sharp UXB20U, UX-B20, UX-B25 Service Manual

UX-B20U/UX-B20C/B25C

SERVICE MANUAL

No. 00ZUXB20U/SME

FACSIMILE

UX-B20

Illustration: UX-B20U

CHAPTER 1. GENERAL DESCRIPTION

[1] Specifications ................................................. 1-1

[2] Operation panel.............................................. 1-2

[3] Transmittable documents ............................... 1-3

[4] Installation ...................................................... 1-4

[5] Quick setup guide ........................................ 1-10

[6] Quick reference guide.................................. 1-11

CHAPTER 2. ADJUSTMENTS

[1] Adjustments ................................................... 2-1

[2] Diagnostics and service soft switch ............... 2-2

[3] Troubleshooting ........................................... 2-23

[4] Error code table............................................ 2-24

CHAPTER 3. MECHANISM BLOCKS

[1] General description ........................................ 3-1

[2] Ink jet printer .................................................. 3-3

[3] Disassembly and assembly procedures......... 3-6

CHAPTER 4. DIAGRAMS

[1] Block diagram ................................................ 4-1

[2] Wiring diagram ............................................... 4-2

[3] Point-to-point diagram.................................... 4-3

MODEL

UX-B20 U U.S.A. UX-B20/B25 C Canada

CONTENTS

[2] Circuit description of control PWB ................5-2

[3] Circuit description of LIU PWB .................... 5-15

[4] Circuit description of power supply PWB......5-17

[5] Circuit description of CIS unit ......................5-17

CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT

[1] Control PWB circuit .......................................6-1

[2] LIU PWB circuit ........................................... 6-11

[3] Power Supply PWB circuit...........................6-16

[4] Operation Panel PWB circuit.......................6-18

[5] Ink PWB circuit ............................................6-21

CHAPTER 7. OPERATION FLOWCHART

[1] Protocol .........................................................7-1

[2] Power on sequence.......................................7-2

CHAPTER 8. OTHER

[1] Service tools ..................................................8-1

[2] Changing the record paper size ....................8-4

[3] Rewriting version up the FLASH ROM ..........8-5

Parts Guide

UX-B25

MODEL SELECTION CODE DESTINATION

CHAPTER 5. CIRCUIT DESCRIPTION

[1] Circuit description........................................... 5-1

Parts marked with " " are 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

SHARP CORPORATION

for after sales service only. The contents are subject to change without notice.

UX-B20U/UX-B20C/B25C

– i –

FAXUX-B20U/UX-B20C/B25CService ManualService ManualMarketE

CHAPTER 1. GENERAL DESCRIPTION

[1] Specifications

UX-B20U/UX-B20C/B25C

Print cartridge yield*: (at 4% coverage**)

Paper tray capacity:

Recording system: Print resolution: Effective printing width: Memory size*: Modem speed:

Transmission time*: Compatibility: Compression scheme: Automatic dialing: Telephone function: Applicable telephone line: Reception modes: Automatic document feeder:

Initial cartridge Quality mode OFF: Approx. 300 letter pages Quality mode ON: Approx. 200 letter pages Replacement cartridge: SHARP

UX-C70B

Quality mode OFF: Approx. 600 letter pages Quality mode ON: Approx. 400 letter pages Letter: Approx. 100 sheets (20-lb.copier paper at room temperature; maximum stack height should not be higher than the line on the tray) Legal: 10 sheets Recommended paper weight: 20-lb. Copy Bond Thermal inkjet 600 x 600 dpi

8.0" (203 mm) max. 448 KB (approx. 24 average pages) 9,600 bps with auto fallback to lower speeds Approx. 15 seconds ITU-T (CCITT) G3 mode MR, MH, MMR 30 numbers Yes (cannot be used if power fails) Public switched telephone network TEL/FAX Letter/A4: 10 sheets max. (20 lb. paper) Legal: 5 sheets max.

Input document size:

Effective scanning width: Scanning resolution:

Halftone (grayscale): Contrast control: Copy function: Display: Power requirements: Power consumption:

Operating temperature: Humidity: Dimensions (without attachments):

Weight (without attachments):

*Quality mode is initially turned on. To turn off Quality mode. **Based on Sharp Standard Chart at standard resolution, excluding time for protocol signals (i.e., ITU-T phase C time only).

Automatic feeding:

Width: 5.8 to 8.5" (148 to 216 mm) Length(10 sheets): 5.5 to 11" (140 to 279 mm) Length(5 sheets): 5.5 to 14" (140 to 356 mm)

Manual feeding:

Width: 5.8 to 8.5" (148 to 216 mm) Length: 5.5 to 23.6" (140 to 600 mm)

8.3" (210 mm) max. Horizontal: 203 pixels/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) 64 levels Automatic/Dark selectable Single / Multi (99 copies/page) 16-digit LCD display 120 V AC, 60 Hz Stand-by: 4.5 W Maximum: 30 W 60 - 90°F (15 - 32°C) 25 - 80 % RH Width: 13.9" (354 mm) Depth: 9.7" (247 mm) Height: 5.4" (138 mm)

Approx. 7.0 lbs. (3.2 kg)

As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specifications figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

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UX-B20U/UX-B20C/B25C

[2] Operation panel

RESOLUTION/

8 9

RECEPTION

INK

Illustration: UX-B20U

1. Display

This displays messages and prompts to help you operate the machine.

2. FLASH key

This key is used for Call Waiting and other special service that requires subscription from your phone company. Your phone company will provide you with details on how to use the key.

3. 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).

4. INK key

Press this key before installing or replacing the print cartridge to move the print cartridge holder to the replacement position.

5. Arrow keys

Use these keys to scroll through and select setting, and to search for auto-dial numbers.

6. FUNCTION key

Press this key to followed by the arrow keys select special functions and settings.

7. Number key

Use these keys to dial numbers, and enter numbers and letters when storing auto-dial numbers.

8. POLL key

Press this key after dialing another fax machine to receive a document (previously loaded in the other machine's feeder) without assistance from the operator of the other machine.

9. HOLD key

Press this key to put the other party on hold during a phone conversation.

10. SPEAKER key

Press this key to listen to the line and fax tones through the speaker when faxing a document.

11. STOP key

Press this key to cancel operations before they are completed.

