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Document Revision History Corrected items Person in Rev.No. Date Section Page Description of change charge 2000-03 ISSUE E3 Endo 2000-07-21 Change the APPENDIX D. EF Oba 2000-10-31 Add the OKIOFFICE87, etc. EF Saito 2001-05-08 Change the APPENDIX D. NP3 Oba 41309401TH Rev.4...
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PREFACE This manual is intended to be used for installing and maintaining OKIFAX4550/OKIOFFICE87 facsimile transceiver. Maintenance of the OKIFAX4550/OKIOFFICE87 is assumed to be conducted at the following levels: • Assembly-level maintenance for mechanical portions • Unit-level maintenance for electrical at portions CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED.
Actual Electo-photographic Process ..................147 Boards and Units ......................... 148 3.3.1 Boards and Units ....................148 Overall Dimension and Mechanical Structure of OKIFAX4550/OKIOFFICE87 ....150 4. MECHANICAL DISASSEMBLY AND REASSEMBLY ......... 151 Precautions for Parts Replacement ..................151 Tools ............................ 153 How to Disassemble and Reassemble ................
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6.16 Service Codes ........................213 6.16.1 G3 Service Code List ....................214 6.16.2 G4 Service Code Lists .................... 217 7. TROUBLESHOOTING AND REPAIR FOR OKIFAX4550/OKIOFFICE87 ..220 Overall Troubleshooting Flow Chart ..................222 No LCD Operation ....................... 223 Alarm LED On ........................224 Printing Test Failure ......................
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Function of Each Unit ....................275 2. Explanation of Signal Flow ...................... 278 OKIFAX4550 ......................... 278 OKIOFFICE87 ....................... 294 3. 46F Circuit Diagram (OKIFAX4550) ..................310 46F Circuit Diagram (1/13) .................... 310 46F Circuit Diagram (2/13) .................... 311 46F Circuit Diagram (3/13) .................... 312 46F Circuit Diagram (4/13) ....................
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Manipulating User Information ..................528 5. Model Main Screen ........................530 Screen Title ........................530 ONLINE Operation ......................530 APPENDIX H OKIFAX4550/OKIOFFICE87 TROUBLESHOOTING MANUAL ..533 1. General ............................ 533 2. Tools ............................533 3. Contents........................... 533 46F Board (OKIFAX4550) ..................... 533 R46 Board (OKIOFFICE87) ...................
• 128 mm to 356 mm (Length setting: Unlimited (1500mm) is also available.) (7) Automatic document feeder (ADF) • 20 sheets (NA Letter/A4-size: 20-1b bond/75 gm. Oki Data recommended paper) • 15 sheets (NA Letter/A4-size: 16 to 28-1b bond/60-105 gm) Note:...
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• Max. 8 sheets per minute (at NA letter size) (18) Pre-heating time • Approx. 30 sec. (Standby to Print) Note: This feature is not available OKIFAX4550/OKIOFFICE87 for ODA version. (19) Coding scheme • Modified Huffman (MH) • Modified READ (MR) •...
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Note: This is Phase C time at 3.85 line/mm and 33600 bps for 3 sec. in MMR code transmission. (22) Protocol • ITU-T Rec. T.30 • ITU-T Rec. G4 class 1 (option) • OKI special protocols: High-speed protocol (G3) (23) Error correction scheme • ITU-T ECM (24) Communication mode •...
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(21) G3 sequential broadcast (Memory) • Broadcast mode 90 stations at maximum for OKIFAX4550 120 stations at maximum for OKIOFFICE87 • Delayed broadcast mode (22) No paper/no toner reception (23) Memory-only reception (Memory reception even if paper does not run out)
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(44) PC interface • Standard: OKIOFFICE87 • Option: OKIFAX4550 Note: Hardware is mounted. (45) Language selection • 2 languages (LCD and Reports) (46) Reports • Activity report • Active memory files report • Protocol report • Message confirmation report (Single address and multiple addresses) •...
General Maintenance Functions Local tests (1) Self-diagnosis • CPU ROM/RAM check • FLASH memory check (Program, Language, Default) • RAM check • Print test (2) Sensor calibration (Adjustment of scanning level) (3) LEDs test (4) Tone send test (When NCU board is installed.) (5) Multi-frequency (MF) send test (When NCU board is installed.) (6) High-speed modem send test (When NCU board is installed.) (7) High-speed modem receive test (When NCU board is installed.)
General Appearance Figure 1.1 shows the general appearance of the OKIFAX4550/OKIOFFICE87. Figure 1.2 shows the control panel of the OKIFAX 4550. Tray-Paper Tray-Document Cover-Top Case-OPE (T) Cover-Front Cover-Main Cover Manual Document Stacker-Document Figure 1.1 General Appearance of OKIFAX4550/OKIOFFICE87 15 /...
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8.5" A4 RELAY PRINT DELAYED CONF.TX POLLNG OPERATION INIT.-TX 9/SPACE 10/PAUSE REPORT COUNTER LOCATION USER PRINTER PROG. CLEANING PRINT DISPLAY PROG. WXYZ PQRS 4550 OKIFAX STOP START UNIQUE EX FINE FINE ALARM PHOTO LIGHT NORMAL DARK SELECT HOOK AUTO REC HYPHEN SEARCH REDIAL...
Basic Performance Specifications Table 1.1 shows basic performance specifications. Note: Technical function setting Function program setting One-touch key pressed SELECT FUNCTION key pressed Table 1.1 (1/11) Basic Performance Specifications Item Specifications Applicable line 1) Public switched telephone network (PSTN) 2) Private branch exchange (PBX) (OT9+2) Line interface 1) Impedance 600Ω...
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Horizontal Reduction = ON) Note: Local copy: Printable reading width in local copy mode Automatic document feeder (ADF) Max. 20 documents for OKIFAX4550/OKIOFFICE87: NA Letter or A4 (20-1b/75 gm) Max. 15 documents: NA Letter or A4 (16-28 lb/60-105 gm bond paper) Documents shall be placed facedown on ADF stacker.
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Same as above Note: One single sheet should be loaded on the manual paper feeder for one occasion. For best results use Oki Data recommended papers 1) Xerox 4200 (20 - lb/75 gm base weight paper) 2) L-type paper for photo-printers...
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0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 The fax can discharge printed copies and stack them faceup. Copy stacking Maximum sheets on the copy stacker: 30* Note*: Oki Data recommended paper 20 / 41309401TH Rev.4...
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Table 1.1 (5/11) Basic Performance Specifications Item Specifications Scanning resolution Horizontal: • 300 dot/inch Note 1: In the local copy at standard (STD) resolution the dpi conversion is done from 300 dot/inch to 200 dot/inch. 2: 600 dpi × 15.4 line/mm : Copy is available for OKIOFFICE87.
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“MSG. IN MEMORY”, and the ALARM LED turns on. Minimum scan line time for receiv- 0 ms, when receiving in ECM mode or from an Oki Data facsimile. 5 ms at 15.4 line/mm or 7.7 line/mm and 10 ms at 3.85 line/mm when receiving from a non-Oki Data facsimile or non-ECM mode.
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(2M-byte) Note: ITU-T No.1 sample document is used to count the number of sheets. (MMR/STD/Sender ID : off) Note: OKIFAX4550/OKIOFFICE87 does not back up the message received in memory for the power failure. Overheat protection The heater of the fuser unit is controlled within the predeter- mined temperature range by the thermistor.
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3) PC FaxModem function 4) Location Programing function Note1: This function will be supplied as the OKIFAX 4550 option in case Oki Data can get the approval in respective countries without modifying the optional unit. (Hardware is standard and software is option for Bi-centro interface.)
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Table 1.1 (10/11) Basic Performance Specifications Item Specifications (3) OKIOFFICE87 US/CANADA Versions Typical Power Max. Power Mode Transmit Receive 104W 115W Local copy 141W 157W Standby 5.4W 6.1W (4) OKIOFFICE87 INT’L Versions Typical Power Max. Power Mode Transmit Receive 102W 112W Local copy 143W...
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Table 1.1 (11/11) Basic Performance Specifications Item Specifications 1) AC power cord × 1 Attachment 2) I/D unit × 1 (Already installed) (to the main body) 3) Toner cartridge × 1 4) Tray - Paper 5) Tray - Document 6) Document stacker × 1 7) Line cord ×...
Reports and Lists Table 1.2 shows Reports and Lists Specifications. The described information for FAX2NET service referes to "FX-046FAX/MFP Product Specification". Note: F +OT: Press FUNCTION and One-touch key Function program setting Technical function setting Table 1.2 (1/2) Reports and Lists Specifications Item Specifications Call-back message...
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Table 1.2 (2/2) Reports and Lists Specifications Item Specifications Telephone directory This directory is printed manually. (REPORT PRINTING + 4) Configuration report This report is printed manually. (REPORT PRINTING + 5) Active memory files This report will be manually or automatically printed out for information of transmission/reception data stored in the memory.
MESSAGE CONFIRMATION 07/01/2000 08:05 ID=OKI DATE S,R-TIME DISTANT STATION ID MODE PAGES RESULT 07/01 00'20" CALLING 0000 Message Confirmation Report (MCF) 29 / 41309401TH Rev.4...
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MESSAGE CONFIRMATION 07/01/2000 17:05 ID=OKI DATE S,R-TIME DISTANT STATION ID MODE PAGES RESULT 07/01 00'20" B.C. COMP. 60A0 150 km IMAGE in MCF with Memory TX 30 / 41309401TH Rev.4...
17:05 ID=OKI TOTAL TIME TX=08:22' RX=17:30' DATE TIME S,R-TIME DISTANT STATION ID MODE PAGES RESULT 06/29 10:00 01'20" OKI FAX 0000 06/29 10:10 01'00" 0485 88 3385 STOP 9080 06/29 10:30 00'20" ODS TAKASAKI 90C1 06/29 12:05 01'20" OKI FAX...
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DATE TIME DISTANT STATION ID MODE PAGES POLL TX 07/02 12:05 POLL RX TRANSMISSION DATE TIME DIDTANT STATION ID MODE PAGES 07/01 20:00 OKI DATA SYSTEMS 07/01 12:03 0273242117 07/01 19:00 ODC TAKASAKI Active Memory Files 32 / 41309401TH Rev.4...
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15) TEL N0.: Up to 20 digits are printed. 16) CALL BACK N0.: Up to 20 digits are printed. 17) FORWARDING N0.: Up to 32 digits are printed for OKIFAX4550 and up to 40 digits for OKIOFFICE87. 18) SERVER TEL N0.: When FAX2NET FUNCTION is set to ON, up to 32 digits are printed for OKIFAX4550 and up to 40 digits for OKIOFFICE87.
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Report image CONFIGURATION P1 02/14/2000 12:00 ID=ODS FUNCTION LIST 01:MCF (SINGLE-LOC.) 02:MCF (MULTI-LOC.) 03:ERR.REPORT (MCF) 04:IMAGE IN MCF 05:SENDER ID. 06:MONITOR VOLUME 07:BUZZER VOLUME 08:CLOSED NETWORK 09:TX MODE DEFAULT MIDDLE STD/NORMAL 10:T/F TIMER PRG. 11:RING RESPONSE 12:DISTINCTIVE RING 35SEC 1 RING 13:PAPER SIZE 14:USER LANGUAGE 15:INCOMING RING...
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CONFIGURATION P2 02/14/2000 12:00 ID=ODS DIAL PARAMETER REDIAL TRIES 3 TRY REDIAL INTERVAL 3 MIN DIAL TONE DETECT BUSY TONE DETECT MF(TONE)/DP(PULSE) PULSE DIAL RATE 10 PPS PULSE MAKE RATIO PULSE DIAL TYPE MF(TONE) DURATION 100MS PBX LINE PBX TYPE NORMAL AUTO START DIAL PREFIX...
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CONFIGURATION P3 02/14/2000 12:00 ID=ODS FUNCTION LIST 01:SERVICE BIT 02:MONITOR CONT. 03:COUNTRY CODE 04:TIME/DATE PRINT 05:TSI PRINT 06:TAD MODE TYPE2 07:REAL TIME DIAL 08:TEL/FAX SWITCH 09:MDY/DMY TYPE2 10:LONG DOC. SCAN 11:TONE FOR ECHO 12:MH ONLY 13:H/MODEM RATE 14:T1(TX) TIMER VALUE 15:T1(RX) TIMER VALUE 33.6K 16:T2 TIMER VALUE...
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Telephone Directory Print conditions Formats of OKIFAX4550, and OKIOFFICE87 shall be made common. OKIFAX4550 OKIOFFICE87 Number of OTs Number of ADs Number of groups Maximum number of digits of OT/AD Tel No. Maximum number of digits of OT OR Tel No.
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GROUP NUMBER = #1 #2 #3 #4 #5 <#1 ONE TOUCH> <#1 AUTO DIAL> <#2 ONE TOUCH> <#2 AUTO DIAL> <#3 ONE TOUCH> <#3 AUTO DIAL> <#4 ONE TOUCH> <#4 AUTO DIAL> <#5 ONE TOUCH> <#5 AUTO DIAL> OKIFAX4550 Telephone Directory (3/3) 41 / 41309401TH Rev.4...
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TELEPHONE DIRECTORY P3 02/14/2000 12:00 ID=ODS GROUP NUMBER = #1 #2 #3 #4 #5 <#1 ONE TOUCH> <#1 AUTO DIAL> 99 100 <#2 ONE TOUCH> <#2 AUTO DIAL> <#3 ONE TOUCH> <#3 AUTO DIAL> <#4 ONE TOUCH> <#4 AUTO DIAL> <#5 ONE TOUCH>...
BROADCAST CONFIRMATION REPORT 07/01/2000 17:05 ID=OKI PAGES = 01 START TIME = 07/01 10:00 TOTAL TIME = 00:02'30" LOCATION ID PAGES RESULT LOCATION ID PAGES RESULT ONE TOUCH 1 = HEAD OFFICE 2 = OT2 3 = OT3 4 = OT4...
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• Image processor LSI RAM check • Setting DEFAULT TYPE and reading clock at self diagnosis execution. The following printing differs depending on the machine type of OKIFAX4550/OKIOFFICE87 and on the condition of option provided or not. “4M” is printed for OKIFAX4550 and “6M” for OKIOFFICE87.
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LANGUAGE VERSION aaaa HASH hhhh DEFAULT VERSION aaaa HASH hhhh RAM1 RAM2 DEFAULT TYPE 03/03/2000 12:00 DEVICE ID MFG:OKI DATA CORP; MDL:FX-046FAX; DES:OKI FX-046FAX; OPT-RAM ISDN BOARD CPU-ROM VERSION aaaa HASH hhhh CPU-RAM PROGRAM VERSION aaaa HASH hhhh DPRAM 54 / 41309401TH Rev.4...
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Protocol Dump The printing image is as follows: PROTOCOL DUMP P1 08/25/2000 19:00 ID=OKI TAKASAKI DATA TIME S,R-TIME DISTANT STATION ID MODE PAGES RESULT 04/19 14:49 00’07" OKI SHIBAURA(6412) TX-G4 0000 Dch. SETUP CONN-ACK +Bch+ DISC REL-C STATUS SETUP-ACK CONN +Bch+ Bch.
