OKIFAX OF-7 User manual

OKIFAX OF-7
Facsimile Transceiver
! (“.,, Field Service Handbook
1
FIRST EDITION
July 17,199O
OKI ELECTRIC INDUSTRY COMPANY, LTD.

PREFACE
This manual is intended to be used for installing and maintaining the OKIFAX OF-7 facsimile
transceiver (International Standard Version).
Maintenance of the OF-7 is assumed to be conducted to the following levels:
l Component-level maintenance for mechanical portion
0 Unit-level maintenance for electric portion
0 Copyright 1990 OKI ELECTRIC INDUSTRY COMPANY, LTD.
This manual is subject to alteration without prior notification.

CONTENTS
Page
CHAPTER 1. GENERAL INFORMATION
1.1
Features . . . . . . . ..__...__.______..________............_...._____________ l-l
1.2
General Appearance .
1 - 2
CHAPTER
2. SPECIFICATIONS 2 - 1
CHAPTER
3. INSTALLATION
3.1
’ ~’ 3.2
3.2.1
3.3
3.3.1
3.4
3.5
3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.7
3.7.1
3.7.2
3.7.3
3.7.4
3.7.5
3.7.6
3.8
3.9
3.10
3.10.1
3.11
3.11.1
3.11.2
3.12
3.12.1
3.12.2
3.12.3
General
....................................
..- ......................... 3-l
Installation Site
..........................................................
3 - 2
Environments .......................................................... 3-2
Unpacking ............................................................. 3-2
UnpackingProcedure ................................................... 3-2
ContentsChecking ...................................................... 3-3
ACCordConnection
.................................................... 3-3
InitialSettings
.......................................................... 3-4
General
................................................................ 3-4
DIPSwitchSl
........................................................... 3-5
SlideSwitchS2
......................................................... 3-7
Programming by Key Operation
3 - 8
Optional Settings
.......................................................
3 - 22
General
................................................................ 3-22
Polling Number (Password) Programming
.
3 - 23
Access Digit Programming .............................................. 3-24
TWCSI (Tel. No.) Programming
3 - 25
TechnicalSet-up ........................................................ 3-27
Line Monitor Acoustic Sound
............................................
3 - 31
Telephone and Line Connection
..........................................
3 - 33
Frame Ground Connection
3 - 34
Accessory Installation
...................................................
3 - 35
Thermal Recording Paper 3 35
Off-IineTest
............................................................ 3-37
Checkltems ............................................................ 3-37
Operation Procedure .
3 - 37
On-lineTest ________._____.______.___________.__________________________ 3-38
General
................................................................ 3-38
Reception ________.___________.___._____________________________________ 3-38
Transmission ____.___________________1____._.___________________________ 3-39
-i

Page
CHAPTER
4. MAINTENANCE
4.1
Routine inspection
4- 1
4.2
Self-Diagnosis Tests
.,
4 - 3
4.2.1 LEDTest
_________._______._______.__._______..__.._________.___..._._.. 4-4
4.2.2 ToneTest _____.___________________.____._._______._.___.____......_.... 4-5
4.2.3 High or Low Speed MODEM Transmission or
Recepti~on Test
4 - 6
4.2.4 PBSendTest
___.____._.__________.___._.____.__________..___........... 4-8
4.2.5
PrintTest ________.______.__.______________________..____.___........... 4-9
4.2.6 image Sensor Test
___..___.___.._______.._.___..._____.....
. . . . . . . . . . . . 4-11
4.2.7 ROMTest _____.______.__________..__.___,__.___.____________..i........ 4-12
4.2.8
RAMTestandClear _______...________________..........____._____...__.. 4-13
4.3 LC Display Data in Error State _________._____.______________...____.......
4- 14
CHAPTER
5. ADJUSTMENT
5.1 Electrical Adjustments
5.1.1 Ringing Signal Detection Sensitivity
.,.
5.1.2
Dial Tone and Busy Tone Detection Level (I)
5.1.3
Dial Tone and Busy Tone Detection Level (2)
.
5.1.4 Line Monitor Acoustic Sound Adjustment
_.
5.2
Image Sensor Output Waveform Check
______.______.._____...__.........
CHAPTER
6. TROUBLESHOOTING
5-l
5-l
5-3
5-5
5-7
5-7
6.1 Electrical Troubleshooting Flow Chart
6 - 1
6.1.1 Overall _._.._._...______._________._________......____.______.__.______ 6-l
6.1.2
NoGoodLCDOperation .______._._____._____._________._______________._ 6-3
6.1.3 LitAlarmLED _._.___.__.____._______________________________._____...___ 6-5
6.1.4 Abnormal Print-out
6 - 6
6.1.5 NoGood Local Copy
_. _______..______.____________. _...__ _._____._ __. 6-7
6.1.6 No Dial-Tone Detection
6 - 9
6.1.7
No Auto-Dialing
__ _. __ _. _. _. _. _.
6- 12
6.1.8 Transmission Communication Trouble
6- 14
6.1.9
NoAuto-Reception ____._______________________..___..__________.__._.._ 6-16
6.1.10 Reception Communication Trouble
6- 17
CHAPTER
7. DISASSEMBLY & ASSEMBLY
7.1
General _______..___._.____.____.__.._____.______..._____...__......__.. 7-1
7.1.1
Precautions for Parts Replacement _______..___.________._.____._______... 7-l
7.1.2 Tools
_.___.__._.......__...._.___..____.______.__________.__._____._.._ 7-l
7.2
General Mechanical Structure
7 - 2
7.3 How to Disassemble and Reassemble 7
- 3
_ ii _

