CITIZEN Service Manual Model: iDP3221 Line Thermal Printer Rev. 1.00 Newly issued on May 10, 1999 Jap Japan CBM Corporation Information Systems Div.
iDP-3221 Service Manual INTRODUCTION This manual describes the disassembly, reassembly, and maintenance procedures of the line thermal printer iDP3221. It is intended for field maintenance men. FEATURES This is a small line thermal printer developed to be used for various data communication terminals, POS terminals, kitchen printer, and so on. With its abundant features, it can be widely used for various types of applications.
iDP-3221 Service Manual CONTENTS 1. HANDLING AND MAINTENANCE OF PRINTER ..........................................................................5 2. SPECIFICATIONS ...............................................................................................................................6 2.1 3. MECHANISMS AND OPERATING PRINCIPLES ..........................................................................7 3.1 Power Transmission and Paper Feed Mechanism............................................
iDP-3221 Service Manual 8. 7.2.1 Control PCB Assy 3221-01 (Serial Interface D-sub 25) .............................................36 7.2.2 Control PCB Assy 3221-02 (Parallel Interface)..........................................................37 OUTER DIMENSION ........................................................................................................................38 ¨ For the auto cutter unit (ACS-231), see the separate Service Manual.
iDP-3221 Service Manual 1. HANDLING AND MAINTENANCE OF PRINTER See the User’s Manual coming with the printer body.
iDP-3221 Service Manual 2. SPECI ECIFICATIONS 2.1 Basic Specifications Model Item Printing system Printing width Dot density Printing speed Printing columns Printing size Line pitch Character types Bar code type Paper Interface Input buffer Supply DC voltage Power consumption AC adapter Weight Type iDP3221–RF120 iDP3221–PF120 iDP3221–RF230 iDP3221–PF230 Line thermal dot printing 72.192 mm/512 dots Width: 0.141 mm, Length: 180 DPI (0.141 mm) 63.45 mm/sec.
iDP-3221 Service Manual 3. MECHANISMS AND OPERATING PRINCIPLES The following describes the basic mechanisms of the printer and how the printer operates, for the following blocks. • Power transmission and paper feed mechanism • Platen roller attaching/detaching mechanism • Sensor mechanism • Print head mechanism 3.1 Power Transmission and Paper Feed Mechanism As the motor runs, its force is conveyed via the motor gear (mounted on the motor shaft) to the platen gear, which rotates the platen roller.
iDP-3221 Service Manual 3.2 Platen Rolle ller Atta ttaching/De /Detaching Mechanism The platen roller in the paper feed mechanism is removable from the printer. The platen roller is built as a unit consisting of the platen gear, platen bushes, and platen lever L and R. When this unit is set on the U-shaped brackets of the chassis, the platen gear engages with the motor gear.
iDP-3221 Service Manual 3.3.2 Paper Near-end Sensor This sensor detects that the paper is nearing the roll end. When the remaining quantity of paper becomes small (about 50 to 200 cm for the designated paper), the sensor detects it because the roll surface comes off the sensor. The remaining quantity of paper depends on the quality of the paper or the material of the core. It is not possible to adjust the near-end point. Paper Platen Roller Paper Near-end Sensor Feed Rollers Thermal Head 3.
iDP-3221 Service Manual 3.4.2 Print Data an and Print Positions The 512-bit print data (numbers 1 - 512) transferred from DATA IN (DI) is printed at the positions shown in the figure below.
iDP-3221 Service Manual 4. DISASSE SSEMBLY AND REASS REASSE SSEMBLY For maintenance operations, note the following: Notes: (1) Do not disassemble/reassemble or adjust the machine, if it functions properly. Particularly, do not loosen screws on any component, unless necessary. (2) After completing an inspection and before turning on the power, be sure to check that there is no abnormality. (3) Never try to print without paper installed in the printer.
iDP-3221 Service Manual 2. Removing the Upper Cover (1) Remove the head springs from the hooks and detach the platen roller. (2) Remove the two screws (M3´8). (3) Lift the back of the upper cover to open it. With this condition, insert a flat-blade screwdriver into the slit at the front of the printer (between the chassis and upper cover ¬and -) to unlock the claws.
iDP-3221 Service Manual 3. Removing the Black Mark Sensor (Option) from the Upper Cover (1) Remove the upper cover. (2) Push the claw on the bottom of the upper cover to bent it and remove the one end of the PC board. (3) Unhook the cable of the PC board from the upper cover. (4) Gently disengage the PC board from the two projections of the upper cover to remove it. In this case, pay special attention so as not to break the projections.
iDP-3221 Service Manual 5. Disassembling the Platen Roller Unit (1) Disengage the E-ring on the platen gear side. (2) Remove the platen gear, platen bush, platen lever R, and E-ring in that order. (When assembling, align the notch of the platen bush with the projection of the platen lever R.) (3) Disengage the other side of the E-ring and then remove the platen bush, platen lever L, and E-ring. Platen Gear Platen Lever R D-Cut E-Ring Platen Lever L Platen Bush Platen Bush E-Ring Platen Roller 6.
iDP-3221 Service Manual 7. Removing the bottom plate from the chassis (1) Remove the two screws (M3´8). (2) Slide the bottom plate in the direction ¬ a little to remove it from the power connector housing. (3) Lift the bottom plate while turning it in the direction -. Then, the bottom plate comes off the chassis. Bottom Plate Connecting Sections 8. Removing the Auto Cutter ACS-231 from the Chassis (1) Remove the bottom plate. (2) Remove the upper cover.
