IEEE1284 Parallel Interface, Mode | Epson L90 specification

A.2 IEEE1284 Parallel Interface

A.2.1 Mode

The IEEE1284 parallel interface is comprised of the following two modes.

Mode	Communication direction	Other information

Compatibility Mode	Host → printer	Centronics standard
	communication

Reverse Mode	Printer → host	Assumes a data transfer from an asynchronous printer.
	communication

❏Compatibility Mode

Compatibility Mode is Data Transmission from Host to Printer: Centronics compatible.

Specifications
• Data transmission:8-bit Parallel
•	Synchronization:	Externally supplied n*Strobe signals
•	Handshaking:	n*Ack and Busy signals
•	Signal levels:	TTL compatible
•	Connector:	ADS-B36BLFDR176 (HONDA) or
	equivalent (IEEE 1284 Type B)

•Reverse communication (Printer Host):Nibble or Byte Mode

*n before the signal name indicates active LOW.

❏Reverse Mode

The status data transmission from the printer to the host proceeds in the Nibble or Byte mode.

This mode allows data transmission from the asynchronous printer under the control of the host.

Data transmissions in the Nibble Mode are made via the existing control lines in units of four bits (Nibble). In the Byte Mode, data transmissions proceed by making the eight-bits data lines bidirectional.

Both modes fail to proceed concurrently with the Compatibility Mode, thereby causing half duplex transmission.

