Sharp FO-2970M User manual

FO-2970MU
FO-2970MU FO-2950MU
Control PWB DCEKC182PSCZZ DCEKC388NSCZZ
TEL/LIU PWB DCEKL259CSC01 DCEKL222CSC01
Modem speed 33,600 bps 14,400 bps
No. 00ZFO2970USME
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintain-
ing the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
SERVICE MANUAL
Laser Wave Length : 780 ±15 nm
Laser Pulse Times : (13.95 ±3 µs)/7mm
Laser Output Power : 0.4 mW ±0.05mW
CAUTION
This laser facsimile is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 of the CDRH or IEC60825-1 standard.
This means that this machine does not produce a hazardous laser radiation. The use of controls, adjustments or performance of
procedures other than those specified herein may result in hazardous radiation exposure.
This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achieved on the eyes retina, there is
danger of spot damage to the retina.
The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time of servicing.
1) When a problem in the laser optical unit has occurred, the whole optical unit must be exchanged as a unit, not an individual part.
2) Do not look into the machine with the main switch turned on after removing the toner/developer unit and drum cartridge.
3) Do not look into the laser beam exposure slit of the laser optical unit with the connector connected when removing and installing
the optical system.
4) The cover of Laser Printer Unit contains the safety interlock switch.
Do not defeat the safety interlock by inserting wedges or other items into the switch slot.
FACSIMILE
MODEL FO-2970M
Difference between FO-2970MU and FO-2950MU
Chapters 1, 3, 7 and 8 of this manual are omitted because they are partly common to the FO-2950MU. Please refer to
previous service manual UX-4000MU/FO-2950MU/C (00ZUX4000USME) for these chapters.
SELECTION CODE DESTINATION
U U.S.A.

FO-2970MU
CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
[3] Refer to the service manual of FO-2950MU
[4] Refer to the service manual of FO-2950MU
[5] Refer to the service manual of FO-2950MU
[6] Refer to the service manual of FO-2950MU
[7] Refer to the service manual of FO-2950MU
CHAPTER 2. ADJUSTMENTS
[1] Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[2] Diagnostics and service soft switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
[3] Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
[4] Error code table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
CHAPTER 3. MECHANICAL DESCRIPTION
[1] Refer to the service manual of FO-2950MU
[2] Refer to the service manual of FO-2950MU
CHAPTER 4. DIAGRAMS
[1] Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[2] Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
[3] Point-to-point diagram and connector signal name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
[2] Circuit description of control PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
[3] Circuit description of TEL/LIU and Hook SW PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
[4] Circuit description of power supply PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
[5] Circuit description of CIS UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Control PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[2] TEL/LIU and Hook SW PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
[3] Printer PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
[4] Power supply PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
[5] Operation panel PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
CHAPTER 7. OPERATION FLOWCHART
[1] Refer to the service manual of FO-2950MU
[2] Refer to the service manual of FO-2950MU
CHAPTER 8. OTHERS
[1] Refer to the service manual of FO-2950MU
[2] Refer to the service manual of FO-2950MU
PARTS GUIDE

1 – 1
FO-2970MU
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications
• GENERAL
* Based on ITU-T Test Chart #1 at standard resolution in Sharp special
mode, excluding time for protocol signals (i.e., ITU-T phase C time
only).
Automatic dialing Rapid Key Dialing: 20 numbers
Speed Dialing: 100 numbers
Memory size* 4 MB (approx. 300 pages)
Modem speed 33,600 bps (max.)
Automatic fallback to lower speeds.
Transmission time* Approx. 3 seconds
Toner cartridge yield Initial starter cartridge (included with
(4% page coverage, letter paper) fax machine): Approx. 1,875 pages
Replacement cartridge (FO-29ND):
Approx. 3,750 pages
Drum cartridge yield Initial starter cartridge (included with
fax machine): 20,000 pages (avg.)
Replacement cartridge (FO-29DR):
20,000 pages (avg.)
Scanning resolution Fax/copy:
Horizontal: 203 pels/inch (8 pels/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)
PC: Enhanced 600 dpi
Automatic document 20 pages max. (20-lb. letter paper)
feeder
Halftone (grayscale) 64 levels (PC scan: 256 levels)
Paper tray capacity 200 sheets (20-lb. letter paper)
Compression scheme MMR, MR, MH, Sharp (H2)
Applicable telephone line Public switched telephone network
Compatibility ITU-T (CCITT) G3 mode
Printing resolution Horizontal: 406 lines/inch (16 lines/mm)
Vertical: 391 lines/inch (15.4 lines/mm)
PC Printing: 600 dpi (enhanced 1,800 dpi)
Input document size Automatic feeding:
Width: 5.8 to 8.5" (148 to 216mm)
Length: 5.5 to 11" (140 to 279mm)
Manual feeding:
Width: 5.8 to 8.5" (148 to 216mm)
Length:5.5 to 39.4" mm (140 to 1,000mm)
Effective Scanning width 8.3" (210 mm) max.
Effective Printing width 8.0" (208 mm) max.
Reception modes Fax/Tel/A.M.
Scanning speed 8 ppm (letter paper)
Full Dual Access Yes
Copy function Single/Multi/Sort (99 copies/page)
Power requirements 120 V AC, 60 Hz
Operating temperature 50 - 86°F (10 - 30°C)
Humidity 20 to 85% RH
Power consumption Standby: 8.1 W
Maximum: 650 W
Dimensions Width: 15.2" (386 mm)
Depth: 15.7" (398 mm)
Height: 6.7" (169 mm)
Weight Approx.13.8lbs.(6.3kg)
Important:
• Thisfacsimile machine isnot designed foruse on aline which hascall
waiting, call forwarding, or certain other special services offered by
your telephone company. If you attempt to use the fax machine in
conjunction with any of these services, you may experience errors
during transmission and reception of facsimile messages.
• This facsimile machine is not compatible with digital telephone sys-
tems.
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.

