Ricoh FAX220 User manual

RICOH FAX220/240
SERVICE MANUAL
Copyright © 1992, Ricoh Company Ltd., Japan
Subject to change

1. INTRODUCTION
1-1. General Specifications
Item Specification
Type Desktop transceiver
Telephone Circuit PSTN/PBX
Document Size Width: 148 - 218 mm
Length: 105 - 600 mm
Thickness: 0.05 - 0.15 mm
Scanning Method Flat bed, CCD
Scanning Width 216 ±1 mm
Effective Printing Width 210 mm (minimum)
Scan Resolution Standard: 8 x 3.85 dots/mm
Detail: 8 x 7.7 dots/mm
Fine: 8 x 15.4 dots/mm
Transmission Time FAX220 - 15 s (Measured using a CCITT #1 test chart,
Slerexe Letter, at 9,600 bps, MH coding with EFC,
10 ms/line I/O rate, standard resolution)
FAX240 - 11 s (Measured using a CCITT #1 test chart,
Slerexe Letter, at 9,600 bps, MMR coding with ECM, 10
ms/line I/O rate, standard resolution)
Data Compression Method MH, EFC, SSC, MR, MMR* (*: FAX240 only)
SAF Memory Capacity 128 kbytes (9 CCITT #1 test charts can be stored.)
Modulation Method V29, V27ter, V21
Transmission Data Rate 9600/7200/4800/2400 bps (Automatic fallback)
Protocol CCITT T.30 standard (NET 30)
Printing Method Thermal printing
Printer Paper Size 216 mm x 50 m roll
Dimensions 355 x 454 x 203 mm
Weight 4.6 kg
Input Voltage H501-50, 51, 52, 53, 54, H502-50, 51, 52, 53, 54:
220 - 240 Vac, 50 Hz single phase
H501-55, H502-55: 120 Vac, 50/60 Hz, single phase
Recommended Operating Environment Temperature: 17 - 28 °C
Humidity: 30 - 85 %RH
1-1

1-2. Features LIst
Features FAX220 FAX240
Transmission
Automatic transmission yes yes
Manual transmission yes yes
ADF capacity 5 5
Automatic Contrast Control yes yes
Polling transmission yes yes
Send later yes yes
Dial via dialpad yes yes
Quick dial (one touch) 10 10
Speed dial (two touch) 40 40
Automatic redial yes yes
Manual redial yes yes
Label programming for Quick/Speed dials yes yes
Page indicator CSI + P.1 yes yes
Page indicator TTI + P.1 or P.1/10 yes yes
Automatic page retransmission in normal tx mode no yes
Reception
Automatic reception yes yes
Manual reception yes yes
Polled reception yes yes
Automatic cutter no yes
Manual cutter yes no
Authorized reception (with TSI) yes yes
Decurler no yes
Printing of the TSI on received copies yes yes
Communication
TTI (page header with name) yes yes
RTI (own phone number or text) yes yes
CSI (own phone number) yes yes
Counters (user function) no no
Voice request no no
PD/DTMF change by switch yes yes
Modified read (MR) yes yes
ECM with MMR compression no yes
Compatibility
CCITT group 3 yes yes
Copy quality
Halftone (16 level) with image/text separation yes yes
Auto shading yes yes
MTF yes yes
8 x 15.4 lines/mm yes yes
Automatic contrast (threshold) control yes yes
Reports
TCR yes yes
Transmission Report yes yes
Quick dial list yes yes
Speed dial list yes yes
Group dial list yes yes
Error report yes yes
1-2

Features FAX220 FAX240
Rejected Call Report in Authorized Reception yes yes
Stored document list yes yes
Power failure report no yes
SAF features (9 pages memory)
SAF capacity in kbytes no 128 (256 if ECM
off)
Memory transmission no yes
Serial broadcasting no yes
Substitute reception no yes
Forwarding (1 number) no yes
File confirmation/clearance no yes
Automatic page retransmission in memory tx no yes (if ECM on)
Remaining memory indication on LCD (during scanning) no yes
Group dial no yes
Telephone features
Built-in handset yes yes
On-hook dial yes yes
Monitor speaker yes yes
Music on hold yes yes
Speakerphone no no
AI Redial (last 5 numbers) yes yes
12 key dialpad yes yes
Volume control for speaker yes yes
Volume control for ringer yes yes
Power down function (Ring, Dial, Speech) yes yes
FAX/PHONE switch
Auto receive/manual receive switch yes yes
Auto answer delay time adjustment no no
Automatic fax/tel switch yes yes
Speech generation (AVM) yes yes
Interfaces
Telephone answering machine (TAM) interface yes yes
PC interface no no
Others
Copy mode (normal, detail, fine, halftone) yes yes
Time indicator yes yes
Clock adjustment yes yes
LCD display prompt yes yes
LCD size 2 x 20 2 x 20
Battery backed-up RAM size in kbytes 32 32
Service features
Remote diagnostics yes yes
Printer test pattern yes yes
Bit switch setting yes yes
ROM/RAM data display/list yes yes
NCU parameter setting yes yes
Pulse width setting no no
Service report (last 10 errors) yes yes
Service counters yes yes
1-3

