Oki OkiFax 1050 Service Manual
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Oki OkiFax 1050 Service Manual

Oki OkiFax 1050 Service Manual

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Chapter 0
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Summary of Contents for Oki OkiFax 1050

  • Page 1 Chapter 0 Front Cover...
  • Page 2 Federal Communications Commission Requirements for End Users Federal Communications Commission Requirements for End Users This device has been granted a registration number by the Federal Communications Commission, under Part 68 rules and regulations for direct connection to the telephone lines. In order to comply with these FCC rules, the following instructions must be carefully read and applicable portions followed completely.
  • Page 3 FCC Telephone Consumer Protection Act FCC Telephone Consumer Protection Act The Federal Communications Commission Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device to send any message via a telephone fax machine unless such message clearly contains, in a margin at the top or bottom of each transmitted page or on the first page of the transmission, the date and time it is sent and an identification of the business or other entity, or other individual sending the message, and the telephone number of the sending machine...
  • Page 4 Canadian Department of Communications Requirements for End Users Canadian Department of Communications Requirements for End Users The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements. The Department does not guarantee the equipment will operate to the users satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company.
  • Page 5 Lindice de charge (IC) assigne a chaque dispositif terminal indique, pour eviter toute surcharge, le pourcentage de la charge totale qui peut etre raccordee a un circuit telephonique boucle utilise par ce dispositif. La terminaison du circuit boucle peut etre constituee de nimport quelle combinaison de dispositifs, pourvu que la somme des indices de charge de lensemble des dispositifs ne depasse pas 100.
  • Page 6 Federal Communications Commission Radio Frequency Statement Federal Communications Commission Radio Frequency Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interfer-ence in a residential installation.
  • Page 7 Canadian Department of Communications Radio Interference Statement Canadian Department of Communications Radio Interference Statement This apparatus complies with the Class A limits for radio interference as specified in the Canadian Department of Communications Radio Interference Regulations. Cet appareil est conforme aux normes Class A dinterference radio tel que specifier par le Ministere Canadien des Communications dans les Reglements DInterference Radio.
  • Page 8 1.1.16 Minimum scan line time for receiving When receiving from OKIFAX: 0 ms When receiving from non-OKIFAX: 10 ms at 3.85 line/mm 5 ms at 7.7 line/mm 1.1.17 Print speed Max. 4 sheets per minute (OKIFAX 1050) Max. 8 sheets per minute (OKIFAX 2350/2450) 1.1.18 Pre-heating time No pre-heating mode...
  • Page 9 1.1.25 Memory capacity Basic model: 256 k-byte (OKIFAX 1050/2350) 512 k-byte (OKIFAX 2450) Optional memory: One of 512 k-byte or 1 M-byte memory board can be added. (OKIFAX 1050) One of 512 k-byte, 1M-byte or 2 M-byte memory board can be added. (OKIFAX 2350/2450) Note: For OKIFAX 1050, choose either memory board or PC I/F board.
  • Page 10 Two-digit automatic dialing OKIFAX 1050: 40 locations OKIFAX 2350: 64 locations OKIFAX 2450: 99 locations Manual Dialing in Broadcast: Up to 5 locations Keypad dialing Chain dialing Mixed dialing Group dialing OKIFAX 1050: 5 dialing groups OKIFAX 2350: 10 dialing groups OKIFAX 2450: 20 dialing groups 1.2.29 Realtime dialing 1.2.30 Automatic pause signal insertion...
  • Page 11 1.2.38 Printer counter display (For drum, toner, total print) 1.2.39 Total page counter (scan) 1.2.40 Quick scanning (OKIFAX 2350/2450) 6 sec. minimum ® A4 size, STANDARD resolution Note: Not available in OKIFAX 1050. 1.2.41 Date and clock adjustment 1.2.42 PC interface (option) 1.2.43 Language selection 2 languages (LCD)
  • Page 12 1.3 General Maintenance Functions 1.3 General Maintenance Functions 1.3.01 Self-diagnosis FLASH memory check RAM check RAM check (MEMORY board: option) Print test 1.3.02 Scan calibration (Adjustment of scanning level) 1.3.03 LED test 1.3.04 Tone send test 1.3.05 Multi-frequency (MF) send test 1.3.06 High-speed modem send test 1.3.07 High-speed modem receive test 1.3.08 Tone (TEL/FAX) test...
  • Page 13 1.4 General Appearance 1.4 General Appearance Figure 1.4.1 shows the general appearance of the OKIFAX 1050/2350/2450. Figure 1.4.2 shows the control panel of the OKIFAX 1050. Figure 1.4.3 shows the control panel of the OKIFAX 2350. Figure 1.4.3 shows the control panel of the OKIFAX 2450.
  • Page 14 Figure 1.4.2 OKIFAX 1050 Control Panel Figure 1.4.2 OKIFAX 1050 Control Panel...
  • Page 15 Figure 1.4.3 OKIFAX 2350 Control Panel Figure 1.4.3 OKIFAX 2350 Control Panel...
  • Page 16 Figure 1.4.4 OKIFAX 2450 Control Panel Figure 1.4.4 OKIFAX 2450 Control Panel...
  • Page 17 1.5 Basic Performance Specifications 1.5 Basic Performance Specifications Table 1.5.1 shows basic performance specifications. Note: Technical function setting Function program setting One-touch key pressed F: SELECT FUNCTION key pressed Table 1.5.1 (1/10) Basic Performance Specifications No. Item Specifications _______________________________________________________________________________________________ Applicable line 1) General switched telephone network (GSTN) 2) Private branch exchange (PBX) (OT9+2) Line interface...
  • Page 18 NA legal (216 mm) G3/A4 8.46" (215 mm) Legal [US/CANADA] Automatic document feeder (ADF) Up to 11.7" (297 mm) in length. Max. 30 documents: NA Letter or A4 (20-1b) Max. 15 documents: NA Letter or A4 (13-28lb bond paper) Documents shall be placed facedown on ADF stacker.
  • Page 19 Note: One single sheet only should be loaded on the manual loading feeder at a time. For best results use OKI DATA recommended papers 1) Xerox 4200 (20 - lb/base weight paper) 2) L-type paper for photo-printers Recording paper cassette...
  • Page 20 215.9 215.9 10.76 273.3 11.46 13.76 349.5 8.18 8.11 8.18 0.12 0.12 0.12 0.12 0.12 0.12 0.16 3.95 0.09 0.16 3.95 0.16 3.95 0.09 0.16 3.95 LETTERSIZE ISO A4 SIZE NA LEGAL SIZE inch inch inch 279.4 11.7 355.6 215.9 215.9 10.5 266.7...
  • Page 21 "MSG. IN MEMORY", and the ALARM LED turns Minimum scan line time 0 ms, when receiving from an OKI DATA facsimile. for receiving 5 ms at 7.7 line/mm and 10 ms at 3.85 line/mm when receiving from a non-OKI DATA facsimile.
  • Page 22 Fallback Transmission Activated by Activated by Activated by Protocol rank speed FTT (Times) RTN (Times) PPR (Times) 14400 bps 4 (Note 1) ITU-T V.17 (V.33) 12000 bps 4 (Note 1) ITU-T V.17 (V.33) 9600 bps 4 (Note 1) ITU-T V.17 (V.29) 7200 bps 4 (Note 1) ITU-T V.17 (V.29)
  • Page 23 Note: No. of sheets is counted provided that ITU-T No.1 sample documents are used. Note : Back-up time on electrical interruption: Min. one hour (OKIFAX 2450 only) Note: OKIFAX 1050/2350 does not back up the message received in memory for the power failure. Telephone handset General telephone function is available while the power is on.
  • Page 24 PC interface applications (Option) The following four modes are supported: (Applies to EIA class 1) 1) PC local printer mode 2) PC scanner mode 3) PC transmission mode 4) PC reception mode Power supply unit and power consumption of the machine Nominal input 120 VAC voltage...
  • Page 25 Figure 1.5.1 Ambient Condition...
  • Page 26 1.6 Reports and Lists 1.6 Reports and Lists Table 1.6.1 (1/23) Reports and Lists Specifications Table 1.6.1 shows Reports and Lists Specifications. Note : F +OT: Press FUNCTION and One-touch key FP: Function program setting Technical function setting Item Specifications _______________________________________________________________________________________________ Call-back message The transmitter sends a call-back message to the...
  • Page 27 Transmitting subscriber identification(TSI) printing Received TSI can be printed at the top of the received page. * TF + 10 (To enable or disable this function) * TF + 09 Local date and time printing (OFF/ONCE/ALL pages) TSI Printing and Local Date and Time Printing Format: (Example) Cancel report The fax can automatically print out a power-off report when the...
  • Page 28 Activity report The fax can print out an activity report manually, or automatically when 30 communications are recorded. * REPORT PRINTOUT+1(Manual printout) * TF + 34 (Automatic printout, Default is OFF) Message Confirmation Report Format: (Example)
  • Page 29 (1) Title of the report (2) Date and time when the report was printed (3) Sender ID (4) Total TX and RX time (5) Date of transmission or reception (6) Time when the communication started (7) Time span of the fax communication. (8) Identification of the remote station Personal ID/Location ID/TSI/CSI/Dial number or space (9) Communication mode:...
  • Page 30 (Printer Alarm)/CANCL (Confidential reception T.O.) Note :1The following cases are included: Unmatched handshaking to the received NSF. Unmatched password to the received NSC in the polling transmission mode. Note 2 : The following cases are included: The STOP key is pressed. •...
  • Page 31 Reports and Lists - Continued Item Specifications Message confirmation report The fax can print out a message confirmation report manually or automatically depending on user set-up. Note 1:When COPY key is pressed immediately after a single location transmission, this report can be printed (Manual printout) Note 2:A portion of the first page of the TX document will...
  • Page 32 (1) Title of the report (2) Date and time when the report was printed (3) Sender ID (4) Date of transmission or reception (5) Length of time for which the fax was connected to the line (6) Identification of the remote station Personal ID/Location ID/TSI/CSI/Dial number (7) Communication mode Reference to ACTIVITY REPORT...
  • Page 33 Broadcast confirmation report The fax can print out a broadcast confirmation report manually or automatically, depending on user set-up. * COPY key (Manual printout): Pressed immediately after broadcast, will enable the manual printing of a broadcast confirmation report. + REPORT PRINTOUT + 2 (Manual printout) * FP +02 (To enable or disable automatic printing) Broadcast Confirmation Report Format: (Example)
  • Page 34 Confidential reception report The fax can print out this report automatically on completion of a confidential reception. Confidential Reception Report Format: (Example) Telephone directory This directory is printed manually. (REPORT PRINTING +3) See following sections for examples...
  • Page 35 Telephone Directory for OKIFAX 1050 (1/2): (Example) Telephone Directory for OKIFAX 1050 (1/2): (Example)
  • Page 36 Telephone Directory for OKIFAX 1050 (2/2): (Example) Telephone Directory for OKIFAX 1050 (2/2): (Example)
  • Page 37 Telephone Directory for OKIFAX 2350 (1/4): (Example) Telephone Directory for OKIFAX 2350 (1/4): (Example)
  • Page 38 Telephone Directory for OKIFAX 2350 (2/4): (Example) Telephone Directory for OKIFAX 2350 (2/4): (Example)
  • Page 39 Telephone Directory for OKIFAX 2350 (3/4): (Example) Telephone Directory for OKIFAX 2350 (3/4): (Example)
  • Page 40 Telephone Directory for OKIFAX 2350 (4/4): (Example) Telephone Directory for OKIFAX 2350 (4/4): (Example)
  • Page 41 Telephone Directory for OKIFAX 2450 (1/6): (Example) Telephone Directory for OKIFAX 2450 (1/6): (Example)
  • Page 42 Telephone Directory for OKIFAX 2450 (2/6): (Example) Telephone Directory for OKIFAX 2450 (2/6): (Example)
  • Page 43 Telephone Directory for OKIFAX 2450 (3/6): (Example) Telephone Directory for OKIFAX 2450 (3/6): (Example)
  • Page 44 Telephone Directory for OKIFAX 2450 (4/6): (Example) Telephone Directory for OKIFAX 2450 (4/6): (Example)
  • Page 45 Telephone Directory for OKIFAX 2450 (5/6): (Example) Telephone Directory for OKIFAX 2450 (5/6): (Example)
  • Page 46 Telephone Directory for OKIFAX 2450 (6/6): (Example) Telephone Directory for OKIFAX 2450 (6/6): (Example)
  • Page 47 (REPORT PRINTING +4) Configuration Report Fomat: Configuration Report: Service bit=OFF *1: When second paper cassette (is installed and paper size is programmed, 2'nd paper size will appear in No. 11. *2: OKIFAX 1050/2350 only. Service Default Report (Configuration Report: Service bit=ON)
  • Page 48 *1: When second paper cassette is installed and paper size is programmed, 2nd paper size will appear in No.11. *2: For OKIFAX 2450...
  • Page 49 Chapter 2 #2A-Setup Information A. Setup Information 2.1 General The following flowchart outlines the installation procedure.
  • Page 50 2.2 Site Selection 2.2 Site Selection INSTALLATION Precautions for Installation 2.2.01 Fluctuation in line voltage 120VAC (102V to 127V) 2.2.02 Room temperature 50 to 90°F (10 to 32°C) 2.2.03 Humidity 20 to 80% RH 2.2.04 Operating environment Pressure: Equivalent of altitude of 8200 feet (2500 m) and below. 2.2.05 Exposure Within five minutes at luminous intensity 2,000 lux (with the stacker cover opened).
  • Page 51 Note: 1 This space is necessary for handling the handset. (option) (page 2-3) 2 This space is necessary for removing the recording paper cassette. 3 This space is necessary for installing the document stacker and to allow space for the fan exhaust. 2.2.07 Levelness of installation surface 1 degree max.
  • Page 52 2.3 Unpacking 2.3 Unpacking Procedure 2.3.01 Remove tape on the top of the carton box and open its cover. .Figure 2.3.1 Unpacking Procedure (1) 2.3.02 Take out the accessory box from the carton box. (See Figure 2.3.1) 2.3.03 Take out the machine with plastic wrapper from the box...
  • Page 53 Figure 2.3.1 Unpacking Procedure (2)