1 – 2
FO-2970MU
[2] Operation panel
1
2
3
4
5
6
7
8
9
10
11
SPEED DIAL key
Press this key to dial a fax or voice number using an
abbreviated 2 digit Speed Dial number.
REDIAL key
Press this key to automatically redial the last number dialed.
PAPER CHECK indicator
This lights when the paper tray is out of paper, the paper has
jammed, the printer compartment cover is open, or a paper
size error has occurred.
TONER EMPTY indicator
This blinks when the toner cartridge nears empty and lights
steadily when the toner cartridge needs replacement.
Display
This displays messages and prompts during operation and
programming.
Panel release
Grasp this release and pull toward you to open the operation
panel.
PC IN USE light
This blinks when data is being sent to or from the computer
connected to the fax machine.
LINE IN USE light
This lights when the fax machine is using the telephone line.
RECEPTION MODE key
Press this key to select the reception mode. An arrow in the
display will point to the currently selected reception mode.
FUNCTION key
Press this key to select special functions and settings.
RESOLUTION Keys
Press this key to adjust the resolution for faxing or copying.
VOLUME (UP/DOWN) keys
Press these keys to adjust the volume of the speaker when the
SPEAKER key has been pressed, the volume of the handset
when the handset is lifted, or the volume of the ringer at all
other times. The keys can also be used to scroll through
FUNCTION key settings.
12
SPEED
DIAL
REDIAL
SPEAKER
HOLD/
SEARCH
ABC 21 DEF 3
JKL 54 GHI MNO 6
TUV 87 PQRS WXYZ
9
0
PAPER
CHECK TONER
EMPTY PC IN USE LINE IN USE
REDUCTION/
ENLARGEMENT
COPY/HELP
START STOP
TEL FAX A.M. FUNCTION VOLUME
DOWN UP
RECEPTION
MODE
RESOLUTION BROADCAST
01 02 03 04
08070605
12111009
16/POLL
15
14
13
20/G419/G318/G217/G1
1 2 3 4 7 8 9 13
14151620 1921 171822
10 11 125 6
13
14
15
16
17
18
19
20
21
22
BROADCAST key
Press this key to send a document to a group of receiving fax
machines.
Rapid Dial Keys
Press one of these keys to dial a fax number automatically, or
send a document as an E-mail attachment to a preset E-mail
address.
E-MAIL key
Press this key to send a document as an E-mail attachment.
After you press the key, your specified E-mail program will
open to let you enter the E-mail address, a subject, and a
message if desired.
REDUCTION/ENLARGEMENT key
Press this key to select an enlargement or reduction setting
when making a copy of a document.
STOP key
Press this key to cancel an operation before it is completed.
START key
Press this key to begin transmission when using Speed Dialing,
Direct Keypad Dialing, or Normal Dialing.
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.
HOLD/SEARCH key
When dialing, press this key to search for an auto-dial fax
number. During a phone conversation, press this key to put the
other party on hold.
SPEAKER key
Press this key to listen to the line and fax tones through the
speaker when faxing a document.
Note: this is not a speakerphone. You must pick up the
handset to talk with the other party.
Number Keys
Use these keys to dial numbers, and enter numbers and letters
when storing auto-dial numbers.

FO-2970MU
2 – 1
CHAPTER 2. ADJUSTMENTS
[1] Adjustments
General
Sincethe following adjustments andsettingsare provided for thismodel,
make adjustments and/or setup as necessary.
1. Adjustments
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.
Output voltage settings
Fig. 1
Fig. 3
Printer PWB
1
CNPWCN101 12
1
12
Power
Supply
PWB
2. High voltage power adjustments
The high voltage power adjustments are composed of the MC output
voltage adjustment and the DC bias output voltage adjustment. Either
adjustment is performed with the diag function. (MAIN CHG ADJUST
MODE)
1 MC output voltage adjustment
In the measurement circuit shown below, adjust VR1 to be –1050V ~
–1200V (aim at –1100V)
MC
Measure with the high
voltage tester
(effective value meter). DRUM
• Capacitor: 1000pF/3KV (VCKYQY3FB102K)
• Diode: SHV-03 (VHDSHV03///-1)
Fig.2
VR1 (MC output voltage adjustment volume)
+
–
MC output
voltage check
Output Voltage limits
+5V 4.75V~5.25V
+24VH 23.04V~24.96V
+24V* 23.04V~24.96V
PIN No. Connector
No. CNPW
1 +5V
2DG
3DG
4 +24VH
5MG
6MG
7 +24VS
8 PWRLY–
9 HLON–
10 +24V
11 +24V
12 ZC