INSTALLATION PROCEDURE Setup Information 2.1.1 General The following flowchart outlines the installation procedure. (See 2.1.2) Site selection (See 2.1.3) Unpacking (See 2.1.4) Check of contents (See 2.1.5) Installation of attachments (See 2.1.6) AC cord connection (See 2.1.7) Telephone and line connections (See 2.1.8) Packing for shipment (See 2.2.1.1)
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(See 2.2.1.7) Dual access operations System data programming (See 2.2.1.8) TSI/sender ID included. One-touch key programming Two-digit auto dial programming Group setting (See 2.2.1.9) Dial parameter settings Programming mail box password Memory operations (See 2.2.1.10) Off-line tests (See 2.2.1.11) On-line tests * : See user's guide 58 / 41309401TH Rev.4...
2.1.2 Site Selection INSTALLATION Precautions for Installation (1) Fluctuation in line voltage • 120VAC (102V to 127V) • 230VAC (198V to 264V) (2) Room temperature 50 to 90°F (10 to 32°C) (3) Humidity 20 to 80% RH (4) Operating environment Pressure: Equivalent to altitude of 2500 m and below.
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11.81" 19.69" (300mm) (500mm) In case of scanning length (Max. 14 inches: 356mm) Note: This space is necessary for having the telephone set. (page 62) This space is necessary for installing the document stacker. This space is necessary for ventilation. (7) Levelness of installation surface 1 degree max.
2.1.3 Unpacking Procedure (1) Remove tape on the top of the carton box and open its cover. External carton box Packing tape Packing tape Carton label Figure 2.1 (1/2) Unpacking Procedure (2) Take out the accessory box from the carton box. (See Figure 2.1) (3) Take out the machine with plastic wrapper from the box.
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Accessories box Right cushion assembly Left cushion assembly (Top) (Top) Front Fixed tape Machine Left cushion assembly (Bottom) Polyethylene film Right cushion assembly (Bottom) External carton box Figure 2.1 (2/2) Unpacking Procedure 62 / 41309401TH Rev.4...
After having taken out the machine and accompanied accessories from the carton box, check the contents according to the following list: Table 2.1 Contents List Item No. Name Q'ty Remarks OKIFAX4550/ OKIOFFICE87 AC power cord I/D unit Already installed. Toner cartridge Line cord One touch sheet Already installed.
2.1.5 Installation of Attachments (1) Items • Image Drum (ID) Unit (already installed) • Toner cartridge • Recording paper • Tray-paper, Tray-document and Document-stacker (2) Procedure Toner cartridge • Peel off the fixed tape attached to the cover-top. • Open the cover-top. Cover-Top Figure 2.2 Toner Cartridge Installation (1) •...
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• Take out the toner cartridge from the damp proof bag, shake it five or six times as shown in the illustration to eliminate the toner deflection, and peel off the seal gently. Seal Toner cartridge Figure 2.2 Toner Cartridge Installation (3) •...
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• Push the gray tab forward until it stops. Toner cartrige Gray tab Figure 2.2 Toner Cartridge Installation (5) • Clean the toner scattered in the vicinity of the toner cartridge using a cloth moistened with cold water. Do not use hot water since it makes the toner stick there. •...
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(3) Recording paper Note: About 100 sheets of the new paper can be set on the tray-paper. Loading the new paper. Sheets must not exceed 100 sheets of the new paper on the tray-paper. If excessive sheets are set, it will cause paper jams. Tray-paper New paper (print-side down): 100 sheets Figure 2.3 Recording Paper Cassette Installation...
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(4) Tray-paper, Tray-document and Document-stacker • Hang the tray-paper, the tray-document and the stacker-document onto hanging position. Tray-paper Tray-document Cover-top Stacker-document Figure 2.4 Document Stacker Installation 68 / 41309401TH Rev.4...
2.1.6 AC Cord Connection The power supply is provided as follows. Nominal input voltage 120VAC (Voltage range 102 to 127VAC) Nominal input voltage 230VAC (Voltage range 198 to 250VAC) Check whether the AC voltage of your input is within the above-mentioned voltage range and if so, check that the power switch is turned OFF.
Figure 2.5 Telephone and Line Connections 2.1.8 Packing for Shipment CAUTION: When packing the OKIFAX4550/OKIOFFICE87 series for shipment, REMOVE THE IMAGE DRUM AND TONER FROM THE UNIT AND SHIP SEPARATELY! Failure to do this will result in damage to the machine.
Programming and Initial Settings 2.2.1 Initial Settings 2.2.1.1 General Procedure of Key Operation Figure 2.6 shows the general procedure of key operation. (STANDBY MODE) (Press the SELECT FUNCTION key.) COPY COPY X2 SELECT FUNCTION (OT) Selection by One-touch key To technical program [Prg.
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Powered on while holding the 01: MCF. (SIGNLE-LOC.) SELECT FUNCTION key down. 02: MCF. (MULTI-LOC.) 03: ERR. REPORT (MCF.) *4 04: IMAGE IN MCF. Selection by YES/NO keys or digit (1 to 8) 05: SENDER ID 06: MONITOR VOLUME OT9: USER PROGRAMMING 07: BUZZER VOLUME 08: CLOSED NETWORK 09: TX MODE DEFAULT...
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Powered on while holding the COPY key down. Selection by YES/NO keys or digit (1 to 5) TECHINICAL PROGRAMMING Selection by YES/NO keys or digit (1 to 8) 1: SELF DIAGNOSIS 1: LOCAL TEST 2: SENSOR CALIBRATION 9: LOOP BACK 1 3: LED TEST 10: LOOP BACK 2 4: TONE SEND TEST...
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Note: When the machine is in POWER SAVE MODE, the machine returns to standby mode by pressing the START key. *1: In case of Germany, Austria and Switzerland version, ACTIVITY REPORT message does not appear on the LCD display. *2: User can read no. of counter in LCD but can not clear. *3: User can not select in some countries.
2.2.1.2 Technical Functions T.F. This section explains setting items generally conducted by service personnel, not by users. Item Specifications Default Table 2.2 shows the initial setting items and their purposes. (The default setting is different by the individual countries.) Each item can be accessed by entering the corresponding service number on Technical Function.
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Table 2.2 (1/8) Service Personnel Initial Settings T.F. Item Specifications Default Switching serviceman/user operation. Service bit ON : Service personnel’s features are available. OFF : Service personnel’s features are not avail- able. To enable or disable the following functions: • Drum (Total, Print, Scan), and toner counter clear •...
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Table 2.2 (2/8) Service Personnel Initial Settings T.F. Item Specifications Default TAD mode Switches an automatic voice message response (For external telephone to the calling station. answering device.) TAD mode is of three types (TYPE1/TYPE2/ TYPE3). OFF/TYPE1/TYPE2/TYPE3 selectable. TYPE1 means: 1.
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Table 2.2 (3/8) Service Personnel Initial Settings T.F. Item Specifications Default MDY/DMY Switches LCD display and report print from month/day/year to day/month/year or vice versa. MDY/DMY selectable. Long document SCAN Switches the function of transmitting long-size document (more than 360 mm). ON : 1500 mm or 60 min.
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Table 2.2 (4/8) Service Personnel Initial Settings T.F. Item Specifications Default T2, timeout value (layer) T2, timeout value Registers the time duration (in seconds) for which the receiving fax detects the EOL (End Of Line) signal during phase C. The fax will discon- nect the line when EOL cannot be detected within T2.
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Table 2.2 (5/8) Service Personnel Initial Settings T.F. Item Specifications Default 0 to 15 dB. selectable (except FRE) 7 to 15 dB, selectable (FRE) At country code = CHN, set the actual set value +2dB. Note: The send signal power level should meet your country’s regulation.
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Disables NSF signal Note: When NSF switch = OFF, the fax opera- tion is shown as below. • When transmitting, even if OKI NSF signal is detected from the remote machine, the fax transmits DCS signal (The fax does not trans- mit NSC signal.)
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Table 2.2 (7/8) Service Personnel Initial Settings T.F. Item Specifications Default ID/TSI priority Selects ID/TSI printing in the distant station ID column of the report. Prints NSF signal with personal ID. TSI: Prints TSI signal without NSF. Set to ID Set to TSI Priority Personal ID...
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Table 2.2 (8/8) Service Personnel Initial Settings T.F. Item Specifications Default Fax2Net Function Set up whether to make Fax2Net service. Enable OFF: Disable * The following Fax2Net service can use only when Fax2Net function is set to ON. Web Retrieval/Broadcasting/Prepaid Regis- tration Top Feed Adjusts read start position of various machines.
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TEL/FAX automatic switching This function is used for the purpose of TEL/FAX automatic switching as follows. (1) If the machine detects a call with a CNG signal indicating an auto send facsimile call, it starts an automatic document receiving operation. (2) If machine detects a call without a CNG signal, machine generates the buzzer sounds as a telephone call.
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Switch Over Time (20/35 sec) LIFT HANDSET Load document NSF, CSI, DIS Press START AUTO REC. START Button OKI TOKYO RECEIVING G3/33.6K Manual Transmission CML"OFF" 1 sec 1 sec 3.2 sec To detect CNG signal Note *1: Ring Back Tone — 1 sec. ON, 3.2 sec. OFF *2: When you want to talk by phone, pick up handset.
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TAD mode TAD: Telephone Answering Device TAD can be connected to external telephone terminal to record your messages. TAD records your speech and switches an automatic voice message response to the calling station. Note 1: A choice of TAD mode is available by Technical Function No. 06. The predetermined time is selectable between 20 or 35 sec.
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• TAD mode flow chart In case of TYPE 2: If the fax does not detect CNG signal during working of TAD, the machine will go to standby mode. In case of TYPE 3: The fax does not detect CNG signal during 15 seconds from TAD operation starting. The fax starts CNG signal detection after 15 seconds from TAD operation.
2.2.1.3 Technical Functions Example Note: The fonts displayed on the LCD operation panel may differ from the fonts written this manual. (1) Service Bit Setting Purpose To enable or disable the following functions: • Drum and toner counter display (clear) •...
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(2) Technical functions Operations: The display shows: 14:14 FAX (Standby) Press SELECT FUNCTION key. FUNCTION SELECT FUNCTION (OT) MEMORY AVAIL.=100% COPY Press COPY key twice. COPY TECH. PROGRAMMING YES(←/1-5) NO(→) ← ← Press key. 1:LOCAL TEST YES(←) NO(→/1-6) → Press key.
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Table 2.4 (1/6) Technial Functions T.F. Name of Function The Display Shows Service bit → 01:SERVICE BIT Setting (Toggle) [ X ] YES(←) NO(→) → ← X: OFF Line monitor control → 02:MONITOR CONT. Setting (Toggle) [ X ] YES(←) NO(→) →...
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Table 2.4 (2/6) Technial Functions T.F. Name of Function The Display Shows Tone for echo → 11:TONE FOR ECHO (echo protection) Setting (Toggle) [ X ] YES(←) NO(→) → ← X: OFF MH only → 12:MH ONLY Setting (Toggle) [ X ] YES(←) NO(→) →...
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Table 2.4 (3/6) Technial Functions T.F. Name of Function The Display Shows T2, timeout value 16:T2 TIMER *100MS [ X ] YES(←) NO(→) To 17: DIS BIT32 → X: 001 - 255 16:T2 TIMER *100MS ] ENTER 001-255 — 3-digit timer entered. →...
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Table 2.4 (4/6) Technial Functions T.F. Name of Function The Display Shows MF attenuator → 23:MF ATT. Setting [ X ] YES(←) NO(→) → → X:0 DB 1 DB → → → → 2 DB 15 DB 0 DB Ring duration detection time 24:RING DURA.
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Table 2.4 (5/6) Technial Functions T.F. Name of Function The Display Shows Media type → 27:MEDIA TYPE Setting [ X ] YES(←) NO(→) → → X: M Transfer roller clatch current → 28:TR LATCH CURRENT Setting [ X ] YES(←) NO(→) →...
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Table 2.4 (6/6) Technial Functions T.F. Name of Function The Display Shows Top feed → 38:TOP FEED Setting [ X ] YES(←) NO(→) → → → → → → Bottom feed → 39:BOTTOM FEED Setting [ X ] YES(←) NO(→) →...
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Table 2.5 G3 Fallback Object Service Code List (If G4 TX is faulty) Classification Code Description Remarks Dch layer 3 BA01 Unallocated (unassigned) number BA02 No route to specified transit network BA03 No route to destination BA06 Channel unacceptable BA07 Call awarded and being delivered in an established channel BA10 Procedure sequence error, Line disconnected during in-band procedure...
2.2.1.4 User’s Functions This section explains the items usually set up by general users. Table 2.6 shows the initial setting items and their purposes. Each F.P.can be accessed by entering the corresponding function number on Function Program- ming. The detailed procedure of the initial setting items will be explained on the following pages. Note: S-ON: Effective if the service bit has been set on.
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1) One-touch dial 10 one-touch keys are provided. (OKIFAX4550/ OKIOFFICE87) Max. 32 digits for each location number for OKIFAX4550. Max. 40 digits for each location number for OKIOFFICE87. In addition to an ordinary location number, another alternate location number can be registered in to each one-touch key.
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2) Two/Three-digit dial 70 different codes are provided. (OKIFAX4550) 100 different codes are provided. (OKIOFFICE87) * Two- digit location code: 01 to 70 (OKIFAX4550) * Two-digit or max. three-digit location code: 01 to 99, 100 (OKIOFFICE87) 101 /...
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Table 2.6 (3/7) User's Functions Item Specifications Max. 32 digits for each location number for OKIOFFICE87. Max. 40 digits for each location number for OKIOFFICE87. Note 1: If a telephone number is registered, data can be registered without registering ID and communication parameters.
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In addition to fax numbers, an alpha/ numeric name can be Telephone directory and location assigned to each of one-touch keys and two/three-digit dial codes, 01 to 70, for OKIFAX4550 and 01 to 99, 100 for (Alpha search) OKIOFFICE87. Any location ID can be searched and displayed on LCD.
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One single sheet from the feeder below the paper exit can be copied. Example of sheets:Transparency for an overhead projector Broadcast Max. 90 (OKIFAX4550), Max. 120 (OKIOFFICE87) remote (Memory transmission) locations can be specified by the following means: • One-touch keys (with of without a group list).
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Table 2.6 (6/7) User's Functions Item Specifications No toner reception The fax can temporarily store received messages in memory when toner has run out. The messages are printed when toner has been newly supplied or an operator presses the SELECT FUNCTION key followed by the one-touch key No. 2 under the LCD message “PRINT MEMORY MSG.”...
Table 2.6 (7/7) User's Functions Item Specifications Dual Access Combination Table PC1 ON 2'nd 1'st Standby ON HOOK During FAX Calling During RING RESPONSE Call Reception During detection of TEL/FAX During TAD detection 1st Phase B Calling ~ Transmission Feeder TX Transmission after scanning During Scanning Memory TX...
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User's Initial Settings Note: The fonts displayed on the LCD operation panel may differ from fonts written this manual. 2)-1 One Touch Key Operations Restrict Access = ON ID NG 1 4 : 1 4 F A X POWER ON E N T E R I D →...
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(OKIFAX4550)/100 (OKIOFFICE87) is not assigned, relay broadcast report is not transmitted. When it is assigned, relay report is transmitted to fax number assigned to auto dial code 70, for OKIFAX4550 or to auto dial code 100 for OKIOFFICE87. Polling transmission/reception...
