Star SP742 Series Hardware Manual
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Star SP742 Series Hardware Manual

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DOT PRINTER
SP712 / 742 SERIES
Hardware Manual

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Kelly
April 24, 2025

We have a sp742 printer and it now only prints in red. I have changed the ink and still red.

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1 comments:
Mr. Anderson
May 12, 2025

The Star SP742 printer may only print in red after changing the ink if a black/red ribbon (RC700BR) is installed and the ribbon is not correctly positioned. If the ribbon is misaligned or stuck in the red section, the printer will only use the red ink. Adjust or reinstall the ribbon to ensure proper positioning between the black and red sections.

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Summary of Contents for Star SP742 Series

  • Page 1 DOT PRINTER SP712 / 742 SERIES Hardware Manual...
  • Page 2 Caution Symbol This symbol is placed near the print head to indicate that it may be hot. Never touch the print head immediately after the printer has been used. Let the print head cool for a few minutes before touch- ing it.
  • Page 3 SP700 : Star Micronics Co., Ltd. Notice • All rights reserved. Reproduction of any part of this manual in any form whatsoever, without STAR’s express permission is forbidden. • The contents of this manual are subject to change without notice.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS 1. Unpacking and Installation ..................1 1-1. Unpacking ................................1 1-2. Notes about Installation ............................ 1 1-3. Handling Care ............................... 2 1-4. Maintenance ................................2 2. Parts Identification and Nomenclature ..............3 3. Setup..........................4 3-1. Connecting the Cable to the PC ........................4 3-2.

  • Page 5: Unpacking And Installation

    1. Unpacking and Installation 1-1. Unpacking After unpacking the unit, check that all the necessary accessories are included in the package. Ribbon cartridge Note Setup sheets CD-ROM Printer Switch blind Roll paper guide Power cord Note: The ferrite core and fastener provided with your printer depend on your printer configuration.

  • Page 6: Handling Care

    1-3. Handling Care Be careful not to drop paper clips, pins or other foreign matter into the unit as these cause the printer to malfunction. Do not attempt to print when either paper or ribbon cartridge is not located in the printer, otherwise the print head can be damaged.

  • Page 7: Parts Identification And Nomenclature

    2. Parts Identification and Nomenclature Printer cover Protects the printer from dust and reduces noise. Do not open the cover while printing. Control panel Power switch Features one control switch and two indicators to indicate printer status. Turns printer power on and off.

  • Page 8: Setup

    3. Setup 3-1. Connecting the Cable to the PC 3-1-1. Parallel Interface Cable Connect the parallel interface cable to a parallel port of your PC. 3-1-2. RC-232 Interface Cable Connect the RC-232 interface cable to a RS-232 port of your PC. 3-1-3.

  • Page 9: Connecting The Cable To The Printer

    3-2. Connecting the Cable to the Printer Note that the interface cable is not provided. Please use a cable that meets specifications. CAUTION Before connecting/disconnecting the interface cable, make sure that power to the printer and all the devices connected to the printer is turned off. Also make sure the power cable plug is disconnected from the AC outlet.
  • Page 10 3-2-2. RS-232 Interface Cable Make sure the printer is turn off. CAUTION Before connecting/disconnecting the interface cable, make sure that power to the printer and all the devices connected to the printer is turned off. Also make sure the power cable plug is disconnected from the AC outlet. Connect the interface cable to the connector on the rear panel of the printer.
  • Page 11 3-2-4. Connecting Ethernet Cable If a ferrite core is included, install the ferrite core onto the Ethernet cable according to the following procedure to prevent electrical noise. If a ferrite core is not included, perform steps (1) and (5) only. Make sure the printer is turned off.

  • Page 12: Connecting To A Peripheral Unit

    3-3. Connecting to a Peripheral Unit You can connect a peripheral unit to the printer using a modular plug. Note that this printer does not come with a modular plug or wire, so it is up to you to obtain one that suits your needs. Important! Make sure that the printer is turned off and unplugged from the AC outlet and that the computer is turned off before making connections.