1-3. Detailed Features Description
1-3-1. Auto Select Mode
There are three reception modes, AUTO, TAM and FAX, one of which can be programmed in the Auto Select key
on the operation panel using function 04 ‘‘SET FAX SWITCH’’.
AUTO mode allows the machine to capture the line without any rings being heard by the users. Then, the machine
starts to detect CNG for about 30 s while sending back ring-back tone or AVM (Artificial Voice Message) in one or
two languages selected by the user. After that, it automatically receives the fax message or, if CNG is not detected,
it calls the user by ringing from the speaker.
TAM mode allows connection to telephone answering machines (TAM) connected on the same line. There are two
types of TAM interface software used depending on the connection between the machine and the telephone an-
swering machine.
The first type of TAM interface is used in the countries where the TAM is connected to the machine as an external
device. When the external device captures the line, the machine detects dc at the LIU. Then, the machine starts lis-
tening to the line. If the machine detects one or two CNG signals or a period of silence, the machine will capture the
line and send CED/NSF/DIS to receive a fax message.
The second type of TAM interface is prepared for the countries (e.g., Germany) where the machine is connected to
the TAM as an external device. In this case, the machine cannot detect dc when the TAM goes off-hook. So, it moni-
tors the ringing signal. After the programmed number of rings, the machine listens to the line for about 30 s. If the
machine detects one or two CNG signals, the machine will capture the line and send CED/NSF/DIS to receive a fax
message. With the second type of TAM interface, the machine cannot receive fax messages from machines which
do not send a CNG.
FAX mode allows the machine to receive all incoming fax messages.
1-3-2. Authorized Reception
The machine automatically stores in RAM the TSI (or RTI) from the terminals programmed in the Quick Dials and
Speed Dials, once the user sends a document to these terminals. Then, if Authorized Reception is switched on, the
machine compares the TSI from the remote terminal with these TSIs memorized in the RAM, when the machine re-
ceives a fax call from any terminal. So, Authorized Reception prevents reception from terminals which are not pro-
grammed in the Quick/Speed Dials.
If an unauthorized sender sends a fax message while this feature is switched on, the machine rejects the call and
notifies the users by printing a rejection report with the unauthorized sender’s TSI or RTI.
1-3-3. Automatic Tx Speed Updating (AI Dial)
The machine memorizes the last five modem speeds that were used during transmission to the Forwarding terminal
and each destination programmed in the Quick/Speed dials. Then, the machine chooses the most appropriate mo-
dem speed from the record for the next transmission, in order to reduce the time for modem rate fallback (approx. 5
s). This feature works only when the machine has more than two modem speed records fdor that destination. The
modem speed is recorded in the memory if there are no error pages during transmission. This feature can work with
other manufacturers’ terminals.
1-3-4. Page Retransmission in Normal Tx Mode - FAX240 only
In the normal transmission mode, the machine can retransmit failed pages as if in memory tx mode, if ECM is on.
While sending the document, the machine backs up the document in the ECM memory in case page retransmission
is needed. If the machine receives a negative code (RTN or PIN) after a page, the machine retransmits the whole
page from the ECM memory.
1-3-5. Forwarding - FAX240 only
The machine can forward all received messages to the programmed Forwarding terminal. You can program the
month, date and time for Forwarding to be switched on and for it to be switched off. Also, local printing of forwarded
messages can be switched on and off.
1-4

1-4. Exterior
1-4-1. Component Layout
1. Handset Cradle
This contains a
hook switch and a
ringer.
2. Telephone Handset
This contains a mi-
crophone and an
earphone.
3. ADF
Up to 5 pages can
be fed automatically.
4. Operation Panel
Refer to section 1-4-
2.
5. Printer Cover/Cover
Release Lever
To open the cover,
push the release
lever forward and
pull up the cover.
6. Copy Tray
7. Document Guide
8. Power Switch
9. Power Cord
10. Speaker Volume Con-
trol
11. Ringer Volume Control
12. Pulse/Tone Switch
13. GS/FS Switch
…Not used
14. Telephone Jack
15. Line Jack
6
7
5
34
2
1
9812 13 10 11 15 14
1
1-5

