Oki OKIFAX OF-38 Quick start guide

OfClFAx OF-38
Facsimile Transceiver
HELD SERVICE HANDBOOK

OKIFAX OF-38 FACSIMILE TRANSCEIVER
FIELD SERVICE HANDBOOK
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CONTENTS
Page
CHAPTER 1.
GENERAL INFORMATION ..............................
1 - 1
1.1
Features ..................................................
l-1
1.2
General Appearance
.......................................
1 - 3
CHAPTER 2. SPECIFICATIONS
_. _. . . . . 2 - 1
CHAPTER 3.
3.1
3.2
3.2.1
3.3
3.3.1
3.4
3.5
INSTALLATION _. . . . . . . . . . . _.
3-l
General _._......_._.._______._...........______..........
3-l
InstallationSite ...........................................
Environments
.....................................
.._
....
Unpacking ...............................................
UnpackingProcedure .....................................
ContentsChecking ........................................
AC Cord Connection
......................................
3-2
3-2
3-2
3-2
3-3
3-3
3.6
Initial Settings
.............................................
3 -4
3.6.1 General
....................................................
3 - 4
3.6.2
SettingonPC Board ....................................... 3-6
3.6.3 Programming by
Tenkey Operation
......................... 3-19
3.7 Telephone and Line Connection
.............................
3 - 47
3.8 Frame Ground Connection
.................................
3 - 48
3.9
RS-232C Interface Connection
...............................
3 - 49
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3.10
Accessory Installation
......................................
3 - 50
3.10.1
Thermal Recording Paper
...................................
3 - 50
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3.10.2
Document and Copy Stackers ............................... 3 - 52
3.11
AC Power Setting Change .................................. 3 - 53
3.12 Off-line Test
.............................................. 3 - 54
3.13
On-lineTest ............................................... 3-55
3.13.1 General
................................................... 3-55
3.13.2
Reception ................................................. 3-56
3.13.3
Transmission .............................................. 3 - 56
CHAPTER 4.
4.1
4.2
4.3
4.4
4.5
MAINTENANCE
4-1 ..
..........................................
-.
Routine Inspection
.........................................
4- 1
Self-Diagnosis Tests
........................................
4- 3
Protocol Dump Printing
....................................
4- 18
ListofErrorDataontheReport ............................. 4-23
ListofServiceCodeontheReport ........................... 4-25
CHAPTER 5.
5.1
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
ADJUSTMENT ........................................... 5- 1
Electrical Adjustments
.....................................
5- 1
Ringing Signal Detection Sensitivity
.........................
5 - 1
DialToneandBusyToneDetectionLevel(1) .................. 5-3
Dial Tone and Busy Tone Detection Level (2) .................. 5 - 5
NAK Tone Detection ........................................ 5 - 7
BuzzerSound ............................................. 5-9
Near End (Black-Belt) Detection ............................. 5 - 10
5.2
Optical Adjustment
........................................
5- 12
5.2.;
General ................................................... 5-12
5.2.2 Setting-up for Adjustment
..................................
5 - 15
5.2.3 Measurements/Adjustments
................................ 5 - 16
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CHAPTER 6.
6.1
6.1.1
6.12
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.1.10
6.1.11
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
CHAPTER 7.
DISASSEMBLY & ASSEMBLY
.......................... 7-1
7.1
7.1.1.
7.1.2
7.2
7.3
How to Disassemble and Perform Assembly
.................. 7 - 5
7.3.1
FrontCover ............................................... 7-7
ADJUSTMENT ........................................... 6-
1
Electircal Troubleshooting Flow Chart
.......................
6- 1
Overall ................................................... 6-1
NoGoodLCDOperation .................................... 6-3
LitAlarmLED ............................................. 6-5
Abnormal Print-out
........................................
6- 6
NoGoodLocalCopy ....................................... 6-7
No Dial-Tone Detection
.................................... 6 - 9
NoAuto-Dialing
...........................................
6- 12
Transmission Communication Trouble
.......................
6- 14
NoAuto-Reception ............................. ...........
6- 16
Reception Communication Trouble
..........................
6- 17
Troubleshooting the Power Supply Unit
.....................
6- 19
Mechanical Troubleshooting
...............................
6- 23
Non-fed Document
........................................
6- 23
Multi-Feeding
...
:.
........................................
6 - 25
DocumentJam ............................................ 6-26
DocumentSkew ........................................... 6-27
RecordingPaperJam ....................................... 6-28
Recording Paper Skew
.....................................
6 - 29
Automatic Cutter Malfunction
..............................
6- 30
CutterAlarm .............................................. 6-31
HeatAlarm ............................................... 6-32
General ................................................... 7-l
Precautions for Parts Replacement
..........................
7 - 1
Tools ..................................................... 7-l
General Mechanical Structure
...............................
7- 2
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7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.8
7.3.9
7.3.10
7.3.11
7.3.12
7.3.13
7.3.14
7.3.15
7.3.16
FluorescentLamp
.......................................... 7-10
OPE(M) PC Board ......................................... 7-12
MODEM PC Board
........................................
7- 13
NCU PC Board
............................................ 7-15
MCNTZ PC Board, MCNTl PC Board, RR PC Board.
MB PC Board
............................................. 7-16
Side Cover(L), PCl, PC2, OPE (5) PC Board
..................
7- 20
Compartment Cover, Document Width Detection Switches 7
- 24
RearCover
................................................ 7-27
Side Cover (RI, Power Supply Unit
...........................
7 - 28
..~
Thermal Head Assembly
....................................
7 - 30
_~~~
SNS PC Board
.............................................
7-35
ADF Roller, Feed Rollers, AUX PC Board
.....................
7 - 37
AUX PC Board ............................................ 7-40
Pulse Motors & Gear Box, Cutter Unit, Print Roller
............. 7 - 42
Separation Rubber
.........................................
7 - 46
CHAPTER 8. BRIEF TECHNICAL DESCRIPTION . .
_ . . . . . . . . . . .
a- 1
a.1
8.1.1
8.1.2
8.1.3
8.1.4
a.2
a.3
PC Board and Unit
. . . .
8 - 1
PC Board
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
a-l
,-
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
a-l
-,
Overall Circuit Diagram
_. . . . . . . . . . . . . . . . . . . . .
a- 1
General Block Diagram
___ __ ___.__...._._..: . . . . . . . .
8- 1
Signal Flow
................................................ a- 4
RS-232C Interface
......................................... 8 - 11
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CHAPTER I:
GENERAL INFORMATION
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CHAPTER 1.
GENERAL INFORMATION
1.1
Features ................................................. l-l
1.2
GeneralAppearance
............................
. ......... l-3
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CHAPTER 1. GENERAL INFORMATION
1.1
Features
The OKIFAX OF-38 has the following main features:
(1) Extra fine resolution
(2) MMR coding scheme
(3) CCITT ECM
(4) Image memory capacity: 1 M byte, 2M byte (option)
(5) 16-halftone transmission
(6) 60 one-touch keys
(7) One-touch key programing function
(8) 252 3-digit location codes
(9) Splittransmission
(10) 3 kindsofthecall back message
(11) Automatic page retransmission
(12) Print multi-copies at remote
(13) Sequential broadcasting
(14) 50 different delay times transmission
(15) Relay broadcast
(16) Relay broadcast initiation
(17) Ciphercommunication
(18) Feedertransmission
(19) Unique location parameter
(20) Function key programing
(21) Confidential reception
(22) No paper receive
l-l