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(alphabetic, numeric and symbolic). (4) 10 one-touch keys are provided. 2. Two-digit or max. three-digit Auto-dial No. 01 to 70 for OKIFAX4550, No. 01 to 99, 100 for auto dial program OKIOFFICE87 allows registering telephone number in 32 digits (numeral, -, P and space) for OKIFAX4550 and 40 digits for OKIOFFICE87 and ID for the telephone directory maximum 15 characters (alphabetic, numeric and symbolic).
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1) Number of forwarding for incoming call destination that can be specified. OKIFAX 4550/OKIOFFICE87: 1 2) Number of characters used to specify a destination. 32 characters (numeral, -, P and Space) for OKIFAX4550 and 40 characters for OKIOFFICE87. 111 / 41309401TH Rev.4...
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1) FAX 2NET server telephone number: Telephone number of the FAX2NET server to be used (Max 32 digits for OKIFAX4550 and Max. 40 digits for OKIOFFICE87). 2) Account number: ID particular to terminal registered in FAX2NET service.
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Table 2.7 (5/6) User's Initial Settings (One-touch key Program) F+OT Item Specifications 11. ISDN programming Sets to Country code, ISDN No. (subscriber number), ISDN ID (subscriber code) and ISDN sub address. 1) Setting values This setting consists of the following: •...
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2)-2 Function Program Table 2.8 (1/6) User's Initial Settings (Function Program) P.F. Item Specifications Default Message confirmation report Enables or disables the automatic message (Single location) confirmation report printing after a single loca- tion call. Printing the MCF report. OFF: Disables this function. Message confirmation report Enables or disables the automatic message (Multiple locations)
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Table 2.8 (2/6) User's Initial Settings (Function Program) P.F. Item Specifications Default Closed network The fax compares lower four digits of TSI/CSI received from remote station with fax numbers registered locally for one-touch dial and two-digits autodial. If unmatched, the communication will be auto- matically disconnected.
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Table 2.8 (3/6) User's Initial Settings (Function Program) P.F. Item Specifications Default User language A choice of 2 languages for LCD and print mes- sage are available. GER, FRE etc. are displayed insted of OTHER. ENGLI/OTHER selectable. Incoming ring Instead of ringer circuit, software can control built- in speaker to ring sound.
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Table 2.8 (4/6) User's Initial Settings (Function Program) P.F. Item Specifications Default PC/FAX switch To enable or disable PC interface function. When PC reception is not available, for example, application is not activated on the PC or cable is missing between PC and fax etc., this setting allows to switch from PC to fax reception auto- matically.
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Table 2.8 (5/6) User's Initial Settings (Function Program) P.F. Item Specifications Default Width Reduction This function can print characters written at the edges of a document. Switches the reduction of the horizontal scanning direction. ON: Reduction printing (216 mm to 203 mm) Reduction rate is shown as below.
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Table 2.8 (6/6) User's Initial Settings (Function Program) P.F. Item Specifications Default Speech Receive Determine whether the incoming call is answered when the information transmission capacity instracted by the network is voice transmission. 1) Setting values ON(Answered)/OFF(Not answered) • This setting cannot be made when G4 op- tion board is not provided.
2.2.1.5 User's Functions Example Note : The fonts displayed on the LCD operation panel may differ from fonts written this manual. Function Program Operations: The display shows: To bring the LCD up to the desired mes- 1:FUNC. PROGRAMMING sage, press SELECT FUNCTION key ←...
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Table 2.10 (1/4) User's Functions Tap No. Name of Function The Display Shows → Message 01:MCF(SINGLE-LOC.) Setting (Toggle) confirmation report → ← X: OFF ← → ] YES( ) NO( (Single location) → Message 02:MCF (MULTI-LOC.) Setting (Toggle) confirmation report →...
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Table 2.10 (2/4) User's Functions Tap No. Name of Function The Display Shows → Note 3 Paper size 13:PAPER SIZE Setting ← → ] YES( ) NO( → → → X: A4 LGL 13 LGL 14 ← ← ← JISB5 EXEC.
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Table 2.10 (3/4) User's Functions Tap No. Name of Function The Display Shows → No toner memory 22:NO TONER MEM. RX Setting (Toggle) reception ← → ] YES( ) NO( → ← X: OFF → Memory full save 23:MEM FULL SAVE Setting (Toggle) ←...
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Table 2.10 (4/4) User's Functions Tap No. Name of Function The Display Shows Note 5 → Speech receive 31:SPEECH RECEIVE Setting (Toggle) ← → ] YES( ) NO( → ← X: OFF Note 6 → USB Conv. mode 32:USB CONV. MODE Setting (Toggle) USB: Universal ←...
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Note 1: RESOLUTION & ORIGINAL of Tx mode defult setting can be selected by using → key. STD / NORMAL STD / DARK STD / LIGHT FINE / NORMAL EX. FINE / NORMAL FINE / LIGHT FINE / DARK EX. FINE / DARK EX.FINE / LIGHT PHOTO / NORMAL PHOTO / DARK...
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Ring response time Before specifying the ring response time, set the service bit on following the operations shown in 2.2 (1/8). (Service Bit Setting). Operations: The display shows: To bring the LCD up to the desired SELECT FUNCTION (OT) message, press SELECT FUNCTION MEMORY AVAIL.=100% key once and one-touch key No.
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Dial parameters (In case the service bit is "OFF".) To get the "DIAL PARAMETER" message on the display, perform the same operetion as Table 2.11.(Dial parammeters settings) 2:DIAL PARAMETER ← → YES( /1-9*#) ← REDIAL TRIES Available for USA, INT'L, NOR, SWE, FIN. GER, HUN, ←...
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The following table can be set depending on the National codes even if the service bit is "off". Table 2.11 Dial parameters setting if the service bit "OFF" NATIONAL CODE USA INT'L GBR IRL NOR SWE FIN DEN GER HUN TCH POL Redial tries Redial interval Dial tone detect...
2.2.1.6 Clock Adjustment Operations: The display shows: To bring the LCD up to the desired message, SELECT FUNCTION (OT) press SELECT FUNCTION key once and MEMORY AVAIL.=100% one-touch key No. 9 in the standby mode. (In case of no message in memory) Press OT9 Enter 3 using the ten-key pad.
2.2.1.7 Dual Access Operation OKI TOKYO OKI TOKYO OKI TOKYO SENDING /144 RECEIVING/144 MEMORY-RX/144 Set documents during memory TX Set documents Set documents or set documents during feeder TX after the end of the pre-scanning RELOAD DOCUMENT Pre-feed error SELECT LOCATION...
2.2.1.8 System Data Programming • TSI/CSI (Defalut: Blank) • Registration of sender ID (Defalut: Blank) • Registration of telephone number for the call-back message (Defalut: Blank) Operations: The display shows: To bring the LCD up to the desired SELECT FUNCTION (OT) message, press SELECT FUNCTION MEMORY AVAIL.=100% key once and one-touch key No.
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Operations: The display shows: Continued from the previous page. NO=03 3404 7123 ID=OKI (Example) Press START key. START NO=<CALL BACK NO.> 3 SEC LATER NO=_ 03..5 NO=03 3404 7765_ (Example) START Press key. START 134 / 41309401TH Rev.4...
2.2.1.9 Dial Parameters Settings (1) Procedure The following shows the case in which the service bit is on. Operations: The display shows: To bring the LCD up to the desired message, SELECT FUNCTION (OT) press SELECT FUNCTION key once and MEMORY AVAIL.=100% one-touch key No.
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The display shows: Continued from the previous page. 2:DIAL PARAMETER ← → YES( /1-9*#) ← (1) Redial time REDIAL TRIES "0 TRY" to "10 TRY", ← → [2 TRY] YES( ) NO( "1 TRY" to "5 TRY" (country code=FRE) ← →...
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Table 2.13 Dial Parameters Settings Item Specifications Dial parameters Redial tries Switches on the re-dial times to meet the regulations of the installed country. 0 to 10 tries (in one-try steps) 1 to 5 tries for FRE. Redial interval Switches on the re-dial intervals to meet the regulations of installed country.
2.2.1.10 Off-line Tests (1) Purpose Activate self-diagnosis which includes: • Print test • CPU-ROM version printing • CPU-RAM check • PROG version printing • LANGUAGE version printing • DEFAULT version printing • RAM check • RAM check (memory board: optional) (2) Procedure Operations: The display shows:...
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LANGUAGE VERSION aaaa HASH hhhh DEFAULT VERSION aaaa HASH hhhh RAM1 RAM2 DEFAULT TYPE 03/03/2000 12:00 DEVICE ID MFG:OKI DATA CORP; MDL:FX-046FAX; DES:OKI FX-046FAX; OPT-RAM ISDN BOARD CPU-ROM VERSION aaaa HASH hhhh CPU-RAM PROGRAM VERSION aaaa HASH hhhh DPRAM Figure 2.7 Printed Data of Self-diagnosis Print Test (Example)
2.2.1.11 On-line Tests Transmission (1) Load documents (2) Make sure that • The loaded documents are fed in automatically. • The STD and NORMAL lamps light. • The display shows SELECT LOCATION. (3) Dial the telephone number of the remote machine by the ten-key pad. (4) Make sure that the telephone number of the remote machine is shown on the display.
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X X : X X X X X (STANDBY CONDITION) (• LOAD DOCUMENT(S), SELECT RESOLUTION MODE) AUTO DIALING? Manual TX WHICH MODE? ONE-TOUCH TWO-DIGIT AUTO DIAL CODE • ONE-TOUCH KEY • PRESS "AUTO DIAL" KEY (e.g. No. 1) • SET THE CODE (e.g. 01) O K I T A K A S A K I 0 2 7 3 5 6 7 8 9 0 O K I T A K A S A K I...
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X X : X X X X X (← STANDBY CONDITION) MANUAL RECEIVE MODE • OFF-HOOK AND CONVERSATION • PRESS "START" KEY AUTO RECEIVE MODE? (• RINGING DETECTED) A U T O R E C . S T A R T M A N U A L R X S T A R T TSI &...
Fundamentals of the Electro-Photographic Process The electro-photographic process involves six sub-processes: (1) Charging (2) Exposure (3) Development (4) Transfer (5) Fusing (6) Cleaning Outline of each process is explained below. Process Illustration Description The surface of the electro-photo- graphic Image drum is uniformly charged with negative charges by applying a negative voltage to the Power...
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Process Illustration Description The recording paper is placed over the Image drum surface and a positive EP drum charge, opposite in polarity to the toner, is applied to the reverse side of the paper from the transfer roller. The toner is attracted by the positive charge and is transferred to the paper.
Actual Electo-photographic Process The electro-photographic process consists of six essential processes. The following Figure 3.2 provides a general description. 2 LED head Electro-photographic drum 1 Charge roller Toner 6 Cleaning roller 5 Heater roller 3 Developing roller Recording paper Back-up roller 4 Transfer roller * Process: 1 : Charging...
3.3.1 Boards and Units The following one board, Main control board and three units constitute the facsimile transceiver machine. • Main control board MCNT: (46F: OKIFAX4550, R46: OKIOFFICE87) • Network control unit board NCU: (INU/EN9) • Operation panel assembly unit...
Overall Dimension and Mechanical Structure of OKIFAX4550/OKIOFFICE87 Separation rubber Scanner block Roller - ADF LED head EP drum OPE board Roller - Heater Paper exit ID unit Roller - Scan Document exit Manual paper feeder inlet I mage sensor Printer block Roller - Hopping Figure 3.4 Overall Dimension and Mechanical Structure...
MECHANICAL DISASSEMBLY AND REASSEMBLY General The section explains the procedures for replacement of parts, assemblies, and units in the field. Only the disassembly procedures are explained here. For reassembly, reverse the disassembly procedure. Precautions for Parts Replacement DANGER Do Not You may be subjected to high-voltage electric shock by touching the following parts without an insulating material: Touch !
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(2) Do not try to disassemble as long as the facsimile is operating normally. (3) Do not remove unnecessary parts: Try to keep disassembly to a minimum. (4) When disassembling, follow the prescribed sequence. Otherwise, parts may be damaged. (5) Since screws and small parts are likely to be lost, they should temporarily be attached to their original positions.
Tools Table 4.1 shows the tools required for the replacement of parts such as circuit boards and mechanical units. Table 4.1 Tools Q'ty Remarks Service tools Philips screw driver (L) Philips screw driver (M) Flat screw drivers (S) Philips screw driver (S) Radio pliers Nippers Multimeter...
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Start Item number for detailed description (4.3.1) (4.3.1) LED Print Head Open the Cover Assembly-Top (4.3.2) ID Unit (4.3.2) (4.3.2) (4.3.2) Cover-Rear Cap-TEL-I/F Cover-Main (4.3.2) (4.3.4) (4.3.4) Board-NCU Open the Frame Separation Rubber Assembly Scanner (U) (4.3.3) (4.3.3) (4.3.3) Open the OPE Printer Unit Bracket-package Panel Assembly...
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Printer Unit Start (4.3.8) Open the Cover ID Unit Assembly-Top (4.3.8) Transfer roller (4.3.2) (4.3.2) (4.3.2) Cover Rear Cap-TEL-I/F Cover Main (4.3.9) (4.3.14) High-voltage Heat Power Supply Assembly (TLHV/OLHV) (4.3.9) Holder Assembly (4.3.17) (4.3.13) Paper Sensor E Drive shaft E Paper Sensor Exit and Eject Roller Toner Sensor Assy.
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Figure 4.2 Appearance of the OKIFAX4550/OKIOFFICE87 156 / 41309401TH Rev.4...
4.3.1 LED Print Head It is used two kind of head as the LED print head. (208 mm width or 216 mm width) (1) Disassembly procedure Open the cover assembly-top by raising. Cover assembly-top Disconnect the PC connector from the LED print head.
4.3.2 ID Unit, Rear-Cover, Cover-Main, Board-NCU or Board-G4N (1) Disassembly procedure Open the cover assembly-top by raising. Take out the ID unit from the equipment. ID unit Cover assembly-top Cover-Rear: Remove the Cover-Rear by remov- ing the screws two and the part of the fixing hooks (4).
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Board-NCU and Board-G4N Remove the Board-NCU or Board-G4N by removing the two screw 3 and disconnect the connector (CN3) from Board-46F or R46. Board-NCU or Board-G4N Screw 3 First, move the center of Guide-paper (L) and (R) of Holder assembly, and then, open the Cover-Main from the rear side.
4.3.3 Unit-046 OPE-Panel (1) Disassembly procedure First, carry out the disassembly pro- cedure up to the point of the 4.3.2 (Item (e). Cover-main). Cable 2 Dismount the Printer-Unit. OPE panel assembly (See Section 4.3.18) Open the OPE-panel assembly. OPE panel assembly: Remove the OPE panel assembly by Screw 3 removing two screws 3, the eight...
4.3.4 Separation Rubber, Roller Assembly Sensor (1) Disassembly procedure Separation rubber: The separation rubber can be removed from the Frame Assembly-Scanner (U). Frame Assembly-Scanner (U) Roller Assembly Sensor: Remove the Plate-Support by removing the two screws 1. Note: Just fitting to two bossess. Remove the two springs (L) and (R).
4.3.5 Roller Assembly-ADF, CIS (contact image sensor), Lever-PC1 and PC2 (1) Disassembly procedure First, carry out the disassembly procedure up to the point of the 4.3.2 and 4.3.3. Dismount the Printer-Unit. (See Section 4.3.18) Remove the Frame assembly-Scanner (L) by removing the four screws 1 and the four connectors.
