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