Sharp FO-77 User manual

FO-77U
UX-66U
Illustration: FO-77
No. 00ZFO77U//SME
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ............................................ 1-1
[2] Operation panel......................................... 1-2
[3] Transmittable documents .......................... 1-3
[4] Installation ................................................. 1-4
[5] Quick reference guide ............................... 1-9
[6] Quick setup guide (UX-66U only)............ 1-10
CHAPTER 2. ADJUSTMENTS
[1] Adjustments .............................................. 2-1
[2] Diagnostics and service soft switch .......... 2-2
[3] Troubleshooting ...................................... 2-18
[4] Error code table....................................... 2-19
CHAPTER 3. MECHANISM BLOCKS
[1] General description ................................... 3-1
[2] Disassembly and assembly
procedures ....................................... 3-3
CHAPTER 4. DIAGRAMS
[1] Block diagram ............................................4-1
[2] Wiring diagram .......................................... 4-2
[3] Point-to-point diagram ............................... 4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description ..................................... 5-1
[2] Circuit description of control PWB ............ 5-2
[3] Circuit description of TEL/LIU PWB .......... 5-9
[4] Circuit description of
power supply PWB............................5-12
[5] Circuit description of CIS unit...................5-12
CHAPTER 6. CIRCUIT SCHEMATICS AND
PARTS LAYOUT
[1] Control PWB circuit ................................... 6-1
[2] TEL/LIU PWB circuit.................................. 6-9
[3] Power supply PWB circuit ...................... 6-13
[4] Operation panel PWB circuit ................... 6-15
CHAPTER 7. OPERATION FLOWCHART
[1] Protocol ..................................................... 7-1
[2] Power on sequence................................... 7-2
CHAPTER 8. OTHERS
[1] Service tools ............................................. 8-1
[2] IC signal name .......................................... 8-4
PARTS GUIDE
CONTENTS
FACSIMILE
FO-77
MODEL UX-66
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
SERVICE MANUAL

FO-77U
UX-66U
(Danish) ADVARSEL !
Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandoren.
(English) Caution !
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the equipment manufacturer.
Discard used batteries according to manufacturer’s
instructions.
(Finnish) VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan
tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden
mukaisesti.
(French) ATTENTION
Il y a danger d’explosion s’ il y a remplacement incorrect
de la batterie. Remplacer uniquement avec une batterie du
même type ou d’un type recommandé par le constructeur.
Mettre au rébut les batteries usagées conformément aux
instructions du fabricant.
(Swedish) VARNING
Explosionsfare vid felaktigt batteribyte.
Använd samma batterityp eller en ekvivalent
typ som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens
instruktion.
(German) Achtung
Explosionsgefahr beiVerwendung inkorrekter Batterien.
Als Ersatzbatterien dürfen nur Batterien vom gleichen Typ oder
vom Hersteller empfohlene Batterien verwendet werden.
Entsorgung der gebrauchten Batterien nur nach den vom
Hersteller angegebenen Anweisungen.
CAUTION FOR BATTERY REPLACEMENT

1 – 1
FO-77U
UX-66U
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications
Automatic dialing: Rapid Key Dialing: 5 numbers
Speed Dialing: 35 numbers
Thermal paper: Initial starter roll (included with machine):
32 ft. (10 m)
Recommended replacement roll:
FO-20PRw, 98 ft. (30m), 0.5" core
Paper cutting method: Automatic cutter
Modem speed: 9600 bps with automatic fallback to lower
speeds
Transmission time* : Approx. 15 seconds
Resolution: Horizontal: 203 pels/inch (8 dots/mm)
Vertical:
Standard: 98 lines/inch (3.85 lines/mm)
Fine/Halftone:
196 lines/inch (7.7 lines/mm)
Super fine:
391 lines/inch (15.4 lines/mm)
Automatic document feeder: 5 pages max. (20 lb paper)
Halftone (grayscale): 64 levels
Display: 16-digit LCD display
Compression scheme: MR, MH, Sharp (H2)
Applicable telephone line: Public switched telephone network
Compatibility: ITU-T (CCITT) G3 mode
Input document size: Automatic feeding:
Width: 5.8 to 8.5" (148 to 216 mm)
Length: 5.5 to 11" (140 to 279 mm)
Manual feeding:
Width: 5.8 to 8.5" (148 to 216 mm)
Length: 5.5 to 23.6" (140 to 600 mm)
Effective scanning width: 8.3" (210 mm) max.
Effective printing width: 8.3" (210 mm) max.
Contrast control: Automatic/Dark selectable
Reception modes: Fax/Tel
Copy function: Yes
Telephone function: Yes (cannot be used if power fails)
Power requirements: 120 V AC, 60 Hz
Operating temperature: 41 - 95°F (5 - 35°C)
Humidity: Maximum: 85 % RH
Power consumption: Standby: 3.6 W
Maximum: 100 W
Dimensions: Width: 12.0" (304 mm)
Depth: 9.3" (236 mm)
Height: 4.8" (122 mm)
Weight: Approx.5.7 lbs. (2.6 kg)
* BasedonITU-T(CCITT)TestChart#1atstandard resolution in Sharp
special mode, excluding time for protocol signals (i.e., ITU-T phase C
time only).
Note: The facsimile machine is Year 2000 compliant.
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for procduct
improvement without prior notice.The performance specifications figures indicated are nominal values of production units.There may be some
deviation from these values in individual units.