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Plate Scanner (R) Plate Scanner B Plate Scanner (L) Plate Earth ADF Speaker Roller assembly-ADF Turn the Frame Assembly-Scanner in- side out and perform the disassembly procedure. Roller Assy-ADF Remove the Plate Scanner (L) by re- moving the two screws. Lever PC2 Remove the Speaker.
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Motor-S: Remove the Motor-S by removing the connector of motor and the two screws 1. Connector Motor-S Screw 1 Photo-Sensor (PC1, PC2): After disconnecting the two connec- tors, remove the photo-coupler sen- sors PC1 and PC2 on the Plate Scan- ner B by pressing the latch using the flat screwdriver or like.
4.3.6 Board-46F, Board-R46 Power Supply Unit, Board HV-P6L (1) Disassembly procedure First, carry out the disassembly procedure up to the point of the Screw 4.3.2 (Cover-Rear, Cover-Main etc.). Board-46F or R46: Disconnect the all connectors. Remove the Board-46F or R46 by removing the five screws.
4.3.7 Printer Unit Section [Base Frame Unit] LED head Flat cable assy Pressure roller (B) (Back up roller) Heat assy Paper guide (R) Papr guide (L) Resistration roller Transfer Hopper Paper Idle gear heat roller holder spring Side plate M Tension plate Stopper spring...
4.3.8 Transfer Roller (1) Disassembly procedure Open the cover assembly-top by rais- ing and remove the ID unit. Remove the right claw. Then, dismount transfer roller, two registration bearing, and gear T. Registration bearing Transfer roller Gear T Registration bearing Label (2) Reassembly procedure Reverse the disassembly procedures.
4.3.9 High-Voltage Power Supply Unit (HV-P2H) (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover-Rear and Cover-MAIN). Remove three screws 1 then remove Cover- HV and draw out high-voltage power supply board (HV-P2H). Disconnect all the cables 3 and 4 from high- voltage power supply board (HV-P2H) and dis- mount high-voltage power supply board.
4.3.10 Holder Assembly (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover- Rear and Cover-MAIN). Dismount the Bracket-Package. Dismount the Holder-Paper. Unlock and dismount the Guide- Paper (L) and Guide Paper (R). Remove the claw and dismount Spring-Holder.
4.3.11 Plate-Side M and Gear-Idle (1) Disassembly procedure Perform parts replacement while making the base frame assembly stand so that Plate-Side M will face upward. First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover- Rear and Cover-MAIN). Remove two screws 1 and two claws, then dismount Plate-Side M.
4.3.12 Registration Roller (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover- Rear and Cover-MAIN). Move registration roller to the right and dismount it by lifting. (Two regis- Registration roller tration bearings also come off at the same time.
4.3.13 Drive Shaft E (Eject) and Eject Roller (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover-Rear and Cover-MAIN). Remove two screws 1 from Cover Heat Assembly (section 4.3.14), lift the heat assay, and dismount idle gear E (A) and idle gear E (B).
4.3.14 Heat Assembly This section explains how to dismount the heat assembly and parts in the assembly. (1) Disassembly procedure Screw 1 < Dismounting the heat assembly> First, carry out procedure up to the Heat assembly point of the 4.3.2 (ID Unit, Cover- Screw 1 Rear and Cover-MAIN).
4.3.15 Pressure Roller B (Back Up Roller) (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover-Rear and Cover-MAIN). Dismount the high-voltage power sup- ply board. (See Section 4.3.9) Bearing BU Dismount heat assembly. (See section 4.3.14) Dismount the engagement with the Pressure roller B...
4.3.16 Hopping Shaft Assembly (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover-Rear and Cover-MAIN). Dismount the high-voltage power sup- ply board. (See Section 4.3.9) Dismount the paper holder assembly. Knock pin (See Section 4.3.10) Dismount the sheet guide.
4.3.17 Paper Sensor E, Paper Sensor Exit and Toner Sensor Assembly (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover-Rear and Cover-MAIN). Dismount the high-voltage power sup- ply board. (See Section 4.3.9) Dismount the paper holder assembly.
4.3.18 Printer Unit (1) Disassembly procedure First, carry out procedure up to the point of the 4.3.2 (ID Unit, Cover-Rear and Cover- Main). Remove Bracket-Package with three screws, then disconnect Cable-Flat from connector on 46F or R46-Board (M-CNT). Pull out the Holder-Assy. Dismount the high-voltage power supply board.
ADJUSTMENTS Setting of LED Print Head Drive Time • Adjustment point: Technical Function No. 26. * To bring the LCD up to Technical Function, press SELECT FUNCTION key once, COPY key twice and "2" key (In case of no message in memory). Note: When the rank marking of the replaced LED print head (new part) is the same as that of the used LED print head (old part), you do not always have to set the LED print head drive time.
5.2.1 Confirmation Items The clock frequency and power voltage of the machine are not possible to adjust in the field. However, their measurement procedures are described here for confirmation of clock frequency and each voltage. Clock Frequency • Measurement point: 46F board;...
5.2.2 Measurement Trun the AC power OFF. Carry out the disassembly procedure up to Cover assembly-top, Frame assembly-scanner, and Unit-printer. (Refer to the Mechanical Disassembly and Reassembly in Chapter 4.) Connect extension cables to the 46F board. Connect the frequency counter (for clock frequency), digital voltmeter (for power voltage) and Oscilloscope (for SIG signal).
CLEANING AND MAINTENANCE Replacement of Consumable The user (or service personnel) is required to replace the following items as consumable parts. (1) User side Expected Use Before Reference Item No. Part name Replacement in Figure 6.1 Toner Cartrige 1,875 sheets/4% duty (ITU-T document sample No.1) (For the second or later cartridge to a new I/D Unit)
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(3) Others Table 6.1 Reliability Item Specifications Document feeder Jam occurrence and misfeeds in the automatic document feeder will be less than one in 500 operations for all specified documents. Recording paper Jam occurrence in the automatic paper feeder will be less than feeder one in 1,500 operations and misfeeds will be less than one in 500 operations for all specified recording paper.
Routine Inspection Basically, the routine inspection of following items is performed about half-yearly (or every one year) after the machine is installed. The description of routine inspection is shown in Table 6.2. Table 6.2 Routine Inspection Expected Use Before Reference Item No. Part name Replacement in Fig.6.2...
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(5) LED head (4) Separation rubber (2) Roller - ADF Paper exit ID unit (1) Roller - Scan Document exit (3) Image sensor (6) Printer block Figure 6.2 Parts of Routine Inspection 185 / 41309401TH Rev.4...
Printer Counter Display/Clear Note: The fonts displayed on the LCD operation panel may differ from the fonts written this manual. Purpose A user can clear the image drum unit and check some of the counters (such as the print counter, scan counter) by using the ← key or → key. 2-1.
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2-2. Procedure The following shows the case when the service bit has been set OFF & TONER COUNT CLEAR = ON. Operations: The display shows: 1 4 : 1 4 F A X To bring the LCD up to the desired message, press SELECT FUNCTION key once and Press FUNCTION key.
Printer Counter Display/Clear Purpose The service personnel can clear and check the following data: • Image Drum • Toner • Image Drum (Total) • Print • Scan Procedure The following shows the case when the service bit has been set ON. Operations: The display shows: To bring the LCD up to the desired message,...
Self-diagnosis Test Purpose To check ROMs, RAMs and printing function. Procedure (in Case of not G4 Boad) Operations: The display shows: To bring the LCD up to the desired message, TECH. PROGRAMMING press SELECT FUNCTION key once and COPY YES(←/1-5) NO(→) key twice in the standby mode.
• Image processor LSI RAM check • Setting DEFAULT TYPE and reading clock at self diagnosis execution. The following printing differs depending on the machine type of OKIFAX4550/OKIOFFICE87 and on the condition of option provided or not. “4M” is printed for OKIFAX4550 and “6M” for OKIOFFICE87.
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LANGUAGE VERSION aaaa HASH hhhh DEFAULT VERSION aaaa HASH hhhh RAM1 RAM2 DEFAULT TYPE 03/03/2000 12:00 DEVICE ID MFG:OKI DATA CORP; MDL:FX-046FAX; DES:OKI FX-046FAX; OPT-RAM ISDN BOARD CPU-ROM VERSION aaaa HASH hhhh CPU-RAM PROGRAM VERSION aaaa HASH hhhh DPRAM Figure 6.3 Self-diagnosis Data...
Sensor Calibration Test Purpose To adjust the linearity of output levels of contact image sensor. Operations: The display shows: To bring the LCD up to the desired message, TECH. PROGRAMMING press SELECT FUNCTION key once and COPY ← → YES( /1-5) key twice in the standby mode.
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Operations: The display shows: Continued from the previous page Enter "2". 2:SENSOR CALIBRATION ← → YES( /1-8) ← ← Press key. 2:SENSOR CALIBRATION End of prefeed PLEASE SET DOCUMENT Set white document. Load document(s). For adjustment of levels, use white plain bond paper(s) of NA Letter or A4 2:SENSOR CALIBRAION size.
LEDs Test Purpose To check all LEDs on operation panel by lighting. Procedure Operations: The display shows: To bring the LCD up to the desired message, TECH. PROGRAMMING ? press SELECT FUNCTION key once and COPY ← → YES( /1-5) key twice in the standby mode.
Tone Send Test Purpose To send the G3 tonal frequencies to the line. Procedure Operations: The display shows: To bring the LCD up to the desired message, 1:SELF DIAGNOSIS press SELECT FUNCTION key once, COPY ← → YES( /1-8) ← key twice and key twice.
6.10 High-speed Modem Send Test Purpose To check the telephone line quality in combination with a remote station programmed to the high-speed modem receive test mode. Procedure Operations: The display shows: To bring the LCD up to the desired message, 1:SELF DIAGNOSIS press SELECT FUNCTION key once, COPY ←...
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TX Side RX Side 5:MODEM SEND TEST 6:MODEM REC TEST ← → YES( /1-8) ← → YES( /1-8) ← ← Press key. Press key. CML relay operates. CML relay operates. The display shows: 5:MODEM SEND TEST " Training MODEM rate The display shows: (e.g.
6.11 High-speed Modem Receive Test Purpose To check the telephone line quality in combination with a remote station programmed to the high-speed modem send test mode. Procedure Operations: The display shows: To bring the LCD up to the desired message, 1:SELF DIAGNOSIS press SELECT FUNCTION key once, COPY ←...
6.12 MF Send Test Purpose To send the multi-frequencies of tone dialling to the line. Procedure Operations: The display shows: To bring the LCD up to the desired message, 1:SELF DIAGNOSIS press SELECT FUNCTION key once, COPY ← → YES( /1-8) ←...
6.13 Tone (TEL/FAX) Purpose To check the pseudo-ring back tone of TEL/FAX automatic switching. Procedure Operations: The display shows: To bring the LCD up to the desired message, 1:SELF DIAGNOSIS press SELECT FUNCTION key once, COPY ← → YES( /1-8) ←...
6.14 Protocol Dump Data Printing Purpose To analyze the transmitted/received G3 protocol signals. Procedure • Manual print-out of the last communication. (a) Manual print-out Operations: The display shows: 14:14 FAX Press SELECT FUNCTION key, provided FUNCTION (Standby) that the service bit is ON. SELECT FUNCTION (OT) MEMORY AVAIL.=100% Press one-touch key No.6...
6.14.1 G3 Protocol Dump Purpose: To allow the serviceman to obtain a list of protocol signals transferred between the transmitter and receiver. Print conditions: • Modem trace information for each TX/RX is printed. (Informeation for RX is added on 2nd page.) •...
6.14.2 Analysis from the data The printed out data permits to analyze G3 facsimile communication protocol signals between two facsimile machines. Figure 6.5 (2/2) shows the result of an analysis on the printed data referring to Figure 6.5 (1/2) (Protocol dump data). (Transmitter) (Receiver) Dialling...
6.14.3 FCF (Facsimile Control Field) conversion table Table 6.2 shows all FCF signals which are needed to analyze the printed out protocol dump data. Some signals have two different hexadecimal codes in accordance with the calling party or called party. Table 6.2 FCF Signals Conversion Table Abbreviation Hex.
6.14.4 G4 Protocol Dump Purpose: To allow the serviceman to obtain a list of protocol signals transmitter and receiver. Method: The report will be manually printed out for maintenance purpose. If it is G4, the G4 communication protocol dump is printed out. 1.
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Protocol Dump The printing image is as follows: PROTOCOL DUMP P1 08/25/2000 19:00 ID=OKI TAKASAKI DATA TIME S,R-TIME DISTANT STATION ID MODE PAGES RESULT 04/19 14:49 00’07" OKI SHIBAURA(6412) TX-G4 0000 Dch. SETUP CONN-ACK +Bch+ DISC REL-C STATUS SETUP-ACK CONN +Bch+ Bch.
6.15 System Reset Purpose To clear or initialize the following data: (a) Location data (b) Configuration data (default) Procedure Operations: The display shows: Press SELECT FUNCTION key, COPY key twice. TECH. PROGRAMMING (In case of no message in the memory) ←...
6.16 Service Codes The service code can be printed on Activity Report to recognize the result of each communication. The activity report indicates the code ”0000", should a communication terminates on normal status as a service code. The activity report indicates one of the codes of “90XX”, should a communication terminates on abnormal status, as an error code.
6.16.1 G3 Service Code List Table 6.3 (1/3) Service Codes List Code Description 0000 Successful end of communication. 1080 STOP key has been pressed while calling a remote fax. 10A2 Busy tone detected. 14C0 Dial tone not detected. 14C1 Line current not detected. 14C2 Calling-and-waiting for line connection time out.
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Table 6.3 (2/3) Service Codes List Code Description 29C1 In closed Network setting, TSI/CSI is either not received or, if received, it is not autho- rized one. 29E0 Contents of CM/JM are faulty at receive side. 29E1 Phase 2 time out at receive side. 29E2 Phase 3 time out at receive side.
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Table 6.3 (3/3) Service Codes List Code Description 9083 T3 time out. 9084 No recording paper. 9087 Document jam. 9088 60-minute or 70-minute time out. 9089 Document length has exceeded its maximum limit. 908E Recording paper jam. 9090 Received DCN. 909D Telephone number to be called to the Fax2Net is the wrong number.
6.16.2 G4 Service Code Lists Table 6.4 (1/3) G4 Service Code Lists Alarm Result Remarks Classification Code Description Dch layer 2 ISDN board error BB02 LSI NG BB05 TEI release by network BB06 TEI verification procedure failure Dch layer 3 BA01 Unallocated (unassigned) number BA02...
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Table 6.4 (2/3) G4 Service COde Lists Classification Code Description Alarm Result Remarks BC02 N2 times time out Bch layer 2 FRMR reception BC03 BC04 FRMR transmission The other party link disconnection BC05 BC08 T3 time out SABME wait time out BD01 B201 The other party terminal busy...
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Table 6.4 (3/3) G4 Service COde Lists Classification Description Alarm Result Remarks Code B901 Command response reception error Bch layer 5 B902 Non-implicit command response received B903 Lack of essential parameter B904 Invalid parameter reception B905 Invalid parameter value reception B906 Window size over reception B907...
TROUBLESHOOTING AND REPAIR FOR OKIFAX4550/OKIOFFICE87 220 / 41309401TH Rev.4...