1-4-2. Operation Panel
No. Name Function
1
Power indicator Lights when the power is switched on.
Receive File indicator Lights when received messages are stored into memory because of a
printer problem. Up to 10 messages can be stored.
Check Display indicator Lights when the machine has a problem.
Replace Paper indicator Lights when the paper has been used up.
2Function key and three
softkeys Press to access a function in the function list, and choose one of the soft keys below the required instruction indicated on the LCD.
3Quick Dial keys Each of these keys can be programmed with a telephone number and a
label.
4
Auto Select key and indicator If it is not lit, Tel (manual receive) mode is selected.
If it is lit, either FAX (automatic receive) mode, AUTO (automatic Tel/Fax
switch) mode, or TAM (Telephone Answering Machine) mode is selected,
depending on the mode selected with function 04.
Resolution key and indicators Press this key to change the resolution. If neither of the Detail or Fine
indicators are lit, Standard resolution is selected.
Halftone key and indicator Press this key when you wish to send a photograph.
Speed Dial key Press this key to use a Speed Dial code.
Pause/Redial key Press this key when you want to enter a pause in a telephone number, or
when you want to redial one of the last five numbers dialed.
Clear key Press this during programming to erase the last character.
‘‘R’’(Recall) key* Press this key when you want to access the PSTN from behind a PBX
which requires the Flash Start method.
Hold/On Hook Dial key and
indicator* Press this key to dial without picking up the handset. Also, press this key to place the other party on hold during a telephone conversation.
5Dialpad* Dial using these keys and use to input characters during programming.
> > >
RICOH FAX 240
Receive
File
Power
Check
Display
Replace
Paper
Function
ABC D E
FGHIJ
Auto Select
Fine
Detail
Halftone
1
4
GHI
7
PRS
*
<0
2
ABC
5
JKL
8
TUV
3
DEF
6
MNO
9
WXY
#
>
Memory
Stop
Copy
Start
Speed Dial
Pause
Redial
Clear
R
DIAL NUMBER
THEN INSERT DOCUMENT
11:22AM
Hold
On Hook Dial
OPER
1 2
3
4 5 6
1-6

No. Name Function
6Memory key (FAX240 only) Press to use memory transmission.
Stop key Press to stop the machine and return it to standby mode.
Copy key Press to copy the document now in the feeder.
Start key Press to start sending or receiving a fax message.
The keys with an asterisk (*) can be used for making a telephone call if the main power is switched off.
1-7

2. PROGRAMMING, TESTING, AND PRINTING REPORTS
2-1. USER LEVEL PROGRAMMING
Function List
No. Function Brief Explanation
01 Quick Dial Programming Use to program a telephone number and a label in each Quick Dial
key.
02 Speed Dial Programming Use to program a telephone number and a label in each Speed Dial
code.
03 Telephone List Printing Use to print the telephone list, which contains Quick Dials, Speed
Dials, and Groups.
04 Set Fax Switch Use to select the function of Auto Select mode from among AUTO mode (Auto Tel/Fax switch), TAM mode, and FAX mode (Automatic
Receive).
05 Send Later Use to program the machine to send a document at a later time.
06 Polling Transmission Use to set up a document to be polled from a remote terminal.
07 Polling Reception Use to program the machine to poll documents from remote terminals.
08 TCR Printing and On/Off Use to print a TCR or to set the machine up to print reception only on
the TCR.
09 Transmission Report On/Off Use to switch automatic Transmission Report output on or off.
10 Page Header (TTI) On/Off Use to switch the TTI printout on each transmitted page on or off.
11 Enter Page Header (TTI) Use to program the TTI.
12 Enter Your Name (RTI) Use to program the RTI.
13 Enter Your Fax Number (CSI) Use to program the CSI.
14 Clock Adjustment Use to adjust the date and time.
15 Set PBX Use to program the machine for the actual PBX type.
16 ID Code Programming Use to program the ID code, which is used for secured polling and the closed network feature (closed network can only be switched on in
service mode).
17 Key Touch Tone On/Off Use to switch the key touch tone off or on.
18 RDS On/Off Use to switch RDS on or off. This function cannot be accessed by the users, unless bit 6 of bit
switch 1 is set to 1 by RDS installation operation or by service later.
19 Set Language Use to change the LCD and report language.
20 Authorized Reception On/Off Use to prevent reception from terminals other than those programmed
in the Quick/Speed Dials.
21 Reviewing Stored Documents Use to review the documents stored in the memory.
22 Forwarding Use to program the machine to forward received messages to a
programmed terminal.
23 Group Dial Programming Use to make dialing groups (up to 5 groups can be made).
24 ECM On/Off Use this to switch ECM on or off.
2-1