A-4Interface And Connectors

Rev. B

Image 132

Epson L90 manual IEEE1284 Parallel Interface, Mode

Contents

TM-L90/TM-L90 Peeler Technical Reference Guide Page Revision Table TM-L90/TM-L90 with Peeler Technical Reference Guide For Safety Key to Symbols Iii Modular Connector Manual Content About This ManualAim of the Manual Related Documentation Rev. B Contents Connecting to the Host Computer and Options Application Development Information ESC/POS Command-Related Information Product SpecificationsAppendix a Interface And Connectors Appendix B Consumable Specifications Appendix C Character Code Table Appendix D Option Specifications Appendix E MaintenanceAppendix F Troubleshooting Appendix G Shipping ProceduresPage Accessories Product OverviewProduct Structure Models Option 2Product Overview Rev. B Name and Description of Each Part Part Names TM-L90Printer Part Names Part names TM-L90 peeler specification Part Names of TM-L90 Peeler Specification4Product Overview Rev. B Feed button with the TM-L90 peeler specification Control PanelFeed button with TM-L90 6Product Overview Rev. B Power Switch Paper OUT LED with the TM-L90 peeler specificationPaper OUT LED with TM-L90 Power switch cover Mode switch TM-L90 peeler specification only8Product Overview Rev. B Mode switch Connectors Connector Panel10Product Overview Rev. B Setup Setup Flow Installation Procedures Precaution For Installation2Setup Rev. B Instructions for Installation 4Setup Rev. B Paper exit guide Adjusting Roll Paper Near-End Detection Position 6Setup Rev. BWith TM-L90 Part names and the locations of N.E. detector components Rev. B Setup 8Setup Rev. B Adjustment Positions of N.E. DetectorDetector Holder Load the roll paper Close the roll paper cover With the TM-L90 peeler specification Setup Rev. B Adjust the sensor so that it projects from the window Near end sensor adjustment position Near end sensor holder Set the roll paper Close the roll paper cover Connecting Power Supply Unit PS-180 Attaching Power Supply Unit Power Supply Connector Autocutter settings TM-L90 only Lift the top of the cutter unit upward and remove it Setup Rev. B Setting Roll Paper Width Notch Front edge Shaft Protrusion DIP Switch Settings DIP switch settings Serial interface model OFF Setting Memory Switches DIP switch settings Parallel, USB, Ethernet model Items that can be set in the memory switch setting mode Starting the Memory Switch Setting mode Location of the Feed button inside the roll paper cover Ending Memory Switch Setting mode Operating procedure of Memory Switch Settings Entering Memory Switch Settings Mode Selecting individual settings Selection of Print density Rev. B Setup Setup Rev. B Rev. B Setup Or more times No change With the TM-L90 peeler specification Setting Various Items via Utilities How to Set Various Items with ESC/POS Commands Memory Switch Functions TM-L90 memory switch settings MSW8 Customized values Serial Communication condition TM-L90 peeler specification memory switch settings MSW7 TM-L90/TM-L90 with Peeler Technical Reference Guide Serial Communication condition Paper Loading Method Paper setting with peeling issuing Rev. B Setup Setup Rev. B Setting Paper Layout Automatic paper layout setting Rev. B Setup +1.5 mm Parameters Calculated for Automatic Layout Setting Clearing Paper Layout Setting TM Setup Items Summary Feed Operating Mode Panel Switch Operation Self Test ModeWith TM-L90 With the TM-L90 peeler specification Connecting to the Host Computer and Options Connecting the CableConnecting to the Host Computer and Options Connecting to the Host Computer With the RS-232C interface Direct Connection Stand alone Pass-through Connections Connection procedure Tightening ScrewsHexagon Bolts Threaded in Inches and Millimeters With the parallel IEEE1284 interface With the USB interface 6Connecting to the Host Computer and Options Attaching Locking Wire Saddle With the Ethernet interface IEEE802.3 TM-L90 only Names of parts Name of Parts Connecting to the Drawer 10Connecting to the Host Computer and Options Application Development Information Introduction of Control MethodsWindows Driver Epson Advanced Printer Driver Epson Advanced Printer Driver Overview Epson Advanced Printer Driver Contents 2Application Development Information Rev. B Epson Advanced Printer Driver Support Environment Supported interfacesSupported OSs with confirmation of system operation Supported development languages 4Application Development Information Rev. B Driver Information and Download Destination Epson Opos ADK Contents Epson Opos ADK Opos Control Overview 6Application Development Information Rev. B Epson Opos ADK Support Environment 3 ESC/POS Commands TM Printer Memory Switch Setup UtilityVarious Utilities Electronic Logo Registration Utility for Nvram Sensors Printer Cover Sensor8Application Development Information Rev. B Offline Busy stateSelecting conditions that invoke a Busy State Label peeling sensor peeler specification only 10Application Development Information Rev. BReceive buffer Printer Busy conditions and the Msw1-3 status Setting of Paper Width Print DensityPrint Speed Paper to use for high speed Barcode Printing Code 128 Barcode12Application Development Information Rev. B Printable characters for code set a 14Application Development Information Rev. B Printable characters for code set B Printable characters for code set C Precautions for Two-Dimensional Code Printing Two-Color PrintingNV Memory 16Application Development Information Rev. B FAQ List Confirmation procedureCorrective procedure Print data dropout occurs Check the handshake process 18Application Development Information Rev. B Rev. B Application Development Information 20Application Development Information Rev. B ESC/POS Command-Related Information Power Supply Switch-Related User Operation ListPower Off Control by the Host When the Power Supply Switch is Enabled When the Power Supply Switch is DisabledHead Divided Control Control After Paper Cut Printer initial setting up Changing command default valuesUsing the NV Memory Customizing Printer Hexadecimal Dump Mode Printer Status Product Specifications Product SpecificationsTM-L90 2Product Specifications Rev. B TM-L90 peeler specification Print Specifications 4Product Specifications Rev. B Reliability Mtbf 6Product Specifications Rev. B TM-L90 peeler specification Character Specifications 8Product Specifications Rev. BCharacter Specifications Character Configurations and Dimensions Paper Feed Specifications Paper SpecificationsPrecautions for Printing and Paper Feed Paper feed 10Product Specifications Rev. B Printing AreaThermal Paper Printable Area For Thermal Paper Label Printable Area for Label 12Product Specifications Rev. B Printing Position in Relation to Cutter Position TM-L90Printing Position in Relation to Cutter Position 23.5mm Overview of External Dimensions 14Product Specifications Rev. BExternal Appearance TM-L90 External Appearance TM-L90 Peeler Specification Operating specifications 16Product Specifications Rev. B Interface And Connectors Interface board specifications RS-232 standardRS-232 Serial Interface Functions of each connector pin RTS 3 XON/XOFF Code IEEE1284 Parallel Interface Mode Interface Signals Connector Pin Assignment 6Interface And Connectors Consumable Specifications TM-L90 Roll PaperReceipt Roll Paper Specified Receipt Roll Paper Specified Original Roll Paper Print Density Adjustment Paper to Use for High Speed Requirements for Black Mark Position for Receipt Paper Black Mark Interval Requirement Specified Die-Cut Label Roll Paper Specifications Die-Cut Label Roll PaperDie-Cut Label Paper Specified Original Paper Consumable Specifications B-7 Requirements for Die-Cut Label Size Label Size Requirement Requirements for Transparency Rate of Die-Cut Label Paper Requirements for Black Mark Position 10Consumable Specifications Continuous Label Roll Paper Continuous Label PaperSpecified Continuous Label Roll Paper Requirements for Size of Continuous Label Paper TM-L90 with Peeler Roll Paper 14Consumable Specifications Consumable Specifications B-15 16Consumable Specifications If paper other than the specified original paper is used 18Consumable Specifications Consumable Specifications B-19 20Consumable Specifications Consumable Specifications B-21 22Consumable Specifications Consumable Specifications B-23 24Consumable Specifications Character Code Table 0 PC437 USA, Standard Europe 1 Katakana 2 PC850 Multilingual 3 PC860 Portuguese 4 PC863 Canadian-French 5 PC865 Nordic 16 WPC1252 17 PC866 Cyrillic #2 18 PC852 Latin2 19 PC858 Euro 255 Blank International Character Set Country Option Specifications Electrical CharacteristicsCase Specifications Case specifications AC Cable Selection Material Maintenance Cleaning the autocutter TM-L90 onlyAdhesive adheres on cutter blade Adhesive being removed with flat-blade screwdriver Print Head Cleaning 4Maintenance Cleaning the peeler TM-L90 peeler specification only 6Maintenance Troubleshooting Panel LED and Error StatusPower Power LED Power Power LED Error Error LED Error Error LEDNo Roll Paper Paper OUT LED Error code Automatically recoverable errorsAutomatically recoverable errors Recoverable errors Recoverable Errors Troubleshooting F-5 Unrecoverable errors Unrecoverable Errors Troubleshooting F-7 8Troubleshooting When a paper jam occurs TM-L90 peeler specification 10Troubleshooting Shipping Procedures 2Shipping Procedures Page Seiko Epson Corporation