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This chapter contains: (a) Troubleshooting flow charts related to general operations (b) Troubleshooting flow charts by test operations Troubleshooting flow charts placing an emphasis on mechanical portions Section Name of Flow Chart Page Overall troubleshooting flow chart No LCD operation ALARM LED on Printing test failure No local copy...
Go to 7.6 (Auto dial failure). Transmission problem? Go to 7.7 (Transmission problem). Auto reception OK? Go to 7.8 (Auto reception failure). Reception problem? Go to 7.9 (Reception problem). Note: 46F/R46 board for OKIFAX4550/ OKIOFFICE87 is shown as MCNT. Verify symptom. 222 / 41309401TH Rev.4...
Replace OPE UNIT (O4W). Solved? Replace MCNT Solved? Check MCNT board and the cable between MCNT and OPE boards. Return to section 7.1 Return to section 7.1 Note: 46F/R46 board for OKIFAX4550/OKIOFFICE87 is shown as MCNT. 223 / 41309401TH Rev.4...
Alarm LED On Start Checking Points: Communication error? "COVER OPEN" on LCD? Press STOP key. "PRINTER ALARM i" alarm? ALARM LED goes off? "PAPER JAM" alarm? "NO PAPER" alarm? Go to 7.22 (Printer unit). "TONER LOW" alarm? Return to section 7.1 1.
No Local Copy Checking Points: Start Printing function of Go to 7.4 (Printing test failure). self-diagnosis is OK? Load a document. The document is fed by any length? 1. Check PC1. 2. Replace MCNT board. 3. Check the mechanical portion. The document is fed by (Scan motor, etc.) about 7cm and stops with...
Auto Dial Failure Start Manual dial OK? Can you hear dial tone when lifting up your handset? 1. Check the line cable. 2. Check the exchange. Check pulse dial/tone dial, dial rate, etc. Check closed network. Test other fax machines (Note 1) under the same conditions.
Transmission Problem This section explains how to localize the cause of problems occurred after completion of connection with a remote station. Start Step 1: Set MH ONLY (Technical function No. 12) to ON. Solved? Step 2: Set HIGH-SPEED MODEM RATE (Technical function No.
Auto Reception Failure Start Manual reception OK? Your handset telephone Placed in the auto receive rings when a call arrives? mode? If not, place the 1. Check the handset of fax machine in that mode telephone set. by pressing AUTO REC key. 2.
Reception Problem This section explains how to localize the cause of problems occurred after completion of connection with a remote station. Start Step 1: Set MH ONLY (Technical function No. 12) to ON. Solved? Step 2: Set HIGH-SPEED MODEM RATE (Technical function No.
7.10 Sensor Calibration Test Start Checking Points: Perform SENSOR CALI- BRATION. (See 6.6) "SCANNING ERROR" appears on LCD while adjusting for level. Check that white plain bond paper of NA Letter or A4 size is loaded on the feeder. Abnormal feeding is observed during No document SCANNING CHECK?
7.11 LED Test Start Checking Points: Perform LED TEST. (See 6.8) All LEDs light? No (No LED lights) Any LED does not light? Yes (One LED or some LEDs light.) 1. Check the connection cable. 2. Check the oscillator OSC (OPE). 3.
7.12 Tone Send Test Start Note 1: The tonal frequency (2100 Hz) will be sequentially sent for 5 seconds on the line terminals L1 and L2. Perform TONE SEND TEST. (See 6.9.) Connect leads of frequency counter (or oscilloscope) across the line terminals L1 and L2.
7.13 High-speed Modem Test Start Connect oscilloscope probe across the line terminals L1 and L2 Perform H-MODEM SEND TEST for the transmitter and H-MODEM REC TEST for the receiver. (See Fig. 6.9.1) Which mode, TX or RX? Modem’s signal appears across L1 and L2? TX End Modem’s signal appears...
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RX (Receiver) The error counter of LCD stops counting up? RX End Receive signal appears across L1 and L2? Check the line. Receive signal appears across CN3-48 (R) and CN3-14 (GND) of NCU board? Replace MCNT Board. Signal route: <46F> CN10-A2 (R)→IC12-3→...
7.14 MF Send Test Start Connect oscilloscope probe across the line terminals L1 and L2. Perform MF SEND TEST. (See 6.12.) MF signal appears across L1 and L2? MF signal appears across CN10-A4 (S) and CN10-B1 (0V) of MCNT Board? Replace MCNT Board.
7.15 Tone (TEL/FAX) Send Test Start Note: The pseudo-ring back tone is sent to the Connect oscilloscope probe telephone line for TEL/FAX automatic across the line terminals switching. L1 and L2. Perform TONE (TEL/FAX) SEND TEST. (See 6.13.) Pseudo-Ring Back Tone signal appears across L1 and L2? MF signal appears across CN10-A4...
7.16 No Acoustic Line Monitor There are two source routes of acoustic line monitor: General communication signal DP pulse signal Start MONITOR VOLUME (Function program No. 06) Set MONITOR VOLUME has been set to to LOW or HIGH. LOW or HIGH? Yes (OFF) MONITOR CONTROL (Technical function No.
7.17 Power Supply Unit (A) Low-voltage Selection Replace the Power Supply Unit when output voltage written on the item A3 in the Appendix A is not normal. (B) High-voltage Selection T.B.D. (To be determined) 7.18 No Document Feeding Note: This section places an emphasis on troubleshooting of mechanical portions. Therefore, it is recommended to replace the MCNT Board first and, then if not solved, follow this flow chart.
7.19 Multiple Document Feeding Definition: Multiple document feeding. Multiple documents are not separated and they are fed in the same one feeding operation. Start The leading edges of Align them. the documents are aligned? The separation rubber Clean it. is dirty? After pushing the Check the ADF spring, separation rubber assembly,...
7.20 Document Skew Start 1. Set the guides to meet the Are the document guides set to meet the document width. document width? 2. Load the documents Are the documents straightly loaded along straight along the guides. the guides? The documents have Load documents by meeting the same width? the same width.
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Is separation rubber dirty? Clean it. Are pinch rollers pressed normally by the Set them properly. springs? (After pushing them by fingers, do they return back to the original positions?) Clean them. Are roller-scan dirty? Are roller-scan Replace it. worn or slippery? Clean it.
7.21 Document Jam Start Note: 46F/R46 board for OKIFAX4550/OKIOFFICE87 are shown as MCNT. Load a document. 1. Check PC1. Is document fed by 2. Replace MCNT Board. any length? 3. Check the mechanical portion. (Scan motor, etc.) See 7.1.18 for further details.
7.22 Printer Unit 7.22.1 Precautions Points to check before correcting image troubles (1) Is the printer being run in proper ambient conditions? (2) Have the supplies (toner) and the routine replacement part (EP unit) been replaced properly? (3) Is the recording paper normal? (4) Has the EP unit been loaded properly? Tips for correcting image troubles (1) Do not touch, or bring foreign matter into contact with the surface of the drum.
7.22.2 Troubleshooting Flow Charts of Printer Unit Overall troubleshooting flow chart: Troubles Troubles indicated Troubleshoot Perform detailed by LCD message according to the LCD troubleshooting with message trouble list. one of troubleshooting See Table 7.22.1 flow chart 1 to 6. Image troubles Troubleshoot Perform trouble-...
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Troubleshooting flow chart 1: Cover (Cover-top) is open. ** COVER OPEN ** Close the cover Solved? Is the cover open switch Connect the cover open connector out of position? switch connector. Return to section 7.1 See ACTION 2. 246 / 41309401TH Rev.4...
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Troubleshooting flow chart 2: Warning message to replace ID unit because of its life. ** CHANGE DRUM SOON ** Turn on power again. Does the CHANGE See ACTION 3. DRUM SOON message remain on display? Is the MCNT Board Mount it properly. mounted properly? See ACTION 4.
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Troubleshooting flow chart 3: Engine controller error (ROM/RAM error) ** PRINTER ALARM 2 ** Turn on power again. Does the PRINTER See ACTION 5. ALARM 2 message remain on display? See ACTION 6. 248 / 41309401TH Rev.4...
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Troubleshooting flow chart 4: Fuser unit thermal error ** PRINTER ALARM 4 ** Turn on power again. Is the PRINTER ALARM 4 message See ACTION 7. displayed with a delay? About 60 seconds later See ACTION 6. Turn on power again. Is the fuser unit heater See ACTION 7.
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Troubleshooting flow chart 5: Recording paper feed jam, transport jam, ejection jam, recording size error PAPER OUT/JAM REPLACE PAPER Is the paper tray Load it properly. loaded properly? Is the paper of Replace with paper of the specified size? specified size. Does the same error Remove the jammed paper.
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Troubleshooting flow chart 6: No recording paper tray or not recording paper No recording paper on the tray PAPER OUT/JAM REPLACE PAPER Has the paper Load it. tray been loaded? Is recording paper Load recording paper. out? See ACTION 14. 251 / 41309401TH Rev.4...
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Table 7.22.2 Action Items (Printer Unit-LCD Message) ACTION ACTION Check MCNT Board. Check connection between the PWU and the fuser assembly,heater, ther- Check P2H/P6L Board cover open mostat. switch, cover open switch connec- tion. Check PWU. Check MCNT Board. Check Sensor-E, magnet-H, hopping Return to Section 7.1.
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Table 7.22.3 Image Troubles Reference Troubleshooting Abnormal Symptom Figure Flow Chart No. Images are light or blurred as a whole. Fig. A The blank background is smeared. Fig. B Blank paper is output. Fig. C Black belts or black stripes in vertical direction. Fig.
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Troubleshooting flow chart 7: Images are light or blurred as a whole. Is toner low? Supply toner. Use paper of OKI Is paper of OKI specified grade. specified grade? Are fingerprints or dirts adhering or moisture- Replace the paper. absorbing to the paper? Is the lens surface of the Clean the lens.
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Troubleshooting flow chart 8: The blank background is smeared. Has the Image Drum been Close and wait for about exposed to external light? 30 minutes. Is the heat roller of the Clean it. fuser unit dirty? Is the contact of the cleaning roller Adjust the contact of the of the EP unit in contact cleaning roller to contact...
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Troubleshooting flow chart 10: Black belts or stripes in the vertical direction. Replace the EP Unit Solved? End. Replace the LED print head or Power Supply Unit. 256 / 41309401TH Rev.4...
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Troubleshooting flow chart 11: Periodic abnormal printing Developing roller (inside EP unit) 1.44" (36.6 mm) failure. period? Replace or clean the EP unit. EP drum (inside EP unit) 1.98" (50.3 mm) failure. period? Replace the EP unit. Tonner supply roller (inside the EP 2.63"...
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Troubleshooting flow chart 12: Some parts not printed Is the print paper folded, Replace the paper. bent, or scratched? Is the transfer roller Clean it. dirty? Check EP unit or Power Supply Unit. 258 / 41309401TH Rev.4...
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Troubleshooting flow chart 13: White belts or streakes in the vertical direction Is the lens surface of the Clean the lens. LED print head dirty? Is the contact plate of the transfer Make proper contact of the roller in contact with the contact contact plate with the contact assembly properly? assembly.
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Troubleshooting flow chart 14: Poor fusing Is the paper OKI Use paper of OKI specified grade. specified grade? Is the (Bias) Repair the pressure roller spring normal? spring. (Tension: 2.5 kg) Is the contact of the fuser Adujust the contact of the...
DIPSWITCHS SETTING TABLES FOR EN9/INU NCU BOARDS (Setting as of Jan. 25, 2000) Each country's hardware parameters comparison table. Dip-switch EC countries France Remarks (except UK and France) Shunt wire Ring detection Ring detection Not used 261 / 41309401TH Rev.4...
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EC Countries (except UK and France) (41143501) This section gives the following instruction. • DIP switch setting • Screw tightening position (a black dot) For detail, see the figure below. 411435 LINE 262 / 41309401TH Rev.4...
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UK (41143502) This section gives the following instruction. • DIP switch setting • Screw tightening position (a black dot) For detail, see the figure below. 411435 LINE 263 / 41309401TH Rev.4...
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France (41143503) This section gives the following instruction. • DIP switch setting • Screw tightening position (a black dot) For detail, see the figure below. 411435 LINE 264 / 41309401TH Rev.4...
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(Setting as of Jan. 25, 2000) Each country's hardware parameters comparison table. Singapore Poland Dip-switch Australia Remarks China (non-EC Canada Zealand Malaysia countries) Ring Impedance Ring Impedance 265 / 41309401TH Rev.4...
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US, Canada (41143901) This section gives the following instruction. • Screw tightening position (a black dot) For detail, see the figure below. 411439 LINE * Connector for short-plug and SW1 are not mounted. 266 / 41309401TH Rev.4...
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Australia (41143902) This section gives the following instruction. • DIP switch setting • Short-plug location • Screw tightening position (a black dot) For detail, see the figure below. 411439 LINE 267 / 41309401TH Rev.4...
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New Zealand (41143903) This section gives the following instruction. • DIP switch setting • Short-plug location • Screw tightening position (a black dot) For detail, see the figure below. 411439 LINE 268 / 41309401TH Rev.4...
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Singapore, China, Malaysia (41143904) This section gives the following instruction. • DIP switch setting • Short-plug location • Screw tightening position (a black dot) For detail, see the figure below. 411439 LINE 269 / 41309401TH Rev.4...
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Poland (non-EC countries) (41143905) This section gives the following instruction. • DIP switch setting • Short-plug location • Screw tightening position (a black dot) For detail, see the figure below. 411439 LINE 270 / 41309401TH Rev.4...
H.V. Board P6L Board-PSU Plate Assy.-Base Figure A.1 Unit Configuration (Modifying) (1) Main control board (46F: OKIFAX4550, R46: OKIOFFICE87) (2) Network control unit (NCU) (3) Power supply unit (MPW1446 (230V), MPW1546 (120V) (4) Operation panel board (04W) (5) High Voltage Board (P2H)
The unit configuration is as follows: Meaning of abbreviations used in Block Diagram : Analog-to-digital converter : Amplifier : Battery : Connector number i : Central processing unit D-MOTOR : Drum motor : Motor drive DRAM : Dynamic random-access memory IEXSEED300 : Image proccessing gate array LC821033...
Function of Each Unit The section describes the principal functions of the individual units of the OKIFAX4550/OKIOFFICE87 electrical sections. Figure A.2/A.3 shows the pertinent block diagram. (1) 46F board (OKIFAX4550) • IOGA4 (Input/output gate array 4) 1/4: CPU SH7034 Basic processor CPU periheral functions •...
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(2) R46 board (OKIOFFICE87) • CPU SH7034 Basic processor CPU periheral functions • IOGA6 (Input/output gate array 6) 1/3, 2/3, 3/3 Scanned data DMA control Printing control Peripheral input/output control • Flash memory (Instead of EP-ROM and SRAM) Memory storage for program code Memory storage for user/service setting data •...
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(5) Power supply unit: MPW1446 (230V)/MPW1546 (120V), P6L, P2H • Conversion of main alternating current to the following direct currents: +5V DC power supply -8V DC power supply +24 V DC power supply +30 V DC power supply • Supplying of main alternating current to fuser unit •...
Explanation of Signal Flow OKIFAX4550 (1) Copy Mode Figure A.4 (1/13) shows the picture signal route in local copy mode One-line picture data is transferred to A/D converter (analog/digital) via operational amplifier from the scanning unit (CIS: contact image sensor) as an analog data. After conversion from analog data to 6-bit digital data by A/D converter, the picture data is sent to IEXSEED (image processing LSI) and SRAM.