iDP-3221 Service Manual 9. Removing the Control Board from the Chassis (1) Remove the bottom plate. (2) Remove the upper cover. (If the optional black mark sensor or paper holder is not installed, remove only the platen roller as it is unnecessary to remove the upper cover.) (3) Remove the two screws (M3´16) and two screws (M3´8). (4) Remove the control board by lifting it upward. In this case, do not deform the thermal head, paper near-end sensor, power switch, etc. or make scratch on them.
iDP-3221 Service Manual 10. Removing the Thermal Head from the Control Board (1) Insert a flat-blade screwdriver between the heat sink of the thermal head and head BK (insert it into the place shown by the arrow) and, with weak force, lift the thermal head from the connector until it floats from the connector a little. (2) Lift the other end in the same way. (3) Without touching the thermal elements, remove the thermal head from the connector by lifting it upward.
iDP-3221 Service Manual 12. Removing the Head Springs from the Chassis (1) Remove the upper cover. (2) Turn the head springs to set them upright and then remove them by lowering them. Head Springs 4.2 Reassembly Procedure Reassemble each part in the reverse order of the disassembly procedure described in Section 4.1.
iDP-3221 Service Manual 5. TROUBLESHOOT OOTING 5.1 Troubleshoot ooting Procedure When a trouble occurs, confirm its phenomenon, locate a defective part in accordance with 5.2 Troubleshooting 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. This allows you to specify a hidden defective part. · Cause: Lists as many possible causes as possible.
iDP-3221 Service Manual · Printing failure Phenomenon No printing Paint printout Badly blurred printout Cause Check Method Remedy Faulty DC output voltage from the AC adapter Faulty mounting or connection of the control PCB assy Faulty mounting of the platen roller Check whether the specified AC adapter is used. Check mounting and connection of the control PCB assy. Check mounting condition of the platen roller. Check any deformation or bending of the head spring. Use the specified AC adapter.
iDP-3221 Service Manual · Paper feed eed failu ilure Phenomenon Cause Check Method Paper is not fed or Faulty connection of the fed irregularly motor connector Faulty DC output voltage from the AC adapter Faulty mounting or connection of the control PCB assy Faulty mounting of the platen roller Faulty mounting or connection of the thermal head Paper feed failure Foreign substance the gear Broken gear Check connection of the motor connector. Check whether the specified AC adapter is used.
iDP-3221 Service Manual · Faulty sensor Phenomenon Cause Check Method Does not detect Faulty paper sensor presence of paper. Replace the thermal head assy and check if the replaced one functions properly. Check whether the ERROR lamp flickers when paper is out. Foreign substance, etc. Check for any foreign caught by the sensor substance. Does not detect Faulty paper near-end paper near-end sensor status.
iDP-3221 Service Manual 6. SERVICE PARTS LIST 6.1 Parts List for Me Mechanism EXPLODED VIEW 1/2 Ref. No. Parts No.
iDP-3221 Service Manual EXPLODED VIEW Ref. No. Parts No.
iDP-3221 Service Manual 6.2 Disasse ssembly Drawing · Disasse ssembly Drawing-1 See "Disassembly Drawing-2 on the next page.
iDP-3221 Service Manual · Disasse ssembly Drawing-2 – 26 – CITIZEN
iDP-3221 Service Manual 6.3 Parts List for Control PCB As Assy 6.3.1 Control PCB Assy ssy 32213221-01 (Serial Interface D-sub 25) 25) Ref. No Parts No.
iDP-3221 Service Manual 2/3 Ref. No Parts No. Description iDP3221 R iDP3221 P 7 6 2 1 7 6 2 3 C21 C102-108 C110-115 C116,117 CP7-9 E2110-880 E2110-885 E2110-905 E2110-900 E2110-870 C. Cap C. Cap. C. Cap. C. Cap. C. Cap. GRM40B102K50PT GRM40B331K50PT GRM40CH101J50PT GRM40B471K50PT GRM40F104Z50PT RA1,4,9 RA3 RA5 RA6,7,8 E3900-590 E3500-600 E3900-590 E3500-600 Re. Array Re. Array Re. Array Re.
iDP-3221 Service Manual Ref. No Parts No. Description iDP3221 R CN7 CN7 CN7 CN9,10 E48000880 E48000875 E48000830 E4800-940 Connector Connector Connector Connector DS1 DS2 E5103-520 E5103-510 DIP SW. DIP SW. KSD10H KSD08H 1 1 1 FB1,2 E4009-280 Fe. Beads BL02RN2-R62 2 2 F1 F2 E4005-795 E4005-770 Fuse Fuse MS3 MQ1.5 1 1 1 1 X1 E 501-360 X'tal 1 1 L1,2,14-21 L3-13, 22-25 28,33-39 101-105 107, 108 L26,27,29-31 106 L32 L32 L40-54 E4009-480 E4009-490 Fe. Beads Fe.
iDP-3221 Service Manual 6.4 Parts Layout Drawing 6.4.
iDP-3221 Service Manual Keytop · Solder Side – 31 – CITIZEN
iDP-3221 Service Manual 6.4.
iDP-3221 Service Manual Keytop · Solder Side – 33 – CITIZEN
iDP-3221 Service Manual 7. DRAWING The following lists the reference drawings for maintenance, and so on.
iDP-3221 Service Manual 7.
iDP-3221 Service Manual 7.2 Circuit Diagram 7.2.
iDP-3221 Service Manual 7.2.
iDP-3221 Service Manual 8.
iDP-3221 Service Manual · AC Adapter (31A 31AD) Unit: mm – 39 – CITIZEN
