Citizen COMPACT CT-S310II Service Manual
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Citizen COMPACT CT-S310II Service Manual

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Service Manual
COMPACT LINE THERMAL PRINTER
CT-S310II
Revision 1.00 2011.4.25

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Summary of Contents for Citizen COMPACT CT-S310II

  • Page 1 Service Manual COMPACT LINE THERMAL PRINTER CT-S310II Revision 1.00 2011.4.25...
  • Page 3 CT-S310II Series Service Manual REVISIONS Rev No. Date Page Comment 1.00 2011/4/25 Newly issued  CITIZEN is a registered trademark of CITIZEN HOLDINGS CO., LTD., Japan. CITIZEN es una marca registrada de Citizen Holdings Co., Japón. - 1 -...

  • Page 4: Table Of Contents

    CT-S310II Series Service Manual CONTENTS INTRODUCTION .....................4 DISASSEMBLY AND REASSEMBLY............4 1-1. Tools Used .........................4 1-2. Disassembly Procedure .....................5 1-2-1. Disassembling the Printer..................5 1-2-2. Disassembling “UNIT, MECHANISM” ..............15 1-3. Assembly Procedure......................22 1-4. Oiling..........................23 TROUBLESHOOTING ................25 2-1. Error Details and LED Indications ..................25 2-2.
  • Page 5 CT-S310II Series Service Manual SUPPLEMENTARY INFORMATION ............53 5-1. Self-printing........................53 5-2. Hex-dump Mode ......................55 5-3. Memory Switch Setting Mode ..................56 5-4. Updating the Firmware.....................58 - 3 -...

  • Page 6: Introduction

    CT-S310II Series Service Manual INTRODUCTION This manual describes the disassembly, reassembly, and maintenance procedures of CT-S310II Series. 1. DISASSEMBL Y AND REASSEMBLY Note the following items when performing maintenance of the printer.  Do not disassemble, reassemble, or adjust the printer unnecessarily when the printer operation is satisfactory.

  • Page 7: Disassembly Procedure

    CT-S310II Series Service Manual 1-2. Disassembly Procedure 1-2-1. Disassembling the Printer Disassembling “COVER, FRONT-03” Put your fingers into the indentation on the front and raise “COVER, FRONT-03” to remove it. <Precaution at disassembly / reassembly> Remove the cover being careful not to touch the manual cutter blade.
  • Page 8 CT-S310II Series Service Manual Remove two “SCREW, BHT (PT), M3.0  10” and remove “HOLDER, PLATEN-03” from “COVER, TOP-03”. HOLDER, PLATEN-03 Bosses SCREW, BHT (PT), M3.0  10 <Precaution at reassembly> When reassembling “HOLDER, PLATEN-03”, align the holes on “HOLDER, PLATEN-03” with the bosses at the right and left of “COVER, TOP-03”.
  • Page 9 CT-S310II Series Service Manual Remove “E-RING, 4” from the right side of “SA, PLATEN-03”. E-RING, 4 Move “BUSHING, PLATEN” on the right side of the shaft of “SA, PLATEN-03” inwardly, then move “SA, PLATEN-03” to the right. (Together with “BUSHING, PLATEN” on the left) Raise the gear side of “SA, PLATEN-03”...
  • Page 10 CT-S310II Series Service Manual 4. Disassembling “CASE-03” Pull the right and left panels of “CASE-03” at the bottom center outwardly. (Be sure to disengage the lugs at the front and rear from “FRAME, BOTTOM-03”.) Fastening lugs Remove “CASE-03” while keeping the lugs clear of “FRAME, BOTTOM-03”.
  • Page 11 CT-S310II Series Service Manual Disassembling “FRAME, BOTTOM-03” Remove two “SCREW, BHT (ST), M3.0  6” that fasten “FRAME, BOTTOM-03” and “FRAME, MAIN-03”. SCREW, BHT (ST), M3.0  6 Disconnect connectors from “SA, MAIN PCB”. HEAD MOTOR AUTO CUTTER COVER OPEN SENSOR (TOP COVER) COVER OPEN SENSOR (FRONT) J10: PAPER SENSOR...
  • Page 12 CT-S310II Series Service Manual Disconnect the power connector (J11) from “SA, MAIN PCB”. Push the rear of “FRAME, BOTTOM-03” outwardly and raise “FRAME, MIDDLE-03”. FRAME, MIDDLE-03 Before removing “FRAME, MIDDLE-03”, remove the power cable from the notch. When mounting it, align the hole on the front of “FRAME, MIDDLE-03”...
  • Page 13 CT-S310II Series Service Manual Remove “SCREW, BHT (ST), M3.0  6” that fastens “FRAME, BOTTOM-03” and “PLATE, IF-03”. Remove two “LOCK SCREW” from the right and left of the serial connector. Turn “PLATE, IF-03” toward you and pull it out upwardly. Remove three “SCREW, TP (ST), M3.0 ...
  • Page 14 CT-S310II Series Service Manual Remove “SCREW, PH (SW), M4.0  6” from “FRAME, BOTTOM-03” and disconnect the frame ground cable. Remove three “SCREW, TP (ST), M3.0  5” that fasten “FRAME, BOTTOM-03” and “PWB (MAIN_PCB30)”. SCREW, PH (SW), M4.0  6 PWB (MAIN_PCB30) SCREW, TP (ST), M3.0 ...
  • Page 15 CT-S310II Series Service Manual Disassembling “SA, THERMAL HEAD-03” Hold the right and left side of “HOLDER, HEAD SPRING” and push it toward the “HEAD” side to disengage the hooks on the right and left, and pull it out upwardly. Hooks HOLDER, HEAD SPRING <Precaution at reassembly>...
  • Page 16 CT-S310II Series Service Manual Remove “SLIDE, HEAD SPRING-03” and “CABLE, HEAD FFC” from “SA, THERMAL HEAD-03”. SLIDE, HEAD SPRING-03 Check the positions. CABLE, Be careful not to touch the HEAD FFC connector terminal. Conducting face <Precaution at reassembly> Check the mounting position of “SLIDE, HEAD SPRING-03”. Connect “CABLE, HEAD FFC”...