  • Page 54: Okifax

    Figure 2.3.2 Unpacking Procedure (3)
  • Page 55 2.4 Check of Contents 2.4 Check of Contents After removing the machine and accompanying accessories from the carton box, check the contents according to the following list: Table 2.4.1 Contents List Item No. Name Remarks OKIFAX 1050/2350/2450 facsimile AC power cord I/D unit Already installed.

  • Page 56: I/D Unit

    2.5 Installation of Attachments 2.5 Installation of Attachments 2.5.01 Items Image Drum (ID) Unit (already installed) Toner cartridge Recording paper Document stacker...

  • Page 57: Toner Cartridge

    Toner cartridge 2.5.02 Procedure Toner cartridge • Peel off the fixed tape attached on the copy stacker. • Open the document table and copy stacker. .Figure 2.5.1 Toner Cartridge Installation (1) • Take the cushion out of the ID unit Figure 2.5.2 Toner Cartridge Installation (2) Installation of Attachments - Continued •...
  • Page 58 Figure 2.5.3 Toner Cartridge Installation (3) • Ensure that the plastic tab on the right-hand side of the toner cartridge recess lines up with the groove on the toner cartridge. • Press down on both ends to make sure the cartridge is fully seated. Figure 2.5.4 Toner Cartridge Installation (4) •...
  • Page 60 Recording paper Recording paper Note: About 250 sheets of the new paper can be set in the recording paper cassette. • Remove the paper cassette from the facsimile by pulling it straight out. Figure 2.5.6 Recording Paper Cassette Installation (1) •...