12. START/MEMORY key

Press this key after dialing to begin fax transmission. Press this key before dialing to send a fax through memory. The key can also be pressed in the date and time display to show the percentage of memory currently used.

13. 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 operation of your fax machine.

1 – 2

[3] Transmittable documents

1. Document Sizes

Normal size Width 148 - 216 mm

Length 140 - 279 mm

(Max.)

UX-B20U/UX-B20C/B25C

5. Automatic Document Feeder Capacity

Number of pages that can be placed into the feeder at anytime is as follows:

Normal size: max. ADF 10 pages

Special size: single sheet only (manual feed) NOTE: • When you need to send or copy more 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.

(Max.)

(Min.)

140mm

148mm 216mm

Use document carrier sheet for smaller documents.

• 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.

Letter size

[Normal size]

279mm

216mm

[Special size]

600m

2. Paper Thickness & Weight

10 sheets 1sheet(Manual)

Paper weight 70 kg

Paper thickness (ref.) 0.1 mm 0.1 mm ~ 0.18mm Paper size LGL (216 mm x 355.6 mm)

Feeder capacity A4/LTR: 10 sheets max.

80 g/m

A4 (210 mm x 297 mm) LTR (216 mm x 279 mm)

LGL : 1 sheets max.

70 kg ~ 135 kg

52 g/m

~ 157g/m

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.

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 scanning range will not be read.

• Readable width

8.3” (210mm), max

Readable widt

• Readable length

This is the length of the document sent minus 0.16” (4mm) from the top and bottom edges.

0.16"(4mm)

Readable length

0.16"(4mm)

4. Cautions on Transmitting Documents

• Documents written in yellow, greenish yellow, or light blue ink cannot 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 before 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.

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UX-B20U/UX-B20C/B25C

[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 sunlight, 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 60 - 90°F (15 - 32°C).

• The humidity should be between 25% and 80% (without condensation).

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.

• If your area experiences a high incidence of lightning or power surges, we recommend that you install a surge protector for the power and telephone lines. Surge protectors can be purchased at most telephone specialty stores.

If the machine is moved from a cold to a warm place...

Condensation may form 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 before using machine.

TELEPHONE JACK

A standard RJ-11C single-line wall 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 RJ-11C single-line wall telephone 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) Open the print compartment cover.

3) Remove the tape.

4) Close the print compartment cover and then the operation panel.

2. Removing the packing tape

1) Open the operation panel.

3. Connecting the handset

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.

• Make sure the handset cord goes into the jack marked with a handset symbol on the side of the machine!

• Use the handset to make ordinary phone calls, or to transmit and receive faxes manually.

1 – 4

4. Attaching the paper tray

1) Attach the paper tray.

UX-B20U/UX-B20C/B25C

2) Insert the stack of paper into the tray, PRINT SIDE UP.

• If paper remains in the tray, take it out and combine it into a single stack with the new paper.

• Be sure to load the paper so that printing takes place on the print side of the paper. Printing on the reverse side may result in poor print quality.

• GENTLY LOAD PAPER INTO THE PAPER TRAY.

• DO NOT FORCE IT DOWN INTO THE FEED SLOT.

The stack should not be higher than this line.

2) Attach the paper tray extension.

Click!

5. Loading printing paper

You can load letter or legal size paper in the paper tray. Recommended paper weight is 20-lb. Copy Bond. The maximum number of sheets is as follows:

Letter size: Approx. 100 sheets (20-lb. copier paper at room temperature; maximum stack height should not be higher than the line on the tray)

Legal size: 10 sheets (20-lb. copier paper at room temperature)

1) Fan the paper, and then tap the edge against a flat surface to even the stack. Make sure the stack edges are even.

Note: Do not use paper that has already been printed on, or paper that is curled.

6. Connecting the power cord

Plug the power cord into a 120 V, 60 Hz, grounded AC (3-prong) 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 warranty.

• Make sure you have removed all of the packing tape before plugging in the power cord. Plugging in the power cord without doing so may damage the machine.

• 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.

• “CHECK CARTRIDGE” normally appears in the display the first time you plug in the machine. This message appears until you install the print cartridge.

Note: If you area experiences a high incidence of lightning or power surges, we recommend that you install surge protectors for the power and telephone lines. Surge protectors can be purchased at most telephone specialty stores.

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UX-B20U/UX-B20C/B25C

Gold contact area

Cable

7. Installing the print cartridge

Follow these steps to install or replace the print cartridge.

• When replacing the print cartridge, be sure to use a SHARP UX- C70B cartridge.

Print cartridge yield (at 4% coverage)

Initial cartridge

Quality mode OFF: Quality mode ON

Replacement cartridge (SHARP UX-C70B)

Quality mode OFF: Quality mode ON

Quality mode is initially turned on. To turn off Quality mode, see page 1-8.

Caution! Do not open the print compartment cover or insert your hand in the machine while it is printing.

Note: Keep print cartridges sealed in their packages until you are ready to install them. It is recommended that you do not use a cartridge that has been left unused for a long time after opening, as the print quality may be considerably degraded.

• Make sure the machine’s power cord is plugged in and paper is laded before installing or replacing the print cartridge.

• If a document is inserted in the feeder, remove the document before installing or replacing the print cartridge.

Approx. 300 letter pages

: Approx. 200 letter pages

Approx. 600 letter pages

: Approx. 400 letter pages

3) Open the print compartment cover.

4) Remove only the tape from the new cartridge.

• Important: Make sure you remove all of the tape.

• CAUTION! DO NOT touch the gold contact area on the cartridge.

If PRINTER ERROR or PRINTER ERROR/CHECK PAPER appears... In the event that the display shows either of the above messages, you must clear the error before installing the print cartridge. The error can usually be cleared by pressing

, or if a paper jam has occurred, by removing the paper jam.

1) Press .

INK

• Make sure the handset is on its cradle. If the handset is not on

the cradle, pressing will have no effect.

INK

• The print cartridge holder moves to the cartridge replacement position.

Display:

REPLACE INK &

PRESS INK KEY

2) Open the operation panel.

5) Make sure the cartridge holder has moved slightly away from the right side of the compartment, and then pull the green lever and open the cartridge holder cover.

• If you are replacing the cartridge, remove the old cartridge. If

you are going to use the old cartridge again, place it in an airtight container.

• CAUTION! DO NOT touch the contact area inside the cartridge

holder, or pull on the cable that is connected to the cartridge holder.