  • Page 17: Disassembling "Unit, Mechanism

    CT-S310II Series Service Manual 1-2-2. Disassembling “UNIT, MECHANISM” Disassembling “LEVER, INTERLOCK SENSOR-03” Detach “SPRING, LEVER INTERLOCK” from the hook at “FRAME, MAIN-03”. Remove “SHAFT, LEVER” that secures “FRAME, MAIN-03” and “LEVER, INTERLOCK SENSOR”. SHAFT, LEVER SPRING, LEVER INTERLOCK Disassembling “HOLDER, PAPER-03” Contract “SPRING, POP UP-03”...
  • Page 18 CT-S310II Series Service Manual Remove two “SCREW, NO. 0, THF (BT4-0.5) M2.0  4” that fasten “HOLDER, PAPER-03” and “SA, PE SENSOR”. Pull the right and left frames at “FRAME, MAIN-03” outwardly and pull “HOLDER, PAPER-03” upwardly until it is removed. SCREW, NO.0, THF (BT4-0.5) M2.0 ...
  • Page 19 CT-S310II Series Service Manual Remove “SCREW, PHT (ST), M3.0  6” that Remove “GEAR, REDUCTION” from “COVER, GEAR-03”. fastens “FRAME, MAIN-03” and “SA,MOTOR-03”. GEAR, REDUCTION SCREW, PHT (ST), M3.0  6 COVER, GEAR-03 UNIT, MOTOR <Precaution at reassembly> When assembling “SA, MOTOR-03”, keep the terminal section facing downward.
  • Page 20 CT-S310II Series Service Manual Remove one “SCREW, BHT (ST), M3.0  6” that fastens “LEVER R, PLATEN LOCK” and “LEVER, COVER OPEN-03”. LEVER, COVER OPEN SCREW, BHT (ST), M3.0  6 Hole for boss Holes <Precaution at reassembly> When reassembling, align the boss at “LEVER, COVER OPEN” with the hole at “LEVER R, PLATEN LOCK”. Raise the rotating shaft a little while moving down “LEVER R, PLATEN LOCK”...
  • Page 21 CT-S310II Series Service Manual Move down “LEVER L, PLATEN LOCK” and align it with the slot at “FRAME, MAIN-03” and remove it through the shaft hole. Slot Shaft LEVER L, PLATEN LOCK Disassembling “LEVER L & R, CUTTER RELEASE” Disengage “SPRING, CUTTER LEVER” from the hooks at “FRAME, MAIN-03” and “LEVER R, CUTTER RELEASE”.
  • Page 22 CT-S310II Series Service Manual Disassembling “BASE, HEAD SUPPORT-03” Remove two “SCREW, BHT (ST), M3.0  6” that fasten “BASE, HEAD SUPPORT-03” and “FRAME, MAIN-03”. SCREW, BHT (ST), M3.0  6 BASE, HEAD SUPPORT-03 Disengage “BASE, HEAD SUPPORT-03” from the boss at “FRAME, MAIN-03” and remove it from the shaft.((1) ...
  • Page 23 CT-S310II Series Service Manual Remove “SA, PE SENSOR” from “BASE, HEAD SUPPORT-03”. Pull “BASE, HEAD SUPPORT-03” toward you while pushing the bosses at “SA, PE SENSOR”. Bosses <Precaution at disassembly / reassembly> When reassembling, insert “BASE, HEAD SUPPORT-03” into “SA, PE SENSOR”...