FO-2970MU
2 – 2
2
DC bias output voltage adjustment
Adjust VR2 so that the output voltage is –310V ±5V
For measurement, use the high voltage tester (effective value me-
ter).
VR1 (MC output voltage adjustment volume)
+
–
DC-Bias
Output voltage check
VR2
(DV bias output adjustment volume)
DC-Bias
Output voltage check
–
+
DRUM
DC-Bias
3 Transfer charger voltage check
After MC output voltage adjustment and DC bias output voltage ad-
justment, check transfer charger voltage.
Check that the output voltage is +3200V ~ +3700V.
For measurement, use a high voltage tester (effective value meter).
Transfer charger
Output voltage check
+
–DRUM
D7
D8
Note: For measurement, do not remove Printer PWB from the bottom
plate.
VR1 (MC output voltage adjustment volume)
+
–
Transfer changer
Output voltage check
Fig.3
Fig.4

FO-2970MU
2 – 3
3. IC protectors replacement
ICPs (IC Protectors) are installed to protect the TX motor drive circuit
and verification stamp drive circuit. ICPs protect various ICs and elec-
tronic circuits from an overcurrent condition.
The location of ICPs are shown below:
F100
CNMT
CNLIUA
CNSP
CNLIUB
CNPRT
CNRTH
CNFUSE
CNPN
CNCIS
IC6
(step 1) Select "OPTION SETTING".
DISPLAY:
DISPLAY:
DISPLAY: TONE SELECTED
KEY:
FUNCTION 4
KEY:
OPTION SETTING
PRESS or #
KEY:
DIAL MODE
1= TONE, 2= PULSE
KEY:
KEY:
DISPLAY:
(step 4) End, using the "STOP" key.
(step 3) Select, using "1" or "2".
(step 2) Select "DIAL MODE".
Push # until " DIAL MODE " is
indicated because the number of
# s changes by the models.
1
2
PULSE SELECTED
STOP
(1) F100 (ICPS10) is installed in order to protect IC’s from and
overcurrentgenerated in the verification stampdrive circuit. If F100
is open, replace it with a new one.
4. Settings
(1) Dial mode selector
OPTION SETTING: DIAL MODE (Soft Switch No. SW2 DATA No. 1)
Use this to set the fax machine to the type of telephone line you are on.
• The factory setting is "TONE".
Control PWB (Bottom side)
Fig.5

FO-2970MU
2 – 4
[2] Diagnostics and service soft switches
1. Operating procedure
Two kinds of diagnoses are supported.
1-1. Fax diagnosis
This diagnosis is concerned with the main body of fax which is used
for production and service support.
Entering the diagnostic mode
1-2. Print diagnosis
This diagnosis is concerned with the print which is used for
production and service support.
Entering the diagnostic mode
Memory clear when power is turned on
Pressing the START and STOP keys, turn on the main power, and the
following message will be displayed.
Press STARTkey, the memory will be cleared to be ready for operation.
Press COPY key, the memory will be cleared to be ready for process
check.
If press the other keys, it will continue ready for operation as it is.
Press , and the following
display will appear.
FUNC
9 8 6
PRINT DIAG MODE
PRESS START KEY
(Diag • specifications)
FUNC
986
START 01 AREA PRINT MODE
START 02 CHECK PATTERN 1
START 03
CHECK PATTERN 2
START04
CHECK PATTERN 3
START05
PAPER FEED AGING
START06
LIFE SET MODE
START07
LIFE ALL CLEAR
START
START
08
LIFE ENTRY MODE
START
09
TOP ADJUST MODE
START
START
Then press the key. Select the desired item with the
key and the key or select with the rapidkey.
Enter the modewith the key.
START10
LIFE CLEAR MODE
START11
MAIN CHARGER ADJUST
PRINT DIAG MODE
MEMORY CLEAR?
YES: START
FUNC 9 8 7
START01 SOFT SWITCH MODE
START
02
START03
ROM & RAM CHECK
START
04
AUTO FEEDER MODE
START
05
AGING MODE
START
07
PANEL KEY TEST
OPTICAL ADJUST MODE
CHECK PATTERN MODE
START
08
START06
START09
START
10
SIGNAL SEND MODE
START
11
MOTOR AGING MODE
MEMORY CLEAR MODE
TEL. NUMBER SET
START
12 SIGNAL SEND MODE 2
START
ROM: FBF0
FUNC
9 8 7
Press , and the following
display will appear.
DIAG MODE
START
Then press the key. Select the desired item with the key
and the key or select with the rapid key.
Enter the mode with the
START key.
(Diag
• specifications)
ROM: FBF0