1 – 2
FO-77U
UX-66U
[2] Operation panel
TEL FAX
RECEPTION
MODE
RESOLUTIONFUNCTION
DOWN VOLUME UP
A.M.
SPEED DIAL
REDIAL
SPEAKER
01 02
03 04
05 06
07 08
09 10/POLL
ABC DEF
JKL MNO
GHI
TUV WXYZ
PQRS
START
STOP
COPY/HELP
HOLD/SEARCH
TEL FAX
GHI
PQRS
JKL
ABC DEF
MNO
WXYZ
TUV
ABCDE
STOP
COPY/
HELP
START
FUNCTION
VOLUME
SPEED
DIAL
REDIAL
HOLD/
SEARCH
SPEAKER
RESOLUTION/
RECEPTION MODE
123
65
4
789
0
2
8
1 4 5 62 3 7
11109 12 1314
1. Rapid Dial keys
Press one of these keys to dial a fax or voice number
automatically.
2. Display
This displays messages and prompts during operation and
programming.
3. FUNCTION key
Press this key to select various special functions.
4. VOLUME keys
Press this keys to adjust the volume of the speaker when
the SPEAKER key has been pressed, the volume of the
handset when the handset is lifted, or the volume of the
ringer at all other times.
5. Number keys
Use these keys to dial numbers, and enter numbers and
letters storing auto-dial numbers.
6. SPEED DIAL key
Press this key to dial a fax or voice number using an
abbreviated 2-digit Speed Dial number.
7. REDIAL key
Press this key to automatically redial the last number
dialed.
8. START key
Press this key to begin transmission when using Speed
Dialing, Direct Keypad Dialing, or Normal Dialing.
9. STOP key
Press this key to cancel operation before it is completed.
10. COPY/HELP key
When a document is in the feeder, press this key to make
a copy of a document. At any other time, press this key to
print out the Help List, a quick reference guide to the
opeation of your fax machine.
11. RESOLUTION/RECEPTION MODE key
When a document is in the feeder, press this key to adjust
the resolution for faxing or copying. At any other time,
press this key to select the reception mode (an arrow in the
display will point to the currently selected reception mode).
12. SPEAKER key
Press this key to listen the line and fax tones through the
speaker when faxing a document.
Note: This is not a speakerphone. You must pick up the
handset to talk with the other party.
13. HOLD/SEARCH key
Press this key to search for an auto-dial number,
or, during a phone conversation, press this key to put the
other party on hold.
14. Panel release
Grasp this finger hold and pull toward you to open the
operation panel.