  • Page 24: Assembly Procedure

    CT-S310II Series Service Manual Disassembling “SA, COVER OPEN SENSOR F2” Remove one “SCREW, BHT (BT#3), M1.7  7” that fastens “SA, COVER OPEN SENSOR F2”. Detach the cables from the hooks at “FRAME, MAIN-03”. <Precaution at reassembly> Be careful not to tighten the screw excessively.

  • Page 25: Oiling

    CT-S310II Series Service Manual 1-4. Oiling Oil Used (Grease)  FLOIL G311S (Kanto Kasei)  Daphne Eponex Grease No. 2 (Idemitsu) Oiling Positions <FLOIL G311S> (1) Shaft at “COVER GEAR” Apply grease to the shaft. (2) Rotating center holes and press-formed projections at “LEVER R & L, CUTTER RELEASE”...
  • Page 26 CT-S310II Series Service Manual (3) Both ends of the shaft at “SA CUTTER UNIT” (projections) <Daphne Eponex Grease No. 2> Right/left cutting edges of the blade at “SA, CUTTER UNIT” (Amount of grease: 1-mm drop/point) Right and left ends of the fixed blade at “PLATE, FIXED BLADE” (Amount of grease: 1-mm drop/point) Apply grease to the portion Apply grease to the portion...

  • Page 27: Troubleshooting

    CT-S310II Series Service Manual 2. TROUBLESHOOTING Error Details and LED Indications 2-1. When an error is detected, the two LEDs indicate the error status in the following patterns. LED on the panel POWER LED (green) Lit: Power supplied Blinking: Memory check error, hex-dump mode, memory switch setting mode Not lit: Power not supplied ERROR LED (red)
  • Page 28 CT-S310II Series Service Manual (2) Cover open error (when MSW3-8 is set to OFF) Description: When the printer cover is opened during paper feed or printing, the ERROR LED blinks. The buzzer beeps. Recovery condition: Recovered when the printer cover is closed. POWER LED (green) ERROR LED (red) Blinks (long flash pattern)
  • Page 29 CT-S310II Series Service Manual (2) Cutter lock error Description: The cutter cannot be moved. An error has occurred. The buzzer beeps. Recovery condition: Recovered when the FEED switch is pressed or the DLE ENQ 1 or 2 command is given. POWER LED (green) ERROR LED (red) Blinks twice at short...
  • Page 30 CT-S310II Series Service Manual (3) High voltage error Description: The voltage supplied to the printer is abnormally high. When this error occurs, immediately turn the power off. Recovery condition: This error is not recoverable. POWER LED (green) ERROR LED (red) Blinks four times at short intervals, and blinks once at long intervals, repeatedly.
  • Page 31 CT-S310II Series Service Manual (2) Cover open Description: When the printer cover is opened in the standby status, the ERROR LED blinks. The buzzer beeps. Recovery condition: Recovered when the printer cover is closed. POWER LED (green) ERROR LED (red) Note: When the cover is opened with the paper set, the paper sensor may be activated, resulting in a paper end error.
  • Page 32 CT-S310II Series Service Manual (5) USB-linked power off status Description: When the host device connected via USB is turned off, the brightness of the POWER LED decreases. Recovery condition: Recovered when the host device is turned on, or the power switch is turned off or on.