  • Page 62: Document Stacker

    Document stacker Document stacker • Hang the document stacker onto the stacker pins. Figure 2.5.8 Document Stacker Installation...
  • Page 63 2.6 AC Cord Connection 2.6 AC Cord Connection The power supply is provided as follows. Nominal input voltage 120VAC (Voltage range 102 to 127VAC) 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.
  • Page 64 2.7 Telephone and Line Connections 2.7 Telephone and Line Connections 2.7.01 Procedure • Connect the lines. Note: For US version, telephone cable can be inserted into either upper side or lower side of telephone terminal. Figure 2.7.1 Telephone and Line Connections...
  • Page 65 2.8 Packing for Shipment 2.8 Packing for Shipment CAUTION: When packing the OKIFAX 1050/2350/2450 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."...
  • Page 66 #2B. Programming and Initial Settings B. Programming and Initial Settings 2.9 Initial Settings 2.9.1 General Procedure of Key Operation Figure 2.9.1 shows the general procedure of key operation.
  • Page 67 2.9.2 Technical Functions 2.9.2 Technical Functions This section explains setting items generally conducted by service personnel, not by users. Table 2.9.1 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.
  • Page 68 Determining the adequate equalizing level of the cable. EQL1, EQL2, EQL3 and without EQL are selectable. Setting value Setting for OKIFAX 2350 and Setting for OKIFAX 1050 and OKIFAX 2350 with OKIFAX 2350 with 14.4 Kbps modem 9.6Kbps modem without EQL...
  • Page 69 EQL3 EQL3 *1 *1: The equalizer is effective for both sending and receiving sides. Note: By this adjustment you can tune up your equipment to the inversed characteristic of the cable. Figure 2.9.2 shows the characteristics of the cable equalizer. Figure 2.9.2 Characteristics of the Cable Equalizer (EQL1, EQL2 and EQL3) MDY/DMY Switches LCD display and report print...
  • Page 70 When TF09 is set to "ALL", TSI is printed for the all received pages. ON (1): Enable OFF (0): Disable (Reference) TSI; Transmitting Subscriber Identification No-toner memory reception Enables or disables the memory reception when the fax is in no toner condition. When TF09 is set to "ALL", TSI is printed...
  • Page 71 disconnects. TYPE2 means: Same as TYPE1 (above) except No. 5 (listed below). 5. If the fax does not detect signal during operation, the machine will go to standby mode. Real time dialing Enables or disables this feature. TYP2 3 types selectable. Type Setting TYPE1...
  • Page 72 Bit 15 Bit 16 Bit 15 Bit 16 T/F tone attenuator Adjusts the attenuation (dB) for the 10 dB tone send signal (for TEL/FAX SW) for TEL/FAX switching. Adjusting value is 0 to 15 dB in one dB steps. Bit 17 Bit 18...
  • Page 73 Bit 17 Bit 18 T.F. Item Specifications Default MF attenuator Adjusts the attenuation (dB) for the send MF tone 6 dB power level. Adjusting value is 0 to 15 dB in one dB Bit 19 Bit 20 Bit 19 Bit 20...
  • Page 74 T.F. Item Specifications Default Ring duration detection time Selects the minimum ring detection time to meet country's requirements. (MS) Adjusting time is 100 MS to 990 MS in 10 MS steps. For example: (120 ms) Bit 21 Bit 22 12 x 10 ms = 120 ms T.F.
  • Page 75 T.F. Item Specifications Default Strobe for LED head Setting of LED print head strobe signal. 0110 Note 1: When the rank marking of the new re-placed LED print head (new part) is same as that of the old used LED print head (old part), you do not always have to set the LED print head strobe signal.
  • Page 76 T.F. Item Specifications Default MH only Switches the function of limiting image compres-sion only to the MH codes. ON (1): Coding scheme is MH only. When the receiving image data is affected by noise on the telephone line. OFF (0): Any of MH, MR and MMR. High-speed modem rate Specifies the modem's starting speed, 14.4k, 9.6k, or 14.4k...
  • Page 77 T.F. Item Specifications Default Page memory size Selects the page memory size for A4 and LEGAL in (only for OKIFAX 2450) order to use the message memory effectively. LEGAL (1): Available LEGAL A4 (0): Not available LEGAL Note: In OKIFAX 2450, if you print out Legal size documents, you should select LEGAL setting.
  • Page 78 2.9.2.02 TEL/FAX automatic switching 2.9.2.02 TEL/FAX automatic switching This function is used for the purpose of TEL/FAX automatic switching as follows. If the machine detects a call with a signal indicating an auto send facsimile call, it starts an automatic document receiving operation.
  • Page 79 2.9.2.03 TAD mode 2.9.2.03 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. 12. Note 2: The predetermined time is selectable between 20 or 35 sec.
  • Page 80 #TEL/FAX mode flow chart TEL/FAX mode flow chart Notes: *1: Ring Back Tone 1 sec. ON, 3.2 sec. OFF *2: When you want to talk by phone, pick up handset. *3: The called party can send CED to the calling party immediately to start FAX communication if the CNG is detected during the period.
  • Page 81 #TAD mode flow chart TAD mode flow chart *1 To enable the manual TX mode. Load document ® Press START button ® Manual transmission...
  • Page 82 #TAD mode flow chart TAD mode flow chart • In case of TYPE 2: If the fax does not detect signal during working of TAD, the machine will go to standby mode.
  • Page 83 2.9.3 Technical Functions Example 2.9.3 Technical Functions Example 2.9.3.01 Service Bit Setting Purpose To enable or disable the following functions: Drum and toner counter display (clear) Service default report printing Protocol dump report printing Ring response time setting Dial parameters setting Printer counters clearing Procedure Operations:...
  • Page 84 2.9.3.02 Technical functions 2.9.3.02 Technical functions Operations: The Display Shows: Figure 2.9.1 General Operation Flow...
  • Page 85 Table 2.9.2 (1/3) Technical Functions Table 2.9.2 (1/3) Technical Functions Name of Function The Display Shows Service bit Setting: 0 (OFF), 1 (ON) Line monitor control Setting: 0 (OFF), 1 (ON) Error report (MCF) MCF: Message Confirmation Report Setting: 0 (OFF), 1 (ON) Echo protection Setting: 0 (OFF), 1 (ON) Off-hook bypass...
  • Page 86 Table 2.9.2 (2/3) Technical Functions Table 2.9.2 (2/3) Technical Functions Name of Function The Display Shows TSI print Setting: 0 (OFF), 1 (ON) No toner memory reception Setting: 0 (OFF), 1 (ON) TAD mode (For external telephone asnwering Setting: 0 (OFF), 1 (TYPE1), 2 (TYPE2) device.) Real-time dialling Setting: 0 (OFF), 1 (TYPE1), 2 (TYPE2)
  • Page 88 Table 2.9.2 (3/3) Technical Functions Table 2.9.2 (3/3) Technical Functions Name of Function The Display Shows CML timing Setting: 0 (100ms)~19 (1900ms), 100ms steps. T1, timeout value (XTTO value) Setting: 000 (000 sec)~255(255sec) Strobe width for LED head Setting: 0 (OFF), 1 (ON) MH only Setting: 0 (OFF), 1 (ON) High-speed modem rate...
  • Page 90 %2.9.4 Users Functions 2.9.4 Users Functions This section explains the items usually set up by general users. Table 2.9.3 shows the initial setting items and their purposes. Each F.P.can be accessed by entering the corresponding function number on Function Programming. The detailed procedure of the initial setting items will be explained on the following pages.
  • Page 91 Table 2.9.3 (1/6) Feature Specifications Item Specifications Auto dial 10 one-touch keys are provided. (OKIFAX 1050) 1) One-touch dial 15 one-touch keys are provided. (OKIFAX 2350) 30 one-touch keys are provided. (OKIFAX 2450) Max. 32 digits for each location number.
  • Page 92 Receive mode Selectable by key operation. 1) Auto receive mode 2) Manual receive mode Selectable by key operation. 3) Telephone/fax automatic Selectable by key operation. switchover The fax recognizes a fax call from a verbal call as follows: If the fax detects a call with a CNG signal, it starts an automatic document receive operation.
  • Page 93 (Alpha search) to each of one-touch keys and two-digit dial codes, 01 to 40 for OKIFAX 1050, 01 to 64 for OKIFAX 2350and 01 to 99 for OKIFAX 2450. This name is called a location ID. Any location ID can be searched and displayed on LCD.
  • Page 94 Manual loading feeder One single sheet from the feeder above the first recording paper cas-sette can be copied. (OKIFAX 2350/2450) Example of sheets: Transparency for an overhead projector 11 Manual loading feeder...
  • Page 95 %Table 2.9.3 (3/6) Feature Specifications Table 2.9.3 (3/6) Feature Specifications Item Specifications Broadcast Max. 55 (OKIFAX 1050), Max. 84 (OKIFAX (Memory transmission) 2350) and Max. 134 (OKIFAX 2450) remote locations can be specified by the following means: One-touch keys (with or without a group list). Two-digit auto dial codes.
  • Page 96 Smooth printing The documents received in the STD mode can be printed at the FINE resolution by means of generating one line based on the two consecutive original lines and printing it between them.
  • Page 97 Item Specifications Dual Access The documents for transmission can be read (except OKIFAX 1050) into the memory even while the fax is engaged in another memory transmission, reception in the ECM or non-ECM mode. 1) Operation of memory transmission while the fax is engaged in a communication (memory TX, memory RX or print mode RX).
  • Page 98 %Table 2.9.3 (5/6) Feature Specifications Table 2.9.3 (5/6) Feature Specifications Dual Access Combination Table (1/2)
  • Page 99 To allow the operator (in this case, the person who wishes to as-sign a password to mail-box) to assign a 4-digit password code to one of 8 (OKIFAX 1050/2350) or 16 (OKIFAX 2450) mail-box memory segments in the message memory.
  • Page 101 %Users Initial Settings Users Initial Settings One Touch Key Operations...
  • Page 102 To enable or disable the relay report. Display when one location is programmed to auto dial No. 40 for OKIFAX 1050 or to auto dial No. 64 for OKIFAX 2350 or to auto dial No. 99 for OKIFAX 2450. Polling transmission/reception Polling TX: The documents placed on the feeder can be collected by a remote station.
  • Page 103 Report printing 1. Activity report 2. Broadcast message confirmation report (Multi location) 3. Phone directory report 4. Configuration report 5. Protocol dump report * TF + 01 (Sets to on Service bit) 6. Log. report...
  • Page 104 (OKIFAX 2450). 2. Two-digit auto dial program Auto-dial No. 01 to 40 for OKIFAX 1050, No. 01 to 64 for OKIFAX 2350 and No. 01 to 99 for OKIFAX 2450 allows registering telephone number in 32 dig-its (numeral, -, P and space) and ID for the telephone directory function 15 characters (alphabetic, numeric and symbolic).
  • Page 105 %Table 2.9.4 (3/3) One-touch key Program Settings Table 2.9.4 (3/3) One-touch key Program Settings F+OT Item Specifications...
  • Page 106 To allow the operator (in this case, a person who wishes to assign a password to mail box) to assign a 4-digit password code to one of 8 for OKIFAX 1050, 8 for OKIFAX 2350 and 16 for OKIFAX 2450 mail-box memory...
  • Page 107 Memory operation Substitutive message print 1. Substitutive message print The messages are printed when toner has been newly supplied or an operator performs the substitu-tive operation. When memory reception data is existed the memory and the MEMORY RX MODE is indicated by AUTO REC key operation for OKIFAX 2350/2450, machine will print out the memory reception data.
  • Page 108 %Table 2.9.4 User Function Program Settings Table 2.9.4 User Function Program Settings Function Program F+OT Item Specifications Default Message confirmation report Enables or disables the automatic (Single location) message confir-mation report printing after a single location call. ON: Prints the MCF report. OFF: Disables this function.
  • Page 109 Closed network The fax compares the last 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 automati-cally disconnected. OFF/RX only/TX and RX selectable. * Prevention of direct mail or wrong number calls.
