Casio UP-370 Service Manual
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Casio UP-370 Service Manual

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SERVICE MANUAL
UP-370
MAY. 2009
INDEX

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Summary of Contents for Casio UP-370

  • Page 1 SERVICE MANUAL UP-370 MAY. 2009 INDEX...

  • Page 2: Table Of Contents

    Overview UP-370 is the successor model to UP-360. The 25-pin interface connector has been changed to a 9-pin connector. CONTeNTS 1. SPeCiFiCATiONS ....................1 1-1. PriNTiNG SPeCiFiCATiON ................. 1 1-2. PAPer SPeCiFiCATiON ..................1 1-3. iNTerFACe SPeCiFiCATiON ................2 2. DiSASSeMBLY ....................4 3.

  • Page 3: Specifications

    SPECIFICATIONS 1111 PRINTING SPECIFICATION Printing Method Direct Line Thermal Dot Pitch 8 dot/mm Printing Speed 210 mm per second (max.) Printing Width 72 mm/576 dots Character Structure 8 x 16 (font B) 12 x 24 (font A) Printing Columns 64 columns/line 44 columns/line Character Size 1.00 x 2.00 (mm)

  • Page 4: Paper Specification

    1111 PAPER SPECIFICATION Paper Width 79.5 ±0.5 mm (3.13 ±0.02") Paper Roll Size Roll diameter: Maximum 80 mm (3.15") Take-up paper roll width: 80 +0.5/-1.0 mm (3.15 +0.02/-0.04") Specified Paper Specified thermal roll paper: NTP080-80 [Paper: TF50KS-E2D Nippon Paper Industries Co., Ltd.] Packaged roll paper: [Paper: PD160R-N (Oji Paper Mfg.
  • Page 5 111111 POWER SUPPLY CONNECTOR The connector is connected the printer to an external power source. Pin No1 Signal +24 V Shell Shell 111111 DRAWER KICK1OUT CONNECTOR The pulse specified by ESC p or DLE DC4 is output to this connector. The HOST can confirm the status of the input signal by using the DLE EOT, GS a, or GS r commands.

  • Page 6: Disassembly

    DISASSEMBLY Remove four screws at the bottom of the printer unit. Screws (S11) Remove five connectors (CN1, CN2, CN3, CN5, CN6) and the FFC (J1). Remove three screws and then remove the main PCB. Screws (S3) – 4 –...
  • Page 7 Remove two screws. Remove the upper cover while the printer cover is open. Screws (S7) Precaution when assembling: Precaution when assembling: Let the connector through the hole. Slide the lever of the cover to “close” and then fit the upper cover into the printer. Remove the screw and then the printer cover.
  • Page 8 Remove the two screws and then the paper guide and the cutter. Screws (S8) Remove the power switch. Remove the four screws and then the printer unit. Screws (S3) Screws (S3) Loosen the two screws and then remove the end sensor unit. Precaution when assembling: Be sure to arrange the cables as shown below.

  • Page 9: Circuitry

    CIRCUITRY 3333 POWER SUPPLY CIRCUIT The power supply source is a DC 24 V. LED DS1 VCC3 BUFFER U3. 21 VCC3 DRIVER PRINTER LATCH VCC3 MOTOR PRINTER HEAD VCC3 OTHER IC DRIVER AUTO CUTTER VCC(+5 V) VCC3 (+3.3 V) POWER SW REGULATOR REGULATOR VP(+24 V)

  • Page 10: Maintenance & Troubleshooting

    MAINTENANCE & TROUBLESHOOTING 4-1. INSTALLING OR REPLACING PAPER ROLL CAUTION: Make sure that paper rolls meets printer’s specification. Do not use paper rolls that have one end glued to the core. This causes excessive load on the paper feed. Make sure that the printer is not printing or receiving data, and open the printer cover by sliding the cover open knob.

  • Page 11: Paper Jam

    4-3. PAPER JAM CAUTION: Do not touch the printer head because they are very hot after continuous printing. Do not attempt to clear a paper jam until the printer cools down. Turn the printer off and slide the cover open knob. Remove the jammed paper and replace the paper roll.

  • Page 12: Troubleshooting

    4444 TROUBLESHOOTING Error Contents Causes / Points to Check Solutions Can't turn the printer ON. Is the power switch turned Turn the power switch ON. Is the connector on the power Connect the connector firmly. adapter properly connected? Does the LED on the adapter If the LED does not light up, check to see if the light up when connected to the power cable is connected properly.