Note: if the print compartment cover is left open for approximately 30 minutes with a cartridge installed, the cartridge will automatically return to its home position. To make the cartridge return to the cartridge

replacement position when this has happened, press .

INK

1 – 6

6) Insert the new print cartridge into the cartridge holder.

1=NEW, 2=OLD

CHANGE CARTRIDGE

Display when "NEW" is selected:

OK: PRESS START

NEW CART. OK?

exa

UX-B20U/UX-B20C/B25C

10)Press to make the print cartridge holder return to its home

11)Press (NEW) if the cartridge you installed is new.

INK

position.

7) Place your index finger on the tab as shown and close the cartridge holder cover with your thumb. Make sure the cover clicks into place.

8) Close the print compartment cover.

Press (OLD) if the cartridge you installed is old.

START/

12)Press .

MEMORY

If you selected “OLD” in the previous step, this completes the installation procedure. (Note: If you find that print quality is not satisfactory after reinstalling the old cartridge, align the cartridge as explained.)

If you selected “NEW”, the display will show the alternating messages at right. Continue with the following steps to align the print cartridge.

Display when "NEW" is selected:

ALIGN CARTRIDGE

1=PRINT,2=SET

9) Close the operation panel, pressing down firmly to make sure it clicks into place.

Display:

REPLACE INK &

PRESS INK KEY

13)Press to print an alignment page. (To enter an alignment

value without printing an alignment page, press .)

14)In the alignment page that the machine prints, locate the line that comes closest to forming a completely straight line.

spas

mpl

1 – 7

UX-B20U/UX-B20C/B25C

Press once and twice.

Press once and 4 times.

Press once.

Press to turn on high-quality fax

print, or to turn it off.

Press to return to the date and time display.

HQ COPY

The display briefly shows your selection, then:

1=YES, 2=NO

HQ FAX PRINT

Display:

PRINT SET-UP

15)Press the number keys to enter the number of the straightest line.

Example:

• If you make a mistake, press and then repeat the entry.

START/

16)Press .

• This completes the alignment procedure.

8. Setting the paper size

The machine has been set at the factory to scale received faxes to letter size paper. If you loaded legal paper, you must change the paper size setting to LEGAL.

MEMORY

10. High-quality fax print setting (fast/slow printing

of faxes)

The high-quality fax print setting controls the speed at which faxes are printed. If you prefer a higher quality image at a slower printing speed, turn on this setting. If you prefer a faster printing speed over image quality, turn off the setting.

Note: This setting only affects the printing speed. It does not affect the amount of ink used.

• The high-quality fax print setting is initially turned off.

START/

MEMORY

Display:

PRINT SET-UP

PAPER SIZE SET

1=LETTER,2=LEGAL

The display briefly shows your selection, then:

COPY CUT-OFF

ADD PAPER &

PRESS START KEY

Press once and twice.

Press once and once.

Press once.

Select the paper size:

LETTER: LEGAL:

Press to return to the date and time display.

Note: If at any time the display shows the alternating messages at right, check the printing paper. If the tray is empty, add paper. If there is paper in the tr ay, take it out

and then reinsert it. When you are finished, press

9. Quality mode (using more/less ink)

If you prefer a higher quality image when printing faxes and copies, turn on Quality mode. If you wish to use less ink or speed up ink drying time, turn off Quality mode.

• Quality mode is initially turned on.

11. Connecting the telephone line cord

Insert one end of the line cord into the jack on the back of the machine marked TEL. LINE. Insert the other end into a standard (RJ11C) single-line wall telephone jack.

Press once and twice.

Press once and 3 times.

Press once.

Press to turn on Quality mode, or

toturnitoff.

Press to return to the date and time display.

Display:

PRINT SET-UP

QUALITY MODE

1=YES, 2=NO

The display briefly shows your selection, then:

HQ FAX PRINT

1 – 8

Setting the dial mode

The fax machine is set for tone dialing. If you are on a pulse dial line, you must set the fax machine for pulse dialing. Press the panel keys as follows:

Press once and 3 times.

Press once.

Select the dial mode:

TONE: PULSE:

Press to exit.

Display:

OPTION SETTING

DIAL MODE

1=TONE, 2=PULSE

The display briefly shows your selection, then:

DISTINCTIVE

12. Clearing a jammed document

If the original document doesn’t feed properly during transmission or copying, or DOCUMENT JAMMED appears in the display, first try pressing the START/MEMORY key. If the document doesn’t feed out, remove it as explained below.

Important:

Do not try to remove a jammed document without releasing it as explained below. This may damage the feeder mechanism.

1) Open the operation panel.

UX-B20U/UX-B20C/B25C

13. Clearing jammed printing paper

Gently pull the jammed paper out of the machine, taking care not to

tear it. After removing the jammed paper, press to clear the

error message (PAPER JAMMED) from the display.

• Normal operation cannot be resumed until you press to clear

the error message.

2) Gently and remove the document.

• Be careful not to tear the document.

3) Close the operation panel, pressing down firmly to make sure it clicks into place.

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UX-B20U/UX-B20C/B25C

[5] Quick setup guide

IMPORTANT!!

Should you require any assistance setting up or operating your product, please

DO NOT RETURN YOUR PRODUCT TO THE STORE.

After referring to the setup guide and operation manual, if you still require assistance please consult our web page at www.sharpusa.com. From our web page you will be able to directly e-mail our customer support team. If you would like personal assistance, please call our Customer Assistance Center at 1-877-794-8675.

Load paper.

1. Fan the paper.

1. Open the

operation panel.

Connect the handset.

2. Gently insert paper into the paper tray,

printsideup

The stack should not be higher than this line

Do not force paper down into the feed slot

2. Open the print compartment cover.

Connect the phone line cord to the

TEL. LINE jack and a wall jack.

3. Remove the packing tape.

1. Attach the paper tray.

4. Close the pr int compartment cover.

2. Attach the paper tray extension.

Insert horizontally and rotate up

If the tabs do not go into the holes, turn the extension over.

5. Close the operation panel.

Click!

Plug the power cord into a 120-V grounded outlet.

Note: If you are loading legal paper, see of the operation manual to change the paper size setting to LEGAL.

Install the Print C ar tridge.

1. Make sure the handset is on its cradle and then

INK

press .

The cartridge holder moves to the cartridge replacement position.