  • Page 110 Remote receive This function is used to transfer the call (except OKIFAX 2450) received by external telephone (connected to fax) by entering preset two-digits. (for OKIFAX 1050/2350 only) The following combinations are selectable. OFF®11®22®33®44®55® 66®77®88®99 Selects the ring response time.
  • Page 111 %2.9.5 User's Functions Example 2.9.5 User's Functions Example 2.9.5.01 Function Program Operations: To bring the LCD up to the desired message, press SELECT FUNCTION key once and one-touch key No. 9 in the standby mode. (In case of no message in memory) Press the key.
  • Page 112 %Table 2.9.5 User's Functions Table 2.9.5 User's Functions Tap No. Name of Function The Display Shows Message confirmation report (Single location) Message confirmation report (Multiple locations) Sender ID Line monitor volume Remote diagnosis Closed network TX mode default Telephone/fax automatic switchover timer Buzzer volume...
  • Page 113 1'st cassette paper size 2'nd cassette paper size Select language Software ringer set Remote receive Ring response time Memory and feeder selection One-touch key parameters Note1: RESOLUTION & ORIGINAL of Tx mode defult setting can be selected by using key.
  • Page 114 Note2: When the service bit is set to "off" and the correspond bit of XPARA of national code is set to "off", Ring response is bypassesd as follows: Note3: When 2'nd tray is not mounted on OKIFAX 1050/2350/2450, 2'nd paper size is bypassed as follows:...
  • Page 115 %2.9.5.02 Ring response time 2.9.5.02 Ring response time Before specifying the ring response time, set the service bit on following the operations shown in Section 2.9.3.01 (Service Bit Setting). Operations: (Each ring response time of 5,10,15 or 20 15 entered. To bring the LCD up to the desired message, press SELECT FUNCTION key once and one-touch key No.
  • Page 116 %2.9.5.03 Dial parameters (In case the service bit is "OFF".) 2.9.5.03 Dial parameters (In case the service bit is "OFF".) To get the "DIAL PARAMETER" message on the display, perform the same operation as listed in Section 2.9.12. (Dial parameters settings).
  • Page 117 %2.9.6 Clock Adjustment 2.9.6 Clock Adjustment Operations: To set the date and time, press the SELECT FUNCTION key once and one-touch key No. 9 in the standby mode. (If no message is in memory) Enter 3 using the ten-key pad. Press the key.
  • Page 118 #%2.9.7 Dual Access Operation (for OKIFAX 2350/2450) 2.9.7 Dual Access Operation (for OKIFAX 2350/2450)
  • Page 119 %2.9.8 System Data Programming 2.9.8 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: To program system ID data, press the SELECT FUNCTION key once and one-touch key No. 9 in the standby mode.
  • Page 121 2.9.9 One-Touch Key Programming 2.9.9.01 Purpose One-touch keys No. 01 through 10 (OKIFAX 1050), No. 01 through 15 (OKIFAX 2350) or No. 01 through 30 (OKIFAX 2450) allow registration: (Default: Blank) Telephone number (numeral, -, P (Dial Pause), and space) in 32 digits. Alternate telephone number in 32...
  • Page 123 2.9.10 Two-digit Auto Dial Programming 2.9.10.01 Purpose Auto dial No. 01 through 40 (OKIFAX 1050), No. 01 through 64 (OKIFAX 2350) or No. 01 through 99 (OKIFAX 2450) allow registering a telephone number in 32 digits (numeral, -, P (Dial Pause), and space) and ID for the telephone directory function in 15 characters (alphabets, numeral, and symbols).
  • Page 124 Grouping some one-touch keys and some two-digit auto dial codes to which telephone numbers have been assigned. This group setting makes multiple polling reception and broadcast operation simple. OKIFAX 1050: 5 dialling groups OKIFAX 2350: 10 dialling groups OKIFAX 2450: 20 dialling groups...
  • Page 125 Case 2: Cancelling member(s) from a group...
  • Page 127 #%2.9.12 Dial Parameters Settings 2.9.12 Dial Parameters Settings 2.9.12.01 Procedure The following shows the case in which the service bit is on. The display shows:...
  • Page 128 %2.9.12.02 Procedure 2.9.12.02 Procedure Table 2.9.11 Default Settings of Dial Parameters...
  • Page 129 %Table 2.9.6 Dial Parameters Settings Table 2.9.6 Dial Parameters Settings Item Specifications National code Selecting the following parameters: INT'L, GRB, NOR, SWE, AUS, USA, BEL, HOL, SUI, AUT, ESP, ITA, GRE, GER, FRE Note: Must be set to USA for proper machine operation. Redial tries 0 to 10 tries.
  • Page 130 Auto start Enables or disables the function of dialing without pressing the START key in one-touch dial and 2-digit auto dial modes. ON: Enable OFF: Disable Access digit Prefix dialing digits with which PBX Connects the fax to the public line. OFF/digit(s) selectable.
  • Page 131 To allow the operator (in this case, a person who wishes to assign a password to mail-box) to assign a 4-digit password to one of 8 for OKIFAX 1050, 8 for OKIFAX 2350, 16 for OKIFAX 2450 mail-box memory segments in the message memory.
  • Page 132 %2.9.14 Memory Operations 2.9.14 Memory Operations 2.9.14.01 SUBST. MSG PRINT This function will force printing of messages received into memory due to a low toner condition. Note: Print quality may be poor under these circumstances.
  • Page 133 %2.9.14.02 CONF. RX MSG. PRINT 2.9.14.02 CONF. RX MSG. PRINT Messages received in a personal box can be printed out only if the password entered by the operator maches that registered for the box.
  • Page 134 %2.9.15 Off-line Tests 2.9.15 Off-line Tests 2.9.15.01 Purpose Activate self-diagnosis which includes: Print test CPU-ROM version printing CPU-RAM check FLASH version printing LANGUAGE version printing DEFAULT version printing RAM check RAM check (memory board: optional) PC-I/F version printing (optional) 2.9.15.02 Procedure...
  • Page 135 Fig. 2.9.4 Printed Data of Self-diagnosis Print Test (Example)
  • Page 136 %2.9.16 On-line Tests 2.9.16 On-line Tests 2.9.16.01 Transmission Load documents Make sure that The loaded documents are fed in automatically. The STD and NORMAL lamps light. The display shows SELECT LOCATION. Dial the telephone number of the remote machine by the ten-key pad. Make sure that the telephone number of the remote machine is shown on the display.
  • Page 137 %2.9.16.02 Reception 2.9.16.02 Reception Use another machine for dialling. Make sure that The display shows AUTO REC. START. The message is automatically received. Typical message reception flow is described in Figure 2.9.6.
  • Page 138 #%Fig. 2.9.5 Typical Transmission Flow Fig. 2.9.5 Typical Transmission Flow...
  • Page 139 #%Fig. 2.9.6 Typical Reception Flow Fig. 2.9.6 Typical Reception Flow...
  • Page 140 %2C. Installation of Optional Units C. Installation of Optional Units 2.10.01 Items • Memory board • PC interface board • Telephone handset...
  • Page 141 %2.10.02 Procedure 2.10.02 Procedure • Turn the facsimile power switch OFF and remove the AC power cord. Note: Unplug the AC power cord from the wall outlet first and then from the facsimile. • Do not remove unnecessary parts. • Since screws and small parts are easily misplaced, they should temporarily be attached to their original positions.
  • Page 142 Installation of the memory board In the OKIFAX 1050, one of either the MEM or MEM-2 memory board can be mounted on to the connector CN12 of the OKIFAX 1050 MCNT board. However, choose either memory board or PCIU board in order to use this connector (CN12).
  • Page 143 Note: Fit the fixing hooks an anchor positions on the cassette guide, after that, lift the rear cover slightly and push it to the inside. Tighten the two screws S1 and S2.
  • Page 144 Remove Rear Cover Remove the rear cover by removing the two screws S1 and S2 . Install PCIU board First, install PCIU board on to the connector CN12 of the OKIFAX 1050 MCNT board, and then tighten the two screws to the separation plate.
  • Page 145 After having taken out the telephone set, telephone handset and curled cord from the carton box, connect them as show in Fig. C.3.2. After installing the connection cable to the telephone set, extend the connection cable as in Fig. C.3.3.
  • Page 146 After installing the cradle assembly to the telephone set, fix the screw as in Fig. C.3.4. Install the telephone assembly on the facsimile transceiver unit. In this case, cram the telephone assembly into the position of Fig. C.3.5 by lifting the facsimile transceiver unit slightly. When 2'nd tray is mounted on the facsimile transceiver unit, install the telephone assembly in the position of Fig.
  • Page 147 Connect the terminal of the other side of the connection cable formed on the rear side of the equipment, like Fig. C.3.6, to the telephone set.
  • Page 148 (7) Optional Telephone (boards) Telephone interface board (TEL-U) Hook board (HOOK) Note: Either the PC Interface or Optional Memory Board can be installed in the OKIFAX 1050. Because there is one expansion connector, however, both boards cannot be installed at the same time.
  • Page 149 %3.1.02 The unit configuration of the OKIFAX 2350/2450 is as follows: 3.1.02 The unit configuration of the OKIFAX 2350/2450 is as follows: Figure 3.1.2 Unit Configuration of OKIFAX 2350/2450 (1) Main control board (R175 for OKIFAX 2350/R175-2 for OKIFAX 2450) (2) Modem board (MODEM) (3) Network control unit (NCU) (4) PC interface board (P050): option...
  • Page 150 %3.2 Overall Dimension and Mechanical Structure of OKIFAX 1050 3.2 Overall Dimension and Mechanical Structure of OKIFAX 1050 Figure 3.2. Overall Dimension andMechanical Structure...
  • Page 151 %3.3 Overall Dimension and Mechanical Structure of OKIFAX 2350/2450 3.3 Overall Dimension and Mechanical Structure of OKIFAX 2350/2450 Figure 3.3 Overall Dimension andMechanical Structure...
  • Page 152 3.4 Boards and Units 3.4.01 OKIFAX 1050 Boards and Units The following boards, and units constitute the OKIFAX 1050 facsimile transceiver machine. Main control board MCNT: (R054/R050) Network control unit board NCU: (NCUU) Memory board (option) MEM: (MEMO; 0.5MB, MEMO-2; 1MB) Telephone interface board (option) TEL: (TEL-U, HOOK) PC...
  • Page 153 Presence of document at scanning position (ADF sendor PC2) Send motor control Fan motor control Main motor control Registration motor control Modem chip (For OKIFAX 1050) and Modem board (For OKIFAX 2350/2450) Modulation and demodulation for V.33 and V.17 (For OKIFAX 2450 / OKIFAX 2350: Option) Modulation and demodulation for V.29 and V.27 ter Modulation and demodulation for V.21 D/A converter...
  • Page 154 %3.5.02 Operation panel unit: YOPE (OKIFAX 1050)/YOPE-2 (OKIFAX 2350/2450) board 3.5.02 Operation panel unit: YOPE (OKIFAX 1050)/YOPE-2 (OKIFAX 2350/2450) board Note: Operation Panel Unit must be replaced as an assembly. Individual boards are not available. Supervision of switches on operation panel Control of LEDs on operation panel Control of LCD on...
  • Page 155 %3.5.03 NCUU board 3.5.03 NCUU board Conversion of receive data and receive signals to internal signal level Conversion of send data and send signals to external signal level Generation of dial pulses to telephone line Detection of ringing signal Detection of busy tone (conjunction with Modem unit) Detection of hook signal (on hook /off hook indication) Interface with telephone handset (option) Output of send data and send signals to telephone line Input of receive data and receive signals from telephone line...
  • Page 156 %3.5.04 Power supply unit: FXVE (120V)/FXVH (230V) board 3.5.04 Power supply unit: FXVE (120V)/FXVH (230V) board Conversion of main alternating current to the following direct currents: +5V DC power supply +8V DC/-8V DC power supply +30V DC power supply Supplying of main alternating current to fuser unit Generation of medium voltages +300V, -300V, +400V, -450V and 0V Generation of high voltages -1.35 kV, -0.75 kV and +1 kV...
  • Page 157 %3.5.05 MEMO (memory) board (Option) 3.5.05 MEMO (memory) board (Option) P-SRAM Memory storage for ECM operations, memory broadcast, delayed broadcast, etc.