  • Page 33: Troubleshooting Procedure

    CT-S310II Series Service Manual 2-2. T roubleshooting Procedure When a fault occurs, confirm its phenomenon, locate the problem in accordance with “2.2 Troubleshooting Guide”, and troubleshoot it as described below. Find the fault phenomenon in this column. If there are multiple phenomena, take all the applicable Phenomenon items into consideration.
  • Page 34 CT-S310II Series Service Manual ● Printing Failure Phenomenon Cause Check Method Remedies No printing The control PCB is faulty. Replace “SA, MAIN PCB”.  The thermal head connector Check the contact or Re-insert the thermal head has a bad contact or connecting condition.
  • Page 35 CT-S310II Series Service Manual ● Faulty Sensor Phenomenon Cause Check Method Remedies Paper presence or The paper sensor is faulty. Check the indication at the Replace “SA, PE SENSOR”. absence cannot be LED or buzzer when the detected. Paper near paper ends.

  • Page 36: Service Parts List

    CT-S310II Series Service Manual SERVICE PARTS LIST Remarks: All the parts used in the product are contained in “SERVICE PARTS LIST” in this Service Manual. However, note that all of them are not available with customers. When placing an order for service parts, refer to the Parts Price List published separately. If you need the Parts Price List, consult the local distributor from whom you purchased this product.
  • Page 37 CT-S310II Series Service Manual Part No. Part Name Q'ty Remarks SCREW, No. 0, PHT (BT #3), M1.7  7 E13517-070F TZ44229-0 LEVER, INTERLOCK SENSOR-03 PH22001-0 SHAFT, LEVER TZ23631-0 SPRING, LEVER INTERLOCK-03 TZ56234-0 COVER, TOP-03 White TZ56235-0 COVER, TOP BK-03 Black TZ99903-0 LABEL, PAPER CAUTION TZ44144-0...
  • Page 38 CASE, BK-03 Black TZ56238-0 PANEL, OPERATION-03 TZ54117-0 SHEET, OPE-PANE FEED-03 TZ44225-0 LEVER, FEED SW-03 SCREW, BHT (BT), M3.0  8 E17930-080F TZ54103-0 LOGO, CITIZEN TZ56236-0 COVER, FRONT-03 White TZ56237-0 COVER, FRONT BK-03 Black TZ99902-0 LABEL, CAUTION TZ44141-0 FRAME, BOTTOM-03 TZ54118-0...
  • Page 39 CT-S310II Series Service Manual Part No. Part Name Q'ty Remarks TZ66811-0 UNIT, POWER SUPPLY SCREW, TP (ST), M3  5 E11630-050F TZ44149-0 SHEET L, INSULATION-03 SCREW, FHT (ST) M3  8 E16730-080F SCREW, PHT (EXT.TW), M4.0  5 E00840-050F SCREW, PHT (ST#3 TW), M3.0  6 E16330-060F TZ59901-0 LWS-1S (CABLE, CLAMP)
  • Page 40 CT-S310II Series Service Manual List of Screws Used Part No. Part Name SCREW, PHT, M3.0  6 E00130-060F SCREW, PHT (EXT.TW), M4.0  5 E00840-050F SCREW, PHT (ST), M3.0  6 E11130-060F SCREW, TP (ST), M3  5 E11630-050F 78, 86 SCREW, NO.0, PHT (BT#3), M1.7 ...

  • Page 41: Mechanical Exploded Diagrams

    CT-S310II Series Service Manual 3-1-1. Mechanical Exploded Diagrams Exploded diagram 1 35 33 - 39 -...
  • Page 42 CT-S310II Series Service Manual Exploded diagram 2 - 40 -...
  • Page 43 CT-S310II Series Service Manual Exploded diagram 3 - 41 -...
  • Page 44 CT-S310II Series Service Manual Exploded diagram 4 74, 75 - 42 -...

