Vdc, -12Vdc, +24Vdc. Also this PCB contains motor driving circuit
for transmission and reception motor.
6. LCD display
This LCD display consists of 16 digits x1line 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 aspeaker used for line monitor. Aswitch for monitor volume control is
mounted on M-4 PCB.
10.Ringer Buzzer
This is abuzzer to generate ringing. Aswitch for volume control is mounted
on M-4 PCB.
11.Handset
This handset consists of amicrophone and a speaker.
—15—

5-2. Trouble shooting for mechanical Parts
When trouble occurs, thoroughly confirm the cause of the trouble and carry out appropriate repair.
SYMPTOMS CAUSE COUNTERMEASURE
The document, even when inserted, is 1. The platen roller is not rotating 1. Press the green release lever, then
not fed. properly. insert the document again.
2. Dirt on the ADF roller. 2. Clean the ADF roller. (See page 9)
3. The sensor 1is not adjusted prop- 3. Adjust the level of the sensor 1.
erly or out of operation. Confirm the operation of the sensor
~Seepage 13)
The documents are fed over-lapping. Dirl on the rubber sheet Clean the rubber sheet (See page 9)
(More than one sheet are fed at atime)
The document is not fed straight 1. The original guide is not adjusted 1. Adjust the original guide along by
along by the original. the original.
2. Dirt on the platen roller. 2. Clean the platen roller.
(See page 9)
3. Pressure for the Contact Image 3. Adjust the pressure re-positioning
Sensor is not equal in the both the Contact Image Sensor.
sides. (See page 25)
When copying or transmitting the The exceeding part of the original on Clean the platen roller. (See page 13)
exceeding pari of the original is the platen roller is dirty
printed as blurred black if less than A4
or letter size of original is used.
When copying, white vertical line 1. There is diri sticking to the thermal 1. Clean the thermal head.
appears that is not on the original. head. (See page 13)
2. The heating element of the thermal 2. Replace the thermal head.
head is broken. (See page 25)
41though the recording paper is set 1. The recording paper sensor is not 1. Adjust the level of the sensor 1.
woperly, “CHECK PAPER ROLL” adjusted properly or out of oper- Confirm the operation of the sensor
;’PAPIER PRUEFEN”) is indicated on ation. 1. (See page 13)
:he LCD. 2. The recording paper cover is not 2. Completely close the cover.
completely closed.
3. The switch for recording paper 3. Replace the switch for the re-
cover is out of operation. cording paper cover. (See page 45)
_
—16-

5-3. Trouble shooting for circuitty
(1)
(2)
(3)
No displayon LCD tiiht when Powerswitchistumd ON
Check the connection of CN1 (M-1) and CN51 (M-5).
IYES
ICheck Pin No. 1of CN1 (M-l), +5V ?1~~1 Check power suppIy (M-5).
II I
IYES
Check the connection of CN2-1 through 2-3 (M-1) and
CN21 through 23 (M-2).
IYES
Check the connection of CN24 (M-2) and LCD connector.
NO
Check the Main PCB (M-l). Check LCD.
Key-in is impossible from the operation panet
Check the same as described (l).
IOK NO
Check the connection of CN2-2 and 2-3 (M-2). Check the Main PCB (M-l).
1YES
Check the operation panel PCB (M-2).
LCD indicates “CHECK PAPER ROLL” (“PAPIER PRUEFEN”)
Is recording paper set properly? I
IYES
Is the Receiving cover closed securely? I
1YES
Check the connection of CN8 (M-l).
~YES
Is /PAP (CN8-pin No. 8) lessthan 0.8V ?
YES
~‘0 ‘~
Check the M-1 PCB. Check the sensor for the recording
paper.
—17—

IINO II
(4) No motor rotates when the original is inserted
IIS/S1 (CN7-pin No. 2) lessthan 0.8V ?I—FI Check the connection of CN7 (M-l). [
IIII
1
IOK
v
III1
Check the connectionof CN1 (M-1) through CN51 (M-5). Check the S1 sensor.
I
NO
Is /RMO1 -04 (CN1 Pin No. 12- 15) OK? ●Check the M-1 PCB.
I
1YES
II
ICheck the connection of CN53. I
IYES
Check the Power supply PCB (M-5).
IOK
Check the TransmissionMotor.
w
(5) No copy is made NO
Isthe Head Test OK? (Sac page 31.) Check the printingcircuit.
IYES
Check the Reading circuit.
(a) Printing Circuit (To be confirmed by the Head Test)
Check the connection of CN5 (M-1) through CN56
(Thermal Head).
1OK NO
Does +24V appear at CN1, Pin No. 4?●Check the Power Supply PCB (M-5).
IIII
IYES NO
Does HVON (CN1, Pin No. 7) work properly (High at
printing)? IYES
IINO
Do the signals(DATA,/lATCH, CLK (CN5, Pin No. 2- 4) ●
appear normally? IYES I
NO
Do the signals (/ EN1 -4 (CN5, Pin No. 5- 8))appear ➤Check the M-1 PCB.
normally?
-
IYES
Check the Thermal Head. I
-
—18—