Citizen iDP3550 Service Manual
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Citizen iDP3550 Service Manual

Dot matrix printer
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Service Manual

DOT MATRIX PRINTER
MODEL
iDP3550/3551
Rev. 3.00 Revised on Jan. 25, 2002

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Summary of Contents for Citizen iDP3550

  • Page 1: Service Manual

    Service Manual DOT MATRIX PRINTER MODEL iDP3550/3551 Rev. 3.00 Revised on Jan. 25, 2002...
  • Page 2 Service Manual REVISION Rev.No. Date Comment Rev.1.00 May 10 1999 Newly issued Rev.2.00 Sep. 14 2000 Modified the Control Board (PF driver IC etc) Rev.2.01 Sep. 19 2001 Error correction Rev.3.00 Jan. 25 2002 Changed page17, page21, page27, page28...
  • Page 3 Service Manual INTRODUCTION This manual describes the disassembly, reassembly, and maintenance procedures of the dot impact printer iDP3550/3551. It is intended for field maintenance men. FEATURES This is a small-size dot impact printer developed for various data communication terminals, POS terminals, kitchen-use printers, bank card, terminals, and so on.

  • Page 4: Table Of Contents

    Service Manual CONTENTS HANDLING AND MAINTENANCE OF PRINTER..................1 SPECIFICATIONS ............................2 Basic Specifications ........................... 2 DISASSEMBLY AND REASSEMBLY ......................3 Disassembly Procedure..........................3 Reassembly Procedure..........................10 TROUBLESHOOTING............................11 Troubleshooting Procedure ........................11 Troubleshooting Guide ..........................12 SERVICE PARTS LIST........................... 17 Parts List for Mechanism.........................

  • Page 5: Handling And Maintenance Of Printer

    Service Manual 1. HANDLING AND MAINTENANCE OF PRINTER See the User’s Manual coming with the printer body. CITIZEN...

  • Page 6: Specifications

    2. SPECIFICATIONS Basic Specifications Model iDP3550 iDP3551 Item Printer mechanism Character type: DP-654 series/Graphic type: DP-657series (CITIZEN) Serial dot impact method (Bidirectional print), 2-pass graphic (Unidirectional Print method print) Print width Character type: 63.6 mm/Graphic type: 58.7 mm Print head...

  • Page 7: Disassembly And Reassembly

    Service Manual 3. DISASSEMBLY AND REASSEMBLY Disassembly Procedure 1. Removing the Top Cabinet (1) Remove the printer cover. (2) Remove the four screws (M3 12) and detach the top cabinet by gently lifting it upward Top Cabinet CITIZEN...
  • Page 8 Service Manual 2. Removing the Chassis Assembly (1) Remove the top cabinet. (2) Remove the one screw (M3 6) from the bottom and gently lift the chassis assembly upward. Pull out the power cable from the bottom cabinet. 3. Removing the Printer Mechanism (1) Remove the top cabinet.
  • Page 9 Service Manual 4. Removing the Power Board (1) Remove the chassis assembly and then deta ch the control board. (2) Remove the strain relief bushing of the power cable from the chassis with a special tool, round nose pliers, or a similar tool.
  • Page 10 Service Manual 5. Removing the PE Sensor Assembly (1) Remove the chassis assembly and the printer mechanism. (2) Disconnect the one connector from the control board. (3) Peel off the vinyl tape from the chassis. (4) Slide the PE sensor assembly in the direction...
  • Page 11 Service Manual 6. Removing the Auto Cutter AC-134 (1) Remove the top cabinet. (2) Cut the cable tie to set the cable of the auto cutter AC-134, that is fastened to the printer mecha- nism, free. (3) Disconnect the one connector from the control board.
  • Page 12 Service Manual 7. Removing the Paper Cutter (iDP3550) (1) While widening both sides of the printer cover as shown by the arrows, push the paper cutter toward you to disengage it from the two claws. Claw Printer Cover Paper Cutter...
  • Page 13 Service Manual 8. Assembling the Auto Cutter AC-134 (1) Notes See the User's Manual of AC-130 Auto Cutter for specifications and detailed operations. The printer mechanisms that can mount the auto cutter AC-134 are as follows. • DP-61*, DP-62*, and DP-65* (2) Packing List (See Fig.

  • Page 14: Reassembly Procedure

    Service Manual (3) Assembling the Auto Cutter (See Fig. 1) Securely insert the claws of the hook L and hook R into the square holes on the printer mecha- nism. Securely mount the cutter BK R on the auto cutter unit with the supplied screw (M2.6 6).