6. Insert the new pr int cartridge

into the cartridge holder.

10.a. Press to select NEW.

b. Pres s

c. Press

2. Open the operation panel.

START/

MEMORY

to print an alignment page.

3. Open the pr int

7. Place your index finger on t he tab and close the cartridge holder cover with your thumb.

ALIGN CARTRIDGE

1=PRINT,2=SET

4. Remove only the tape from the

compartment cover.

11.In the alignment page that the machine prints, locate the line that comes closest to forming a completely straight line. Enter the number of that line.

Example:

(If you make a mistake, press and

then repeat the entry.)

new cartridge. IMPORTANT:Makesureyou remove all of the tape.

5. Make sure the cartridge holder has moved slightly away from the right side of the compar tment, and then pull the green lever and open the cartridge holder cover.

Caution! Do not touch the gold contact area.

8. Close the print compartment cover and then the operation panel.

Do not pull on the cable or touch the gold contact area.

Cable

Gold contact area

INK

9. Press to make the car tridge

holder return to its home position.

Display:

CHANGE CARTRIDGE

1=NEW, 2=OLD

START/

12. Press .

MEMORY

1 – 10

Note: To enter your name and fax number and set the date and time so that they appear at the top of each fax you send, see page Chapter 1 of your operation manual.

[6] Quick reference guide

SPACE =

UX-B20U/UX-B20C/B25C

3. Storing Auto Dial Numbers

1. Sending Faxes

Place your document (up to 10 pages) face down in the document feeder.

1.1. 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).

START/

4. Press .

1.2. Automatic Dialing

1. Press or until the desired destination appears in the

display.

MEMORY

1. Press once and twice.

2. Enter the full fax number.

START/

3. Press .

MEMORY

4. Enter a name by pressing number keys. (To enter two letters in

succession that require the same key, press after entering

the first letter.)

START/

5. Press and then .

MEMORY

START/

2. Press .

MEMORY

1.3. Direct Keypad Dialing

1. Dial the fax number.

START/

2. Press .

MEMORY

2. Receiving Faxes

RESOLUTION/

Press the until the arrow in the display points to the desired

reception mode.

FAX mode: The fax machine automatically answers and receives faxes.

TEL mode: Answer all calls (even faxes) by picking up the handset. To

begin fax reception, press .

RECEPTION

RESOLUTION/

RECEPTION

JAN-03 10:30

START/

MEMORY

TEL

FAX

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UX-B20U/UX-B20C/B25C

Press .

Press or to select the desired volume le vel.

• Press again to turn off the speaker.

Display:

SPEAKER: HIGH

SPEAKER: MIDDLE

SPEAKER: LOW

FAXUX-B20U/UX-B20C/B25CService ManualService ManualMarketE

CHAPTER 2. ADJUSTMENTS

[1] Adjustments

4. Settings

4.1. Dial mode selector

DIAL mode (Soft Switch No. SW-B4 Data No. 3)

1. General

Since the following adjustments and settings are provided for this model, make adjustments and/or setup as necessary.

2. Adjustments of output voltage (FACTORY ONLY)

1. Install the power supply unit in the machine.

2. Set the recording paper and document.

3. When the document is loaded, power is supplied to the output lines. Confirm that outputs are within the limits below.

2.1. Output voltage settings

CNPRG

CNPN

CNCIS

CNSP

LIU PWB

No. CNPW

+5V +5V

CNLIU

CNCRMT

CNPW

POWER SUPPLY PWB

Output Voltage limits

+5V 4.75V ~ 5.25V

+30V 27.0V ~ 33.0V

CNHEAD2

CNHEAD1

CNBKL

CNFDMT

CONTROL PWB

Connector

Pin No.

1 +30V 2 +30V 3MG

4MG 5DG 6DG 7 8

(step 1) Select "OPTION SETTING".

KEY : FUNCTION

DISPLAY: OPTION SETTING FINE PRIORITY

(step 2) Select "DIAL MODE".

KEY: Push until DIAL MODE is

DISPLAY: DIAL MODE 1=TONE, 2=PULSE

(step 3) Select, using "1" or "2".

KEY: 1

DISPLAY: TONE SELECTED

KEY: 2

DISPLAY: PULSE SELECTED

(step 4) End, using the "STOP" key.

KEY:

indicated because the number of

's changes by the model.

5. Volume adjustments

You can adjust the volume of the speaker, handset, and ringer using the UP and DOWN arrow keys.

5.1. Speaker

3. IC protectors replacement

ICPs (IC Protectors) are installed to protect the motor driver circuit. ICPs protect various ICs and electronic circuits from an overcurrent condition.

The location of ICPs are shown below:

FU101

CNPW

FU100

1) FU100 (KAB5002) is installed in order to protect IC's from an overcurrent generated in the motor drive circuit. If FU100 is open, replace it with a new one.

2) FU101 (KAB3202) is installed in order to protect IC's from an overcurrent generated in the motor drive circuit. If FU101 is open, replace it with a new one.

CNCRMT

CNFDMT

CNHEAD2

CNHEAD1

CNPN

CNBKL

CONTROL PWB

(TOP SIDE)

CNSP

CNPRG

CNCIS

CNLIU

2 – 1

5.2. Handset

Press or to select the desired volume le vel.

(Make sure has not been pressed,

the handset is not lifted, and a document is not loaded in the feeder.)

• The ringer will ring once at the selected

If yo u selected RINGER: OFF OK ? to

turn off the ringer , press .

5.3. Ringer

When talking thr ough the handset,

press or to select the desired volume le vel.

•

level.

START/

MEMORY

Note: The volume reverts to MIDDLE each time you replace the handset.

Display:

RINGER: HIGH

RINGER: MIDDLE

RINGER: LOW

RINGER: OFF OK ?

Display:

RECEIVER: HIGH

RECEIVER: MIDDLE

RECEIVER: LOW

UX-B20U/UX-B20C/B25C

[2] Diagnostics and service soft switch

1. Entering the diagnostic mode

Press FUNC → 9 → → 8 → # → 7 , and the following display will appear.

ROM Ver. TC25 or TC44

TC25 (UX-B20U)

TC44 (UX-B20C/UX-B25C)

Then press the START key. Select the desired item with the UP key or the DOWN key or select with the rapid key. Enter the mode with the START key.