FO-2970MU
2 – 5
2. Diagnostic items description
2-1. Fax diagnosis
1) Soft switch mode
The soft switches are provided so that each operation mode can be set
by using the operation panel.
In this mode, these switches can be checked and set.
The contents of these switches are backed up.
2) ROM & RAM check
ROM executes the sum check, and RAM executes the matching test.
Ifany error occurs,the buzzer willinform it. (Referto the followingtable).
Finally, the result will be printed.
1 Switch number selection
•Press START key for setting of the next soft switch. If the soft
switch number is the final, pressing START key will exit the soft
switch mode.
•Enter two digits of a soft switch number to set the switch number.
2 Data number selection
The cursor position shows the data to be set.
Pressing # key moves the cursor to the right. If, however, the cursor
is on data number 8, pressing # key shifts the cursor to data number
1 of the next switch number. If the switch number is the final, press-
ing # key will exit the soft switch mode.
Pressing key moves the cursor to the left. If, however, the cursor is
on data number 1, pressing key shifts the cursor to data number 1
of the former switch number. If the switch number is 1, pressing
key will not move the cursor and the error buzzer will sound.
3 Data setting method
Press the FUNCTION key, and the data at the position of the cursor
will be reversed to 0 when it is 1, or to 1 when it is 0. (If the soft switch
can not be changed at the bit the error buzzer will sound with the
process not received.), When you press the START key or the # key
and the cursor moves to the next switch position, the changes in the
contents of the previous switch position will be saved. If you do not
want to save your changes, press the STOP key.
4 Outputting method of soft switch list
In the soft switch mode, press the COPY/HELP key, and the soft
switch list will be output.
If the recording paper runs out or is clogged, condition is held until
recording paper is prepared, and an error buzzer doesn’t ring.
5 Prohibition against changing individual pieces of data and synchro-
nized data changes
At present, there is no prohibition against changing data individually
andthereis also no capabilitytomake synchronized changes todata.
(The ECM may be turned on or off while using image memory.)
S O F T S W I T C H M O D E
S W 0 1 = 0 0 0 0 0 0 0 0
Soft switch mode screen
Switch
No. 1
2 3 4 5 6 7 :DATA No.
8
Data
S O F T S W I T C H M O D E
S W 0 1 = 0 0 1 0 0 0 0 0
S O F T S W I T C H M O D E
S W 1
S O F T S W I T C H M O D E
S W 1 6 = 0 0 0 1 0 1 1 0
1 6
The buzzer beep pattern is: on for 0.25 seconds and then off for 0.25
seconds.
3) Aging mode
If any document is set up in the first state (when started), copying will be
executed. If it is not set up, "check pattern" of the print diagnosis is out-
put at the intervals of 1 sheet/5 minutes. (A total of 10 sheets are out-
put.)
4) Panel key test
This is used to check whether each key is normally operated or not.
According to the key input, LCD is displayed.
1) When the START key is pressed while PANEL KEY TEST is being
displayed, a test will start. Since all of the LEDs will light up in se-
quence until the test is finished, the LED operation can be checked
as well.
2) Press all of the keys one at a time, but do not press the STOP key.
Every time a key is pressed, the name of that key will appear in the
display.
3) Finally, press the STOP key. If there was a key you pressed that was
not detected when the STOP key is pressed, PANEL TEST NG! will
be displayed. When all of the keys have been pressed and detected,
PANEL TEST OK! will be displayed.
Then the display will go blank, which is OK. If there was an NG, any
key which was not pressed or not detected will be printed in the re-
sult table. (For details about the printout format, see the list function
specifications.)
5) Optical adjust mode
In this mode, the optical system is adjusted. Document feeding can be
startedbypressing the STARTkeytwotimes.It can be stopped by press-
ing the STOP key.
6) Check pattern mode
The effective printing area used will be according to the size specified.
A copy of a pattern will be printed, and the printing will be complete.
7) Signal send mode
This mode is used to send various signals to the circuit during FAX com-
munication. Every push of START key sends a signal in the following
sequence.
[ 1] No signals (CML-ON)
[ 2] 14400bps (V. 33)
[ 3] 12000bps (V. 33)
[ 4] 14400bps (V. 17)
[ 5] 12000bps (V. 17)
[ 6] 9600bps (V. 17)
[ 7] 7200bps (V. 17)
[ 8] 9600bps (V. 29)
[ 9] 7200bps (V. 29)
[10] 4800bps (V27ter)
[11] 2400bps (V27ter)
[12] 300bps (FLAG)
[13] 2100Hz (CED)
[14] 1100Hz (CNG)
[15] END
8) Memory clear mode
This mode is used to clear the backup memory and to reset to the fac-
tory default setting.
The content of each setting will be cleared. Then, the initialized list be
output.
Number of buzzer sounds Device checked
1 time <Short sound> MAIN ROM
2 times <Short sounds> S-RAM
3 times <Short sounds> D-RAM
4 times <Short sounds> CPU integrated ROM/RAM