  • Page 13: Connecting The Power Cord

    3-4. Connecting the Power Cord Note: Before connecting/disconnecting the power cord, make sure that power to the printer and all the devices connected to the printer is turned off. Also make sure the power cable plug is disconnected from the AC outlet.

  • Page 14: Turning Power On

    3-5. Turning Power On Make sure that the Power cord has been connected as described in "3-4. Connecting the Power Cord". Turn ON the power switch located on the front of the printer. The POWER lamp on the control panel will light up. Power switch CAUTION We recommend that you unplug the printer from the power outlet whenever you do not plan to use it for long...

  • Page 15: Installing The Cable

    3-6. Installing the Cable Install the cable as shown in the diagram below. 3-7. Switch Blind Installation It is not necessary to install the switch blind. Only install it if it is necessary for you. By installing the switch blind, the following become possible.

  • Page 16: Bluetooth Settings (For Bluetooth Interface Models Only )

    Pairing will be possible for 60 seconds from when the LED begins flashing green. During this time, execute "Search for devices" from the master device and tap the relevant device from the displayed list. Device name: Star Micronics (default) In an iOS device, after pairing, the LED will automatically begin flashing blue, and the printer will be automatically connected.
  • Page 17 Star Micronics (default) It is recommended that you change the PIN code for greater security. For details regard changing the PIN code, please see the “Software Manual -Star Bluetooth Utility- ”. 3-8-3. Auto Connection Function (iOS only) Each time the wireless connection is disconnected while communicating with upper-level iOS devices including iPad over Bluetooth, it is necessary to move back to the Bluetooth setting screen in the upper-level iOS device and tap the desired printer name again to build a connection.
  • Page 18 After pairing your device and the SP700, change "Auto Connection" in the following application provided by our company. l iOS: Download "Star Setting Utility" from the following Web site. http://www.star-m.jp/prjump/000003.html l Android: Download "Star Setting Utility" from the following Web site.
  • Page 19 3-8-5. Resetting Bluetooth Settings The PIN code, device name, and other settings can be reset by following the procedure given below. While inserting a thin object such as the tip of a pen and holding down the RST button on the rear of the printer, turn on the printer's power switch.

  • Page 20: Loading The Ribbon Cartridge And Paper

    4. Loading the Ribbon Cartridge and Paper 4-1. Loading the Ribbon Cartridge Turn off power to the printer. Open the front cover by holding the finger grips on both ends of the cover and lifting it up. Important! 1. Do not touch the print head immediately after printing as it can be extremely hot.

  • Page 21: Loading The Paper

    4-2. Loading the paper Use a paper roll that complies with the printer specifications. Open the printer cover by sliding the latch toward you. Important! 1. Do not touch the print head immediately after printing as it can be extremely hot. 2.
  • Page 22 Tear Bar Model: Tear off the paper as shown. Auto Cutter Model: If the printer cover is closed after turning on the power, the cutter operates automatically and the front end of the paper is cut. Note: When the paper end mark appears on the paper, replace the roll paper before it runs out. 4-2-1.

  • Page 23: Installing The Roll Paper Guide

    4-3. Installing the Roll Paper Guide When using paper roll with 57.5 mm or 69.5 mm width, install the attached roll paper guide in the groove in the printer. The setting for memory switch 2-A and 2-B must be changed to change the print width. When you change the effective print width (paper roll width), change the printer utility’s memory switch setting.

  • Page 24: Setup Precautions

    4-4. Setup Precautions WARNING P Shut down your equipment immediately if it produces smoke, a strange odor, or unusual noise. Immediately unplug the equipment and contact your dealer for advice. P Never attempt to repair this product yourself. Improper repair work can be dangerous. P Never disassemble or modify this product.
  • Page 25 P Below is a list of laws this device has been approved by. As Star Micronics is committed to constant innova- tion, revisions may be made without an announcement. Access the Star Micronics website for the latest listing of approvals.