1 –3
FO-77U
UX-66U
[3] Transmittable documents
1. Document Sizes
* With special sizes, only one sheet can be fed into the machine at a
time. Insert next page into feeder as current page is being scanned.
2. Paper Thickness & Weight
Normal size width 5.8" –8.5" (148 –216 mm)
length 5.5" –11" (140 –279 mm)
5. Automatic Document Feeder Capacity
Number of pages that can be placed into the feeder at anytime is as
follows:
Normal size: max. ADF 5 sheets
Special size: single sheet only (manual feed)
NOTES: •Whenyou need to sendorcopymore pages than the feeder
limit, place additional pages in feeder when last page in
feeder is being scanned.
•Place additional pages carefully and gently in feeder.
If force is used, double-feeding or a document jam may
result.
6. Readable Width & Length
The readable width and length of a document are slightly smaller than
the actual document size.
Note that characters or graphics outside the effective document scan-
ning range will not be read.
•Readable width
8.3" (210mm), max.
•Readable length
This is the length of the document sent minus 0.2" (5mm) from the top
and bottom edges.
Use document carrier sheet for smaller documents.
Readable width
(Min.) (Max.)
Letter
size
(Max.)
140mm
279mm 600mm
148mm 216mm
[
Normal size
]
216mm
[
Special size
]
3. Document Types
•Normal paper
Documents handwritten in pencil (No. 2 lead or softer), fountain
pen, ball-point pen, or felt-tipped pen can be transmitted.
Documents of normal contrast duplicated by a copying machine
can also be transmitted.
•Diazo copy (blue print)
Diazo copy documents of a normal contrast may be transmitted.
•Carbon copy
A carbon copy may be transmitted if its contrast is normal.
4. Cautions on Transmitting Documents
•Documentswritten in yellow, greenishyellow,orlightblueinkcannot
be transmitted.
•Ink, glue, and correcting fluid on documents must be dry before
the documents can be transmitted.
•All clips, staples and pins must be removed from documents be-
fore transmission.
•Patched (taped) documents should be copied first on a copier and
then the copies used for transmission.
•All documents should be fanned before insertion into the feeder to
prevent possible double feeds.
0.2"(5mm)
0.2"
(
5mm
)
Readable length
Paper size 148mm x 140mm ~
A4 (210mm x 297mm), Letter (216mm x 279mm)
4x6 series
(788mm x 1091mm x
1000mm sheets)
Square
meter series
Minimum Maximum Minimum Maximum
Feeder capacity 5 sheets, max.
Paper thickness (ref.) 0.06mm 0.09mm 0.06mm 0.09mm
Paper weight 45kg 69.2kg 52g/m280g/m2

1 –4
FO-77U
UX-66U
7. Use of Document Carrier Sheet
A document carrier sheet must be used for the following documents.
•Those with tears.
•Those smaller than size 5.8" (W) x 5.5" (L) (148mm (W) x 140mm
(L)).
•Carbon-backed documents
NOTE: To transmit a carbon-backed document, insert a white sheet of
paper between the carbon back of the document and the docu-
ment carrier.
•Those containing an easily separable writing substance (e.g., trac-
ing paper written on with a soft, heavy lead pencil).
NOTES: •When using the document carrier, carefully read the in-
structions written on the back.
•If the document carrier is dirty, clean it with a soft, moist
cloth, and then dry it before using for transmission.
•Do not place more than one document in the carrier at a
time.
[4] Installation
1. Site selection
Take the following points into consideration when selecting a site for this
model.
ENVIRONMENT
•The machine must be installed on a level surface.
•Keep the machine away from air conditioners, heaters, direct sun-
light, and dust.
•Provide easy access to the front, back, and sides of the machine. In
particular, keep the area in front of the machine clear, or the original
document may jam as it comes out after scanning.
•The temperature should be between 5°and 35°C.
•The humidity should be between 30% and 85% (without conden-
sation).
ELECTRICITY
AC 120V, 60Hz, grounded (3-prong) AC outlet is required.
Caution!
•Connection to a power source other than that specified will cause
damage to the equipment and is not covered under the warranty.
•Ifyour area experiences a high incidence of lightningorpowersurges,
we recommend that you install a surge protector for the power and
telephonelines. Surge protectorscanbepurchased at mosttelephone
specialty stores.
If the machine is moved from a cold to a warm place...
Condensation may from on the reading glass if machine is moved from
a cold to a warm place, this will prevent proper scanning of documents
for transmission.Turn on the power and wait approximately 2 hours be-
fore using machine.
Direction of insertion
Make print straight
across paper
E.G.
Place the document
carrier in the document
feeder with the clear film
side down
Make sure the handset cord
goes into the jack marked
witha handset symbol onthe
side of the machine!
Use the handset to make ordinary
phone calls, or to transmit and receive
faxes manually.
TELEPHONE JACK
A standard RJ11C telephone jack must be located near the machine.
This is the telephone jack commonly used in most homes and offices.
•Plugging the fax machine into a jack which is not an RJ11C jack may
result in damage to the machine or your telephone system. If you do
not know what kind of jack you have, or need to have one installed,
contact the telephone company.
2. Assembly and connections
1 Plug the power cord into a 120 V, 60 Hz, grounded (3-prong) AC
outlet.
•Caution: Do not plug the power cord into any other kind of outlet.
This will damage the machine and is not covered under the war-
ranty.
•The machine does not have a power on/off switch, so the power is
turned on and off by simply plugging in or unplugging the power
cord.
2 Connect the handset as shown and place it on the handset rest.
♦The ends of the handset cord are identical, so they will go into
either jack.
3 Attach the original document support as shown below.