(Diag· specifications)

After 2 sec: DIAG MODE

FUNC

If the diag mode cannot be set, repeat the diag mode operation, performing the following operation. After the power is turned on and "WAIT A MOMENT" is indicated, press the STOP key.

9 8 7

TC25 or TC44

"Power ON"

STOP

DIAG MODE

KEY

STARTSoft switch mode

STARTROM & RAM check

STARTAging mode

STARTPanel key test

STARTCheck pattern

STARTSignal send mode

START/

MEMORY

START

KEY

START

In relation with the process response (request from Production Engineering) "WAIT A MOMENT" clock indication may appear depending on STOP key timing. If the STOP key is held down, "MEMORY CLEAR?" appears.

Entry data rcv.

Entry data send

Auto feeder mode

Shading mode

Memory clear

2. Diagnostic items

ITEM No. Contents Function

1 SOFT SWITCH MODE Soft switches are displayed and changed. List can be output.

2 ROM & RAM CHECK ROM sum-check and RAM is matched. Result list is output.

3 AGING MODE 10 sheets of check patterns are output every 5 minutes per sheet.

4 PANEL KEY TEST Panel keys are tested. Result list is output.

5 CHECK PATTERN Check pattern is output.

6 SIGNAL SEND MODE Various signals of FAX communication are output.

7 MEMORY CLEAR Back-up memory is cleared, and is set at delivery.

8 SHADING MODE Shading compensation is performed in this mode.

9 AUTO FEEDER MODE Insertion and discharge of document are tested.

10 ENTRY DATA SEND Registered content is sent.

11 ENTRY DATA RECEIVE Registered content is received, and its list is output.

2 – 2

UX-B20U/UX-B20C/B25C

3. Diagnostic items description

3.1. Soft switch mode

Used to change the soft switch settings. The soft switch which is stored internally is set by using the keys. The available soft switches are SW-A1 to SW-P7. The content of soft switches is shown in Soft switch description. The contents are set to factory default settings.

3.2. ROM & RAM check

ROM executes the sum check, and RAM executes the matching test.

The result will be notified with the number of short sounds of the buzzer as well as by printing the ROM & RAM check list.

Number of short sounds of buzzer 0 → No error 1 → FAX engine ROM error 2 → RAM error

(4Kbytes SRAM or 512Kbytes DRAM)

3.3. Aging mode

The check pattern will be printed sheet by sheet. This operation will be executed at a rate of one sheet per 5 minutes, and will be ended at a total of 10 sheets.

3.4. Panel key test

This mode is used to check whether each key operates properly. Press the key on the operation panel, and the key will be displayed on the LCD. Therefore, press all keys. At this time, finally press the STOP key. When the STOP key is pressed, the keys that are not judged as "pressed" will be printed on the result list.

• LED part of the contact image sensor (CIS) is kept on during the term from when "START" of the panel test mode to end with the STOP key.

3.5. Check pattern

Check patterns are printed on one sheet. Printing performance:The following 4 items are checked.

• Print area:Checks that the print area is reserved.

• Nozzles:When checking the nozzle, make sure at least 1 line is printed in each block: all the blocks of horizontal black bars and the black line patterns in (B) and (C) ((B):16 patterns, (C):13 patterns). (Note: If the nozzle (A) is not spraying properly, checking the area (B) and (C) may be difficult (or may not be printed at all). In this case, print again.

• Vertical align:Checks that the straight vertical line is drawn instead of crooked line.

• Skew:Checks the skew of the recording paper.

Detailed of check patterns (1)Top skew (2)Nozzle test (3)Vertical lines (4)Bottom skew (5)Top margin (6)Left margin (7)Bottom margin

(6)

(5)

(A) (B)

(C)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

(1)

(2)

(3)

3.6. Signal send mode

This mode is used to send various signals to the circuit during FAX communication. Every push of START key sends a signal in the following sequence. Moreover, the signal sound is also output to the speaker when the line monitor of the soft switch is on.

[1] No signals [2] 9600BPS (V.29) [3] 7200BPS (V.29) [4] 4800BPS (V.27ter) [5] 2400BPS (V.27ter) [6] 300BPS (FLAG) [7] 2100Hz (CED) [8] 1100Hz (CNG)

3.7. Memory clear

This mode is used to clear the backup memory and reset to the default settings.

3.8. Shading mode

The mode is used for the shading compensation. For reading, set up the special original paper. (Refer to page 8-3) The compensation memorizes the reference data of white and black for reading. Moreover, the memorized data is not erased even if memory clear mode is executed.

3.9. Auto feeder mode

In this mode, a document is inserted and discharged to check the auto feed function.

After this mode is started, set a document, and the document feed will be automatically tested.

3.10. Entry data send

This mode is used to send the registered data to another machine and make the other machine copy the registered content.

Before sending in this mode, it is necessary to set the other machine at the entry data receive mode.

The following, information will be sent to the remote machine:

1. Telephone list data

2. Sender register data

3. Optional setting content

4. Soft switch content

5. Junk fax number

6. Recording setting list data

3.11. Entry data receive

In this mode, the registered data sent from the other machine is received and the received data is registered in the machine. When this mode is used for receiving, the other machine must be in the entry data send mode.

After receiving is completed, the following lists are printed.

1. Telephone list data

2. Sender register list (*)

3. Optional setting list (*)

4. Soft switch content

5. Junk fax number list (*)

6. Recording setting list data (*)

(*): Refer to SETUP LIST

(7)

(4)

2 – 3

UX-B20U/UX-B20C/B25C

4. Entering the printer diagnostic mode

Press FUNC 9 8 # 6 , and the following display will appear.

PRINT DIAG MODE

Then press the START key. Select the desired item with the up key or the down key or select with the rapid key. Enter the mode with the START key.

(Diag· specifications)

FUNC

9 8 6

PRINT DIAG MODE

START

START4% DATA PRINT AGING

ASF AGING

ASF SKEW CHECK AGING

CROSS PATTERN

INITIAL CARTRIDGE DATA SETTING

IJP LIST MODE

PRINTER ERROR CHECK MODE

If the diagnostic mode cannot be set, repeat the diagnostic mode operation, performing the following operation. After the power is turned on and "WAIT A MOMENT" is indicated, press the STOP key.

"Power ON"

STOP

KEY

START

START/

MEMORY

START

KEY

In relation with the process response (request from Production Engineering) "WAITAMOMENT" clock indication may appear depending on STOP key timing. If the STOP key is held down, "MEMORY CLEAR?" appears.