2-2. SERVICE LEVEL OPERATION
2-2-1. Entering and Exiting Service Mode
ENTERING SERVICE MODE
Press Start →Stop →Start →Stop →Start sequentially within 5 seconds.
After entering service mode, the following service functions are available.
No. Function Brief Explanation
Functions 30 to 38 are mainly prepared for factory use.
30 RAM Test Use to test the SRAM and DRAMs on the FCE.
31 Key Test Use to test all keys on the operation panel.
32 LED Test Use to test all LEDs on the operation panel.
33 LCD Test Use to test the LCD on the operation panel.
34 Speaker Test Use to test the monitor speaker.
35 Printer Test Use to print a test pattern.
36 PTT Test Use to test the modem signals, DTMF tones, and transmission level.
37 Frequency Test Use to generate signals of the desired frequency and level.
38 Burn-in Test Do not use this function. If this function is used, the RAM will all be
cleared.
The following functions are prepared for service use.
40 Factory Adjustment Use to check the ROM version, to adjust the tx level and to clear the
RAM.
41 Not used
42 Not used
43 Bit Switch Programming Use to change the bit switch settings.
44 Scanner Adjustment Mode Use to switch on the LED array for scanner adjustment.
91 Display ROM/RAM Data Use to display and change the ROM/RAM data.
92 Print System Report Use to print the system report.
93 Print ROM/RAM Data Use to print ROM/RAM data.
94 Not used
95 Print Service Report Use to print the service report.
96 Not used
97 Not used
98 NCU Parameter Programming Use to adjust the NCU parameters.
EXITING SERVICE LEVEL
Press Stop, Function, or EXIT at any time.
The machine will automatically exit service mode 40s after you enter it.
Note: In the functions, the new settings will not be saved by pressing the Function key. To save the new set-
tings, you have to press ‘‘SET’’ or ‘‘OK’’, then exit the service mode.
2-2

2-2-2. RAM Test (Function 30)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 30, then press SET.
3. The machine starts to check the SRAM and the two DRAMs without clearing any RAM data stored.
If the RAM test succeeded, the machine prints ‘‘RAM TEST OK’’, and goes to the Key Test.
If the RAM test failed, the machine displays ‘‘RAM ERROR AT ##AAAA’’ (## = type of RAM; AAAA = address)
for 3 s, then ‘‘RAM TEST FAILED’’ is printed
(Type of RAM: 09 = SRAM, 00 - DRAM0, 10 - DRAM1)
After this test, the machine automatically goes into function 31.
2-2-3. Key Test (Function 31)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 31, then press SET.
3. The display shows the name of a key. If the key is pressed the display shows the next one until the last key ‘‘J’’
is pressed.
If the key test was successful, the machine prints ‘‘KEY TEST OK’’.
If the key test was failed or aborted, the machine prints ‘‘KEY TEST FAILED.
After this test, the machine automatically goes to the LED test.
Display Key Display Key Display Key
1 through # Keys in the
dialpad ONL On Hook Dial CLR Clear
SPE Speed Dial FUN Function FIN Detail/Fine
MLT Memory LEF Softkey (Left) STO Stop
AUT Auto Select MID Softkey (Middle) CPY Copy
RED Redial RIG Softkey (Right) STA Start
HOL R PHO Halftone A through J Quick Dial keys
2-2-4. LED Test (Function 32)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 32, then press SET.
3. All the LEDs on the operation panel blink sequentially until OK or ERROR is pressed.
If OK is pressed, the machine prints ‘‘LED TEST OK’’ and goes to the LCD test.
If ERROR is pressed, the machine prints ‘‘LED TEST FAILED’’, and goes to the LCD test.
2-2-5. LCD Test (Function 33)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 33, then press SET.
3. The two lines on the LCD alternately show a line of solid black characters until OK or ERROR is pressed.
If OK is pressed, the machine prints ‘‘LCD TEST OK’’ and goes to the Speaker Test.
If ERROR is pressed, the machine prints ‘‘LCD TEST FAILED’’, and goes to the Speaker Test.
2-3

2-2-6. Speaker Test (Function 34)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 34, then press SET.
3. The machine emits a tone from the speaker until OK or ERROR is pressed.
If OK is pressed, the machine prints ‘‘VOL TEST OK’’ and goes to the Printer Test.
If ERROR is pressed, the machine prints ‘‘VOL TEST FAILED’’ and goes to the Printer Test.
2-2-7. Printer Test (Function 35)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 35, then press PRINT.
3. A test pattern with diagonal lines is printed. After printing, the machine goes to standby mode.
2-2-8. PTT Test (Function 36)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 36, then press SET.
3. Press ‘‘MDM’’ for modem test, ‘‘DTMF’’ for DTMF test, or ‘‘LEV.’’ for tx level adjustment.
4.1 Modem Test
The test starts from silence (the machine only goes off-hook), then by pressing the # key consecutively, the sig-
nal changes to 9,600bps - 7,200bps - 4,800bps - 2,400bps - 300bps - 600Hz - 1100Hz - 2100Hz. (Press the *
key to go backwards through the sequence.)
After you have finished the test, press Stop to go back to step 3.
4.2 DTMF Test
Press a key on the dialpad (0 - 9, * and #) to test the DTMF signal.
After you have finished the test, press Stop to go back to step 3.
Note that the machine will emit a DTMF signal of the correct length for the country code, even if the slide
switch on the rear of the machine is not set at ‘‘Tone’’.
If you wish to get a continuous DTMF tone, set the slide switch at ‘‘Tone’’, switch off the power, then press the
required key on the dialpad.
4.3 Tx Level Adjustment
The current tx level setting is displayed in the upper right corner of the LCD. To change the setting, press # to
increment or press * to decrement. After adjustment, press Stop to save the setting.
2-2-9. Frequency Test (Function 37)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 37, then press SET.
3. The machine emits a sine wave of the displayed frequency. The frequency can be changed in units of 100Hz
by pressing # (increment) or * (decrement). Also, the output level can be changed by pressing LEV.
2-2-10. Burn-in Test (Function 38)
Do not use this function.
2-4

