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Oki Microline 182 Maintenance Manual

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MICROLINE 182/183 PRINTER

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Summary of Contents for Oki Microline 182

  • Page 1 MICROLINE 182/183 PRINTER MAINTENANCE MANUAL...
  • Page 2 PREFACE This maintenance manual describes field maintenance of the Microline 182/l 83 for maintenance engineers. For performance specifications and operating procedures, refer to the “User’s Manual”.
  • Page 3 CONTENTS Page l - l CONFIGURATION ............l - l Standard Printer Configuration .
  • Page 4 RECORDS OF CHANGES Description of Page affected Printer/PCB Serial No. Part No. changes i-24, 3-25,3-28, F;“;c;t;entj M-52033; i-9, 8-10, (Addition) ISSUE M-5, AA-IO, Descriptions of ML183 are added. ‘reface, l-1, (Replacement) i-2, 3-34 i-2 to 8-8 Circuit, diagram (Rev. 7) of SLMC-2 ‘-27 to 7-33 circuit board is added.
  • Page 5 (con.) Description of Part No. Printer/PCB Serial No. \E-1 (Deletion) Renewal of issue (Replacement)
  • Page 6 1. CONFIGURATION...
  • Page 7 1. CONFIGURATION Standard Printer Configuration The standard configuration of the ML 182/l 83 is as fOllOws: tractor feed unit Control board Figure l-1 Printer Configuration l - l...
  • Page 8 1.2 Options (only ML1 82) Roll paper stand (only ML182)
  • Page 9 Super-speed RS232-C serial interface board, Super-speed RS422-A serial interface board High-speed RS422-A serial interface board l - 3...
  • Page 10 1.1 Standard Printer Configuration The standard configuration of the ML 182/l 83 is as follows: Figure l-1 Printer Configuration 1 -,4...
  • Page 11 1.2 Options Tractor f ee d unit with acoustic cover and, access cover. with paper row detection micro switch...
  • Page 12 2. MAINTENANCE...

  • Page 13: Maintenance Tools

    2. MAINTENANCE TOOLS The tools in table 2-l are necessary for replacing printed-circuit boards and unit parts. For other maintenance procedures, different tools may be necessary. Table 2-l Maintenance Tools Remarks Quantity Purpose Tool Phillips screwdriver No. l-100 Phillips screwdriver No.

  • Page 15: Parts Replacement

    PARTS REPLACEMENT Precautions for Parts Replacement Be sure to turn OFF the AC POWER switch and remove the AC,input plug from the AC receptacle before disassembly or reassem’bly. Be careful not to remove parts unless, necessary. Disassembly should be the minimum necessary.
  • Page 16 Disassembly and Reassembly .Procedures 3.2.1 Upper cover Turn OFF the AC POWER switch, and remove AC cable @ from the outlet, and then remove interface cable @ remove paper. Remove acoustic cover and paper separator (if installed). Remove tractor feed unit @ by depressing lock lever @ and tilting backward (if it is installed).
  • Page 18 3.2.2 Control board Remove the upper cover (see 3.2.1). Remove serial interface board by removing two screws locating on both sides of interface connector. Remove interface board upward (if installed). Remove transformer connector @ from the, control board @ Remove three screws @ and two screws @. Remove control board @ by !ifting upward (see Notes below).
  • Page 20 3.2.3 Transformer assembly Remove the upper cover (see 3.2.1). Remove connector @ from the control board. Remove ground strap screw @ Remove two screws 0. Remove transformer assembly@ with power PCB@ and AC cord receptacle @ by lifting upward. For reassembly, reverse the disassembly procedure. 3 - 6...
  • Page 21 View A 3 - 7...
  • Page 22 3.2.4 Power supply board Remove the upper cover (see 3.2.1). Remove the transformer asssembly (see 3.2.3). Remove power supply board @ from transformer @ by pulling off connection pins For reassembly, reverse the disassembly procedure. Note: When attaching, set the powersupplyboard @ along guide @ before assembling. 3 - 8...
  • Page 24 3.2.5 Operation board Remove the upper cover (see 3.2.1). Disengage two tabs 0. Remove connector @ connecting the connection board and operation board. Remove operation board 0. For reassembly, reverse the disassembly procedure. Note: Be careful not to damage the cab/e connecting the switch and the connector. 3 - 1 0...
  • Page 25 3 - 1 1...
  • Page 26 Print head 3.2.6 AC POWER Turn switch, and remove AC cable @ fiom the outlet. Caution: Print head may be hot after printing. Remove access cover @ by lifting up rear edge of cover. Remove ribbon cartridge @ by gently squeezing both sides ‘@ 2nd lifting up. Raise head clamp @ by swinging right tab up (see figure).
  • Page 27 3 - 1 3...
  • Page 28 3.2.7 Ribbon feed gear assembly Remove the upper cover (see 3.2.1). Remove ribbon cartridge @ by lifting both sides@ Disengage the two front tabs @ and two rear tabs@ (total of four tabs). Then lift upward by inserting small flat screwdriver to slots. Remove ribbon feed gear assembly @.
  • Page 29 3 - 1.5...
  • Page 30 3.2.8 Space motor assembly Remove the upper cover (see 3.2.1). Remove the print head (see 3.2.6). Remove the ribbon feed gear assembly (see 3.2.7). Remove connector 0, and observe concave surface. Remove three screws 0. Remove space motor assembly 0. For reassembly, reverse the disassembly procedure.
  • Page 32 rack Space Remove the upper, cover (see 3.2.1). Remove the print head (see 3.2.6). Remove the ribbon feed gear assembly (see 3.2.7). Remove the space motor assembly (see 3.2.8). (5) Remove spring 0. (6) Disengage tab 0. Remove by inserting a minus screwdriver between space rack @and base frame @ and gently pushing the space rack @ up.
  • Page 33 3 - 1 9...
  • Page 34 32.10 Carriage cable Remove the upper cover (see 3.2.1). Remove the print head (see 3.2.6). Remove the ribbon feed gear assembly (see 3.2.7). Remove the space motor assembly (see 3.2.8). Remove the space rack (see 3.2.9). Unlock the two tabs @ and remove cord clamp 0. Remove contact rubber 0.
  • Page 35 3 - 21...
  • Page 36 3.2.11 Printer mechanism Remove the upper cover (see 3.2.1). Remove connector @ connecting the control board @ and transformer assembly@. Remove ground ‘strap screw 0. Remove the operation board (see 3.2.5). Remove four screws @) and washers @. Remove three screws@, two screws 0, and control board @. 3 - 22...
  • Page 38 3.2.12 LF motor assembly Remove the upper cover (see 3.2.1). Remove the printer mechanism. (See 3.2.11 step 7. The control board need not be removed.) Remove two screws 0. Remove LF motor assembly 0. For reassembly, reverse the disassembly procedure. Notes: not touch the it and make sure that if is clean.

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Microline 183

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