5. Printer diagnostic items

Item No. Contents Function

1 4% DATA PRINT AGING 4% of printing data continue to be printed. 2 ASF AGING The feed of the paper is continued. 3 ASF SKEW CHECK AGING The frame pattern continues to be printed to check the inclination performance. 4 CROSS PATTERN The image data of the cross pattern to be printed. 5 INITIAL CARTRIDGE DATA SETTING It makes the dot counter the setting for the initial cartridge. 6 IJP LIST MODE The maintenance data is printed. 7 PRINTER ERROR CHECK MODE The cause of “PRINTER ERROR” message is displayed.

6. Printer diagnostic items description

6.1. 4% data print aging

This mode is the aging mode that prints the text pattern of 4%

6.2. ASF aging (all white)

This mode is the aging mode that tests the performance of the ASF function.

6.3. ASF skew check aging

This mode is the aging mode that tests the performance of the ASF function.

Detailed of check patterns

1. Top skew

2. Bottom skew

3. Top margin

4. Bottom margin

6.4. Cross pattern

This mode prints the test pattern that tests the performance of the printer.

6.5. Initial cartridge data setting

This mode makes the dot counter the setting for initial cartridge, and this mode resets the following counter.

1. Replacement counter of the cartridge

2. Paper jam counter

2 – 4

UX-B20U/UX-B20C/B25C

6.6. IJP list mode

Maintenance data of the printer is output.

[Details of maintenance data]

Item Clear timing Update timing

Dot counter At the replacement cartridge After printing Page counter At the replacement cartridge After printing Number of head cleaning (Wiping of cartridge) At the initial cartridge setting At the maintenance Replacement counter of the cartridge At the initial cartridge setting At the replacement of cartridge Jam counter At the initial cartridge setting At every paper jam

6.7. Printer error check mode

The cause of “PRINTER ERROR” message is displayed.

[Details of Display]

Display Cause of “PRINTER ERROR” message

PRINTER ERR 01 Power on reset response was not received from printer. PRINTER ERR 02 Print data transfer from Printer interface ASIC to printer was not completed for 180 sec. PRINTER ERR 03 Cap position check of the carrier is failed. PRINTER ERR 04 Printing 1 page is not finished during 5 min. PRINTER ERR 05 Carrier moving from cartridge change position to cap position is failed. PRINTER ERR 06 Carrier moving to cartridge change position is failed. PRINTER ERR 07 Cartridge replacement is failed. PRINTER ERR 08 Cartridge ID check is failed. PRINTER ERR 09 Carrier was not reached to cap position for 60 sec after last printed page was exited. PRINTER ERR 10 Paper pick up is failed. PRINTER ERR 20 Carrier stall error. PRINTER ERR 21 Carrier stall error. PRINTER ERR 22 Carrier stall error. PRINTER ERR 23 Carrier stall error. PRINTER ERR 24 Printer head short error. PRINTER ERR 25 Printer head heater control is failed. PRINTER ERR 26 Print start position setting is abnormal.

2 – 5

7. How to make soft switch setting

To enter the soft switch mode, press the following key entries in sequence.

UX-B20U/UX-B20C/B25C

Press

FUNCTION

9 8 7 STARTSTART

DATA No. 1 2 3 4 5 6 7 8

S F T SW-A1 = 00000000

S F T SW-A1 = 10000000

S F T SW-A2 = 00000000

S F T SW-P7 = 00000000

Press FUNCTION key.

Press key.

Bit1 - 8 are set.

Press key during setting.

Soft SW-A2 - SW-P7 are set.

To finish the settings halfway between SW-A1 and SW-P7, press the STOP key. In this case, the setting being done to the SW No. on display will be nullified while settings done to the preceding SW No. remain in effect.

When the COPY key is pressed, the contents of soft switches are printed.

START

The soft switch mode is terminated.

2 – 6

UX-B20U/UX-B20C/B25C

8. Soft switch description

8.1. Soft switch

NO.

DATA

NO.

1 Protect from echo No Yes 0 2 Forced 4800 BPS reception Yes No 0 3 Footer print Yes No 0 4 Length limitation of copy/send/

receive

5 CSI transmission No transmitted Transmitted 0 6 DIS receive acknowledgement dur-

ing G3

7 Non-modulated carrier for V29

transmission modem

8 EOL detect timer 25sec 13sec 0

Modem speed No. 1 No.2 No. 3 No. 4

1 2 3 4

5 Sender’s information transmit No Yes 0 6 H2 mode No Yes 0 7 Communication error treatment in

RTN sending mode (reception)

8 CNG transmission No Yes 0

CED tone signal interval 1000ms 750ms 500ms 75ms 1 2

3 MR coding No Yes 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0

Signal transmission level 0

1 2 3 4 5

ITEM

No limit Copy/send: 60 cm

Twice NSF : On ce

Yes No 0

V.29 9600bps 0 0 0 1

V.29 7200bps 0 0 1 1 V.27ter 4800bps 0 0 1 0 V.27ter 2400bps 0 0 0 0

No communication error Communication error 0

No. 1 1 1 0 0 No. 2 1 0 1 0

Switch setting and function Initial setting

10U/C

Receive: 1 m

DIS: Twice

Binary input

No.= 168421

12345

EX0 0111

eg. Signal transmission level is set to -7dBm.

Remarks

0 0 0 1

0 0

0 1 1 1

6 Protocol monitor (Error print) Printed at communication error Not printed 0 7 Protocol monitor Yes No 0 8 Line monitor Yes No 0

Digital line equalization setting (Reception)

1 2

Digital line equalization setting (Transmission)

3 4

Digital cable equalizer setting (Reception for Caller ID)

5 6

7 Error criterion 10 ~ 20% 5 ~ 10 % 0 8 Anti junk fax check Yes No 1

No. 1 1 0 No. 2 1 0

No. 3 1 0 No. 4 1 0

No. 5 1 0 No. 6 1 0

7.2km 0km

2 – 7

1 1

0 0

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

1Reserved 0 2Reserved 0 3 Disconnect the line when DIS is

received in RX mode 4 Equalizer freeze control (MODEM) On Off 0 5 Equalizer freeze control 7200 BPS

only 6 CNG transmission in manual TX

mode 7 Initial compression scheme for

sharp fax in TX mode 8 Modem speed automatic fallback

when RX level is under -40dBm

Recall interval 0

1 2 3 4

Recall times 0

5 6 7 8

ITEM

No Yes 1

No Yes 0

Yes No 1

MR mode H2 mode 0

Yes No 0

Switch setting and function Initial setting

10U/C

Binary input

No.=8421

1234

EX0101

eg. Recall interval is set to 5 min.