  • Page 26: Control Panel And Other Functions

    5. Control Panel and Other Functions 5-1. Control Panel 1 POWER lamp (Green LED) Lights when the power is ON. 2 FEED button Press the FEED button to feed roll paper. 3 ERROR lamp (Red LED) Indicates various errors in combination with POWER lamp. 2 FEED button 3 ERROR lamp (Red LED) 1 POWER lamp (Green LED)

  • Page 27: Errors

    5-3. Errors 1) Recoverable error Recovery Error Description POWER lamp ERROR lamp Buzzer Conditions Paper end error Flashes (On: 1 4 short beeps (0.13 sec./Off: 1 sec.) sec.) repeated twice Printer cover open Beep error Front cover open Flashes (On: 0.5 Beep error sec./Off: 0.5 sec.)
  • Page 28 If the paper is jammed, turn the power OFF, clear the jammed paper, then turn the power ON. When the error occurs: STAR Mode: Non recoverable error ESC/POS Mode: Recoverable error Turn the power OFF, clear the jammed paper or remedy another problem and then turn the power ON.

  • Page 29: Adjustment Mode

    5-4. Adjustment Mode There are the following seven adjustment modes. The device will enter the adjustment mode if your turn it on while pressing the FEED switch. The Self Printing Mode is entered by releasing the FEED switch after the buzzer sounds once. (Refer to Section "5-4-1.
  • Page 30 5-4-1. Self Printing Mode Self-printing will be performed to print the Ver. No. and printer settings. – 26 –...
  • Page 31 5-4-2. Adjusting the Dot Alignment Mode You may never have to use the procedure described in this section, but after you have been using your printer for some time you may find that the dots of some graphics do not align correctly. For example, what should look like: may come out looking like one of the following: or like this This is caused when mechanical parts of the printer get out of alignment.
  • Page 32 To adjust, use the FEED switch to select the adjustment pattern from the printout with the smallest gap between the first printing pass and the return printing pass. Press the FEED switch once to specify the first adjustment pattern, twice to specify the second adjustment pattern, and so on up to seven times to specify the seventh adjustment pattern.
  • Page 33 5-4-3. Hexadecimal Dump Mode Each of the signals sent from the computer to the printer will be printed out in hexadecimal code. This function allows you to check if a control code sent to the printer by the program being used is correct or not. The last line is not printed if its data is less than one full line.
  • Page 34 5-4-4. Black Mark Sensor Alignment Mode Turn the printer off and unplug the power cord. Place the printer upright as shown below to remove the screws and remove the dip switch cover from the bottom of the printer. Be sure to place the printer upright because you will not be able to properly adjust the printer if it is placed on its side.

  • Page 35: Preventing And Clearing Paper Jams

    6. Preventing and Clearing Paper Jams 6-1. Preventing Paper Jams The paper should not be touched during ejection and before it is cut. Pressing or pulling the paper during ejection may cause a paper jam, paper cutting failure or line feed failure. 6-2.

  • Page 36: Releasing A Locked Cutter (Auto Cutter Mode Only)

    6-3. Releasing a Locked Cutter (Auto Cutter Mode only) If the auto cutter locks up or fails to cut the paper, follow the steps below. WARNING Since working on the cutter may be dangerous, be sure to turn off the printer first. Set the power switch to OFF to turn off the printer.
  • Page 37 After you have opened the printer cover, remove the four screws to remove the printer cover and reveal the cutter. Screws If the cutter is locked, insert a Phillips screwdriver into the Phillips screw hole on the side of the cutter, and turn it in the direction of the arrow shown below, in order to return the cutter to its normal position.
  • Page 38 Smernice 1999/5/ES. Español: Slovensko: Por medio de la presente STAR MICRONICS CO.,LTD. STAR MICRONICS CO.,LTD. izjavlja, da je ta Wireless Device [Spanish] [Slovenian] declara que el Wireless Device cumple con los requisitos v skladu z bistvenimi zahtevami in ostalimi relevantnimi esenciales y cualesquiera otras disposiciones aplicables o določili direktive 1999/5/ES.
  • Page 39 URL: http://www.star-m.jp/eng...

This manual is also suitable for:

Sp712 seriesSp742-mSp742me3

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