  • Page 45: Parts Layout

    CT-S310II Series Service Manual 3-2. Part s Layout 3-2-1. SA, MAIN PCB 30 - 43 -...

  • Page 46: Circuit Diagrams

    CT-S310II Series Service Manual 4. CIRCUIT DIAGRAMS 4-1. MAIN 4-1-1. Main Control Board (CPU1) - 44 -...

  • Page 47: Main Control Board (Cpu2/Dac)

    CT-S310II Series Service Manual 4-1-2. Main Control Board (CPU2/DAC) - 45 -...

  • Page 48: Main Control Board (Rom)

    CT-S310II Series Service Manual 4-1-3. Main Control Board (ROM) (16M) (64M) - 46 -...

  • Page 49: Main Control Board (Ram)

    CT-S310II Series Service Manual 4-1-4. Main Control Board (RAM) - 47 -...

  • Page 50: Main Control Board (Head, Op-Panel)

    CT-S310II Series Service Manual 4-1-5. Main Control Board (HEAD, OP-PANEL) - 48 -...

  • Page 51: Main Control Board (Pf Motor, Cutter, Drawer)

    CT-S310II Series Service Manual 4-1-6. Main Control Board (PF MOTOR, CUTTER, DRAWER) - 49 -...

  • Page 52: Main Control Board (Sensor, Buzzer)

    CT-S310II Series Service Manual 4-1-7. Main Control Board (SENSOR, BUZZER) - 50 -...

  • Page 53: Main Control Board (Power)

    CT-S310II Series Service Manual 4-1-8. Main Control Board (POWER) - 51 -...

  • Page 54: Main Control Board (Rs232C I/F, Usb I/F)

    CT-S310II Series Service Manual 4-1-9. Main Control Board (RS232C I/F, USB I/F) - 52 -...

  • Page 55: Supplementary Information

    CT-S310II Series Service Manual 5. SUPPLEMENT ARY INFORMATION 5-1. Self-printing Function This function is used to check the printer setting status by printing. Starting self-printing Turn the power on while holding down the FEED switch in the print possible status to print the printer setting status on the roll paper.
  • Page 56 CT-S310II Series Service Manual Supplementary function Press the FEED switch once during self-printing to print the current memory switch settings following the self-printing. Press the FEED switch twice during self-printing to print the values on the maintenance counter following the self-printing. (The number of lines feeds, number of head power-on times, number of cutting times, and the power-on time) - 54 -...

  • Page 57: Hex-Dump Mode

    CT-S310II Series Service Manual Hex-dump Mode 5-2. This function is used to check whether the printer receives the data correctly when a problem, such as a lack or duplication in the printed data, occurs. With this function, the received data can be printed out in hexadecimal codes.

  • Page 58: Memory Switch Setting Mode

    CT-S310II Series Service Manual 5-3. Memory Switch Setting Mode Settable Memory Switches MSW1, MSW2, MSW3, MSW4, MSW5, MSW7, MSW9MSW7, MSW9, MSW10 The memory switch can be set by pressing the FEED switch and opening or closing the printer cover. For details about memory switch settings, refer to the specifications sheet or instruction manual.
  • Page 59 CT-S310II Series Service Manual Changing the setting of the memory switch When the setting change mode is selected, the setting item and its current status are printed out. The ERROR LED lights up when the Power ON Info ( Valid ) value currently selected is printed.

  • Page 60: Updating The Firmware

    CT-S310II Series Service Manual 5-4. Updating the Firmware * The following example is given assuming that the Windows printer driver has been installed on the computer and that printing operation has been checked. Store the firmware file “PC_DTxx-xxxx.ARC” in a desired folder. Select the [Tool] tab on the Properties screen of the Windows printer driver.
  • Page 61 CT-S310II Series Service Manual After a while the POWER LED at the right side of the printer starts blinking. Never turn the power off while the LED is blinking because the firmware update is in progress. The printer will be initialized and automatically restored. After the firmware is updated, perform self-printing to check that the version is correctly upgraded.

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