(23
(24
(25)
(26)
(27)
(28)
(29)
(30)
(31)
TSI printing
Acoustic monitor
RS232Cinterface applications
Verification stamp
11 management reports print-out
22 local diagnosis tests
29 user’s function settings
42 configkation program settings
44 serviceman’s program settings
1-2

1.2
General Appearance
The general appearance of the OF-38 is shown in Figure 1.2.1 and Figure 1.2.2 below.
The operation control panel of the OF-38 is shown in Figure 1.2.3.
OPERATION
PAPER COMPARTMENT
COVER
FRONT COVER
Fig. 1.2.1
General appearance (front view)
RIGHT SIDE COVER
REAR COVER
I
AC INLET
Fig. 1.2.2
General appearance (rear view)
l-3

,
Fig. 1.2.3
Operation Control Panel of the OKIFAX OF-38
l-4

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CHAPTER 2:
SPECIFICATIONS

CHAPTER 2. SPECIFICATIONS
The table below gives the specifications for the OKIFAX OF-38.
Notes:
. P:
. PO:
. PP:
. TPP:
PROGRAM key
Temporary Programing
User Programing
Technical Programing
-
JO.
-
1
2
3
4
5
-
Item
rype of Apparatus
Desktop design
ApplicableTelephone Line
Communication Mode ialf-duplex
Transmission Mode
CCITT G2 and G3
Document Size
1) Width
Max.:
297 mm (IS0 A3 size)
Min.:
148 mm (IS0 A5 size)
2) Length
Specifications
CCITT G2 and G3 facsimile transceiver
) General Switched Telephone Network (GSTN)
!) 2-wire leased line
I) P8X extensions
Max.: 920 mm
Min.: 105 mm
* Service personnel can set to the unlimiting
document length. (TPP + 40)
2-l

do.
Item Specifications
6
Resolution
1) Horizontal direction
8 pelslmm
2) Vertical direction
a) 3.85 lines/mm (STD)
b) 7.7 lines/mm (FINE)
c) 15.4 lines/mm (EXT. FINE)
Scanning System
.2,592-bit CCD image sensor
. Light source: Fluorescent lamp; 14W green
8
Recording System
2,048 dots flat-bet thermal printing
9
Coding Scheme
1) One-dimensional coding scheme:
MH (Modified Huffman)
2) Two-dimensional coding scheme:
MR (Modified READ)
3) MMR (Modified Modified READ)
10
MODEM 1) High-speed MODEM
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)
3) Group 2 MODEM
CCITT Rec. T.3 (AM-PM-VSB)
2-2