Page
7.3.1 TopCover
.________...........________.................................. 7-3
7.3.2 PrintScanlJnit
._._.............______...._._______________.____________ 7-S
7.3.3 MCNTorNCUPCBoard . . . . . . . . . . . ..___...._______._._________.__..__.... 7-7
7.3.4 OPE PC Board
_____.........______..._.................................. 7-9
7.3.5 PowerSupplyUnit . . . . . . . . . . . . . .
..____...........__.__________....____.. 7-9
7.3.6 Image Sensor Unit, Document Exist Sensor 7
- 10
7.3.7 Separation Rubber, Feed Roller
. .
7- 12
7.3.8 Print Roller, Recording Paper Detector
7- 14
7.3.9 Thermal
HeadAss’y
. . . . . . . . . . . .._._____..............._ __._........_.... 7- 16
CHAPTER 8. BRIEFTECHNICAL DESCRIPTION
8.1
PC BoardandUnit . .._.._________..._..._.__.___________________________ B-l
Lab,\ 8.1.1
PC Board ___._______________...______________~____.._._____________.___ 8-1
8.1.2 Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-l
8.1.3
Overall Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1
8.1.4
General Block Diagram
. . . . . .
B - 1
8.2 SignalFlow ____________.__.__________________........................__ 8-4

CHAPTER I:
GENERAL INFORMATION

CHAPTER 1.
GENERAL INFORMATION
1.1
Features .................................................
l-l
1.2
GeneralAppearance
......................................
l- 2

CHAPTER 1.
GENERAL INFORMATION
1.1 Features
The OKIFAX OF-7 has the following main features:
(1) Direct contact image sensor
(2) Sixteen-halftone transmission
(3) Ten one-touch key for auto dialing
(4) One specified time delay transmission
(5) Access digit for PTT line
(6) Automatic response delay for auto receive
(7) Activity report print out
(8) Acoustic monitor
(9) Local diagnosis
(10) Over heat protection
l-l

1.2
Genera1 Appearance
I The general appearance ofthe OF-7 is shown in Figure 1.2.1 and Figure 1.2.2 below,
. The operation control Panel of the OF-7 is shown in Figure 1.2.3 and Figure 1.2.4.
Fig. 1.2.1
General appearance (frontview)
Fig. 1.2.2
General appearance (rear view)
1-2

Fig. 1.2.3 Operation control panel of the OKIFAX OF-7
Fig. 1.2.4 Operationcontrol panel (expansion)
1-3

CHAPTER 2:
SPECIFICATIONS

CHAPTER 2. SPECIFICATIONS
The table below givesthe specifications for the OKIFAX OF-7.
lo.
item
‘Specifications
1
Type of Apparatus
. Desktop design
. CCITT Group 3 facsimile transceiver
2
Applicable Telephone Line (1) GSTN (General Switched Telephone Network)
(2) PBX extensions
* PBX: Private Branch Exchange ”
3
Communication’Mode Half-duplex
4
Transmission Mode
CCITT G3 mode
5
Document Size
(1) Width
Max.: 216 mm,(American lettersize)
Min.: 148 mm (IS0 A5 size)
(2) Length
Max.: 1000 mm
Min.: 128 mm
2-l