FO-2970MU
2 – 6
10) Motor aging mode
Regardless of the presence or absence of a document, the transmis-
sion system motor will continue to run until the STOP key is pressed.
When the STARTkey is pressed after this mode has been selected, the
motor will run at the STANDARD mode speed. Then, when the image
quality is changed using the RESOLUTION key, the motor will run at the
speed used for that image quality.
(When HALF-TONE is selected, the motor will run at the FINE
modespeed.)
11) TEL. number set
The function is used to simplify the registration of FAX/TEL No. during
aging.
1 The diagnosis mode is activated. If anything is not registered in the
Rapid number 01 or any program or group is registered, it will pass
the diagnosis without doing anything.
2 The FAX number (including the substitutive destination) of the Rapid
number 01 is copied to the Rapid numbers 02 thru 19.
3 FAX number of the Rapid number 01 is copied to SPEED key num-
bers 00 thru 99.
4 If any chain dial is not set in the Rapid number 01, the Rapid num-
bers01 thru 19 and SPEEDkey numbers 00 thru 10are registered in
the group number 04.
If any chain dial is set, the group will be not produced but the chain
dial setting alone of the Rapid number 01 will be reset.
(In all others except the Rapid number 01, the chain dials will be
continuously set as they are.)
(12th and subsequential letters of the destination name registered in the
Rapid number 01 will be discarded.)
12) Signal Send Mode 2
The signals concerned with V.34 & V.8 are checked.
After this mode is activated, press the START key, and the signals will
be sent in the following sequence.
It can be used to check the modem.
[ 1] No signals (CML-ON) [10] 14400bps (V.34)
[ 2] 33600bps (V.34) [11] 12000bps (V.34)
[ 3] 31200bps (V.34) [12] 9600bps (V.34)
[ 4] 28800bps (V.34) [13] 7200bps (V.34)
[ 5] 26400bps (V.34) [14] 4800bps (V.34)
[ 6] 24000bps (V.34) [15] 2400bps (V.34)
[ 7] 21600bps (V.34) [16] 0-300bps (V.21)
[ 8] 19200bps (V.34) [17] ANsam (V.8)
[ 9] 16800bps (V.34) [18] END
AUTO FEEDER MODE
( )
AUTO FEEDER MODE
A4 (A4 ORG)
After setup of the document
Only the sensor which is
activated (fallen down) is displayed.)
The paper sheet size (A4) is
displayed.
Rapid key
SPEED key RXX
SXX XX
XX : Rapid number
: Speed key number
2-2. Print diagnosis
Rapid key 01: Area print mode
The effective printing area frame is printed in the specified sheet size.
The left pattern is repeated.
The left pattern is repeated.
The left pattern is repeated.
5. [Longitudinal strip 2 pattern]
Black 2 dot and white 2 dot are repeated in line.
6. [Lateral strip 2 pattern]
Black 2 line and white 2 line are repeated.
7. [Longitudinal strip 1 pattern]
Black 1 dot and white 1 dot are repeated in line.
8. [Lateral strip 1 pattern]
Black 1 line and white 1 line are repeated.
9. [Full White pattern]
Rapid key 02: Check pattern 1
The lateral stripe 2 pattern is printed on one sheet.
(Black 2 line and white 2 line are repeated.)
Rapid key 03: Check pattern 2
The lateral stripe 2 pattern is printed on multiple pages.
Press the STOP key to end the printing.
Rapid key 04: Check pattern 3
The intermediate tone 1 is printed on one sheet.
1. [Full black pattern]
2. [Intermediate tone 2 pattern]
3. [Intermediate tone 1 pattern]
4. [Mesh point pattern]
4mm
4mm
4mm
208mm
4mm
1
2
3
4
5
6
7
8
9
9) Auto feeder mode
The auto feed function can be checked by inserting and discharging the
document. (After entering this mode, when a document is placed in the
machine and the START key is pressed, the operation will start.)
After this mode is activated, the document size A4(A4 ) and
sensor informationA4(A4 ORG) are displayed when the document
sensor is turned.

FO-2970MU
2 – 7
The cursor blinks at the top data.
Seven counters can be selected with the "#" and " " keys.
2 In the state 1 , input a desired setting number of 6 digits with the ten-
key.
3 After input of 6 digits, shift to another counter with the "#" and " "
keys as necessary. When all necessary counters are completely in-
put, press the START key.
4 "STORED" will be displayed with the set values stored into the
memory. For checking, retry this mode.
Note:
This counter indicates the printer use conditions such as numbers of
printed pages from the beginning of use. In the normal memory clear
condition, the counter will not be reset.
In conditions including damaged memory contents caused by repairing
the panel, this counter should be reset or cleared in addition to the ordi-
nary memory clear.
Rapid key 05: Paper feed aging
The mode is used for aging related to the printing. In this mode, the
following modes are provided.
1 Blank paper aging mode (ALL WHITE AGING)
2 Whole black print aging mode (ALL BLACKAGING)
3 4% printing aging mode (4% AGING)
After selecting the paper-feed aging mode in the print diagnosis mode,
input the number of each mode above with the ten-key, and the mode
willbeexecuted. The detailed specificationsofeach mode are described
as follows. Here, the operation in each mode is stopped only when the
STOP key is pressed by the operator or a printing-impossible error oc-
curs.
•Blank paper aging mode (ALL WHITE AGING)
In the mode, printing is continued in the whole white (white paper)
printing pattern until the STOPkey is pressed by the operator. (In the
printing area)
•Whole black printing aging mode (ALL BLACK AGING)
In the mode, printing is continued in the whole black (whole black)
printing pattern until the STOPkey is pressed by the operator. (In the
printing area)
Rapid key 06: Life set mode
The mode is used to set the life counter of the printer and the counter of
the auto feeder at desired values. For setting, proceed with the follow-
ing procedure.
1 When the life counter setting mode is selected, the following will be
is displayed.
MACHINE
DRUM
L
LIFE
IFE1
= 00123
FEEDER = 00123
= 00123
= 00123
LIFE2= 00123
L
L
IF
F
E3= 00123
0
0
0
0
0
0
key
# key
OT NER = 001230
LF
Rapid key 07: Life all clear
The mode is used to clear the life counter of the printer of the counter
of the auto feeder.
Note: The counter shows the operational state of the printer (e.g. how
many sheets have been printed since start of use?). The ordi-
nary memory does not reset the counter. Accordingly, it is nec-
essary to reset this counter in addition to the ordinary memory
clear if the content in the memory on the control PWB is broken
because of PWB repair, etc. (In the production stage, it is nec-
essary to execute this in the last process.)
Rapid key 08: Life entry mode
(For Serviceman temporary counter)
The mode is used to set a desired value for the judgment value (alarm
judgment counter value) of the general purpose life counters 1 thru 3 of
the printer. If the life of a consumable part (developer, imprinter, etc) is
set, the model which has the error display and RMS function will inform
RMS when the counter reaches the set value. For setting, proceed with
the following procedure.
1 When the life counter entry mode is selected, the following will be
displayed.
The cursor blinks at the top data.
Three counters can be selected with the "#" and " " keys.
2 Inthe state 1 , input a desired setting number of 6digits with theten-
key.
3 After input of 6 digits, shift to another counter with the "#" and " "
keys as necessary. When all necessary counters are completely in-
put, press the START key.
4 "STORED" will be displayed with the set values stored into the
memory. For checking, retry this mode.
Note: Thecountershowstheoperational state of the printer (how many
sheets have been printed since start of use? and others). The
ordinary memory does not reset the counter. Accordingly, it is
necessary to reset the counter or do the clear process in addi-
tion to the ordinary memory clear if the content in the memory
on the control PWB is broken because of PWB repair, etc. (In
the production stage, it is necessary to execute this in the last
process.)
Rapid key 9: Top adjust mode
Adjust the top margin for printing on a page. You can enter any value
from 0 to 99 using the ten-key keypad.
The standard (initial) value is 50.
Whenthesettingis increased, the print start positionwillbemovedcloser
to the beginning of page.
When the setting is decreased, the print start position will be moved
further away from the beginning of page.
LI FE1= 00123
LI FE2= 00123
LI FE3= 00123
0
0
0
# key key