  • Page 15: Troubleshooting

    Service Manual 4. TROUBLESHOOTING Troubleshooting Procedure When a trouble occurs, confirm its phenomenon, locate a defective part in accordance with 4.2 Troubleshoot- ing Guide, and troubleshoot as described below. Phenomenon: Find a trouble phenomenon in this column. If there are multiple phenomena, take all the corresponding items into consideration.

  • Page 16: Troubleshooting Guide

    Service Manual Troubleshooting Guide • Power Supply Failure Phenomenon Cause Check Method Remedy No power The AC cord is not Connect the AC cord to the (POWER lamp not connected. AC outlet. illuminated) Not connected to the Connect to the terminal terminal block (For block.
  • Page 17 Service Manual • Printing failure Phenomenon Cause Check Method Remedy Faulty AC supply voltage Check whether the Use the specified AC No printing specified AC voltage is voltage. used. Faulty mounting or Check mounting and Mount the printer connection of the printer connection of the printer mechanism properly.
  • Page 18 Service Manual • Faulty carriage mechanism Phenomenon Cause Check Method Remedy Abnormal sound Faulty connection of the Check the connection of Connect the connector head connector the head connector. properly. ERROR lamp The print head does not Check for any foreign...
  • Page 19 Service Manual • Paper feed failure Phenomenon Cause Check Method Remedy Paper is not fed or fed Faulty connection of the Check connection of the Connect the connector irregularly motor connector motor connector. correctly. Defective motor Measure the supply...
  • Page 20 Service Manual • Faulty auto cutter (iDP3551 only) Phenomenon Cause Check Method Remedy Does not cut paper. Faulty connection of the Check connection of the Connect the connector cor- motor connector motor connector. rectly. Faulty AC supply voltage Check whether the speci-...

  • Page 21: Service Parts List

    Service Manual 5. SERVICE PARTS LIST Parts List for Mechanism EXPLODED VIEW Ref. No. Parts No. Description iDP3550 iDP3551 E4002-430 Chassis Vinyl Tape E6601-220 Printer Stand E4035-690 Ground Plate E40000290 PE Mechanism Assy E66201-061 Top Cabinet Assy (Ivory) E62010656...
  • Page 22 Service Manual EXPLODED VIEW Ref. No. Parts No. Description iDP3550 iDP3551 M4 6 Tapping 76G42959 Screw (with Outer-Toothed Lock Washer) 76G29560 Screw M3 12 Tapping M3 6 Tapping 76G42966 Screw (with Outer- Toothed Lock Washer) E4001-940 Power Transformer 230V...

  • Page 23: Disassembly Drawing

    Service Manual Disassembly Drawing • Disassembly Drawing-1 CITIZEN...
  • Page 24 Service Manual • Disassembly Drawing-2 CITIZEN...

  • Page 25: Parts List For Pcb Assy

    Service Manual Parts List for PCB Assy 5.3.1 Control PCB Assy 3550-01 (R)/3550-02 (P) iDP3550 iDP3551 Ref. No Parts No. Description SW1,2 76F69315 Switch SKQJLAA010 404PC-10 404PC-10 E 107-370 EPROM M27C512B E 107-350 SRAM TC55257DPL-85L E2010610 TTL IC SN74LS14AP...
  • Page 26 Service Manual iDP3550 iDP3551 Ref. No Parts No. Description C12-16,22-24 E2220-170 C. Cap. DD308-63F104Z50 26,34,38 C12,16,22 E2220-100 C. Cap. DD106-63F103Z50 E2220-100 C. Cap. DD106-63F103Z50 E2220-210 C. Cap. DD804-63B222Z50 E2220-120 C. Cap. DD104-63B471K50 E2010-950 Cap. FS0H-473Z C24, 26-28 E2220-200 C. Cap.
  • Page 27 Service Manual iDP3550 iDP3551 Ref. No Parts No. Description R14,26 Resistor RD25M10-330KΩJ Resistor 1.5Ω-1W Resistor 1.5Ω-1W Resistor RD25M10-4.7KΩJ R24,25 Resistor RD25M10-10KΩJ R25,26 Resistor RD25M10-10KΩJ Resistor RD25M10-330KΩ LB1-18,23-26 E4009-510 Fe. Beads BL02RN1-A62 LB19-22 E4009-510 Fe. Beads BL02RN1-A62 LB27 E4009-510 Fe. Beads...
  • Page 28 Service Manual iDP3550 iDP3551 Ref. No Parts No. Description Screw M3 10 ZNP (C) Screw M3 8 (B-506) M3 ZNP (C) E8035-010 Insu-Lock Tie T18S (IC2) ROM Label PDL-65 CITIZEN...