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(6) PC-FAX TX Figure A.4 (6/13) shows the signal route in PC-FAX TX mode. The data encoded and HDLC framed in PC is input to IOGA4 via the parallel I/F to be transferred to the DRAM under the control of DMA. The stored encoded data is output from DRAM to the MODEM under the control of IOGA4 (CPU).
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(13) G4 RX mode Figure A.4 (13/13) shows the signal route of this mode. The signal received from an ISDN line is transferred to the dual-port RAM (DPRAM) by the control of the CPU via the ISDN driver and ISDN controller of the G4N board. Notified of the existence of received G4 data by interruption, the IOGA4 (CPU) of the 46F board transfers the data from the DPRAM to the DRAM.
OKIOFFICE87 (1) Copy Mode Figure A.5 (1/13) shows the picture signal route in local copy mode One-line picture data is transferred to operational amplifier from the scanning unit (CIS: contact image sensor) as an analog data. The picture data is sent to LC821033 (image processing LSI). Here, the picture data undergoes various kinds of picture processings (LC821033), converted to two-level binary data (black and white) and then sent to IOGA6 (scanning control).
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(6) PC-FAX TX Figure A.5 (6/13) shows the signal route in PC-FAX TX mode. The data encoded and HDLC framed in PC is input to LVC161284 and IOGA6 via the parallel I/F to be transferred to the DRAM under the control of DMA. The stored encoded data is output from DRAM to the MODEM under the control of CPU.
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(12) G4 TX mode Figure A.5 (12/13) shows the signal route of this mode. The signal route from the image sensor to the LC821033, DRAM, IOGA6, CPU, and DRAM is the same as that of the item (2), “G3 send mode”. The read one-line image data is stored in the DRAM, encoded by the CPU and again stored in the DRAM.
46F Circuit Diagram (OKIFAX4550) 46F Circuit Diagram (1/13) Block diagram 46F-PCB circuit diagram (1/13) shown the consists of an input/output gate array IC2 (IOGA4), crystal oscillator circuit and reset signal generator. Figure A.6 shown the block diagram of IC2 (IOGA4) and the peripheral circuits.
46F Circuit Diagram (2/13) Block diagram 46F-PCB circuit diagram (2/13) shown the consists of Flash memory, DRAM, Real time clock IC and Back up battery circuit. Figure A.7 shows the block diagram of Flash memory, DRAM and Real time clock. Function Flash memory (FLS) Flash memory (electrically erasable and programmable device) is used for the main...
46F Circuit Diagram (3/13) Block diagram 46F-PCB circuit diagram (3/13) shown the consists of IC11 (analog switch IC) and IC5 (amplifier) generates the following audio monitor. • Line monitoring • Buzzer signals Figure A.8 shows the block diagram of audio monitor circuit. Function Line monitoring Send and receive signals are input from the transformer on the NCU board to this circuit...
46F Circuit Diagram (4/13) Block diagram 46F-PCB circuit diagram (4/13) shown the consists of the following functions: • IC6 (A/D converter) • Connector CN5 that provides an interface between 46F board and CIS (contact image sensor). Figure A.9 (1/3) shows the related signals and block diagram of CIS. Function One-line picture data is read in the sequence from the scanning unit (CIS) as SIG signal (analog data) to A/D converter (analog/digital converter) of IC6.
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1.25 MHz (L: duty 75%) MISP VLED ON: all the time 4 • • • • • • 2592 2.5 msec 1 line Figure A.9 (2/3) Signal timing of CIS (contact image sensor) 800 ns 600 ns PDCK N + 1 N + 2 N + 3 N + 4...
46F Circuit Diagram (6/13) Block diagram 46F-PCB circuit diagram (6/13) shown the consists of connector CN12 that provides an interface between 46F board and LED print head. Figure A.11 (1/2) shows the related signals and block diagram of LED print head. Function Data of 1664 LEDs on the LED print head is loaded into the shift registers by the HCLCK (4MHz or 6.7 MHz) signal.
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HCLCK HLATCH HDATA0 STRB1-N STRB2-N STRB3-N STRB4-N First line printing data sent Second line printing data sent First line printing Figure A.11 (2/2) Normal Mode Printing Timing Chart 317 / 41309401TH Rev.4...
46F Circuit Diagram (7/13) Block diagram 46F-PCB circuit diagram (7/13) shown the consists of the following connectors: • Connector CN10 that provides an interface between 46F board and NCU/G4N board. • Connector CN3 that provides an interface between 46F board and external electro-mechanical conponents (PC1 and PC2).
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CN10 CN3 Receiving Modem sensitivity control Relay driver circuit MUTE PBXE IOGA4 to OPE Hook-up signal detection circuit to OPE Ringing signal detection circuit Figure A.12 (1/4) Interface between 46F Board and NCU Board OPE (04W) KSCAN0 X’tal KSCAN7 CN4 CN1 Key switch matrix TXDOPE...
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Between the MCNT and OPE, serial data is transferred via the SIO incorporated in the CPU. <Communication method> Communication method: Start-stop synchronization Transfer rate: 5832 bps Data length: 8 bits <Data configuration> Status bit: 1 bit Data: 8 bits Even parity: 1 bit (ignored by OPE) Stop bits: Bits 1 and 5...
46F Circuit Diagram (8/13) Block diagram 46F-PCB circuit diagram (8/13) shown the consists of the following functions and connectors: • IC9 (Drum motor driver) • Connector CN13 that provides an interface between 46F board and the drum motor. Figure A.13 shows the related signals of the drum motor. Function Drum motor control This drum motor is driven by the motor driver IC9.
46F Circuit Diagram (9/13) Block diagram 46F-PCB circuit diagram (9/13) shown the consists of the following function and connectors: • IC7 (Send motor driver) • TR512/TR513 (Clutch driver) • Connector CN1 that provides an interface between 46F board and the send motor. •...
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IC16 PHSA PHSB PHSC PHSD Send motor IEXSEED MTP3 drive Send motor MTP2 MTP1 MTP0 +30V (1-2 phase excitation) TR512/TR513 PJON Clutch IOGA4 Clutch Clutch drive Figure A.14 (1/2) Related Signals of Send Motor and Clutch PHSA PHSB PHSC PHSD STD/FINE:t=1.25ms (800pps) EX-FINE:t=2.5ms (400pps) Figure A.14 (2/2) Timing Chart of Send Motor...
3.10 46F Circuit Diagram (10/13) Block diagram 46F-PCB circuit diagram (10/13) shown the consists of the following connectors: • Connector CN11 that provides an interface between 46F board and Bi-Centro I/F. Figure A.15 (1/2) shows the interface between 46F and Bi-Centro I/F. Figure A.15 (2/2) shows the timing chart of Centronics Parallel Interface.
3.11 46F Circuit Diagram (11/13) Block diagram 46F-PCB circuit diagram (11/13) shown the consists of the following connector: • Connector CN6 that provides an interface between 46F board and power supply unit (P2H). • Connector CN7 that provides an interface between 46F board and power supply unit (MPW1446/MPW1546).
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CN6 CN1 CVOPN-N CVOPN-N COVER open switch IOGA4 WRSNS-N Write sensor WRSNS Outlet sensor PSOUT-N PSOUT Inlet sensor PSIN-N PSIN TRSNS-N TNR5N5 Toner end sensor Figure A.16 (1/4) Sensor and Switch Control TONER FULL state 280 ms < t1 < 630 ms TNRSNS-N 2.51 sec.
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Fuser unit temperature control The heater in the fuser unit is controlled by the thermister, IOGA4 keeps the heater roller surface within a prescribed temperature range. The IOGA4 supervises the status of THCHK (A/D converter input section) periodically, turning HEATON signal on and off according to IOGA4 of THCHK status to exercise temperature control.
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High-voltage and medium-voltage control High voltages are activated by IOGA4 and generated by the high-voltage circuit inside the power supply unit. The CH (charge) voltage of about -1.30kV is used for the charge roller. The TR1/TR2 (transfer) voltage of about +3.9kV/-0.75kV is used for the transfer roller. Medium voltages are activated by IOGA4 and generated by the medium-voltage circuit inside the power supply unit.
3.12 46F Circuit Diagram (12/13) Block diagram 46F-PCB circuit diagram (12/13) shown the consists of the IEXSEED300 (image processing LSI) of IC16 and SRAM. Figure A.17 shows the related signals of IEXSEED300. Functions IEXSEED300 is d eveloped LSI for the image processing. IEXSEED300 contains the following functions: •...
3.13 46F Circuit Diagram (13/13) Block diagram 46F-PCB circuit diagram (13/13) shown the consists of the ispLSI2032E-110LT44 (PLD: Programmable Logic Device) of IC22. Figure A.18 shows the related signals of PLD. Functions • chip select decode : V34CS and MUPISCS signals are produced from NMDCS2 and A18 signals.
R46 Circuit Diagram (OKIOFFICE87) R46 Circuit Diagram (1/15, 2/15, 3/15) Block diagram R46-PCB circuit diagram (1/15, 2/15, 3/15) shown the consists of an input/output gate array IC2 (IOGA6), crystal oscillator circuit and reset signal generator. Figure A.19 shown the block diagram of IC2 (IOGA6) and the peripheral circuits. Function IOGA6 is newly developed LSI for scanning, printing control and provided with a built-in CPU.
R46 Circuit Diagram (4/15) Block diagram R46-PCB circuit diagram (4/15) shown the consists of Flash memory, DRAM, Real time clock IC and Back up battery circuit. Figure A.20 shows the block diagram of Flash memory, DRAM and Real time clock. Function Flash memory (FLS1) Flash memory (electrically erasable and programmable device) is used for the main...
R46 Circuit Diagram (5/15) Block diagram R46-PCB circuit diagram (5/15) shown the consists of IC8 (analog switch IC) and IC11 (amplifier) generates the following audio monitor. • Line monitoring • Buzzer signals Figure A.21 shows the block diagram of audio monitor circuit. Function Line monitoring Send and receive signals are input from the transformer on the NCU board to this circuit...
R46 Circuit Diagram (7/15) Block diagram R46-PCB circuit diagram (7/15) shown the consists of connector CN12 that provides an interface between R46 board and LED print head. Figure A.23 (1/2) shows the related signals and block diagram of LED print head. Function Data of 4992 LEDs on the LED print head is loaded into the shift registers by the HCLCK signal.
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HDCLK-P HDDLD-P HDD(3~0)-P HDSTB1-N HDSTB2-N HDSTB3-N HDSTB4-N First line printing data sent Second line printing data sent First line printing Figure A.23 (2/2) Normal Mode Printing Timing Chart 336 / 41309401TH Rev.4...
R46 Circuit Diagram (8/15, 9/15) Block diagram R46-PCB circuit diagram (8/15, 9/15) shown the consists of the following connectors: • Connector CN10 that provides an interface between R46 board and NCU/G4N board. • Connector CN3 that provides an interface between R46 board and external electro-mechanical conponents (PC1 and PC2).
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CN10 CN3 Receiving Modem sensitivity control Relay driver circuit MUTE PBXE IOGA6 to OPE Hook-up signal detection circuit to OPE Ringing signal detection circuit Figure A.24 (1/4) Interface between R46 Board and NCU Board OPE (04W) KSCAN0 X’tal CPU1 KSCAN7 CN4 CN1 Key switch matrix...
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Between the MCNT and OPE, serial data is transferred via the SIO incorporated in the CPU1. <Communication method> Communication method : Start-stop synchronization Transfer rate : 5832 bps Data length : 8 bits <Data configuration> Status bit : 1 bit Data : 8 bits Even parity...
R46 Circuit Diagram (10/15) Block diagram R46-PCB circuit diagram (10/15) shown the consists of the following functions and connectors: • IC9 (Drum motor driver) • Connector CN13 that provides an interface between R46 board and the drum motor. Figure A.25 shows the related signals of the drum motor. Function Drum motor control This drum motor is driven by the motor driver IC9.
R46 Circuit Diagram (11/15) Block diagram R46-PCB circuit diagram (11/15) shown the consists of the following function and connectors: • IC7 (Send motor driver) • TR505/TR506 (Clutch driver) • Connector CN1 that provides an interface between R46 board and the send motor. •...
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MPHA MPHB MPHC MPHD Send motor IOGA6 MPT4 Send motor drive MPT3 MPT2 MPT1 +30V (1-2 phase excitation) CPU1 TR505/TR506 PJON Clutch SH7034 Clutch Clutch drive Figure A.26 (1/2) Related Signals of Send Motor and Clutch MPHA MPHB MPHC MPHD STD/FINE:t=1.25ms (800pps) EX-FINE:t=2.5ms (400pps) Figure A.26 (2/2) Timing Chart of Send Motor...
R46 Circuit Diagram (12/15) Block diagram R46-PCB circuit diagram (12/15) shown the consists of the following connectors. • Connector CN11 that provides an interface R46 board and Bi-Centro I/F. CN11 IC12 3.3V 222, 223, 226~231 DATA8-P PDATA1-P to PDATA8-P DATA1-P 2 to 9 STB-N STB-N...
4.10 R46 Circuit Diagram (13/15) Block diagram R46-PCB circuit diagram (13/15) shown the consists of the following connector: • Connector CN6 that provides an interface between R46 board and power supply unit (P2H). • Connector CN7 that provides an interface between R46 board and power supply unit (MPW1446/MPW1546).
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CN6 CN1 CVOPN-N CVOPN-N COVER open switch IOGA6 WRSNS-N Write sensor WRSNS Outlet sensor PSOUT-N PSOUT Inlet sensor PSIN-N PSIN TRSNS-N TNR5N5 Toner end sensor Figure A.28 (1/4) Sensor and Switch Control TONER FULL state 280 ms < t1 < 630 ms TNRSNS-N 2.51 sec.
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Fuser unit temperature control The heater in the fuser unit is controlled by the thermister, IC2(IOGA6) keeps the heater roller surface within a prescribed temperature range. The CPU1 supervises the status of THCHK (A/D converter input section) periodically, turning HEATON signal on and off according to CPU1 of THCHK status to exercise temperature control.
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High-voltage and medium-voltage control High voltages are activated by IC2(IOGA6) and generated by the high-voltage circuit inside the power supply unit. The CH (charge) voltage of about -1.30kV is used for the charge roller. The TR1/TR2 (transfer) voltage of about +3.9kV/-0.75kV is used for the transfer roller.
4.11 R46 Circuit Diagram (14/15) Block diagram R46-PCB circuit diagram (14/15) shown the consists of the LC821033 (image processing LSI) of IC13. Figure A.29 shows the related signals of LC821033. Functions LC821033 is developed LSI for the image processing. LC821033 contains the following functions: •...
4.12 R46 Circuit Diagram (15/15) Block diagram R46-PCB circuit diagram (15/15) shown the consists of the following functions: • Connector CN5 that provides an interface between R46 board and CIS (contact image sensor). Figure A.30 (1/2) shows the related signals and block diagram of CIS. Function One-line picture data is read in the sequence from the scanning unit (CIS) as SIG signal (analog data) to IC13.
OPE (04W) Circuit Diagram Block diagram Figure A.31 shows a block diagram of OPE (04W). The 04W (operation unit) circuit consists of the following blocks: IC1 (one chip MOS-CPU) • Output ports Setting LEDs on and off: 8 ports Specifies the row during key switch matrix scanning: 8 ports •...