FO-2970MU
2 – 8
Rapid key 10: Life clear mode
The mode is used to respectively clear the life counter of the printer and
the counter of the auto feeder. For setting, proceed with the following
procedure.
1 When the life counter clearing mode is selected, the following will be
is displayed.
Seven counters can be selected with the "#" and " " keys.
2 In the state of 1 , select the counter value you want to clear using the
"#" key or the " " key, and then press the START key.
3 "CLEARED " will be displayed, and the countervalue will becleared.
Afterclearingthe counter value, another countervaluecan be cleared
using the # or key, if desired. Press the STOP key to exit from the
mode.
Note: Thecountershowstheoperational state of the printer (how many
sheets have been printed since start of use? and others). The
ordinary memory does not reset the counter. Accordingly, it is
necessary to reset the counter or do the clear process in addi-
tion to the ordinary memory clear if the content in the memory
on the control PWB is broken because of PWB repair, etc. (In
the production stage, it is necessary to execute this in the last
process.)
Rapid key 11: Main charger adjust
This mode is used to control voltage of main charger.
MACHINE
DRUM
L
LF
LIFE
IFE1
LEAR
FEEDER LF LEAR
TONER L I FE LEAR
LEAR
LEAR
LIFE2 LEAR
LIFE3 LEAR
C
C
C
C
C
C
C
key
# key

FO-2970MU
2 – 9
3. How to make soft switch setting
To enter the soft switch mode, make the following key entries in sequence.
Press FUNCTION 9 8 7 START0 1START
Press FUNCTION key.
Press key.
Press key.
Bit1 - 8 are set.
Soft SW2 - 65 are set.
S F T S W 1 = 1 0 0 0 0 0 0 0
S F T S W 1 = 1 0 0 0 0 0 0 0
S F T S W 1 = 1 0 0 0 0 0 0 0
S F T S W 1 = 1 0 0 0 0 0 0 0
S F T S W 2 = 0 0 0 0 0 0 0 0
S F T S W 65 = 0 0 0 0 0 0 0 0
Press key during setting.
To finish the settings halfway between
SW 1 and SW65, 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 Nos. remain in effect.
The soft switch mode is terminated.
S F T S W 1 = 0 0 0 0 0 0 0 0
START