Binary input

No.=8421

5678

EX0011

eg. Recall time is set to 3 times.

Remarks

1 0 1

0 1 1

1 Dial pausing (sec/pause) 4 sec 2 sec 0 2 Dial tone detection (before auto dial) No Yes 1 3Reserved 0 4 Busy tone detection (after auto dial) No Yes 0

Waiting time after dialing 5 6

7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0 5Reserved 0

Auto dial mode delay timer of before

line connect

6 7

8 Hold key Enable Disable 1

Auto dial mode delay timer of after

line connect

1 2

3 Dial mode Tone Pulse 1 OPTION 4Pulse → Tone change function by

key 5 Dial pulse make/break ratio (%) 40/60 33/67 1 6Reserved 0 7Reserved 0 8 Recalling fixed only one time when

dialing was unsuccessful without detecting busy tone signal

No. 50011 No. 60101

No. 60011 No. 70101

No. 10011 No. 20101

Enable Disable 1

Yes No 1

45 sec 55 sec 90 sec 140 sec

0 0

0 sec 1.5 sec 3.0 sec 4.5 sec

0 0

1.7 sec 3.0 sec 3.6 sec 4.0 sec 0 0

2 – 8

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

DTMF signal transmission level

(Low)

2 3 4 5

6Reserved 0 7Reserved 0 8Reserved 0

DTMF signal transmission level

(High)

2 3 4 5

6Reserved 0 7Reserved 0 8Reserved 0

Reading slice (Binary) Factory

1 2

Reading slice (Half tone) Factory

3 4

5 Line density selection Fine Standard 0 OPTION 6Reserved 0 7 MTF correction in half tone mode No Yes 0 8Reserved 0

Number of rings for auto receive 0

1 2 3 4

5 Automatic switching manual to auto

receive mode

6Reserved 0

Cl detect frequency As PTT 11.5Hz 13.0Hz 20.0Hz

7 8

Distinctive ringing setting (PATTERN

4 and 5 are for CANADA only)

2 3

4Reserved 0 5 Caller ID function Yes No 0 OPTION 6 Caller ID detect during CI off All times Only first 0 7Reserved 0 8Reserved 0

ITEM

No. 10101 No. 20011

No. 30101 No. 40011

Reception after 5 rings No reception 0

No. 70011 No. 80101

OFF 000 STANDARD 0 0 1 PATT ERN1 0 1 0 PATT ERN2 0 1 1 PATT ERN3 1 0 0 PATT ERN4 1 0 1 PATT ERN5 1 1 0

Switch setting and function Initial setting

10U/C

Binary input

No.= 168421

1 2 3 4 5(nx0.5dBm)

EX0 0110

eg. Signal transmission level is set to -3dBm.

Binary input

No.= 168421

1 2 3 4 5(nx0.5dBm)

EX0 0011

eg. Signal transmission level is set to -1.5dBm.

Light Dark Darker

setting

Light Dark Darker

setting

Binary input

No.=8421

1234

EX0100

eg. Number of rings for auto receive is set to 4times.

No. 1 No. 2 No. 3 0

in dark

0 1 1 0

0 0 0 1 1

0 0

1 0 0

0 0

Remarks

OPTION

2 – 9

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

Cl off detection timer (0-1550ms set-

ting by 50ms step)

2 3 4 5

6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0

DTMF detection time 50ms 80ms 100ms 120ms 1 2

3 Protection of remote reception

(5 ) detect 4 Remote reception with GE

telephone

Remote operation code figure by

external TEL (0~9)

6 7 8

ITEM

No. 10011 No. 20101

Yes No 1

Compatible Not compatible 1

Switch setting and function Initial setting

10U/C

Binary input

No.= 168421

1 2 3 4 5(nx50ms)

EX0 1110

eg. CI signal OFF detect time is set to 700ms.

Binary input

No.=8421

5678

EX0101

eg. Remote operation code is set to 5 .

Remarks

0 1 1 1 0

0 0

0 1 0 1

2 – 10

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

1 CNG detection in STAND-BY mode Yes No 1 OPTION 2Reserved 0 3Reserved 0

Number of CNG detect (STAND-BY

mode)

6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0

ITEM

No. 40011 No. 50101

Switch setting and function Initial setting

10U/C

1pulse 2pulses 3pulses 4pulses

0 1

Remarks

2 – 11

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0

ITEM

Switch setting and function Initial setting

10U/C

Remarks

2 – 12

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

1 Reserved 0 2 Reserved 0 3 Sender’s phone number setting Cannot change Change allowed 0 4 Reserved 0 5 Reserved 0

6 Summer time setting No Yes 1 OPTION

Ringer volume Off Low Middle High 7 8

Speaker volume (3 stages) Low Low Middle High 1 2

3 Reserved 0

Handset receiver volume Low Low Middle High 4

6 Reserved 0 7 Reserved 0 8 Reserved 0 1 Reserved 0

Communication results printout

(Transaction report)

2 3 4

5 Reserved 0 6 Reserved 0 7 Reserved 0 8 Reserved 0 1 Reserved 0 2 Reserved 0 3 Reserved 0 4 Reserved 0 5 Reserved 0 6 Reserved 0 7 Reserved 0 8 Reserved 0 1 Reserved 0 2 Reserved 0 3 Reserved 0 4 Reserved 0 5 Cut off mode (COPY mode) Yes No 1 OPTION 6 A4 paper enable Enable Disable 0 7 LEGAL & LETTER paper enable Enable Disable 1 8 Reserved 0

Paper set size LETTER LEGAL A4

1 2 3 Automatic reduce of receive Auto 100 % 1 OPTION

4 Reserved 0 5 Reserved 0 6 Reserved 0 7 Reserved 0 8 Reserved 0

ITEM

No. 70011 No. 80101

No. 10011 No. 20101

No. 40011 No. 50101

No. 200001 No. 300110 No. 401010

No. 1 001 No. 2 010

Switch setting and function Initial setting

10U/C

1 0

E/T/M Send

only

Always No print Err only

1 0 0

0 0

Remarks

OPTION

2 – 13

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0

ITEM

Switch setting and function Initial setting

10U/C

Remarks

2 – 14

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0 1Reserved 0 2Reserved 1 3Reserved 1 4Reserved 0

5Reserved 1 6Reserved 1 7Reserved 1 8Reserved 1 1Reserved 0 2Reserved 0 3Reserved 0 4Reserved 0

5Reserved 0 6Reserved 0 7Reserved 0 8Reserved 0

ITEM

Switch setting and function Initial setting

10U/C

Remarks

2 – 15

UX-B20U/UX-B20C/B25C

NO.