2-2-11. Factory Adjustment (Function 40)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 40, then press SET.
The upper line on the LCD shows the ROM version ‘‘VER x.xx dd.mm.yy c’’ (x.xx = version, dd.mm.yy = date, c
= country setting). The lower line on the LCD shows ‘‘CLK 0.LEV RAMC’’.
3. Press RAMC for RAM clear.
4.1 Clock Oscillator Adjustment
This function is not for service.
WARNING: Do not use this function.
4.2 Tx Level Fine Adjustment
This function is not for service.
WARNING: Do not use this function.
4.3 RAM Clear
RAM is all reset to the initial settings and the CPU is restarted.
WARNING: With this function, all the previous settings will be reset to the initial settings for Hong Kong.
Program the correct country code after clearing the RAM (bit switch 2; see section 3-1).
2-2-12. Bit Switch Programming (Function 43)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 43, then press SET.
3. The setting of bit switch 0 is displayed.
To change the setting of a bit, press the bit number on the dialpad (0 - 7). Press < or > to display other bit
switches.
4. To store the new setting, press OK.
Important Notice for Back-to-Back Mode (Bit Switch 0, Bit 7)
When in back-to-back mode, you cannot enter service mode unless you exit back-to-back mode first. This is be-
cause the machine starts communication if you press Start - Stop - and so on while you are in back-to-back mode.
To exit back-to-back mode, do the following:
1. Make sure that the machine is not communicating.
2. Press Halftone to light the Halftone LED, then press Stop.
3. Enter the service mode.
4. After finishing with service mode, re-enter back-to-back mode if required.
2-2-13. Scanner Adjustment (Function 44)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 44, then press SET.
3. The LED array is switched on until ‘‘OK’’ is pressed. Refer to section 4-5 for more details on scanner adjust-
ment.
2-5

2-2-14. Display and Rewrite ROM/RAM Data (Function 91)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 91, then press SET.
3. The upper line on the LCD shows ‘‘ADD: aaaa VAL: ddd/hh’’ (aaaa = address, ddd = decimal value of the data,
and hh = hexadecimal value of the data).
4. Select the address where the data you want to display or change is stored, using keys 0 through 9 and Quick
Dial keys A through F, or using the * key to decrement the address and the # key to increment the address.
5. Press EDIT if you want to rewrite the data.
6. Rewrite the data in the hexadecimal data field. (The ‘‘<’’ and ‘‘>’’ keys are used to move the cursor in the data
field.)
7. Press OK to save the new data.
8. Press Stop to exit this function or go back to step 3 to change another address.
2-2-15. System Report (Function 92)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 92, then press PRINT. The system report will be printed.
2-2-16. Print ROM/RAM Data (Function 93)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 93, then press SET.
3. Enter the start address then press OK.
The address field has 5 digits, as the first digit is used for bank identification and the following 4 digits are for
the actual address. Use the bank identification number ‘‘0’’ for addresses 0000 - 3FFF(H) and C000 - FFFF(H),
and ‘‘9’’ for addresses 4000 - 7FFF(H).
4. Enter the end address then press OK. The machine prints a list of ROM/RAM data in the selected address
range.
2-2-17. Service Report (Function 95)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 95, then press PRINT. The service report will be printed.
2-2-18. NCU Parameter Programming (Function 98)
1. Enter the service mode (see section 2-2-1).
2. Press Function, enter 98, then press SET.
3. The upper line on the LCD shows ‘‘ADD: aa VAL: ddd/hh’’ (aa = parameter number, ddd = decimal value of the
data, and hh = hexadecimal value of the data).
4. Select the required parameter number with keys 0 through 9, or press # or * to scroll through the parameters.
5. Press EDIT if you want to change the data.
6. Rewrite the data in the decimal data field. (The ‘‘<’’ and ‘‘>’’ keys are used to switch the cursor between the ad-
dress and data fields, and the * and # keys are used to decrement/increment the data value.)
Refer to section 3-2-1 (address 0377 - 0381 (H)) for the definition of NCU parameters.
2-6