-
0.
-
6
7
8
9
IO
11
12
13
-
Item
r
Resolution
Scanning Method 1,728-bit Direct Contact image sensor
Recording Method
l,728,dotsflat-bed thermal printing head
Coding Scheme
One-dimensional coding scheme:
MH (Modified Huffman)
MODEM
Transmission Time (image) 17 seconds
16.scale gradation
Dither algorithm
l), ,Horizontal direction
8 pelslmm
2). Vertical directiqn
a) 3.85 lines/mm (STD)
b) 7.7 lines/mm (FINE)
:l) High-speed MO,DEM
a)
CCITT Rec. V.29 (9600/7200 bps)
b)
CCITT Rec. V.27ter (4800/2400 bps)
:2) Low-speed MODEM
CCITT Rec. V.21 ,channel 2 (300 bps)
(1) CCITT Rec. T.30
(2) OKI special protocol
2-2

b.
Item
14 Fall-back
15 Auto Dialing
16
Auto Redial
17 Manual Redial
18 Voice Request
19 Local Copy
Specifications
. The automatic fall-back system will attempt
transmission in the following sequence in accordance
with an FTT/RTN response signal from a remote
machine.
. FTT 9600+7200+%800+4800+2400+2400+DCN
. RTN 9600+7200+4800+2400~DCN
. The transmitter can transmit a DCN signal to the
remote station for disconnection after the second
2400 bps transmission is attempted.
(1) One-touch key
10 one-touch keys are provided.
(2) Two-digit location code
10 different location codes are avaiable.
(3) Full-digit location
Operator can use the Tenkey pad for a full-digit
location number.
. Fixes the number of redial attempts in accordance
with PTT parameter INT’Lversion: 2 tries (fixed).
REDIAL key provided
. No limit on number of repeat attempts.
. VOICE REQUEST key provided
. A voice request from the receiver/transmitter is
available only upon completion of the total message
transmission/ reception.
Copy reproduces document only with 7.7 lines/mm
resolution.
2-3

lo. Item
Specifications
!O Delay Send
. One specified ti,me of the delay transmission is
(Feeder)
available.
!1 Sender ID The OF-7 can transmit a programmed alphanumeric
message, such as company’s name, consisting of up to
32 characters.
Sender’s ID format (example)
09:ie
Notes: (1) Sender ID print position
User or service personnel can select the sender ID print position that is
inside or outside of the top of every reproduced page at the remote
receiver.
(2) Sender ID data transmit or not
User or service personnel can select the sender ID data transmit or not.
:2
Personal ID
Upper 16 digits of the Sender ID are separately sent to
the remote machine to indicatethe “Personal ID.”
3
Poll TX Dpcument(s) set on the feeder can be automatically
(To be polled)
cokcted by a remote station.
. 4-digit poll number is provided.
2-4

JO.
Item Specifications
24 Access Digit
. The OF-7 can set a digit-string (one to four digits) with
which the OF-7 can identify the originated call as
either PBX extension call or a call going out from PBX
to a PTT line.
25 Auto Receive
. Selectable on/off by a key on the operation panel
26 Automatic Response Delay
. Service personnel can selectthe delaytime of
automatic response time of the machine.
. 1 ring and 5 seconds, 30 seconds, stepped by 5 seconds.
27
Poll RX(Polling) Collection of message(s) from a remote station
.4-digit password is provided.
2-5

UO.
Item
Specifications
28
Activity Report
The OF-7 can print out the activity report manually or
automatically when 30 reports are recorded.
Activity Report format (example)
RCTIUITV REPORT
11/06/90 10:10
OK1 ELECTRIC WERSEQS WE X WF
0081 3 4321519
NODE STRRT TIME TIME DISTQNT STR. ID
PFlGE RESLkT
G35
27112 19:05 00’29’ 6
STOP
635
27/12 19:06 00’23’ 2
STOP
m
27/12 13124
00’22’ 01 OK
G3R
27/12 19143
00’25” OKI ELECTRIC O”E 01 OK
G3R 27/12 19:44 00’25’ OK1 ELECTRIC O”E 01 OK
635
lW06 19:23 00’02” 6 STOP
635 10/06 19:30 00’30” OK1 ELECTRIC OUE 01 OK
635 11106 08:17 06’21’ OK1 ELECTRIC OUE 01 OK
G3R
IV06 08:19
00’25’
OK1 ELECTRIC GUE 01 OK
G3R lW06 08:28
00’43”
OK1 ELECTRIC OUE
03 OK
635
11/06 OS:30
00’ 12” OK1 ELECTRIC OUE
NG
635 11/06 OS:31 00’25” 2
STOP
635 11/06 08132 00’26’ OK1 ELECTRIC OUE
02 OK
635 11106
OS:33
00’ 12’ OKI ELECTRIC OUE
NG
635 11/06 OS:38 00’34” OK1 ELECTRIC OUE 03 OK
635 11106 08-51 01’14” OK1 ELECTRIC OUE 07 OK
635 11/06 OS:53 00’32” OK1 ELECTRIC O’JE
NE
G3R 11106 09-15 00’25’ OK1 ELECTRIC WE 01 OK
G3R 11x06 09:lb 00’25” OK1 ELECTRIC OUE 01 OK
G3R 11/06 09:18 00’25” OKI ELECTRIC OUE
01 OK
G3R lW06 09:20 00’25” OK1 ELECTRIC OUE 01 OK
G3R 11/06 09:36 01’23” OK1 ELECTRIC OUE
01 OK
G3R 11106 09:38 02’24’ OK1 ELECTRIC OUE 01 OK
G3R 11/06 09142 01’54” OK1 ELECTRIC OUE
01 OK
G3R 11106 09:47 01’10” OK1 ELECTRIC OUE 01 OK
635 11106 10:06 00’09’ 6
STOP
G3S
11/06 i0:07 00’17” OI<I ELECTRIC OUE
01 OK
635
11/06 10:08 00’17” WI ELECTRIC WE 01 OK
635
11/06 10:08 00’35’ OK1 ELECTRIC OUE 01 OK
635 11/06 10:03 00’11” OK1 ELECTRIC OUE
NG
TOTQL TIME TRRNSMIT= 00’07’
TOTPL TIME RECEIUE= 00’11’
2-6