  • Page 13: Self Test

    4-5. SELF TEST Use the self test to check that your printer is operating properly. It checks the control circuits, printer mechanisms, print quality, and displays the firmware version and DIP switch settings. Make sure that the printer cover is closed properly and turn the power off. While holding down the FEED button, turn the printer on and continue holding down the FEED button until the self test starts.

  • Page 14: The Dip Switches

    THE DIP SwITCHES 5-1. DIP SwITCH 1 SETTING = Default setting Contents Status Status Reset By Dtr Signals Invalid Valid Reserved Fixed to Off Protocol XON/XOFF DTR/DSR Baud Rate Refer to the table "Baud rate" below. Parity Refer to the table "Parity" below. Busy status Buffer full Buffer full + OFFLINE...

  • Page 15: For Changing Dip Switch Setting

    5-3. FOR CHANGING DIP SwITCH SETTING Make sure that Power of the printer is turned off. Loose the screw and remove the metal plate at the bottom of the printer. Change the status of DIP switch by using something with a point. Replace the metal cover and fasten the screw.

  • Page 16: Circuit Diagrams

    WR0# SW DIP-10 VCC3 DSRRS T# 0.1uF CN10 * marks are unmounted parts. TX25-40P -LT-H1E ON CHIP DEBUG EMULATOR VCC3 SN74LV541APWR Model PWB No. PWB Name SW DIP-10 CASIO COMPUTER CO.,LTD. UP-370 EBL-0950D-1 Main Board Circuit (1/3) – 14 –...
  • Page 17 10K 1% 1SS319 0.1uF 3.3K HVCCS W# HeadResistance 100pF VCC3 Receipt Near End Sensor * marks are unmounted parts. RNEND# R182 B2B-EH 0.1uF Model PWB No. PWB Name CASIO COMPUTER CO.,LTD. UP-370 EBL-0950D-1 Main Board Circuit (2/3) – 15 –...
  • Page 18 0251005. R192 BLM31PG330SN1 LM2672MX-5.0 EC31QS06 + EC3 0.1uF 0.1uF 100uF/16V R193 100uF/50V TCS7960-5320177 BLM31P G330S N1 R101 1000pF * mark are unmounted parts Model PWB No. PWB Name CASIO COMPUTER CO.,LTD. UP-370 EBL-0950D-1 Main Board Circuit (3/3) – 16 –...
  • Page 19 *C218 *C220 *C221 *C222 *C223 22uF/10V C210 10uF FB200 BLM31P G500S N1L VCC18 *L205 *C226 *C211 *C227 *C228 *C229 * marks are unmounted parts. Model PWB No. PWB Name CASIO COMPUTER CO.,LTD. UP-370 EAL-0951B Sub Board Circuit – 17 –...

  • Page 20: Parts List

    2. As for spare parts order and supply, refer to the “GUIDEBOOK for Spare Parts Supply”, published separately. 3. The numbers in item column corespond to the same numbers in drawing. 4. CASIO does not supply the spare parts without parts code. 5. Remarks Q'ty :...
  • Page 21 To MAIN PWB CN5 To MAIN To MAIN PWB CN2 PWB CN3 To A To A To A To MAIN PWB CN1 To PRINTER To MAIN PWB J1 To MAIN PWB – 19 –...
  • Page 22 UP-370 Price Item Code No. Parts Name Specification Q'ty Rank Code 1. MAIN BOARD UNIT 1 10336681 PWB/MAIN 00-010667-02 2. CONTROL PANEL UNIT 2 10328146 ASSY/CONTROL PANEL 20-080050-05 ASSY/HARNESS 03-47411126LF 3. I/F PWB UNIT 4 10336682 PWB/IF 00-010669-02 PLATE/IF 03-45430600LF 4.
  • Page 23 UP-370 Price Item Code No. Parts Name Specification Q'ty Rank Code SCREW 03-55100128LF SCREW 03-55100010LF SCREW 03-55191250LF SCREW 03-55190710LF SCREW 03-55101260BLF SCREW 03-55104020LF SCREW 03-55100440LF SCREW 03-55180045LF SCREW 03-55100420LF SCREW 03-55100121LF SCREW 03-55100430LF SCREW SCREW 03-55100150LF 10328160 ADAPTOR 02-22620150LF – 21 –...
  • Page 24 CASIO COMPUTER CO.,LTD. Overseas Service Division 6-2, Hon-machi 1-Chome Shibuya-ku, Tokyo 151-8543, Japan...

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