3. SERVICE TABLES
3-1. BIT SWITCHES
WARNING
Do not adjust a bit switch that is described as "Not used", as this may cause the machine to
malfunction or to operate in a manner that is not accepted by local regulations.
Bit Switch 0FUNCTION SETTINGS COMMENTS
0Not used
1Rx cable equalizer 0: Disabled
1: Enabled Set this bit to 1 when there is a serious signal loss at higher frequencies during reception. The cable
equalizer will amplify the signal in this range by +3
dBm.
2DIS detections 0: Once
1: Twice The machine will send DCS (G3 set-up signal) if it receives DIS. If echoes are frequent, setting this bit
to 1 will allow the machine to wait for the second DIS
before sending DCS.
3TSI (RTI) printout on
received copies 0: Disabled 1: Enabled If this bit is 1, the TSI or RTI received from the sender will be printed on the top of each page.
4Burst error threshold/
error line ratio 0: 6 (12) [24] lines/10% 1: 3 (6) [12] lines/5% If there are more consecutive error lines in the received page than the threshold specified by this bit,
the page is rejected. Values in parenthesis ( ) are for
Detail resolution, and those in square brackets [ ] are
for Fine resolution.
Also, if the number of error lines divided by the total
number of lines reaches the ratio determined by this
bit, the machine will send RTN to the other end.
If you want to receive messages with fewer error
lines, set this bit to 1.
5Training error threshold 0: 4 bits
1: 1 bit If the machine detects more errors during training than the number set by this bit, training fails and the
machine will send FTT to ask the other terminal for
modem rate shift-down.
Set this bit to 1 if you want to receive messages at a
more reliable modem speed.
6Initial Rx modem rate 0: 9,600 bps
1: 4,800 bps The setting of this bit is used to inform the sending machine of the initial starting modem rate for the
machine in receive mode. If 9,600 bps presents a
problem during reception, use 4,800 bps.
7Back to back test 0: Disabled
1: Enabled Set this bit to 1, when you want to test a back-to- back communication.
Important Notice for Back-to-Back Mode
When in back-to-back mode, you cannot enter service mode unless you exit back-to-back mode first. This is be-
cause the machine starts communication if you press Start - Stop - and so on to enter service mode while you are
still in back-to-back mode.
Refer to the notice in section 2-2-12 for how to exit back-to-back mode.
3-1

Bit Switch 1FUNCTION SETTINGS COMMENTS
0Reconstruction time for
the first line 0: 6 seconds 1: 10 seconds When the sending terminal is controlled by a computer, there may be a delay in receiving page
data after the local machine accepts set-up data and
sends CFR. If this occurs, set this bit to 1 to give the
sending machine more time to send data.
1Substitute reception file
forwarding (FAX240 only) 0: Normal operation 1: Forward all files Set this bit to 1 if the printer is out of order. The machine will forward all files to the Forwarding
terminal.
2ECM
transmission/reception
(FAX240 only)
0: Enabled
1: Disabled Set this bit to 1 when you want to switch off ECM.
3PSTN/PBX dial tone and
busy tone detection 0: Enabled 1: Disabled Set this bit to 1 when you wish to disable tone detection.
4Closed network in
reception 0: Disabled 1: Enabled Set these bits to 1 to switch on Closed Network. With Closed Network, communication will not go
ahead if the ID code of the other terminal does not
match the ID code of this terminal.
The ID code has to be programmed with function 16
before switching on these bits.
This feature may not be reliable when
communicating with another maker’s machine.
5Closed network in
transmission 0: Disabled 1: Enabled
6Remote read/write request 0: Always enabled
1: User selectable 0: RDS is always enabled. The user cannot switch it off.
1: If a technician or RDS operator sets this to 1 after
installation, the user can select either ‘‘ON for 24
hours’’ or ‘‘OFF’’.
7Communication
parameter display and
line monitoring after
handshaking
0: Disabled
1: Enabled This is a fault-finding aid. If this bit is set to 1, the LCD shows the key parameters (see below) and the
speaker is enabled during message transmission and
reception.
This should be normally disabled because it cancels
the CSI/TSI (RTI) display for the user.
Modem rate
(bps) Sub-scan resolution
(lines/mm)
Coding Width and
reduction Mode I/O rate (ms/line)
96: 9,600
72: 7,200
48: 4,800
24: 2,400
S: 3.85
D: 7.7
F: 15.4
1D: MH
2D: MR
1E: MH + EFC
2E: MR + EFC
1S: MH + SSC
2S: MR + SSC
1C: MH + ECM
2C: MR + ECM
MC: MMR + ECM
A: A4
N: No reduction DCS: CCITT G3 NSS:
Non-standard G3
0M: 0
5M: 5
10M: 10
20M: 20
40M: 40
3-2

Bit Switch 2FUNCTION SETTINGS COMMENTS
0Country code
Bit 4 3 2 1 0 Country
1 0 0 0 1 USA
1 0 1 0 0 Hong Kong
1 0 1 0 1 Australia
1 0 1 1 0 New Zealand
1 0 1 1 1 Israel
1 1 0 0 0 Thailand
1 1 0 0 1 Singapore
1 1 0 1 0 Indonesia
Set the country code after clearing the RAM.
1
2
3
4
5TAM interface type 0: Normal
1: German type 0: The normal type of TAM interface monitors the line current on the LIU, to detect whether the external
TAM goes off-hook or on-hook.
1: The German type of TAM interface does not
monitor the line current on the LIU, because the TAM
and the fax are connected in parallel to the line.
Refer to section 1-3-1 for more details.
6TAM (Telephone
Answering Machine)
interface
0: Enabled
1: Disabled If this bit is 1, TAM mode cannot be selected with function 04 by the user.
7Not used
Default Settings
Bit Switch H501/502-50 H501/502-51 H501/502-52 H501/502-53 H501/502-54 H501/502-55
000 00 00 00 00 00
100 00 00 00 00 00
214 15 16 1A 17 11
3-3