FO-2970MU
2 – 10
1 Recall interval Binary input 8421 0 OPTION
2 No. = 1234 1 Set to 01~15
3 0101(5x60sec = 5 min) 0
SW1 4 1
5 Recall times Binary input 8421 0 OPTION
6 No. = 5678 0 Set to 0~10
7 0010(Twice) 1
8 0
1 Dial mode Pulse Tone 0 OPTION
2 Reception mode Auto Manual 1 Recep key
3 ECM mode No Yes 0 OPTION
SW2 4 CNG detection in stand-by mode No Yes 0 OPTION
5 Polling security On Off 0 FUNC +3
6 Automatic cover sheet No Yes 1 OPTION
7 Junk fax function in manual reception Yes No 0
8 Anti junk fax function Yes No 0 OPTION
1 Number of rings for auto receive Binary input 8421 0 OPTION
2 No. = 1234 1
3 0100(4times) 0
SW3 4 0
5 Automatic switching manual to auto receive Binary input 8421 0
6 mode No. = 5678 0
7 (0: OFF) 0000(off) 0
8 0
Communication results printout Error Err/Tmr/Mem Send only No print Always OPTION
1 (transaction report) No. 1 0 0 0 1 1 0
2 No. 2 0 0 1 0 1 0
3 No. 3 1 0 0 0 0 1
4 Delay timer before line connect in auto dial 3 sec 0 sec 0
SW4 Delay timer of after line connect in auto dial 3.6 sec 3.0 sec 1.7 sec 3.0 sec
5 No. 5 1 1 0 0 0
6 No. 6 1 0 1 0 1
Number of CNG detect (STAND-BY mode) 1 pulse 2 pulses 3 pulses 4 pulses
7 No. 7 0 0 1 0 0
8 No. 8 0 1 0 0 1
1 Time format 24-hours 12-hours 0
2 Date format Month-Day-Year Day-Month-Year 1
3 Sender’s information transmit Off On 0
SW5 4 Footer print On Off 0
5 Reserved 0
6 Substitute reception Off On 0
7 Substitute reception conditions Reception disable without TSI Reception enable without TSI 0
8 CSI transmission Off On 0
4. Soft switch description
• Soft switch
SW
NO. DATA
NO. ITEM Switch setting and function Remarks
Initial
setting
10

FO-2970MU
2 – 11
1 H2 mode No Yes 0
2 MH fixed Yes No (depends on remote machine) 0
3 Reserved 0
4 Reserved 0
SW6 Modem speed V.17 V. 29
V. 27ter
(DCS data reception speed) 14400 12000 9600 7200 9600 7200 4800 2400
5 No. 5 1111 0 0 0 0 1
6 No. 6 0000 0 0 0 0 0
7 No. 7 0101 0 1 1 0 0
8 No. 8 0011 1 1 0 0 0
Reception speed fixed NO V. 17- V. 29- V. 27 ter-
14400 bps 9600 bps 4800 bps
1 No. 1 0 1 0 1 0
2 No. 2 0 1 1 0 0
3 DIS receive acknowledgement during Twice 0 0
G3 transmission
SW7 4 Non modulated carrier for V.29 On Off 0
transmission mode
5 EOL detect timer 25 sec 13 sec 0
6 Protocol monitor On Off 0
7 Line monitor On Off 0
8 Length limitation of copy/send/receive No limit Copy/Send:1m Receive:1.5 m 0
Digital line equalization setting 0 Km 1.8 Km 3.6 Km 7.2 Km
1 (Reception) No. 1 0 0 1 1 0
2 No. 2 0 1 0 1 0
3 Dial pausing (sec/pause) 2sec 4sec 1
SW8 4 Signal transmission level Binary input 16 8 4 2 1 0
5 No. = 45678 1
6 01001(–9 dBm) 0
7 0
8 1
CED tone signal interval 75 ms 500 ms 750 ms 1000 ms
1 No. 1 0 0 1 1 0
2 No. 2 0 1 0 1 0
3 Equalizer freeze control (MODEM) On Off 0
SW9 4 Equalizer freeze conditions All 7200 bps 0
5 CED detection time 500 ms 1000 ms 0
6 Reserved 0
7 Reserved 0
8 Busy tone detection (after auto dial) Yes No 1
1 Reserved 0
2 Reserved 0
CI off detection timer 1200 ms 1000 ms 700 ms 350 ms
3 (Distinctive ring setting off only) No. 3 0 1 0 1 0
4 No. 4 0 0 1 1 1
SW10
Distinctive ringing setting OFF STD RING1 RING2 RING3 RING4 RING5 OPTION
5 Factory setting : OFF No. 5 0 0 1 0 1 0 1 0 RING4/RING5
6 No. 6 0 0 0 1 1 0 0 0 Canada
7 No. 7 0 0 0 0 0 1 1 0 Only
8 No. 8 0 1 0 0 0 0 0 0
SW
NO. DATA
NO. ITEM Switch setting and function Remarks
Initial
setting
10
When 14400 bps
modem used,
setting to
14400 bps is
ignored.

FO-2970MU
2 – 12
End buzzer 3 sec 1 sec No Beep No Beep OPTION
1 No. 1 0 0 1 1 0
2 No. 2 0 1 0 1 0
3 Communication error treatment No communication error Communication error 0
in RTN sending mode (reception)
SW11 4 CNG transmission after auto dialing No Yes 0
5 Error criterion 10 ~ 20 % 5 ~ 10 % 0
6 Pulse to tone change by key On Off 0
7 CNG transmission in manual transmission No Yes 0
8 Reserved 0
1 DTMF signal transmission level (Low) Binary input 16 8 4 2 1 0
2 No. = 12345 1
3 01100(–6 dBm) 1
4 0
SW12
5 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 DTMF signal transmission level (High) Binary input 16 8 4 2 1 0
2 No. = 12345 1
3 01000(–4 dBm) 0
4 0
SW13
5 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW14 4 Reserved 1
5 Reserved 1
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW15
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
SW
NO. DATA NO. ITEM Switch setting and function Remarks
Initial
setting
10