  • Page 29: Power Pcb Assy 3535-03

    Service Manual 5.3.2 Power PCB Assy 3535-03 Ref. No Parts No. Description E4001-945 Transformer 25-0289 120V E4001-940 Transformer 25-0290 230V E6100-675 Power Cord 25-0184 120V E6100-690 Power Cord 25-0185 230V E4009-390 Noise Filter PLAA3221R0D01 E390-150 Regulator M5231TL µPC2405AHF E390-160...
  • Page 30 Service Manual Ref. No Parts No. Description φ 10mm L=10mm Adhesive Tape φ 0.7mm L=18mm Jumper Screw M3 8 M3 8 B Tight Znp(c) Screw M3 8 M3 8 B Tight (B-567) FH1,3 E4006-240 Fuse Holder F218P 3535-03 E6101-115...

  • Page 31: Parts Layout Drawing

    Service Manual 5.4 Parts Layout Drawing 5.4.1 Control PCB Assy 3550-01 (Serial Interface D-sub 25) ´ SEL2410E 00.08 AG1094V-O ´ SKQJLAA010 3550-01 MADE IN JAPAN LED2 LED1 HD74HC00P TC55257DPL-85L 5.5V 0.047F M27C512B LB23 LB22 (With IC Socket) LB24 M51953BL 3.3K...

  • Page 32: Control Pcb Assy 3550-02 (Parallel Interface)

    Service Manual 5.4.2 Control PCB Assy 3550-02 (Parallel Interface) ´ SEL2410E ´ 00.08 AG1094V-0 SKQJLAA010 3550-02 MADE IN JAPAN LED2 LED1 HD74HC00P TC55257DPL-85L 5.5V 0.047F M27C512B LB22 (With IC Socket) LB24 M51953BL IC10 SN74LS14AP HD74LS04AP B5P-SHF-1AA M5-1-103J M5-1-332J TA8248K 7 7 7 3.3K...

  • Page 33: Power Pcb Assy 3535-03 (120V)

    Service Manual 5.4.3 Power PCB Assy 3535-03 (120V) CITIZEN...

  • Page 34: Power Pcb Assy 3535-03 (230V)

    Service Manual 5.4.4 Power PCB Assy 3535-03 (230V) CITIZEN...

  • Page 35: Drawing

    Service Manual 6. DRAWING The following lists the reference drawings for maintenance, and so on. • Block diagram • Circuit diagrams for the following circuits • Control PCB Assy (Serial Interface) • Control PCB Assy (Parallel Interface) • Power PCB Assy...

  • Page 36: Block Diagram

    Service Manual Block Diagram OSC16MHz Parallel (CENTRONICS Compliant) Winder Winder Serial Control Interface (RS-232C Com- (Option) pliant) Auto Cutter Paper Control Cutter Near-end (iDP3551 only) Control Drawer Drawer Control Operation Panel DIP Switch Print Head Driver Printer DC Motor/...

  • Page 37: Circuit Diagram

    '00.07.28 C-0854 (SERIAL) PASS CON : 104 ´ 5 ´ 2 '00.06.29 I/F-IC change C-0840 IC1=CP1 IC9=CP4 To version 2 due to circuit board change C-0832 iDP3550/3551(3550-01 B) IC2=CP2 IC10=CP5 IC9C IC9D IC11A IC11B IC11C MARK DATE REVISION REV.No. IC4=CP3 IC11=CP6...

  • Page 38: Control Pcb Assy 3550-02 (Parallel Interface)

    PASS CON : 104 ´ 9 ´ 1 '00.07.25 transistor change C-0854 IC1=CP1 IC8=CP5 (PARALLEL) To version 2 due to circuit board change C-0832 IC2=CP2 IC9=CP6 MARK DATE REVISION REV.No. IC4=CP3 IC10=CP7 IC9C IC9D iDP3550/3551(3550-02 B) IC11D IC7=CP4 IC11=CP8 HC00AP HC00AP 3SEC-1026 IC12=CP9 LS04AP...

  • Page 39: Power Pcb Assy 3535-03 (120V)

    Service Manual 6.2.3 Power PCB Assy 3535-03 (120V) CITIZEN...

  • Page 40: Power Pcb Assy 3535-03 (230V)

    Service Manual 6.2.4 Power PCB Assy 3535-03 (230V) CITIZEN...

  • Page 41: Outer Dimension

    Service Manual 7. OUTER DIMENSION iDP3550 Unit: mm CITIZEN...

  • Page 42: Idp3551

    Service Manual iDP3551 : mm Unit CITIZEN...

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