  • Page 158 %3.5.06 P050 board (Optional PC Interface) 3.5.06 P050 board (Optional PC Interface) The P050 board is used as an interface between the OKIFAX units and PC compatible computer...
  • Page 159 %3.5.07 HOOK board (Optional handset) 3.5.07 HOOK board (Optional handset) Hook switch circuit...
  • Page 160 %3.5.08 TELU board (Option): For US and Canada 3.5.08 TELU board (Option): For US and Canada Speech network circuit...
  • Page 161 %3.5.09 TQSB board (installed within second paper cassette option) 3.5.09 TQSB board (installed within second paper cassette option) Second paper cassette unit for OKIFAX 2350/2450. MOS-CPU Motor control Interfaces with the Main Control Board to provide second paper cassette control R054 Package Layout (OKIFAX 1050)
  • Page 162 IOGA 1: Input output gate array IOGA 2: Input output gate array PCi: Photocoupler number i POW.UNIT: Power supply unit PSRAM: Pseudo-SRAM R-MOTOR: Resist motor RTC: Real time clock S-MOTOR: Send motor SRAM: Static random-access memory Xtal: Crystal oscillator Figure 3.5.1 OKIFAX 1050 Block Diagram...
  • Page 163 %#Figure 3.5.2 OKIFAX 2350/2450 Block Diagram Figure 3.5.2 OKIFAX 2350/2450 Block Diagram...
  • Page 164 Figure 3.7.4 (For OKIFAX 1050)/Figure 3.8.4 (For OKIFAX 2350/2450) show the G3 send picture signal route In the G3 mode, the data transfer route from the scan unit up to the DRAM (for OKIFAX 1050)/ P-SRAM (for OKIFAX 2350/2450) is the same as in the copy mode described in 3.6.01.
  • Page 165 In G3 communication, this is the route of the procedural control signals (pre-message, post-message phases etc.) at 300bps. The protocol send data is read into DRAM (for OKIFAX 1050)/P-SRAM (for OKIFAX 2350/2450) in the sequence the contents of varrious data stored in the FLASH memory area in advance under the control of CPU.
  • Page 166 #%%3.7 Signal Flow by Mode of operation (OKIFAX 1050) 3.7 Signal Flow by Mode of operation (OKIFAX 1050) 3.7.01 Copy picture signal Figure 3.7.1 shows the picture signal route in local copy mode. 3.7.02 300 bps send signal Figure 3.7.2 shows the 300 bps send protocol signal route.
  • Page 167 #%Okifax 1050 300 bps Send Signal Okifax 1050 300 bps Send Signal...
  • Page 168 #%Okifax 1050 300 bps Send Signal Okifax 1050 300 bps Send Signal...
  • Page 169 #%Okifax 1050 G3 Send Picture Signal Okifax 1050 G3 Send Picture Signal...
  • Page 170 #%Okifax 1050 G3 Receive Picture Signal Okifax 1050 G3 Receive Picture Signal...
  • Page 171 #%Okifax 1050 Report Print Signal Okifax 1050 Report Print Signal...
  • Page 172 %3.8 Signal Flow by Mode of Operation (OKIFAX 2350/2450) 3.8 Signal Flow by Mode of Operation (OKIFAX 2350/2450) 3.8.01 Copy picture signal Figure 3.8.1 shows the picture signal route in local copy mode. 3.8.02 300 bps send signal Figure 3.8.2 shows the 300 bps send protocol signal route. 3.8.03 300 bps receive signal Figure 3.8.3 shows the 300 bps receive protocol signal route.
  • Page 173 #%Okifax 2350/2450 bps Send Okifax 2350/2450 bps Send...
  • Page 174 #%Okifax 2350/2450 bps Receive Signal Okifax 2350/2450 bps Receive Signal...
  • Page 175 #%Okifax 2350/2450 G3 Send Picture Signal Okifax 2350/2450 G3 Send Picture Signal...
  • Page 176 #%Okifax 2350/2450 G3 Receive Picture Signal Okifax 2350/2450 G3 Receive Picture Signal...
  • Page 177 #%Okifax 2350/2450 Report Print Signal Okifax 2350/2450 Report Print Signal...
  • Page 178 2. Input ratings Voltage: AC 120 V+6%, -15% (AC 102 V to 127 V) AC 230 V+15%, -14% (AC 198 V to 264 V) Frequency: 50 Hz/60 Hz +/-2% 3. Output ratings Transformer type A (OKIFAX 1050) Pin No. Rated Rated...
  • Page 179 CN3-28 -8 V 0.1 A 0 to 0.1 A -15 to 6.5 V 3.0 VP-P 3.6 VP-P...
  • Page 180 #%General functional description General functional description...
  • Page 181 %3.9.02 Power Supply Unit (FXVE/FXVH) 3.9.02 Power Supply Unit (FXVE/FXVH) General functional description 1. General The power supply unit consists mainly of an AC transformer and a power PCB (FXVE board for AC120V/FXVH board for AC230V). A block diagram of the power supply unit is shown in Figure A3.XX. The power PCB is composed of five main circuits: AC input section, heater control section, low-voltage section, high-voltage section and protection circuit.
  • Page 182 DB1/DB2 +300 V/-300 V Voltage applied to developing roller. TR1/TR2 +1 kV/-0.75 kV Voltage applied to transfer roller. -1.35 kV Voltage applied to charging roller. +400 V Voltage applied to cleaning roller.
  • Page 183 %3.9.03 FXVE (for 120 V)/FXVH (for 230 V) Circuit Diagram (2/2) 3.9.03 FXVE (for 120 V)/FXVH (for 230 V) Circuit Diagram (2/2) This circuit consists of power control IC2, photo-sensors and high voltage generation unit. DANGER: 3.9.03 FXVE (for 120 V)/FXVH (for 230 V) Circuit Diagram (2/2) This circuit consists of power control IC2, photo-sensors and high voltage generation unit.
  • Page 184 #%3.10 NCU Board 3.10 NCU Board Explanation of NCU circuit diagram This section briefly describes functional blocks of the NCU circuit diagram. NCUU circuit diagram • Receiving Sensitivity The receiving sensitivity is determined by the operational amplifier IC2. • Transmmission Level The transmission level is determined by operational amplifier IC2 and peripheral resistors and capacitors.
  • Page 185 #%3.11 TELU Circuit Diagram (option) 3.11 TELU Circuit Diagram (option) TEL board is used as the interface board of the optional telephone assembly, when it is installed on the facsimile transceiver. Block diagram Figure 3.11.1 Block Diagram of TEL-U Figure 3.11.1 Block Diagram of TEL-U...
  • Page 186 #%Block Diagram of TEL-U (option) Block Diagram of TEL-U (option)
  • Page 187 #%Relationship between NCUU and TEL-U Relationship between NCUU and TEL-U...
  • Page 188 Picture memory for the reception in memory 2. Memory capacity One of 512 kbyte (MEMO) or 1 Mbyte (MEMO-2) memory board can be added for OKIFAX 1050. One of 512 kbyte (MEMO), 1 Mbyte (MEMO-2) or 2 Mbyte (MEMO-3) memory board can be added for OKIFAX 2350/2450.
  • Page 189 Expanded Memory (Optional) OKIFAX 1050/2350/2450...
  • Page 190 P050 board with RS232C (25 pin) is used as an interface between a PC compatible computer and OKIFAX 1050, 2350 or 2450. The OKIFAX connects to a serial port of the PC using an RS-232D cable (supplied with the optional PC Interface Kit).
  • Page 191 #%3.14 TQSB (Second tray) Circuit Diagram: option 3.14 TQSB (Second tray) Circuit Diagram: option Block diagrm This board is installed as the optional board for OKIFAX 2350/2450. Figure 3.14.1 shows a block diagram of the second tray (option). Function Second tray consists of the following functions: Paper capacity: 500 sheets Paper size: A4, Letter, Legal Paper-size selection: Automatic Cassette/no-cassette selection: Automatic Paper/no-paper selection: Automatic Paper route open to facsimile transceiver unit: Automatic decision Control method: When second tray is installed with the facsimile transceiver unit, the tray is connected to...
  • Page 192 MCNT R054/R050/R175/R175-2 board supervises the heat roller tempera-ture via the thermistor, and regulates the heater roller at a predetermined temperature (about 160 °C for OKIFAX 1050 and about 185 °C for OKIFAX 2350/2450) by connecting or disconnecting the AC voltage supply to the heater.
  • Page 193 #%Layout of Print Station Components Layout of Print Station Components...
  • Page 194 %3.16 Process Operations 3.16 Process Operations 3.16.01 Hopping and feeding Hopping and feeding are affected by the registration stepper motor in the mechanism shown below. Turning the registration motor in the "a" direction drives the hopping roller. Turning the registration motor in the "b"...
  • Page 196 %3.16.02 Charging 3.16.02 Charging Charging is affected by applying a DC voltage to the charge roller thta is in contact with the EP (image) drum surface. The charge roller is composed of two layers consisting of a conductive layer and a surface protective layer that has elasticity, in order to secure a good contact with the EP (image) drum.
  • Page 197 %3.16.03 Exposure 3.16.03 Exposure Light emitted from the LED head irradiates the EP (image) drum surface with negative charges. The surface potential of the irradiated part of the EP drum drops, thereby forming an electrostatic latent image associated with the image signal. The EP (image) drum is coated with an underlayer (UL), a carrier generation layer (CGL), and carrier transfer layer (CTL) on the aluminum base.
  • Page 199 %3.16.4 Developing 3.16.4 Developing Toner is attracted to the electrostatic latent image on the EP (image) drum surface to convert it into a visible toner image. Developing takes place at the contact between the EP (image) drum and the devel-oping roller. As the toner supply roller rotates while rubbing on the developing roller, a friction charge is generated between the developing roller and the toner, allowing the toner to be attracted to the developing roller.
  • Page 201 %3.16.05 Transfer 3.16.05 Transfer The transfer roller is composed of conductive sponge material and is designed to force the EP (image) drum surface and the paper closely into contact. Paper is placed over the EP (image) drum surface, and a positive charge, opposite in polarity to the toner, is applied to the paper from its reverse side.
  • Page 202 A thermister, which is in contact with the heater roller, regulates the heater roller at a predetermined temperature (about 160 °C for OKIFAX 1050 and about 185 °C for OKIFAX 2350/2450). A safety thermostat cuts off voltage supply to the heater by opening the thermostat in the event of abnormal rise in temperature.
  • Page 203 %3.16.07 Cleaning 3.16.07 Cleaning After the end of the transfer, residual toner on the EP (image) drum is attracted to the cleaning roller temporarily by static electricity to clean the EP (image) drum surface.
  • Page 204 %3.16.08 Cleaning of rollers 3.16.08 Cleaning of rollers The charge roller, transfer roller and cleaning roller are cleaned in the following cases: • In warning up at power-on time • In warning up after the cover is opened and closed • When the number of accumulated sheets is 10 or more and the printout operation ends •...
  • Page 205 %3.17 Actual Electo-photographic Process 3.17 Actual Electo-photographic Process The electro-photographic process of the OKIFAX 1050/2350/2450 consists of six essential processes. The following Figure 3.17.1 provides a general description. * Process: 1 : Charging 2 : Exposure 3 : Developing 4 : Transfer 5 : Fusing 6 : Cleaning...
  • Page 206 %3.18 Errors List 3.18 Errors List The errors are listed below. 3.18.01 Major trouble errors • Fuser error (printer alarm 4) • Fan error (printer alarm 3) • Paper supply error ("LOAD PAPER" advisory message) • Paper transport system error ("PAPER JAM" error message) • Paper exit jam ("PAPER JAM" error message) •...
  • Page 207 %3.19 Major Trouble Errors 3.19 Major Trouble Errors 3.19.01 Fuser Error The fuser error indicates an error in thermister on heater. In case the fuser error occurs at the time of printing, the heater is turned off immediately, but the printing continues of that page. However, if the error occurs before the write sensor is turned on, the motors stop.
  • Page 208 • When there is no change with the toner sensor for 2 cycles (6.5 sec. x 2) or more, then the Toner Sensor Alarm is activated. Printing Speed t1 (Toner Exists) Remarks 4 ppm 6.4 sec. 0.31 ~ 2.00 sec. OKIFAX 1050 8 ppm 3.2 sec. 0.16 ~ 1.00 sec. OKIFAX 2350/2450...
  • Page 209 %3.20 Cleaning 3.20 Cleaning The image drum needs cleaning since it gets dirty after having printed copies for a number of times. The two kinds of cleaning are listed in the table below: Cleaning Type Function Remarks Image Drum Cleaning This cleaning removes excess Cleaning is automatically toner that has accumulated on...