FO-2970MU
2 – 13
1 Reserved 1
2 Reserved 0
3 Reserved 0
SW16
4 Reserved 0
5 Reserved 1
6 Reserved 0
7 Reserved 0
8 Reserved 0
Speaker volume (3 stages) High High Middle Low Using
1 No. 1 0 0 1 1 1 Volume
2 No. 2 0 1 0 1 0 key
Hand-set receiver volume (3 stages) High High Middle Low Using
3 No. 3 0 0 1 1 1 Volume
SW17
4 No. 4 0 1 0 1 0 key
Ringer volume (4 stages) Off High Middle Low Using
5 No. 5 0 0 1 1 1 Volume
6 No. 6 0 1 0 1 0 key
Key volume Off High Low Low
7 No. 7 0 0 1 1 1
8 No. 8 0 1 0 1 0
1 Reserved 1
2 Auto reception in PC I/F mode FAX PC 1 FUNC + #
3 Summer time setting No Yes 1 FUNC + 3
SW18
4 Sender’s phone number setting Cannot change Change allowed 0
5 Polling key Yes No 0 OPTION
6 Activity report print Automatic printout No printout when memory full 0 OPTION
7 Total communication hours and pages print Off On 0
8 Line density selection Fine Standard 0 OPTION
Density adjustment (when Fine/STD mode) Normal Faint Deep Deep
(when Dark
mode)
1 No. 1 0 0 1 1 0
2 No. 2 0 1 0 1 0
Density adjustment (when Half-tone mode) Normal Faint Deep Deep
SW19
(when Dark
mode)
3 No. 3 0 0 1 1 0
4 No. 4 0 1 0 1 0
5 Reserved 0
6 Reserved 0
7 Reserved 1
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW20
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 F.A.S.T (RMS) mode On Off 1
8 Quick on-line Yes No 1 OPTION
SW
NO. DATA
NO. ITEM Switch setting and function Remarks
Initial
setting
10

FO-2970MU
2 – 14
1 Reserved 0
2 Reserved 0
3 Reserved 1
SW21
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW22
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Automatic reduce of receive Auto 100% 1 OPTION
2 Cut off mode (COPY mode) Continue Cut-off 0 OPTION
Paper set size Letter Legal A4 Letter OPTION
3 No. 3 0 0 1 1 0
SW23 4 No. 4 0 1 0 1 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
DTMF detection time 50 ms 80 ms 100 ms 120 ms
1 No. 1 0 0 1 1 0
2 No. 2 0 1 0 1 0
3 Protection remote reception (5 ) detect Yes No 0 OPTION
SW24 4 Reserved 0
5 Remote operation code figures by external Binary input 8421 0 OPTION
6 tel (0 ~ 9) No. = 5678(Data No.) 1
7 EX 0101 0
8 eg. 5 1
1 Busy tone detection ON/OFF time (Shorter duration) 350ms 150 ms 0
Busy tone detection ON/OFF time 650 ms 900 ms 2700 ms 900 ms
2 (Longer duration) No. 2 0 0 1 1 0
3 No. 3 0 1 0 1 1
SW25
4 Busy tone continuous sound detect time 10 sec 5 sec 1
5 Busy tone detect continuation sound detect No Yes 0
6 Busy tone detect intermittent sound detect No Yes 0
Busy tone detection pulse number 2 pulses 4 pulses 6 pulses 10 pulses
7 No. 7 0 0 1 1 0
8 No. 8 0 1 0 1 1
1 TAD connect Yes No 0 Recep key
2 Fax switching when A.M. full Yes No 0 OPTION
Selection time of quiet detection 30 sec 40 sec 50 sec 60 sec
3 No. 3 0 0 1 1 0
SW26
4 No. 4 0 1 0 1 1
Number of CNG detect (AM mode) 1 pulse 2 pulses 3 pulses 4 pulses
5 No. 5 0 0 1 1 0
6 No. 6 0 1 0 1 1
7 Reserved 0
8 Reserved 1
SW
NO. DATA NO. ITEM Switch setting and function Remarks
Initial
setting
10

FO-2970MU
2 – 15
1 Quiet detect time Binary input 8421 0 OPTION
2 No. = 1234 1
3 0100(4sec) 0
SW27
4 0
5 Quiet detect start timing Binary input 8421 0
6 No. = 5678 1
7 0101(5sec) 0
8 1
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW28
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW29
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW30
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW31
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
SW
NO. DATA
NO. ITEM Switch setting and function Remarks
Initial
setting
10

FO-2970MU
2 – 16
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW32
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 1
3 Reserved 0
SW33
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW34
4 Reserved 0
5 Reserved 1
6 Reserved 1
7 Reserved 0
8 Reserved 1
1 Reserved 1
2 Reserved 1
3 Reserved 0
SW35
4 Reserved 1
5 Reserved 1
6 Reserved 1
7 Reserved 0
8 Reserved 1
1 Reserved 1
2 Reserved 1
3 Reserved 1
SW36
4 Reserved 1
5 Reserved 1
6 Reserved 1
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW37
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
1 Reserved 0
2 Reserved 0
3 Reserved 0
SW38
4 Reserved 0
5 Reserved 0
6 Reserved 0
7 Reserved 0
8 Reserved 0
SW
NO. DATA NO. ITEM Switch setting and function Remarks
Initial
setting
10