3-2. USEFUL RAM ADDRESSES
In the equations that occur in the following tables, N represents the decimal value stored in the RAM address.
WARNING
Changing any RAM data that are not listed in this table may cause the machine to malfunction.
3-2-1. Address Table
Use service function 91 to view or adjust the contents of a RAM address. See section 2-2-14 for details.
Address (Hex) Function
0000 - 0002 Bit switches 00 to 02 (0000 = Bit switch 00, 0001 = Bit switch 01, and so on); refer to section 3-1
for details.
0009
User function parameters
Bit 7: Transmission Report On/Off [Function 09] (1: On)
Bit 6: TTI (Page Header) On/Off [Function 10] (1: On)
Bit 5: Key Touch Tone On/Off [Function 17] (1: On)
Bit 4: RDS On/Off [Function 18] (1: On for 24 hours)
Bit 3: AM/PM Indication on LCD clock Note 1 (1: On)
Bit 2: Forwarding On/Off [Function 22] Note 2 (1: On)
Bit 1: Forwarding Mode [Function 22] Note 2 (0: Now or Later mode, 1: Daily mode)
Bit 0: Forwarding File Local Printing On/Off [Function 22] (1: On)
000A
User function parameters
Bit 7: Communication record listing on TCR [Function 08] (1: On)
Bit 6: Authorized Reception On/Off [Function 20] (1: On)
Bits 5 through 0: Not used
0039 Exchanger type connected to the machine Bit 2 = 0: PSTN
Bit 2 = 1: PBX
0300 - 0302: Line current detection parameters
0300 Line current detection time [Time = N x 10 (ms), detection disabled if N = FF]
0301 Line current reset time [Time = N x 20 (ms)]
0302 Line current dropout detection time [Time = N x 10 (ms)]
0303 - 0320: PSTN tone detection parameters
0303 - 030E Modem data for PSTN dial tone frequency range
Caution: Do not adjust.
030F PSTN dial tone detection time [Time = N x 20 (ms), detection disabled if N = FF]
0310 PSTN dial tone reset time [Time = N x 0.16 (s)]
0311 PSTN dial tone continuous tone time [Time = N x 20 (ms)]
0312 PSTN dial tone permissible dropout time [Time = N x 20 (ms)]
0313 PSTN pause time [Time = N x 0.16 (s)]
0314 PSTN ringback tone detection time [Time = N x 20 (ms), detection disabled if N = FF]
0315 - 0320 Modem data for PSTN busy tone frequency range
Caution: Do not adjust.
0321 - 033E: PBX tone detection parameters
0321 - 032C Modem data for PBX dial tone frequency range
Caution: Do not adjust.
032D PBX dial tone detection time [Time = N x 20 (ms), detection disabled if N = FF]
032E PBX dial tone reset time [Time = N x 0.16 (s)]
032F PBX dial tone continuous tone time [Time = N x 20 (ms)]
3-4

Address (Hex) Function
0330 PBX dial tone permissible dropout time [Time = N x 20 (ms)]
0331 PBX pause time [Time = N x 0.16 (s)]
0332 PBX ringback tone detection time [Time = N x 20 (ms), detection disabled if N = FF]
0333 - 033E Modem data for PBX busy tone frequency range
Caution: Do not adjust.
033F - 0348: Busy tone detection parameters
033F Busy tone ON time (range 1) [Time = N x 10 (ms)]
0340 Busy tone OFF time (range 1) [Time = N x 10 (ms)]
0341 Busy tone ON time (range 2) [Time = N x 10 (ms)]
0342 Busy tone OFF time (range 2) [Time = N x 10 (ms)]
0343 Busy tone ON time (range 3) [Time = N x 10 (ms)]
0344 Busy tone OFF time (range 3) [Time = N x 10 (ms)]
0345 Busy tone ON time (range 4) [Time = N x 10 (ms)]
0346 Busy tone OFF time (range 4) [Time = N x 10 (ms)]
0347 Continuous busy tone detection time [Time = N x 10 (ms)]
0348
Bits 0 to 3: Busy tone signal state time tolerance (for all ranges)
Bit 3 2 1 0 Tolerance
0 0 0 1 ±50%
0 0 1 0 ± 25%
0 0 1 1 ± 12.5%
Bits 4 to 7: Number of cycles required for detection
0349 - 0359: International dial tone detection parameters
0349 - 0354 Modem data for international dial tone frequency range
Caution: Do not adjust.
0355 International dial tone detection time [Time = N x 20 (ms), detection disabled if N = FF]
0356 International dial tone reset time [Time = N x 0.16 (s)]
0357 International dial tone continuous tone time [Time = N x 20 (ms)]
0358 International dial tone permissible dropout time [Time = N x 20 (ms)]
0359 International dial pause time [Time = N x 0.16 (s)]
035A - 036A: National dial tone detection parameters
035A - 0365 Modem data for domestic dial tone frequency range
Caution: Do not adjust.
0366 National dial tone detection time [Time = N x 20 (ms), detection disabled if N = FF]
0367 National dial tone reset time [Time = N x 0.16 (s)]
0368 National dial tone continuous tone time [Time = N x 20 (ms)]
0369 National dial tone permissible dropout time [Time = N x 20 (ms)]
036A National dial pause time [Time = N x 0.16 (s)]
036B - 036C International dial access number
Example: If the number is 100, store F1 in address 036B, and 00 in address 036C.
036D PBX operator pause [Time = N x 20 (ms)]
036F CCITT T1 time [Time = N x 2.56 (s)]
0370 Maximum number of dialing attempts to the same station in normal tx mode
0371 Redial interval in normal tx [Time = N (minutes)]
0372 Maximum number of dialing attempts to the same station in memory tx mode
0373 Interval between dialing to different stations [Time = N x 2.56 (s)]
0374 Dial tone detection level [Level = 0 - N x 0.375 (dBm)]
0375 Busy tone detection level [Level = 0 - N x 0.375 (dBm)]
0376 Minimum signal detection level [Level = 0 - N x 0.375 (dBm)]
3-5