1 –5
FO-77U
UX-66U
4 Insert one end of the line cord into the jack on the back of the ma-
chinemarkedTEL.LINE. Insertthe other end into a standard(RJ11C)
single-line wall telephone jack.
2 Flip up the front paper guide.
3 Remove the tape and packing paper from the cutter unit.
TEL.
LINE
Note: The fax machine is set for touch-tone dialing. If you are on a
pulse dial (rotary) line, you must set the fax machine for pulse dialing.
Press the keys on the operation panel as follows:
3. Press the STOP key to return to the date
and time display.
3. Removing the packing paper
1 Grasp the finger hold and pull up to open the operation panel.
DIALMODE
FUNCTION
4
2. Press 1to select tone (touch-tone)
dialing, or 2to select pulse (rotary)
dialing.
12
or
TONE PULSE
STOP
1. Press these keys:
The display will show:
4 Flip down the front paper guide and then close the operation panel.

1 –6
FO-77U
UX-66U
4. Loading the thermal paper (FO-20PRw)
•Your fax machine prints incoming faxes on a special kind of paper
called thermal paper.
•Thefaxmachine’s print head creates textand images by applying
heat to the thermal paper.
1 Grasp the finger hold as shown and pull up to open the operation
panel.
2 Flip up the front paper guide.
3 Unwrap the roll of thermal paper and place it in the compartment.
♦ Important: The roll must be placed so the leading edge of the
paper unrolls as shown.(The paper is only coated on one side for
printing. If the roll is placed backwards, the paper will come out
blank after printing.)
4 Insert the leading edge of the paper into the slot as shown.Continue
to push the paper through the slot until it comes out the opening in
the front of the machine.
5 Make sure the paper comes out straight, and then flip down the pa-
per guide.
1
2
Press the knob to make sure the
front side of the metal guide is down.
YES NO!
6 Close the operation panel, making sure it clicks into place.
• A short length of the paper will be cut off.
Click!

1 –7
FO-77U
UX-66U
5. Clearing a jammed document
If the original document doesn’t feed properly during transmission or
copying,or DOCUMENT JAMMEDappearsin the display,first try press-
ing the START key.If the document doesn’t feed out, open the operation
panel and remove it.
Important:
Do not try to remove a document without first releasing it as explained
below.
This may damage the feeder mechanism.
1 Grasp the finger hold and pull up to open the operation panel.
2 Flip up the green levers on each side of the white roller.
3 Remove the document.
4 Flip down the green levers on each side of the white roller.
5 Close the operation panel, making sure it clicks into place.
• Press down on both front corners of the panel to make sure it
clicks into place.

1 –8
FO-77U
UX-66U
6. Clearing jammed paper
If the thermal paper jams, PAPER JAMMED will appear in the display.
Follow the steps below to clear the jam.
1 Grasp the finger hold and pull up to open the operation panel.
2 Flip up the front paper guide.
4 Cut off the wrinkled part of the paper.
3 Remove the paper roll.
• Remove any cut pieces of paper from the paper compartment.
1
2
Press the knob to make sure the
front side of the metal guide is down.
5 Reload the paper.
• Jammed paper is often caused by improper loading. Be sure to
carefully follow the instructions for paper loading given in Loading
the Thermal Paper.