IO.
kern
Specifications
11
Transmission Time (Image)
9 seconds
12
Error Correction
1) OKI ARQ (Automatic Repeat Request)
Type A & B
2) OKI CCITT ECM (Error Correction Mode)
3) CCITT ECM (Standard)
l Service personnel can set above functions to
on/off as the default state:
. ARQ:
TPP + 02
. CCITT ECM: TPP+06
13
Image Memory Capacity
.l Mbyte
.2 Mbyte (option)
14
Half-tone Transmission
. 1 &scale gradation
. Dither algorithm
15
Protocol
1) CCITT Rec. T.30
2) OKI special protocol
a) Short cut protocol
During interval of multi-document
transmissions
b) High-speed protocol
Message transmission speed, instead of 300 bps,
during multi-document transmissions
* Service personnel can set the function to
on/off as the default state. (TPP + 01)
2-3

\]a
Item
Specifications
16
Fall-back
. The automatic fall-back system will attempt
transmission in the following sequence in accordance
with an FTT/RTN response signal from a remote
machine.
9600 + 7200 - 4800 --f 4800
+ 2400 +
(second)
2400 bps --f DCN
(second)
. The transmitter can transmit a DCN signal to
the remote station for disconnection after the
second 2400 bps transmission is attempted.
1) OKI ARQ (by receiver side)
The automatic fall-back system can have
the receiver send either a NAK tone 5 times
continuously, or 10 times non-consequentive.
9600 + 7200 + 4800 + 2400
If at 2400 bps, the receiver has not made a successful
detection in 30 seconds of the normal frame, the
receiver can transmit a DCN signal as an error
communication.
2) CCITT ECM
The automatic fall-back system will use the
following sequence if the transmitter has not
detected the MCF from the receiver, after the
transmitter has sent the same block 4 times
continuously.
9600 + 7200 +4800 + 2400 bps
. At 2400 bps, the transmitter can send the same block
continuously to a maximum of 24 times.
However, if the transmitter has not detected a MCF
from the receiver, the transmitter can send a DCN
signal as an error communication.
2-4

NO.
Item
Specifications
17 Auto Dialing 1) One-touch key
60 one-touch keys are provided.
a) Start button
User or service personnel can set to use START
button or not after pressed an one-touch key
for auto dialing. (PP+ 09)
b) One-touch key programing function
User or service personnel can program some
parameters to each one-touch key individually.
The parameter is maximum 10 functions and
should not exceed 60:
. SENDER ID . CALL BACK MSG
. NO REDUCTION . POLLING RX
. SPLIT TX . RELAY B. CAST
. REVERSE POLL . MULTI-COPY
. G2 TX . DELAY SEND/POLL
. PAGE RE-TX
. MAIL BOX TX
. FEEDER TX
. LINE MONITOR
. CONFIDENTIAL TX
2) 3-digit location code
252 different location code are available.
l Two telephone numbers can program for
automatic alternate calling. (PP + 23)
3) Full-digit location
Operator can useten-key pad for a full-digit
location number.
18 Auto Redial Fixes the number of redial attempts in accordance with
PTT parameter.
INT’L: 2 tries (fixed)
2-5

lo.
Item Specifications
19
Manual Redial
. REDIAL key provided
. No limit on number of repeat attempts.
20
Voice Request
VOICE REQUEST key provided
1) From transmitter side
Available only after the entire message has been
transmitted.
2) From receiver side
Possible after the page has been received.
21
Closed User Group
The OF-38 compares the last 4-digit of an auto-dialed
number:
1) Receiver side
To protect direct mail
2) Transmitter side
To prevent callingwrong number
* Default state: PP+45
Temporary setting: PO + 18
22
Total Page Set
. By key operation, the OF-38 can inform the receiver of
which document of a number of documents is
currently being transmitted.
. The receiver station will print this out on the top of
the recording paper, such as “001/005”.
23 Local Copy
Available
2-6

IO.
Item
Specifications
!4 Split Transmission
The OF-38 can separately transmit the right and left
haves so that the receiving machine can receive two
copieswithout reduction in the size of printed message.
* Temporary setting:
P+5
Split Transmission format (example)
Original Document
I
Printed Message
D
Center mark
2-7