Address (Hex) Function
0377 - 037B: Ringing signal detection parameters (Use function 98 to change)
0377 NCU Parameter 00: Acceptable ringing signal frequency, upper limit
[Frequency = 1/(N x 10-3) (Hz)]
0378 NCU parameter 01: Acceptable ringing signal frequency, lower limit
[Frequency = 1/(N x 10-3) (Hz)]
0379 NCU parameter 02: Number of rings until a call is detected [Number = N x 1]
037A NCU parameter 03: Minimum required length of a ring [Length = 20 x N (ms)]
037B NCU parameter 04: Minimum required length of an interval between rings [Length = 40 x N (ms)]
037C - 037D: Pulse dial parameters (Use function 98 to change)
037C NCU parameter 05: Time between closing the dc loop and the first dialed digit [Time = N (ms)]
037D NCU parameter 06: Pause between dialed digits (pulse dial mode) [Time = N x 20 (ms)]
037E NCU parameter 07: Time waited when a pause is entered at the operation panel [Time = N x 20
(ms)] 037F - 0380: Tone dial parameters (Use function 98 to change)
037F NCU parameter 08: DTMF tone length [Time = N x 5 + 60 (ms)]
0380 NCU parameter 09: Time between dialed digits (DTMF dial mode) [Time = N x 5 + 60 (ms)]
0381 NCU parameter 10: Modem transmission level [Level = - N (dBm)]
0382 Language selected for LCDs and reports
0(D): English 1(D): Spanish 3(D): French
0386 Redial interval for memory transmission [ N x 1 (min.)] (Default: 5 minutes)
0387 - 0388 Intercity access code for France: 16(D) [0386 = FF(H), 0387 = 16(BCD)]
039A Ringing time in Auto mode [Time = N (s)]
The value of N should be a multiple of 5 between 5 and 25.
039E - 03A1: CNG detection parameters
039E Maximum acceptable CNG OFF-time [Time = N x 20 (ms)] Note 3
039F Minimum acceptable CNG OFF-time [Time = N x 20 (ms)] Note 3
03A0 Maximum acceptable CNG ON-time [Time = N x 20 (ms)] Note 3
03A1 Minimum acceptable CNG ON-time [Time = N x 20 (ms)] Note 3
03A2 Country code
11: USA 14: Hong Kong 15: Australia 16: New Zealand 17: Israel 18: Thailand
19: Singapore 1A: Indonesia
03C5
Mode selection in Auto Select mode
Bit 3 2 1 0 Mode
0 0 0 1 Auto Tel/Fax switch with AVM
0 0 1 0 Auto Tel/Fax switch with ringback tone
0 0 1 1 Semi-Auto (TAM) mode
0 1 0 0 Fax mode
03C9 Continuous silent period detection time in TAM mode [Time = N x 65 (ms)]. See Note 4.
03CA PSTN access code from behind Loop Start PBX (BCD)
03CF Number of rings until a call is detected in TAM mode [N (times)]
20A1 Forwarding start date and time Minute (BCD)
20A2 Forwarding start date and time Hour (BCD)
20A3 Not used
20A4 Forwarding start date and time Day (BCD)
20A5 Forwarding start date and time Month (BCD)
20A6 Forwarding start date and time Year (BCD)
20A7 Forwarding end date and time Minute (BCD)
20A8 Forwarding end date and time Hour (BCD)
20A9 Not used
3-6