-
:onfiguration Report
The OF-7 can print out a configuration reportto
confirm an initial setting, or rearrange the machine
configuration.
Configuration Report format (example)
Item
Specifications
Jlessage Confirmation
. The OF-7 can manually print out a message
teport confirmation report after the message have been sent
Message Confirmation Report format (example)
CONFIRMRTION REPORT
11/06/90 05:43
OKI ELECTRIC OUERSEFIS lrlE S UF
00s 3 4321519
MODE
ST’ART TIME TIME
OISTONT STQ. IO
POGE RESULT
G3S
11106 OS:38 00’34’ OK1 ELECTRIC
OUE
03 OK
CSM=IWRh-TIW REPORT
11,06/96 08:5E
OKI ELECTRIC OUERSEFIS WE 8 WF
01 -
02 -
03 =
04 =
05 =
06 =
07 =
08 =
09 -
10 =
( ONE TOLCH 01% >
03 432 1519
03-432-3218
03-432-3219
( !auTO OIQL )
01 - 03 795 1644
02 = 03 799 7614
03 = 03-798-7645
04 =
05 =
06 =
07 =
08 -
09 =
10 =
PW - 0000 QO =
41234 REP
= 2 RINT
= 3
SSW - 10H1000 i0000000 00000000 00010000 00100000 00010000 10000100
2-7

-
UO.
-
31
32
33
34
35
36
Item
Acoustic Monitor
Specifications
. Loudness is selectable with a 3.position slide switch.
(high, normal, low)
Acoustic monitor ON/OFF is set by the service personnel.
ON : 0 Dialing-FAX signal reception
0 Stating the reception-before sending NSF
OFF: 0 Not monitered.
Document Communication Effective Reading
Width Mode/Paper Width
Copy Size
Width
A4 size
(210 mm)
G3lA4 A4 ZlOmm+
1%
Effective Reading Width
One-line Minimum Scanning
One-line Minimum Print
Time
Transmission Document
(1) Thickness
10 millisecond for365 lines/mm
5 millisecond for 7.7 lines/mm
10 millisecond for 3.85 lines/mm
5 millisecond for7.7 lines/mm
Automatic paper-background sensing control is
provided.
. The Light and Dark contrasts (low contrast) is
.automatically enhanced to improve image quality.
The documents must be rectangular in shape, and
must be placed face down on the ADF stacker.
a) 0.06to 0.13 mm/ADF
b) Up too.15 mm/single sheet
*Kind of documents must be a high quality paper,
2-a

No. Item
Specifications
(2) Shape
Documents must be rectangular in shape.
(3) Opacity . The machine will properly reproduce documents
whose opacity is more than 60% is normal mode/and
more than 7O%is photo mode.
(4) Automatic Document
Feeder (ADF)
. Max. 5 documents/A4 size
37
Document Damage The document will not be marked, wrinkled or torn as a
result of being sent throuth the feeder or scanner.
38 Document Jam Detection
(1) Within lm
Transmission will stopand a line disconnectwill
occur when the end of the document is not
detected within lm after scanning begins.
(2) 5 seconds
Notice will be given if the document does not reach
the scanning position within 5 seconds after the
document feed begins.
39
Document Jam Removal
. If document is not detected,the document feed begins
after pressing COPY key.
2-9