  • Page 210 %3.21 Sensors and Switches 3.21 Sensors and Switches 3.21.01 Paper Jam Detection Paper jam detection monitors the location of paper when the printer is powered ON and during printing. If any of the following jams are present, the printing process is interrupted and the message PAPER JAM will be displayed on the LCD.
  • Page 211 #%3.21.02. Sensors and switch control 3.21.02. Sensors and switch control Six types of sensors are used in the printer as listed below. All of their output are processed by the Main Control (MCNT) board. • Inlet sensor 1 • Write sensor (To detect the paper leading edge for printing) • Outlet sensor • Paper end sensor •...
  • Page 212 Figuree 3.21.1 Sensor Location (Top View) Figure 3.21.2 Detail of Sensor/Lever...
  • Page 213 Paper Inlet Jam This jam occurs when either of the following conditions occur. When the printer is powered ON, paper is at inlet sensor 1. After the hopping operation is attempted three times, the leading edge of the paper does NOT reach inlet sensor 1. Figure 3.21.1 Paper Inlet Jam Paper Feed Jam This jam occurs when either of the following conditions occur.
  • Page 214 Chapter 4 %4.1 General This chapter explains the procedures for replacement of parts in the field. 4.1 General 4.1.01 Precautions for Parts Replacement 1. Before starting disassembly and reassembly, always turn the AC power switch OFF, and pull out the AC plug.
  • Page 215 %4.1.2 Tools 4.1.2 Tools Table 4.1.1 shows the tools required for the replacement of parts such as circuit boards and mechanical units. Table 4.1.1 Tools...
  • Page 216 %4.2 How to Disassemble and Reassemble 4.2 How to Disassemble and Reassemble This section explains how to disassemble and reassemble the fax.
  • Page 217 %4.2.1 LED Print Head 4.2.1 LED Print Head (1) Disassembly procedure a) Open the Document Table assembly. b) Open the Stacker Cover by pressing the latches inward. c) Disconnect the flat cable from the PC connector. d) Remove the LED print head while spreading the retainer on the Stacker Cover. Note: Be sure not to directly touch or push on the lens of the LED print head.
  • Page 219 %4.2.2 Image Drum, Rear Cover, NCU Cover, Main Cover, Separation Plate, NCU Board, Modem Board 4.2.2 Image Drum, Rear Cover, NCU Cover, Main Cover, Separation Plate, NCU Board, Modem Board (1) Disassembly procedure 1) Image Drum, Rear Cover, NCU Cover, Main Cover a) Open the Document Hopper assembly.
  • Page 220 g) First, lift the Main Cover from the front side. Then, remove the Main Cover by pushing it toward the rear to dislodge it from the nails at both sides on the rear side. Continue to lift and remove the cover. 2) Separation Plate a) Remove the Separation Plate by removing two screws 4 .
  • Page 221 Note: • OKIFAX 1050: The modem is part of the MCNT PCB and is not removable. • OKIFAX 2350: 9.6 kbps board standard. 14.4 kbps board is optionally available. • OKIFAX 2450: 14.4 kbps board standard. (2) Reassembly procedure Reverse the disassembly procedures.
  • Page 222 %4.2.3 Control Panel Assembly, Paper Guide (U) Assembly. 4.2.3 Control Panel Assembly, Paper Guide (U) Assembly. (1) Disassembly procedure 1) Control Panel Assembly and Paper Guide (U) Assembly a) First, carry out the disassembly procedure up to the point of the 4.2.2 (Main Cover, NCU Cover, Rear Covers, Separation Plate, NCU Board, and Modem).
  • Page 223 b) Feed Roller a. Remove the ground cables by re-moving two screws Ä. b. Remove the Feed Roller by removing the gear and ADF bearings. Use care to manuver the roller around the ground plates with as little bending of the plates as possible. Note: Do not remove the ground plates, as they are electrically connected to the static brushes.
  • Page 224 (2) Reassembly procedure Reverse the disassembly procedures.
  • Page 225 (Control Panel Assembly and Paper Guide (U) Assembly). b) Disconnect the connectors from the MCNT Board and slide the AC inlet from the scanner frame. Thenumbers ofconnectorareshown below: • OKIFAX 1050: 6 connectors • OKIFAX 2350: 7 connectors • OKIFAX 2450: 8 connectors c) Remove the Scanner Unit by re-moving the three screws À.
  • Page 226 Title of Section...
  • Page 227 Title of Section...
  • Page 228 Title of Section...
  • Page 229 Chapter 5 5.1 Setting of LED Print Head Drive Time 5.1 Setting of LED Print Head Drive Time Adjustment point: Technical Functions No. 28 through 31. * To access the Technical Function mode, press SELECT FUNCTION key once, COPY key twice and "2"...
  • Page 230 R52 (OKIFAX 2350/2450)). See Figure 5.2.1. 4) Turn AC power ON. 5) Make sure that the meter reads +4.5V to 5.2VDC. * As an example, R054/R050 (MCNT) board of the OKIFAX 1050 is shown below. (Resistor R52 is located in the same area on the OKIFAX 2350/2450 MCNT board.)
  • Page 231 #5.3 Contact Image Sensor Output Check (Confirmation) 5.3 Contact Image Sensor Output Check (Confirmation) PC board name: R054/R050 (MCNT) board for OKIFAX 1050, R175 (MCNT) board for OKIFAX 2350 and R175-2 (MCNT) board for OKIFAX 2450. Measurement points: SIG signal, CN10-1 pin and ground terminal Specification: A waveform sample is shown below.
  • Page 232 Chapter 6 %6.1 Replacement of Consumable Parts 6.1 Replacement of Consumable Parts The user (or service personnel) is required to replace the following items as consumable parts. 6.1.01 User side Part name Expected Use Before Replacement Reference Item No. in Fig.6.1.1 Toner Cartrige 1200 sheets (ITU-T document sample No.
  • Page 233 Recording paper feeder Jam occurrence in the automatic paper feeder will be less than one in 1,500 operations and misfeeds will be less than one in 500 operations for all specified recording paper. Lithium Battery The lithium battery is mounted on the MCNT board, and (system data backup) is not field replacable.
  • Page 234 %6.2 Preventative Maintenance 6.2 Preventative Maintenance Preventative maintenance of the following items should be performed semi-annually after the machine is installed (or whenever the machine requires service). The description of preventative maintenance is shown in Table 6.2.1. Table 6.2.1 Preventative Maintenance Part Name Procedure Reference Item No.
  • Page 235 Optical sensors Vacuum any dust accumulation from both ADF and power supply optical sensors as necessary. Figure 6.2.1 Parts of Routine Inspection...
  • Page 236 %6.3 Printer Counter Display/Clear 6.3 Printer Counter Display/Clear 6.3.01 Purpose A user can clear the image drum unit count and check some of the other counters (such as the print counter, scan counter) by using the • key or ® key. 6.3.02 Procedure The following shows the case when the service bit has been set OFF.
  • Page 237 %6.4 Printer Counter Display/Clear 6.4 Printer Counter Display/Clear 6.4.01 Purpose The service personnel can clear and check the following counters: Image Drum Toner Image Drum (Total) Print Scan 6.4.02 Procedure The following shows the case when the service bit has been set ON. Note: DRUM (T) will be used to know the total in-use life (printed page count) of the machine.
  • Page 238 6.5 Self-diagnosis Test 6.5.01 Purpose To check ROMs, RAMs and printing function. 6.5.02 Procedure Test report will be automatically printed out with the following items: OKIFAX 1050 Pattern 1 Stair pattern (32 lines in each step) Pattern 2 All black (32 lines)
  • Page 239 FLASH VERSION LANGUAGE In case LANGUAGE is good. HASH OK In case LANGUAGE is not good. HASH NG DEFAULT VERSION DEFAULT In case DEFAULT is good. HASH OK In case DEFAULT is not good. HASH NG RAM1 In case RAMi is good. RAM2 In case RAMi is not good.
  • Page 240 FLASH VERSION FLS1 HASH 27F4 LANGUAGE VERSION EG10 HASH 4C38 DEFAULT VERSION AD02 RAM1 HASH F0FF RAM2 RAM3 *1 marked items are not printed for the OKIFAX 1050. OPT-RAM1 OPT-RAM2 *2 marked items are optional. OPT-RAM3 OPT-RAM4 PC-I/F VERSION PP01...
  • Page 241 HASH 1507 Figure 6.5.1 Self-diagnosis Data...
  • Page 242 %6.6 Sensor Calibration Test 6.6 Sensor Calibration Test 6.6.01 Purpose To adjust the linearity of output levels of contact image sensor.
  • Page 243 Note: After adjustment of levels, check the copy quality by copying test charts or documents.
  • Page 244 %6.7 LED Test 6.7 LED Test 6.7.01 Purpose To check all LEDs on operation panel by lighting. 6.7.02 Procedure...
  • Page 245 %6.8 Tone Send Test 6.8 Tone Send Test 6.8.01 Purpose To send G3 tonal frequencies through the phone line for remote testing. 6.8.02 Procedure...
  • Page 246 #%6.9 High-speed Modem Send Test 6.9 High-speed Modem Send Test 6.9.01 Purpose To check the telephone line quality in combination with a remote station programmed to the high-speed modem receive test mode. 6.9.02 Procedure...
  • Page 247 %6.10 High-speed Modem Receive Test 6.10 High-speed Modem Receive Test 6.10.01 Purpose To check the telephone line quality in combination with a remote station programmed to the high-speed modem send test mode. 6.10.02 Procedure...
  • Page 248 %6.11 MF Send Test 6.11 MF Send Test 6.11.01 Purpose To send the multi-frequencies of tone dialling to the line. 6.11.02 Procedure...
  • Page 249 %6.12 Tone (TEL/FAX) 6.12 Tone (TEL/FAX) 6.12.01 Purpose To check the pseudo-ring back tone of TEL/FAX automatic switching. 6.12.02 Procedure...
  • Page 250 %6.13 Printer Cleaning 6.13 Printer Cleaning 6.13.01 Purpose This drum cleaning function removes the residual toner on the I/D (Image Drum) Unit surface. A printed page will carry the residual toner from the machine. This cleaning should be performed when print quality becomes questionable. 6.13.02 Procedure...
  • Page 251 %6.14 Protocol Dump Data Printing 6.14 Protocol Dump Data Printing 6.14.01 Purpose To analyze the transmitted/received G3 protocol signals. This data is useful when troubleshooting communications problems.
  • Page 252 %6.14.02 Procedure 6.14.02 Procedure Manual print-out of the last communication. Note: The service bit (TF#1) must be ON to enable the Protocol Dump Report.
  • Page 253 #%6.14.03 Dump data description 6.14.03 Dump data description Data sample Figure shows the printed data as a sample. Figure 6.14.1 Protocol Dump Data (Sample: at transmitter side)
  • Page 254 #%6.14.04 Analysis from the data 6.14.04 Analysis from the data The printed out data permits to analyze G3 facsimile communication protocol signals between two facsimile machines. Figure 6.14.2 shows the result of an analysis on the printed data referring to Figure 6.14.1 (Protocol dump data).
  • Page 255 %6.14.05 FCF (Facsimile Control Field) conversion table 6.14.05 FCF (Facsimile Control Field) conversion table Table 6.14.1 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 6.14.1 FCF Signals Conversion Table Abbreviation Hex.
  • Page 256 Facsimile Coded Data 7D FD Partial Page Signal 3D BD Partial Page Request Return to Control for Partial Page 37 B7 Receiver not Ready 76 F6 Receiver Ready...
  • Page 257 %6.15 System Reset 6.15 System Reset 6.15.01 Purpose To clear or initialize the following data: (a) Location data (b) Configuration data (default) 6.15.02 Procedure...
  • Page 258 %6.16 Service Code 6.16 Service Code 6.16.01 The service code can be printed on Activity Report to recognize the result of each communication. 6.16.02 The activity report indicates the code 0000", should a communication terminates on normal status as a service code. 6.16.03 The activity report indicates one of the codes of 90XX, should a communication terminates on abnormal status, as an error code.
  • Page 259 39A1 The number of random-error lines have exceeded the specified limit. 39B0 Memory Overflow has occurred while receiving in memory. 39B1 Memory Overflow occurred during Confidential Reception. 39C0 DECODER hardware error. (cannot reproduce picture) 39C1 DECODER hardware error. (cannot detect end of picture) 41A0 There was no response each time in response to the three post commands.
  • Page 260 90F2 Fuser error. 90F3 Recording paper size error. 90F4 Cover open.