DATA

NO.

1 Reserved 0 2 Reserved 0 3 Reserved 0 4 Reserved 0

5 Reserved 0 6 Reserved 0 7 Reserved 0 8 Reserved 0 1 Reserved 0 2 Reserved 0 3 Reserved 0 4 Reserved 0

5 Reserved 0 6 Reserved 0 7 Reserved 0 8 Reserved 0 1 Ink save mode Yes No 0 OPTION 2 Half tone copy ink save mode print-

ing fixed 3 Reserved 0 4 Reserved 0

5 Reserved 0 6 Reserved 0 7 Reserved 0 8 Reserved 0 1 Reserved 0 2 Reserved 0 3 Reserved 0

End buzzer 3sec 1sec No beep 4

6 Key error/Communication error

beep 7 End beep (3sec) No beep Beep 0 OPTION 8 Key touch tone No beep Beep 0 OPTION

ITEM

Yes No 1

No. 4 001 No. 5 010

No beep Beep 0 OPTION

Switch setting and function Initial setting

10U/C

0 0

Remarks

2 – 16

UX-B20U/UX-B20C/B25C

TX RX

CED

DIS

8.2. Soft switch function description

SW-A1 No. 1 Protect from echo

Used to protect from echo in reception.

SW-A1 No. 2 Forced 4800BPS reception

When line conditions warrant that receptions take place at 4800 BPS repeatedly.

It may improve the success of receptions by setting at 4800BPS.

This improves the receiving document quality and reduces handshake time due to fallback during training.

SW-A1 No. 3 Footer print

When set to "1", the date of reception, the sender machine No., and the page No. are automatically recorded at the end of reception.

SW-A1 No. 4 Length limitation of copy/send/receive

Used to set the maximum page length.

To avoid possible paper jam, the page length is normally limited to 0.6 meter for copy or transmit, and 1 meters for receive.

It is possible to set it to "No limit" to transmit a long document, such as a computer print form, etc. (In this case, the receiver must also be set to no limit.)

SW-A1 No. 5 CSI transmission

(CSI TRANSMISSION) is a switch to set whether the machine sends or does not send the signal (CSI signal) informing its own telephone No. to the remote fax machine when information is received. When "nonsending" is set, the telephone No. is not output on the remote transmitting machine if the remote transmitting machine has the function to display or print the telephone No. of receiving machine, using this CSI signal.

SW-A1 No. 6 DIS receive acknowledgment during G3 transmission

Used to make a choice of whether reception of DIS (NSF) is acknowledged after receiving two DISs (NSFs) or receiving one DIS (two NSFs).

It may be useful for overseas communication to avoid an echo suppression problem, if set to 1.

SW-A1 No. 7 Non-modulated carrier for V.29 transmission modem

Though transmission of a non-modulated carrier is not required for transmission by the V.29 modem according to the CCITT recommendation, it may be permitted to a send non-modulated carrier before the image signal to avoid an echo suppression problem. It may be useful for overseas communication to avoid an echo suppression problem, if set to 1.

SW-A1 No. 8 EOL (End Of Line) detect timer

Used to make a choice of whether to use the 25-second or 13-second timer for detection of EOL.

This is effective to override communication failures with some facsimile models that have longer EOL detection.

SW-A2 No. 1 ~ No. 4 Modem speed

Used to set the initial modem speed. The default is 9600BPS.

It may be necessary to program it to a slower speed when frequent line fallback is encountered, in order to save the time required for fallback procedure.

SW-A2 No. 5 Sender’s information transmit

(SENDER’S INFORMATION TRANSMISSION) is a switch to set the function to print the content of HEADER PRINT described in the passcode list at the front end of receiver’s original when original is sent to the remote machine.

If this switch is set to "NO", the HEADER PRINT is not output at the receiving machine.

SW-A2 No. 6 H2 mode

Used to determine reception of H2 mode (15 sec transmission mode). When set to OFF, H2 mode reception is inhibited even though the transmitting machine has H2 mode function.

SW-A2 No. 7 Communication error treatment in RTN sending mode (Reception)

Used to determine communication error treatment when RTN is sent by occurrence of a received image error in G3 reception. When it is set to "1", communication error is judged as no error.

SW-A2 No. 8 CNG transmission

When set to "0" , this model allows CNG transmission by pressing the Start key in the key pad dialing mode. When set to "1", CNG transmission in the key pad dialing mode cannot be performed. In either case. CNG transmission can be performed in the auto dial mode.

SW-A3 No. 1, No. 2 CED tone signal interval

For international communication, the 2100Hz CED tone may act as an echo suppression switch, causing a communication problem.

Though SW-A3 No. 1 and No. 2 are normally set to 0, this setting is used to change the time between the CED tone signal to eliminate the communication caused by echo.

SW-A3 No. 3 MR Coding

MR Coding is enable.

SW-A3 No. 4 ~ No. 8 Reserved

Set to "0".

SW-A4 No. 1 ~ No. 5 Signal transmission level

Used to control the signal transmission level in the range of-0dB to31dB.

SW-A4 No. 6 Protocol monitor (Error print)

If set to "1", protocol is printed at communication error.

SW-A4 No. 7 Protocol monitor

Normally set to "0". If set to "1", communication can be checked, in case of trouble, without using a G3 tester or other tools.

When communication FSK data transmission or reception is made, the data is taken into the buffer. When communication is finished, the data is analyzed and printed out. When data is received with the line monitor (SW-A4 No. 8) set to "1" the reception level is also printed out.

SW-A4 No. 8 Line monitor

Normally set to "0". If set to "1", the transmission speed and the reception level are displayed on the LCD. Used for line tests.

2 – 17

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