1 –9
FO-77U
UX-66U
[5] Quick reference guide
ENTERINGYOUR NAME AND NUMBER
1. Press:
FUNCTION
3
Display shows: OWN NUMBER SET
2. Press:
3. Enter your fax number (max.of 20 digits) by pressing the number keys.
•To insert a space between digits, press the # key.
•If you make a mistake, press the SPEED DIAL key to backspace and clear the
mistake.
4. Press:
5. Enter your name by pressing the appropriate number keys as shown below.
•To entertwoletters in succession that requirethesamekey,pressthe SPEAKER
key after entering the first letter.
SENDING FAXES
FAX
TEL
FAX
TEL
NOV 05 10:30
NOV 05 10:30
RESOLUTION/
RECEPTION MODE
Beep
START
RECEIVING
START
Place your document (up to 5 pages)
face down in the document feeder.
Normal Dialing
1. Lift the handset or press
2. Dial the fax number.
3. Wait for the reception tone (if a person answers, ask them to press their Start
key).
4. Press:
Rapid Key Dialing
Press the appropriate Rapid Key.Transmission will begin automatically.
Speed Dialing
1. Press:
2. Enter 2-digit Speed Dial number.
3. Press:
RECEIVING FAXES
Press the RESOLUTION/RECEPTION MODE key until the arrow in the display
points to the desired reception mode (make sure the document feeder is empty).
SPEAKER
SPEED
DIAL
FAX mode:The fax machine automatically answers on four rings and receives the
incoming document.
TEL mode:
SETTINGTHE DISPLAY LANGUAGE
1. Press:
2. Press:
3. Press the # key or key until the desired language appears in the display.
4. Press:
5. Press:
FUNCTION
4
STOP
START
START
START
START
START
SETTINGTHE DATE ANDTIME
1. Press:
Display shows: DATE &TIME SET
2. Press:
3. Enter two digits for the Month (01 through 12).
4. Enter two digits for the Day (01 through 31).
5. Enter four digits for theYear (Ex: 1999).
6. Enter two digits for the Hour (01 through 12).
7. Enter two digits for the Minute (00 through 59).
8. Press the key for A.M. or the # key for P.M.
9.When finished, press:
STORING AND CLEARING AUTO DIAL NUMBERS
1. Press:
Display shows: FAX/TEL # MODE
2. Press 1to store a number or 2to clear a number.
3. Enter a 2-digit Speed Dial number (from 01 to 05 for Rapid Key Dialing, or 06 to
40 for Speed Dialing) (If you are clearing a number, go to Step 7.)
4. Enter the full telephone/fax number.
5. Press:
6. Enter the name of the location by pressing number keys (Refer to the letter
entry table in
ENTERINGYOUR NAME AND NUMBER .)
7. Press:
A =
B =
C =
D =
E =
F =
G =
H =
I =
J =
K =
L =
M =
N =
O =
P =
Q =
R =
S =
T =
U =
V =
W =
X =
Y =
Z =
SPACE =
•To change case, press the REDIAL key.
Press # or to scroll through symbols and special characters.
6. When finished, press:
START STOP
FUNCTION
3
FUNCTION
3
START
START STOP
START
START STOP

1 –10
FO-77U
UX-66U
[6] Quick setup guide (UX-66U only)
2
Connect the handset
and place it on the
handset rest.
QUICK SETUP GUIDE
1
Remove the packing paper.
3
Plug the power cord into
a 120 v, 60Hz, grounded
AC (3-prong) outlet.
4
Connect the telephone
line cord to the TEL. LINE
jack and a wall telephone
jack.
5
Attach the document
support.
Load the thermal paper.
1. Grasp the finger hold and pull up
to open the operation panel. 3. Unwrap the roll of thermal paper
and place it in the compartment.
YES NO!
5. Make sure the paper comes out
straight, and then flip down the
paper guide.
2. Flip up the front paper guide.
6. Close the operation panel,
making sure it clicks into
place.
6
(TCADZ2869XHZZ)
Note: Make sure that the area
in front of the machine is clear.
4. Insert the leading edge of the paper
into the slot. Push the paper through
until it comes out the opening on the
front of the machine.
1. Grasp the finger hold and pull
up to open the operation panel. 2. Flip up the front paper guide.
3. Remove the tape
and packing paper. 4. Flip down the front paper guide
and close the operation panel.
TEL.
LINE
Note: To enter your name and fax number and set the date
and time so that they appear on the automatic cover sheet,
see pages 19 - 25 of your operation manual.
UX-66 FAX
Press the knob to make
sure the front side of the
metal guide is down.