  • Page 261: Table Of Contents

    Chapter 7 %General This chapter contains: (a) Troubleshooting flow charts related to general operations (b) Troubleshooting flow charts by test operations (c) Troubleshooting flow charts placing an emphasis on mechanical portions Section Name of Flow Chart Overall troubleshooting flow chart No LCD operation ALARM LED on Printing test failure...

  • Page 262: Overall Troubleshooting Flow Chart

    #%7.1 Overall Troubleshooting Flow Chart 7.1 Overall Troubleshooting Flow Chart...

  • Page 263: No Lcd Operation

    #%7.2 No LCD Operation 7.2 No LCD Operation...

  • Page 264: Alarm Led On

    #%7.3 ALARM LED On 7.3 ALARM LED On...

  • Page 265: Printing Test Failure

    %7.4 Printing Test Failure 7.4 Printing Test Failure...

  • Page 266: No Local Copy

    #%7.5 No Local Copy 7.5 No Local Copy...

  • Page 267: Auto Dial Failure

    %7.6 Auto Dial Failure 7.6 Auto Dial Failure Note: Make sure that your selected dialing method (tone/pulse) is appropriate for your Telco / PBX needs. Refer to the Dialing Parameters in the Users Documentation. START Will the unit perform a manual dial? NO Can a dial tone be heard when the handset is picked up? NO Make sure the RJ-11C is connected to the LINE Jack on the OKIFAX.

  • Page 268: Transmission Problem

    %7.7 Transmission Problem 7.7 Transmission Problem This section explains how to localize the cause of problems occurred after completion of connection with a remote station. Before beginning: Printout the Activity Report. • Look for common failure items. For instance, is one particular country, area code or phone number always causing the problem? •...
  • Page 269 Note: This procedure determines the cause of a problem which occurs after the OKIFAX unit connects with a remote station. Before troubleshooting any communicaiton problems, run Self-Diagnosis, then verify that the Flash ROM version is the most current version (in accordance with the Product Bulletins (formerly known as Technical Service Bulletins[TSBs]).

  • Page 270: Auto Reception Failure

    #%7.8 Auto Reception Failure 7.8 Auto Reception Failure...

  • Page 271: Reception Problem

    %7.9 Reception Problem 7.9 Reception Problem This section explains how to localize the cause of problems occurred after completion of connection with a remote station. Before beginning: Printout the Activity Report. • Look for common failure items. For instance, is one particular country, area code or phone number always causing the problem? •...
  • Page 272 3) NCU-U board. Note: This procedure determines the cause of a problem which occurs after the OKIFAX unit connects with a remote station. Before troubleshooting any communicaiton problems, run Self-Diagnosis, then verify that the Flash ROM version is the most current version (in accordance with the Product Bulletins (formerly known as Technical Service Bulletins[TSBs] ).
  • Page 273 %7.10 Scan Calibration Test Failure 7.10 Scan Calibration Test Failure START Does the message SCANNING ERROR appear on the LCD when calibrating the CIS? YES Be sure that plain white bond (A4 size) is loaded on the automatic document feeder. Is - 12 vdc present at CN10, pin 4 of the MCNT board? NO Replace the MCNT board YES Replace the Contact Image Sensor...

  • Page 274: Led Test

    #%7.11 LED Test 7.11 LED Test...

  • Page 275: Tone Send Test

    #%7.12 Tone Send Test 7.12 Tone Send Test...

  • Page 276: High-Speed Modem Test

    #%7.13 High-speed Modem Test 7.13 High-speed Modem Test...

  • Page 277: Mf (Tone) Send Test

    #%7.14 MF Send Test 7.14 MF Send Test...

  • Page 278: Tone (Tel/Fax) Send Test

    #%7.15 Tone (TEL/FAX) Send Test 7.15 Tone (TEL/FAX) Send Test...

  • Page 279: No Acoustic Line Monitor

    #%7.16 No Acoustic Line Monitor 7.16 No Acoustic Line Monitor There are two source routes of acoustic line monitor: (a) General communication signal (b) DP pulse signal...

  • Page 280: Power Supply Unit

    #%7.17 Power Supply Unit 7.17 Power Supply Unit...

  • Page 281: No Document Feeding

    #%7.18 No Document Feeding 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 if the following procedures do not solve the problem.

  • Page 282: Multiple Document Feeding O

    #%7.19 Multiple Document Feeding 7.19 Multiple Document Feeding Definition: Multiple document feeding. Multiple documents are not separated and they are fed in the same one feeding operation.

  • Page 283: Document Skew

    #%7.20 Document Skew 7.20 Document Skew...

  • Page 284: Document Jam

    #%7.21 Document Jam 7.21 Document Jam...

  • Page 285: Printer Unit

    %7.22 Printer Unit 7.22 Printer Unit 7.22.01 Precautions 1. Points to check before correcting image troubles (1) Is the printer being run in proper ambient conditions? (See specifications in section 1) (2) Have the supplies (toner and Image Drum) been replaced properly? (3) Are the supplies recommended Okidata Consumables? (4) Is the recording paper normal? (5) Has the Image Drum been loaded properly? 2.
  • Page 286 %7.22.2 Troubleshooting Flow Chart of Printer Unit 7.22.2 Troubleshooting Flow Chart of Printer Unit Overall troubleshooting flow chart: Category LCD message display Trouble Troubleshooting flow chart number Cover open 14:14 [FAX] The cover (copy stacker) is open. COVER OPEN Image drum 14:14 [FAX] Warning message to replace ID unit alarm...

  • Page 287: The Cover (Copy Stacker) Is Open

    %Troubleshooting flow chart 1: Troubleshooting flow chart 1: The cover (copy stacker) is open.

  • Page 288: Warning Message To Replace Id Unit

    %Troubleshooting flow chart 2: Troubleshooting flow chart 2: Warning message to replace ID unit because of its life.

  • Page 289: Engine Controller Error

    %Troubleshooting flow chart 3: Troubleshooting flow chart 3: Engine controller error (ROM/RAM error)

  • Page 290: Fan Motor Rotation Error

    %Troubleshooting flow chart 4: Troubleshooting flow chart 4: Fan motor rotation error...
  • Page 291 %Troubleshooting flow chart 5: Troubleshooting flow chart 5: Printer Alarm 4 START PRINTER ALARM 4 appears on the LCD display. Power OFF, then power ON. After a short delay, does "PRINTER ALARM 4" appear on the LCD display? YES Remove the fuser assembly for testing (Refer to the Action Items Diagram). Check the resistance between the thermistor contacts.

  • Page 292: Recording Paper Feed Jam, Transport

    %Troubleshooting flow chart 6: Troubleshooting flow chart 6: Recording paper feed jam, transport jam, ejection jam, recording size error Note 1: The paper length stop must be set for the correct paper size, but should not be "pinching" the paper. Paper should not be loaded above the "paper fill" indicator. Note 2: The programmed settings of user function number 10 (1st cassette size) and user function number 11 (2nd cassette size) (optional) should be set to match the paper size loaded in each paper cassette.