Power Supply Unit MPW1446 (230V)/MPW1546 (120V) Circuit Diagram IMPORTANT: Oki Data Corporation recommends that maintenance of the Power supply unit (MPW1446 (230V)/ MPW1546 (120V)) be performed by replacement of a unit, not by replacement of components. Therefore, circuit descriptions in this section are for reference.
P2H Circuit Diagram This circuit consists of photo-sensors and high voltage generation unit. Note: If the high-voltage unit inside the P2H circuit board is replaced, the output voltage and current output from the terminals must be checked and adjusted. This section does not describe the checking and adjustment methods, however.
High-voltage section 7.1.1 Functional overview The high-voltage outputs consist of TR1 (3.9 kV), TR2 (-0.75 kV), DB1 (+265 V), DB2 (-265 V), SB2 (-550V), CB1 (+400 V), CB2 (-1.35 kV) and CH (-1.30 kV) and are obtained as follows. The control signal obtained from IOGA4 of R46 board is applied to High-voltage power supply circuit.
Photosensors The photosensors mounted on this circuit board/sensor board supervise the paper running state during printing. These four photosensors are used in this printer as listed below. All of their outputs enter 46F/R46 board. PS1 (photosensor 1): TNRSNS Detects the lack of the toner. PS2 (photosensor 2): PSIN Detects the leading part of the paper and gives the supervision timing for switching from hopping operation to feeding operation.
EN9 and INU Circuit Diagram The NCU board is selected from EN9 and INU because it differs depending on country’s specifica- tions. • EN9 UK, Flance, EC countries • INU US, Canada, Australia, New Zealand, Singapore, China, Malaysia, non-EC countries (Poland etc.) Block diagram •...
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Explanation on CN3 Terminals Terminal Explanation pin No. name Detection of off-hook of terminal connected to TEL-1 or TEL-2. 0 - 5 V signal output synchronized with the ringing signal frequency Relay control signal for special service code detection at parallel pickup or remote reception 13, 14, Ground 41, 42...
EN9 circuit diagram Lightning arresters (AR1, 2) The nominal operating voltage is 500 V. When connecting the ground of the arrestor to the chassis, tighten ARG on the PCB with a screw. At this time, the PCB is grounded through the power cable. The TB1 arrestor ground terminal can also be used to connect to the earth directly.
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Off-hook detectors (IC8, RL7) These circuits detect the off-hook state of the telephone connected to the TEL1, TEL2, through LINE terminals. IC8 uses a high detection sensitivity than of RL7. In TEL/FAX mode, the higher sensitive IC8 is used to detect the off-hook state of the telephone while the main equipment is hunting a line.
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RL7 F OFF-HOOK Detector Ring Detector Shunt Impedance matching NT MUTE LINE , AR FICC arresters to Modem Receiving Q502, Q503 Q1 4 sensitivity Constant current current MUTE...
INU circuit diagram Lightning arresters (AR1, 2) The nominal operating voltage is 500 V. When connecting the ground of the arrestor to the chassis, tighten ARG on the PCB with a screw. At this time, the PCB is grounded through the power cable. The TB1 arrestor ground terminal can also be used to connect to the earth directly.
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Off-hook detectors (IC5) These circuits detect the off-hook state of the telephone connected to the TEL. Impedance switches (CN15 to CN35) These circuits set the impedance according to the line requirement. 220: 220 ohm + 820 ohm//115 nF (CN15) 370: 370 ohm + 620 ohm//310 nF (CN35) 600: 600 ohm (CN25) Ring impedance switches (S1-1, 2) These switches set the ring impedance according to the line requirement.
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OFF-HOOK Detector Ring Detector Impedance C5 R505 matching TEL CN1 CN15 ~ CN35 MUTE LINE , AR arresters to Modem Receiving sensitivity MUTE circuit...
Outline of Parallel Pick Up Parallel pick up is a function that controls a fax (to make a fax in receive mode) from a telephone set connected parallel to a fax. The two possible parallel connections of telephone sets A and B are shown in the figure.
G4N-PCB This PCB board is optionally available. Using this board allows the system to be ready for the G4 protocol. The block diagram of this board is shown on the next page. This board is connected to the MCNT board with a 50-pin connector (CN1). 23 pins of this connector are signals lines dedicated to the G4N board, and the remaining 27 pins are signal lines shared with the NCU board.
APPENDIX B DESCRIPTIONS OF PRINT OPERATION Electro-Photographic Processor The electro-photographic processor prints out the image data to be sent from the main control board on sheets of paper. Figure B-1 shows the layout drawing of the electro-photographic processor. (1) Image drum unit The image drum unit makes a toner adhere to the formed electrostatic latent image with static electricity.
Electro-Photographic Process (1) Electro-photographic process The electro-photographic process is outlined below. Charging Main Motor Electromagnetic Clutch Hopping Roller Regist Gear Drum Gear Operation Normal rotation Non-rotation Non-rotation Rotation Warm-up Rotation Rotation Rotation Hopping Reverse rotation Non-rotation Rotation Rotation Prinitng The surface of the OPC drum is charged negatively and uniformly by applying the DC voltage to the CH roller.
Explanation of Each Process Operation (1) Hopping As shown in the figure below, the clutch for hopping is turned on/off according to current ON/ OFF to a coil. When the clutch is OFF Spring for resetting Hopping gear Clutch plate Coil Magnetic substance plate...
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(2) Printing and warm-up At warm-up Triple gear Transfer gear Resist gear Idle gear Planetary gear a" a’ Hopping gear Gear A Pulse motor (main) Rotate the pulse motor (main) in the a direction. The planetary gear rotates in the a’ direc- tion, dislocating its position in the a”...
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(3) Charging Charging is performed by applying DC voltage to the charge roller that is in contact with the surface of the OPC drum. High- voltage Charge roller power supply Charge roller (4) Exposure Light emitted from the LED head irradiates the negatively charged surface of the OPC drum. The surface potential of the irradiated surface attenuates to form the electrostatic latent image corresponding to the image signal.
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(5) Development The electrostatic latent image on the surface of the OPC drum is changed to a visible toner image by applying a toner to it. Development is performed in the contact part between the OPC drum and developing roller. The sponge roller negatively charges a toner and applies it to the developing roller.
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(6) Transfer The transfer roller is composed of conductive sponge material. This roller is set so that the surface of the OPC drum and sheets of paper will adhere closely. A sheet of paper is placed on the surface of the OPC drum and the positive charge opposite to the negative charge of a toner is applied from the reverse side by the transfer roller.
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(7) Fusing The transferred unfused toner image is fused to a sheet of paper because heat and pressure are applied when it passes between the heat roller and back-up roller. The Teflon-coated heat roller contains a 400 W heater (Halogen lamp) that heats the heat roller.
Paper Jam Detection The OKIFAX4550/OKIFAX4550 ISDN monitors the paper status when the power supply is on and during printing. In the following cases, the OKIFAX4550/OKIFAX4550 ISDN interrupts the printing process as a paper jam. Printing can be recovered by opening the cover, removing the jammed paper, and closing the cover.
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Normal rotation Pulse motor (main) Reverse rotation Electromagnetic clutch Manual feed sensor Paper sensor Outlet sensor Warm-up Paper feed Printing Operation mode Timing Chart for Paper Feed (Tray Feed) 379 / 41309401TH Rev.4...
Toner Low Detection • Hardware configuration of toner sensor The figure below shows the hardware configuration of the toner sensor. Image drum unit Agitation bar (iron) Magnet Toner sensor lever Photointerrupter Hardware Configuration of Toner Sensor • Toner detection method Toner sensor Magnet draw-in (1) Toner sensor monitoring conditions are shown in the figure below.
Cover Open Opening the stacker cover turns off the microswitch on the high-voltage power supply board to suspend +5 V supply to the high voltage power supply. This results in the stop of all high-voltage outputs. At the same time, the CVOPN signal is issued to notify the main control board of the switch status and cover open processing is executed.
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Section 1 CABINET ASSEMBLY (OKIFAX4550/OKIOFFICE87) 1/2 Rev. Oki parts Number Description Q ty Remarks Unit-Printer Refer to Section 11 HOLDER-ASSY Refer to Section 11 4YA4116-1228G001 LED HEAD General specification-31B OKIFAX4550 40521101 LED HEAD Unit-51J OKIOFFICE87 41016104 Cable-Flat-Assy For OKIFAX4550 THAI production 4YX4083-1134G001 CABLE FLAT ASSY.
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Clamp-Cable OKIOFFICE87 * 2: If there are the parts stock, they can be used as spare parts for OKIFAX4550 UK production. Do not order with these parts number. * 3: This is the spare parts kit for OKIFAX4550 UK production.
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Section 10 PLATE ASSEMBLY-BASE Rev. Oki parts Number Description Q ty Remarks Plate-Base A Rubber Foot 40606901 Sheet-Insulation 40128001 Cord-Falt (FUJI CARD) Sheet-FG 448 / 41309401TH Rev.4...
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SECTION 11 PRINTER BASE FRAME UNIT Heat assy 449 / 41309401TH Rev.4...
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Pressure Roller B (Back Up Roller) 3PP4083-1233P001 Paper Guide (R) 3PP4083-1232P001 Paper Guide (L) 1PP4083-1231P001 Paper Holder 3PP4083-1192P001 Paper Sensor Exit 4PP4083-1247P001 Hopping Spring 40638001 Contact-CB 40638102 Conn, Cord-HV Screw 40625401 4PP4083-1137P001 Spring Pressure (R) *1 = Only for OKIFAX4550/OKIOFFICE87 450 / 41309401TH Rev.4...
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Section 11 PRINTER BASE FRAME UNIT 2/2 Rev. Oki parts Number Description Q ty Remarks 40562401 Sheet Guide 40592801 Heat Assy. 120V 40592802 Heat Assy. 230V 40034001 Stopper Spring 4PB4091-6047P001 Caution Label (TR) 230V 40688601 Washer-TR 40710301 Guide-Gear T 40634701...
PC-LOADING General Application This specification applies to the OKIFAX4550/OKIOFFICE87, an MFP unit capable of two-way communication using the parallel port as its standard feature. General This specification describes the details of PC loading through the Centro connector provided in the OKIFAX4550/OKIOFFICE87.
Basic Operation Supported Functions The PC loading functions described herein are as follows. Functions equivalent to those used in the existing HSLS (High Speed Loading System) are supported. Default data area loading function Language area loading function Flash memory area program loading function These PC loading functions are supported only when the OS used on the PC side is either MS-DOS Ver.
PC Loading Procedure PC Loading upon Memory Error Occurrence 3.1.1 Explanation on Procedure The PC loading procedure when the LCD on the MFP displays “MEMORY ERROR” for a hash NG state due to one reason or another is explained below. (1) Activate the MS(PC)-DOS with the host PC and the MFP connected via the Centro cable.
PC Loading by Manual Operation 3.2.1 Explanation on Procedure Loading shall be performed as shown below when the PC loading function is selected by key operation by a service man. (1) Activate the MS(PC)-DOS with the host PC and the MFP connected via the Centro cable. (2) Input the copy command from the MS(PC)-DOS on the PC to output the loading data file in binary specification to the LPT1 in order to transfer the loading data to the MFP.
LCD Messages The LCD message in each operation state is shows below. Note that each message does not vary with the default type or language type. (1) Upon transition to PC loading function Transition by manual operation PC-LOADING Transition by a memory error MEMORY ERROR (2) During data receiving before loading end buzzer sounding PC-LOADING...
Buzzer Sounding Patterns The buzzer sounding patterns for various cases are shown below. In each case, the buzzer frequency is 2,400 Hz and the sound volume is maximum. Upon Start of PC Loading Upon Normal End Upon Error Occurrence The following sounding patterns are provided for indicating various error causes. Intermittent sounding is repeated until the MFP power is turned off.
List of Error Causes and Corresponding Codes The table below lists the error causes likely to occur during PC loading and the corresponding codes. When an error occurs, the corresponding error code is displayed, the buzzer sounds in the corresponding pattern and transition to the permanent loop state occurs. (See Note 1.) See “4.
MFP power off until the buzzer indicating the end of MFP loading sounds. Loading Processing Time The processing time for reloading in the whole OKIFAX4550/OKIOFFICE87 area (program 1, language and default) is shown below. Use the value only as reference since the transfer time varies with each type of PC.
APPENDIX G RMCS SYSTEM MANUAL (For Model 40) Notes to RMCS user Introduction RMCS stands for the Remote Management Center System. The purpose of this system is to speed up customer service and reduce maintenance costs. 1.2. System Configuration of RMCS MODEL40 System configuration of RMCS Model 40 is shown below.
Quick Set-up manual for RMCS Model 40 RMCS Installation Insert the disk to set up the RMCS in the drive. Start up Installer. Execute installation by following the SETUP screen. * You can set an operator password during Install. * You can skip password registration. * You can use up to 15 alphanumeric characters to set up a password.
SYSTEM Main Screen Screen Titles Once the RMCS for Win is booted, the System Main screen appears. The titles used in the System Main screen are explained next. Title Bar: Displays the folder names that are displayed on the User Display window. Menu Bar: Displays the menu that executes the various functions.
DISK by Models 4.2.1 Adding Models You must run Install by using the DISK by the models and add models to run maintenance on the facsimile devices. The procedure is explained next. (1) Insert the DISK by the facsimile models in the drive. (2) Select [Install] on the [FAX] menu.
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4.3.2 Selecting User Information To select the user information subject to maintenance so as to move to the Model OFFLINE screen. Select the user information on which you want to run maintenance at the User Display window. Select [Select] on the [User] menu. * You can select by right clicking at the All Users window.
Model Main Screen Screen Title When User Information is selected at the RMCS for Win SYSTEM Main screen, the Model Main screen appears. The Model Main screen is explained next. Title Bar: To display the facsimile model name Menu Bar: To display the menu at which each function is executed Area to display user information and operator information: To display user information and operator IDs to set/display/edit...
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5.2.1 Loading To load file-format data from the RMCS (maintenance work PC) to the target FAX device. The data in the target FAX device is replaced with the loaded data. Select items to load at the [File[LOAD(→FAX)]] sub-menu on the [Remote Operation] menu. All data User data Serviceman data...
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5.2.4 Initializing To initialize the contents of registration of the target FAX device by sending the initialization command to the target FAX device from the RMCS (Maintenance work PC). (1) Select an item to initialize at the [Initialization of FAX] sub-menu on the [Remote Operation] menu.
APPENDIX H OKIFAX4550/OKIOFFICE87 TROUBLESHOOTING MANUAL General This manual shall be used to identify the failure cause when a failure of the board is detected as a result of recovery through board replacement, etc. Therefore, the solder failure, pattern failure, part mounting failure are excluded.
R46 Board (OKIOFFICE87) Description Remarks See: Memory error LCD display or test print NG Figures H.1 (1/4~4/4) Reading running system NG Document feed error, etc. Figure H.2 Read image data NG All white, all black, image disturbance, etc. Figures H.3 (1/2, 2/2) Heater NG Printer alarm 4, etc.
Description 46F Board (OKIFAX4550) 4.1.1 Memory error 1: Memory error Note1: When RAM-NG appears on the test print Error displayed on LCD (See Note 1.) Waveforms of pins 11, 26 , 28 of FLS are similar to Figures H.1(1/4, 2/4)
4.1.2 Reading running system NG 2: Reading running system NG (document feed error) Motor does not start when the document is fed to PC1 Pin 81 of IC2 becomes "L" when the document is inserted to PC1 Motor does not stop when the document is fed to Pin 12 of IC14 becomes "L"...