  • Page 293: No Recording Paper Cassette Or No

    %Troubleshooting flow chart 7: Troubleshooting flow chart 7: No recording paper cassette or not recording paper ACTION Check and/or replace MCNT board. Check the following & replace if necessary.: POWER SUPPY UNIT Cover Open Switch Cover Open Switch connection MCNT Board Check one way clutch gears for proper operation.
  • Page 294 Check entrance sensor lever, hopping roller, and registration motor for dirt. MCNT Board, cover open state. Check cover open state, drum motor, drum motor gear, MCNT Board. Check exit sensor lever, cover open state, PWU, MCNT Board Check MCNT Board Check paper sensor lever, PWU, MCNT Board Action Items Diagram High voltage outputs (and mesaurment points) are connected to the contact assembly as shown in the diagram below.
  • Page 295 Poor fusing (Images are blurred or peeled off when touched by hands) Figure 7.22.1 Abnormal Symptoms of Image Troubles (Example)
  • Page 296 %Troubleshooting flow chart 8: Troubleshooting flow chart 8:...
  • Page 297 %Troubleshooting flow chart 9: Troubleshooting flow chart 9:...
  • Page 298 %Troubleshooting flow chart 10: Troubleshooting flow chart 10:...
  • Page 299 %Troubleshooting flow chart 11: Troubleshooting flow chart 11:...
  • Page 300 %#Troubleshooting flow chart 12: Troubleshooting flow chart 12: This refers to repetitive "spots" or unusual marks on printed pages. Measure the distance between them to determine the problem. Note: "ID" refers to the Image Drum.
  • Page 301 %Troubleshooting flow chart 13: Troubleshooting flow chart 13:...
  • Page 302 %Troubleshooting flow chart 14: Troubleshooting flow chart 15: Troubleshooting flow chart 14: Troubleshooting flow chart 15:...
  • Page 304 Chapter 8 #%ASSEMBLY - OKIFAX 1050 OKIFAX 1050...
  • Page 305 #%ASSEMBLY - OKIFAX 2350/2450 OKIFAX 2350/2450...
  • Page 306 #%SECTION 1 CABINET ASSEMBLY - OKIFAX 1050 OKIFAX 1050...
  • Page 307 #%SECTION 1 CABINET ASSEMBLY - OKIFAX 2350/2450 OKIFAX 2350/2450 Section 1: Cabinet Illustratio OKIFAX Description Okidata Part Number Part Number Number 1050/2350/2450 DOCUMENT HOPPER ASSY. 50607301 1PA4120-1079G1 1050/2350/2450 TRAY: SUB HOPPER 50220901 2PP4120-1084P1 1050/2350/2450 COVER: NCU 53075901 2PP4120-1091P1 1050/2350/2450 COVER: MAIN 53075801 1PP4120-1089P1 1050/2350/2450 COVER: FRONT...
  • Page 308 #%SECTION 2 CONTROL ASSEMBLY - OKIFAX 1050 OKIFAX 1050...
  • Page 309 #%SECTION 2 CONTROL ASSEMBLY - OKIFAX 2350 OKIFAX 2350...
  • Page 310 #%SECTION 2 CONTROL ASSEMBLY - OKIFAX 2450 OKIFAX 2450 Section 2: Control Illustratio OKIFAX Description Okidata Part Number Part Number Number 1050 PANEL: CONTROL ASSY. 50112310 4YA4120-1056G10 2350 PANEL: CONTROL ASSY. 50112311 4YA4120-1056G110 2450 PANEL: CONTROL ASSY. 50112321 4YA4120-1056G210 1050 FILM: ONE TOUCH COVER 52203201 4PB4120-1102P1...
  • Page 311 #%SECTION 3 PRINTER ASSEMBLY - OKIFAX 2350/2450 OKIFAX 2350/2450...
  • Page 312 #%SECTION 3 PRINTER ASSEMBLY - OKIFAX 1050 OKIFAX 1050 Section 3: Printer Illustratio OKIFAX Description Okidata Part Number Part Number Number 1050/2350/2450 COVER: 53069008 2PA4083-6160G8 FACE DOWN STACKER ASSY. 1050/2350/2450 WIRE: GUIDE 51013801 4PB3517-1567P1 1050 MOTOR: MAIN STEPPER 56511303 4PB4122-1243P3...
  • Page 313 1050/2350/2450 BUSHING: PRESSURE 51607601 4PP4083-6052P1 ROLLER 1050/2350/2450 SPRING: BIAS 50925301 4PP4083-6065P1 1050/2350/2450 BASE: LOWER SUB ASSY. 50220701 1PA4120-1157G1 1050/2350/2450 ARM: COVER OPEN 53068901 3PP4083-6058P1 1050/2350/2450 LEVER: RESET (L) 50805801 3PP4083-6053P1 1050/2350/2450 SPRING: STACKER COVER 50924201 4PP4083-6057P1 RESET 1050/2350/2450 GEAR: STACKER COVER 51229401 4PB4083-6197P1 DAMPER...
  • Page 314 1050/2350/2450 FILM: STACKER MYLAR 52203401 4PB4120-1138P1 1050/2350/2450 BRUSH: STATIC: RELEASE 51305103 4PB4120-1051P3 GUIDE 1050/2350/2450 BEARING: TR 51609001 3PP4083-6289P1...
  • Page 315 %#SECTION 4 BASE ASSEMBLY - OKIFAX 1050 OKIFAX 1050...
  • Page 316 #%SECTION 4 BASE ASSEMBLY - OKIFAX 2350/2450 OKIFAX 2350/2450 Section 4: Base Assembly Illustratio OKIFAX Description Okidata Part Number Part Number 1050 POWER TRANSFORMER 56414701 4YB4049-7032P1 (120V) 2350/2450 POWER TRANSFORMER 56414801 4YB4049-7082P1 (120V) 1050/2350/2450 ASSY: CONTACT 56730001 3PA4083-6090G1 1050/2350/2450 POWER SUPPLY UNIT (120V) 56414601 4YA4049-7109G1 1050...
  • Page 317 1050/2350/2450 SCREW 4PB4083-2500P10 1050/2350/2450 SCREW +T2P3-8-HHC 1050/2350/2450 SCREW +P(SW+W)4-6-HHC 1050/2350/2450 LINK: SHEET (L) 50808501 4PP4083-7657G1 2450 BATTERY: BACK UP 56306901 4YB4120-1094P1 1050 SCREW +BTD3-8-IOF 2350/2450 SCREW +BTD3-8-IOF 2350/2450 SCREW +TP2.6-8-HHC 1050/2350/2450 SPRING: SEPARATOR 50930701 4PP4083-7728P1 1050/2350/2450 SPRING: ANTI VIBRATION 50926901 4PP4083-6228P1 1050/2350/2450 INDICATOR: PAPER SUPPLY 57001501...
  • Page 318 #%SECTION 5 SCAN UNIT - OKIFAX 1050/2350/2450 OKIFAX 1050/2350/2450 Section 5: Scan Unit Illustratio OKIFAX Description Okidata Part Number Part Number 1050/2350/2450 FRAME: SCANNER SUB ASSY. 53348001 2PA4120-1160G1 1050/2350/2450 BASE: SCANNER (L) 50221101 2PP4120-1034P1 1050/2350/2450 PLATE: ADF GROUND 51019901 4PP4120-1023P1...
  • Page 319 #%SECTION 6 PAPER ASSEMBLY - OKIFAX 1050/2350/2450 OKIFAX 1050/2350/2450 Section 6: Paper Guide Illustratio OKIFAX Description Okidata Part Number Part Number 1050/2350/2450 ROLLER: FEED (1) ASSY. 50410301 3PA4120-1045G1 1050/2350/2450 PLATE: GROUND (SR) 51020201 4PP4120-1047P1 1050/2350/2450 PLATE: GROUND (SL) 51020301 4PP4120-1048P1...
  • Page 320 #%SECTION 7 CABLES - OKIFAX 1050 OKIFAX 1050...
  • Page 321 #%SECTION 7 CABLES - OKIFAX 2350/2450 OKIFAX 2350/2450 Section 7: Cables Illustratio OKIFAX Description Okidata Part Number Part Number 1050/2350/2450 CABLE: OPE-CONTROL 56632501 4YS4111-3440P1 1050/2350/2450 SPEAKER 57001701 4YB4120-1026P1 2350/2450 CABLE: 2ND TRAY 56632801 3YS4111-3527P1 CONNECTOR 1050/2350/2450 CABLE: SCAN-CONTROL 56632601 4YS1111-3441P1 1050/2350/2450 CABLE: ADF SENS-CONTROL 56632701 4YS1111-3442P1...
  • Page 322 Section 8: Packaging Section 8: Packaging Illustratio OKIFAX Description Okidata Part Number Part Number 1050/2350/2450 BOX: SPARES KRAFT 53552208 1050/2350/2450 FOAM: PACKAGING (TOP) 53581601 1050/2350/2450 FOAM: PACKAGING (BOT. L) 53581602 1050/2350/2450 FOAM: PACKAGING (BOT. R) 53581603...
  • Page 323 Chapter 9 PREFACE PREFACE This Manual is intended for maintenance personnel and describes the field maintenance methods for High Capacity Second Paper Feeder option of OKIFAX 2350/2450 Series Plain Paper Facsimile Systems.
  • Page 324 9.1 Outline 9.1 Outline 9.1.1 Functions The OKIFAX is mounted on top of this High Capacity Second Paper Feeder. The High Capacity Second Paper Feeder supplies paper automatically through the operation of pulse motor (hopping), which is driven by signals sent from the printer. The main functions are the followings: Paper that can be used: Paper Type Standard paper: Xerox 4200 (20-lb) Special paper: OHP sheets (for PPC), Label sheets (PPC sheets);...
  • Page 325 #9.2 Mechanism Description 9.2 Mechanism Description 9.2.1 General Mechanism The High Capacity Second Paper Feeder feeds the paper into the printer by receiving the signal from the OKIFAX unit, which drives the pulse motor inside the High Capacity Second Paper Feeder, and this motion is transmitted to rotate the one-way clutch of the hopping frame assembly.
  • Page 326 9.3 PARTS REPLACEMENT 9.3 PARTS REPLACEMENT This section covers the procedures for the disassembly, reassembly and installations in the field. This section describes the disassembly procedures, and for reassembly procedures, basically proceed with the disassembly procedures in the reverse order. 9.3.1 Precautions Concerning Parts Replacement Use good anti-static precautions.
  • Page 327 #9.3.2 Parts Layout 9.3.2 Parts Layout This section describes the layout of the main components. Fig. 3-1...
  • Page 328 9.3.3 Parts Replacement Methods 9.3.3 Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassem-bly order diagram below.
  • Page 329 #3.3.1. Pulse Motor (Hopping) 3.3.1. Pulse Motor (Hopping) 1) Turn the OKIFAX power switch off, pull out the AC cord from the outlet. Remove the OKIFAX from the High Capacity Second Paper Feeder. 2) Take the paper cassette assy 1 out of High Capacity Second Paper Feeder. 3) Remove six screws 2 and remove the upper plate 3.
  • Page 330 #3.3.2. TQSB-PCB 3.3.2. TQSB-PCB 1) Remove the pulse motor (see 3.3.1). 2) Remove the connector O from the TQSB-PCB P. 3) Remove the screw Q and remove the TQSB-PCB P. Note : Refer to Detall A in the previous page. 3.3.3.
  • Page 331 9.4 Troubleshooting 9.4 Troubleshooting 9.4.1 Precautions Prior to the Troubleshooting Go through the basic checking items provided in the prior sections of this Handbook. Obtain detailed information concerning the problem from the user. Go through checking in the conditions similar to that in which the problem occurred.
  • Page 332 Paper size error Notifies of incorrect • Check the paper in the size paper feeding High from High Capacity Capacity Second Paper Second Paper Feeder. Also check to Feeder. see if there was a feeding of multiple sheets. Carry out the recovery printing by opening and closing the cover, and turn the error...
  • Page 334 9.5 Connection Diagram 9.5 Connection Diagram 9.5.1 Interconnection Diagram...
  • Page 335 9.5.2 PCB Layout 9.5.2 PCB Layout TQSB-PCB...
  • Page 336 #9.6 Parts List 9.6 Parts List Figure 6-1 High Capacity Second Paper Feeder Table 6-1 High Capacity Paper Feeder Description OKI-J Part No. ODA PArt Remark Hopping roller assy 3PA4122-1367G1 50409501 One-way clutch gear 4PB4122-1382P1 51401101 Pulse motor 3PB4122-1399P1 56512201...

This manual is also suitable for:

Okifax 2350Okifax 2450

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