4.1.3 Read image data NG 3: Read image data NG Sensor LED is lit 5V input to pin 2 of TR505 when the sensor is lit Voltage of pin 3 of TR1 comes down approximately 0.7 V than pin 1 when the sensor is lit Replace IC16.
4.1.4 Heater NG 4: Heater NG (printer alarm 4) Pin 27 of IC2 repeated 5V and 0V ON/OFF during printing Replace IC2. Pin 1 results in 5V output when approximately 3V is input to pin 3 of IC18 Replace IC18. Pin 3 becomes lower than 1V when 5V is input to pin 2 of TR502...
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4.1.5 Recording paper running system NG 5: Recording paper running system NG Recording paper feed is NG Motor is started? Pin 2 of TR512 changes from 0V to 5V when recording paper is fed Input waveforms of pins 17, 26 of IC9 are similar to Figures H.4(1/2, 2/2) Replace IC2.
4.1.6 Printed image data NG 6: Printed image data NG Printed image is All black or all white Signals of pins 25, 29, 30 of IC2 are similar to Figures H.5(2/6, 3/6, 4/6) during printing Positive after-image provided Signals of pins 33, 35 of IC2 change between 0V and 5V cyclically during printing Waveforms are similar...
4.1.7 Sending NG 7: Sending NG Call origination is impossible Call origination mode is (DP or PB) Pin 2 of IC2 repeats 5V and 0V cyclically during DP call origination Protocol signal receiving is NG Replace IC2. During protocol signal receiving, sine wave or modulated sine wave input is provided between pins 2 and 3 of IC12...
4.1.8 Receiving NG 8: Receiving NG RING signal cannot be detected 5V and 0V are alternately input to pin 9 of IC14, synchronized with the RING signal Pin 195 of IC2 repeats 5V and 0V cyclically, synchronized Check CN10. with the RING signal Protocol signal receiving is NG Replace IC14.
4.1.9 Clock NG 9: Clock NG Clock display is NG All other operation display are OK Memory check is OK (memory error does not displayed on operation panel) See the operation See the memory error. interface error. Time error Battery voltage at 2.5V or higher Replace the battery.
4.1.10 No sound from the speaker 10: No sound from the speaker Monitor Monitor or buzzer buzzer Communication normal Sine wave or modulated wave input is provided at pin 13 of IC11 during communication See sending or receiving NG. Replace TR501. Pulse wave input is provided at pin 5 of IC11 when the key is pressed or the soft...
4.1.11 PC/IF not operating correctly 11: PC/IF does not operate correctly Pin 11 of CN11 (BUSY-P) is near 0V Pin 11 of IC20 is near 0V Replace IC20. Replace IC2. Waveform of pin 1 of CN11 (STB-N) is similar to Figure H.7(2/2) Check CN11 connection.
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4.1.12 Operation interface not operating correctly 12: Operation interface does not operate correctly Pin 77 of IC2 remains at 0V Pin 79 of IC2 remains at 0V or 5V Pin 5 of IC15 remains at 0V or 5V Check CN4 Replace IC15.
R46 Board (OKIOFFICE87) 4.2.1 Memory error 1: Memory error Note1: When RAM-NG appears on the test print Error displayed on LCD (See Note 1.) Waveforms of pins 11, 26 , 28 of FLS1 are similar to Figures H.1(1/4, 2/4) 11 : WR 26 : CE 28 : OE Waveform of pin 14 (RAS)
4.2.2 Reading running system NG 2: Reading running system NG (document feed error) Motor does not start when the document is fed to PC1 Pin 94 of CPU1 becomes "L" when the document is inserted to PC1 Motor does not stop when the document is fed to Pin 12 of IC14 becomes "L"...
4.2.3 Read image data NG 3: Read image data NG Sensor LED is lit 5V input to pin 2 of TR5 when the sensor is lit Voltage of pin 3 of TR6 comes down approximately 0.7 V than pin 1 when the sensor is lit Replace IC16.
4.2.4 Heater NG 4: Heater NG (printer alarm 4) Pin 98 of IC2 repeated 5V and 0V ON/OFF during printing Replace IC2. Pin 1 results in 5V output when approximately 3V is input to pin 3 of IC18 Replace IC18. Pin 3 becomes lower than 1V when 5V is input to pin 2 of TR2...
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4.2.5 Recording paper running system NG 5: Recording paper running system NG Recording paper feed is NG Motor is started? Pin 2 of TR505 changes from 0V to 5V when recording paper is fed Input waveforms of pins 17, 26 of IC9 are similar to Figures H.4(1/2, 2/2) Replace CPU1.
4.2.6 Printed image data NG 6: Printed image data NG Printed image is All black or all white Signals of pins 86, 87, 88 of IC2 are similar to Figures H.5(2/6, 3/6, 4/6) during printing Positive after-image Signals of pins 93, 95 of IC2 provided change between 0V and 5V cyclically during printing...
4.2.7 Sending NG 7: Sending NG Call origination is impossible Call origination mode is (DP or PB) Pin 63 of IC2 repeats 5V and 0V cyclically during DP call origination Protocol signal receiving is NG Replace IC2. During protocol signal receiving, sine wave or modulated sine wave input is provided between pins 2 and 3 of IC10...
4.2.8 Receiving NG 8: Receiving NG RING signal cannot be detected 5V and 0V are alternately input to pin 9 of IC14, synchronized with the RING signal Pin 71 of IC2 repeats 5V and 0V cyclically, synchronized Check CN10. with the RING signal Protocol signal receiving is NG Replace IC14.
4.2.9 Clock NG 9: Clock NG Clock display is NG All other operation display are OK Memory check is OK (memory error does not displayed on operation panel) See the operation interface error. Time error See the memory error. Battery voltage at 2.5V or higher Replace the battery.
4.2.10 No sound from the speaker 10: No sound from the speaker Monitor Monitor or buzzer buzzer Communication normal Sine wave or modulated wave input is provided at pin 13 of IC8 during communication See sending or receiving NG. Replace TR1. Pulse wave input is provided at pin 5 of IC8 when the key is pressed or the soft...
4.2.11 PC/IF not operating correctly 11: PC/IF does not operate correctly Pin 11 of CN11 (BUSY-P) is near 0V Pin 45 of IC12 is near 0V Replace IC12. Replace IC2. Waveform of pin 1 of CN11 (STB-N) is similar to Figure H.8(2/2) Check CN11 connection.
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4.2.12 Operation interface not operating correctly 12: Operation interface does not operate correctly Pin 101 of CPU1 remains at 0V Pin 92 of CPU1 remains at 0V or 5V Pin 9 of IC15 remains at 0V or 5V Check CN4 Replace IC15.
04W Board 4.3.1 LCD display NG 1: LCD not displayed Input of pin 27 of IC1 changes from 0V to 5V upon power on Input of pin 4 of IC503 changes from 0V to 5V upon power on Input of pin 5 of IC503 comes down to 0V then goes back to 5V upon completion Replace IC502.
4.3.2 Operation not responded 2: Operation not responded Clock display normal See 1: LCD is not displayed. LED is not lit. A pin either pin 33 through pin 48 of IC1 changes to 5V or near 0V when the LED should be lit Replace IC1.
G4N Board 4.4.1 ISDN Board NG (01) 1: ISDN Board NG (01) The signal BOOT2 from 46F/R46 board to G4N board is High level at power on. Check BOOT2 signal level High at CN10-A11 pin of 46F/R46 board without G4N board. Check 46F/R46 board Check CPU-97 pin solderling.
4.4.2 ISDN Board NG (02) 2: ISDN Board NG (02) Program hash NG at flash memory in G4N board. Check FLS chip solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 12, 14, 43, 15 of FLS are similar to Figure H.9 Replace FLS and re-loading G4N program...
4.4.3 ISDN Board NG (03) 3: ISDN Board NG (03) MUPIS I/F initial sequence couldn’t be completed during 10 seconds. Check CN1 solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 51, 50, 27 of RAM3 are similar to Figure H.10(1/3).
4.4.4 ISDN Board NG (04) 4: ISDN Board NG (04) Initializing IC2 (ISDN LSI) couldn’t be completed. Check IC2 solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 75, 76, 79 of IC2 and pin 53 of CPU are similar to Figures H.11(1/3, 2/3).
4.4.5 ISDN Board NG (05) 5: ISDN Board NG (05) The result of self test of IC2 (ISDN LSI) is NG. Check IC2 solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Replace IC2. 565 / 41309401TH Rev.4...
4.4.6 CPU ROM HASH NG 6: CPU ROM HASH NG HASH of CPU Internal ROM is uncorrect. Check CPU solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Replace CPU. 566 / 41309401TH Rev.4...
4.4.7 CPU RAM NG 7: CPU RAM NG Test result of CPU Internal RAM is NG. Check CPU solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Replace CPU. 567 / 41309401TH Rev.4...
4.4.8 PROGRAM HASH NG 8: PROGRAM HASH NG Program hash NG at flash memory in G4N board. Check FLS chip solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 12, 14, 43, 15 of FLS are similar to Figure H.9 Replace FLS and re-loading G4N program...
4.4.9 RAM NG 9: RAM NG DRAM read/write test result is NG. Check RAM1 solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 14, 31, 13, 2 of RAM1 are similar to Figure H.12. Replace RAM1 Replace G4N board.
4.4.10 DPRAM NG 10: DPRAM NG Dual Port RAM read/write test result is NG. Check RAM3 solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 51, 50, 27 of RAM3 are similar to Figure H.10(1/3). Check CN1 solderling Waveform of pins 1, 6, 7, 17 of RAM3 are similar...
4.4.11 G4 mode communication NG 11: G4 mode communication NG Check ISDN cable. Connect correctly Check user/service setting concerned. Set parameter correctly Waveform between CN2-3 pin and 6 pin, and between CN2-4 pin and 5 pin are similar to Figure H.13(1/2). Check T1, CN2, R583-586, R597-600, L4 solderling.
4.4.12 G3 mode communication NG 12: G3 mode communication NG Able to communicate at G4 mode Check No. 11 item During protocol signal sending or receiving, sine wave or modulated sine wave output is provided between pin 44 and pin 46 of CN1 and between pin 48 and pin 46 of CN1.
4.4.13 G4 mode PC loading NG 13: G4 mode PC loading NG Error at G4 mode PC loading. Check CN1, RAM3, RAM1, FLS, IC1 solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 51, 50, 27 of RAM3 are similar to Figure H.10(1/3).
4.4.14 Power ON NG (01) 14: Power ON NG (01) LCD display "ISDN BOARD I/F ERROR" at power on. Check CN1, RAM3, IC2, IC1, FLS, CPU solderling. Good Re-solderling Check appearance of G4N board. Good Modify bad point Waveform of pins 51, 50, 27 of RAM3 are similar to Figure H.10(1/3).
4.4.15 Power ON NG (02) 15: Power ON NG (02) G4A Board not detected at power on. Check MUPISID signal level at pin 39 of CN1 High Check 46F/R46 board Check CN1 solderling 575 / 41309401TH Rev.4...
Page 576
Stop: 500MS/s 20 Acqs C1-Width FLS-pin 26 300.5ns (FLS1-pin 26) Low signal amplitude C4-Width FLS-pin 28 123.0ns (FLS1-pin 28) Low signal amplitude C2-Width 101.2ns Low signal amplitude 5.00 V 5.00 V M50.0ns 2.4 V 20 Jun 1998 5.00 V 5.00 V 19:06:46 Figure H.1 (1/4) FLASH RD Stop:...
Page 577
Stop: 500MS/s 4 Acqs C1-Width RAM2,3-pin 14 127.50ns (RAM1-pin 14) Low signal amplitude C4-Width RAM2,3-pin 30,31 50.25ns (RAM1-pin 37,38) Low signal amplitude RAM2,3-pin 3 (RAM1-pin 13) 5.00 V 5.00 V M25.0ns State 20 Jan 1998 5.00 V 5.00 V 18:35:58 Ref1 5.00 V 25.0ns...
Page 579
500mV A 100ns 2.31 V CN5-pin 1 IC13-pin 3 (IC3-pin 3) CH1gnd CN5-pin 8 CH2gnd Figure H.3 (1/2) A 100ns 2.30 V IC6-pin 12 (IC13-pin 39) CH1gnd ADCLK IC6-pin 7 CH2gnd Figure H.3 (2/2) 579 / 41309401TH Rev.4...
Page 580
TEK/2430 500mV /div NORMAL 10mSEC/div 500mV /div NORMAL 10mSEC/div DHON1 IC9-pin 27,16 REF1 REF1 IC9-pin 26 IC9-pin 17 REF1 500mV /div NORMAL 10mSEC/div Figure H.4 (1/2) TEK/2430 500mV /div NORMAL 500 SEC/div 500mV /div NORMAL 500 SEC/div IC9-pin 26 IC9-pin 17 Figure H.4 (2/2) 580 / 41309401TH Rev.4...
Page 581
272 Acqs Stop: 2.50MS/s C2 Period 137.60 s C2 + width 36.00 s DBPWN IC22-pin 9,10,11 (IC2-pin 89) 10 Jun 1998 1.00 V M 20.0 s 2.52 V 10:16:34 Figure H.5 (1/6) 160 Acqs Stop: 2.50MS/s C2 Period 137.60 s C2 + width 35.88 s CHPWN...
Page 582
0 Acqs Stop: 2.50MS/s : 218.8 s @: 195.6 s C2 Period 137.60 s C2 + width 36.00 s TR2PWN IC2-pin 29 (IC2-pin 87) 10 Jun 1998 1.00 V M 20.0 s 2.52 V 11:00:50 Figure H.5 (3/6) 10 Acqs Stop: 2.50MS/s : 210.0 s...
Page 583
Tek Run: 250MS/s Sample Trig? C2 + Width 1.5996 s HLATCH IC2-pin 111 (IC2-pin 207) 9 Jun 1998 1.00 V M 200ns 2.52 V 18:48:40 Figure H.5 (5/6) Tek Run: 1.00GS/s Sample Trig? C1 Freq 6.6852MHz HCLCK IC2-pin 112 C2 + Width (IC2-pin 202) 1152.25ns HDATA...
Page 584
Stop: 500MS/s 98 Acqs IC3-pin 2 C1-Width 250.3ns Low signal amplitude C4-Width IC3-pin 8 203.4ns Low signal amplitude IC3-pin 4 IC3-pin 14 5.00 V 5.00 V M50.0ns Pattern LXXL 20 Jun 1998 5.00 V 5.00 V 19:13:36 Figure H.6 (1/2) Stop: 500MS/s 1 Acqs...
Page 585
Figure H.7 (1/2) RTC Time Read Figure H.7 (2/2) RTC Time Set 585 / 41309401TH Rev.4...
Page 586
Stop: 10.0MS/s 3 Acqs : 19.8 s @: 15.0 s IC20-pin 9, 8 (IC12-pin 46) FAULT IC20-pin 3, 4 (IC12-pin 44) AUTOFEED IC15-pin 13 (IC12-pin 26) 5.00 V 5.00 V M5.00 s Width 5 Feb 1998 5.00 V 10:31:07 Figure H.8 (1/2) Stop: 50.0MS/s 27 Acqs...
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