Introduction Power Supply Requirements Hardware Options External Conne

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Introduction Power Supply Requirements Hardware Options External Conne

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A262B Interface Board Connection Application Data
Introduction Power Supply Requirements Hardware Options External Connectors (Functions Pinouts) Software Requirements (Control <ESC> code routines) A262B Board Layout Diagram Schematic
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Introduction A262B cost controller board designed drive M260 series mini-printer mechanisms. Controller board based A262C single-chip controller. A262B features: Dual-in-Line S.C.C. (A262C) Full support EPSON M-260, M-262, inc. AU-100 cutter option column print modes (Hardware Software selectable) `IBM' character with eight country-specific character sets Double width height, underlining colour printing Inverted text mode (Hardware selectable panel-mounting) colour dot-line graphics dots line character buffer allowing data received whilst printing Parallel data interface with strobe busy lines Serial data interface with selectable Baud rate format Serial data output optional <XON> <XOFF> <NAK> information Paper feed switch input Self test switch input Many other software features
hardware required M-260, M-262 Printer Mechanism AU-100 Auto Cutter, required TU-260 Paper Take-up Device, required A262B Interface Board +12V Power Supply This Data Sheet lists functions pinouts external connectors, various link selectable options available A262B details software codes A262C controller firmware.
Power Supply Requirements Hardware Options A262B operates from single +/-10% supply, derives supply required A262C directly from this. hardware options A262B are: Parallel/Serial Interface Type: jumper parallel mode Leave open serial mode Default Inverted Print Mode: serial mode, jumper select inverted print mode parallel mode, jumper select inverted print mode Default 35/42 chars. line: jumper 9-10 character mode default jumper position (removing this jumper will make printer operate manner which backward compatible with A261B). Mechanism Frame Ground Logic link frame grounded tacho signal also inverted fitting links removing R51. This option become necessary when using graphics mode. Auto-cutter itself rated more than cuts minute running continuously more than minutes. This will problem normal use, care should taken avoid over-driving cutter motor development. External Connectors RS-232 Serial Input Output
4-Pin, Single Line, 0.1" Pitch, Barrier-Polarised BUSY Serial Data Input Serial Data Paper Serial Busy Paper Ground (0V)
Serial data mode selected ensuring there jumper fitted position reset. baud rate word format used serial data input output defined Pins RESET. (See description details). Serial data expected standard RS-232C format with `Low' (-12V) meaning `mark' `1'. least stop bits always expected. output channels Serial Data out, busy signal, Paper-Low indication. These selected Serial data line, selected, transmits <XON> <XOFF> <NAK> information host format, baud rate, specified Serial data Serial busy line true (i.e. `Low' (12V)), when busy. Paper-Low indication true when paper low. Please note that Paper-Low indication will register true (i.e. Paper low) TU-260 connected
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Serial Output Channel Selection (Jumper selection)
8-Pin, Dual Line, 0.1" Pitch Enable Enable Enable Enable Serial Busy output Paper output Paper output Serial Data output
Selections should made fitting jumper, link, between pairs pins shown. Care should taken avoid enabling outputs same output line. Parallel Input Serial Data Format Selection)
26-Pin, Dual Line, 0.1" Pitch, Bump Polarised Parallel mode selected fitting jumper reset. parallel data mode connections follows: Data Strobe input (Positive Active Edge) Data Data Data Data Data Data Data Data Connected Parallel Busy Output (High Busy) Connected Paper Output (High Paper Low) these input output signals
even numbered pins grounded (0V). TTL/CMOS compatible with range +5V.
serial mode, Pins through used determine baud rate word format data input output follows: High Parity High Parity High Data Bits (Link fitted) Even Parity (Link fitted) Parity Used (Link fitted) Data Bits
Baud Rate
19200
1200
2400
4800
9600
Default (1200)
each case `Low' should selected fitting link, jumper, adjacent even numbered (Ground).
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Front Panel Switches
5-Pin, Single Line, 0.1" Pitch, Barrier-Polarised Auxiliary RESET input (RESET Low) Ground (0V) Self Test input (TEST Low) Ground (0V) Paper Feed input (FEED Low)
These three inputs each have pull-ups fitted, activated with switch ground. Paper-feed input. this will cause paper through mechanism rate about lines second time when mechanism busy printing. Self-test input. this will cause Self-test message printed (See description <ESC>, <ESC> command below). part-received data line buffer will printed before Self-test message. Cutter Connector (Mechanisms fitted with AU-100 only)
5-Pin, Single Line, 0.1" Pitch, Barrier-Polarised Full/Partial Switch input Reset Switch input Ground (0V) Cutter Motor Drive (+ve) Cutter Motor Drive (-ve)
This connector should have flying lead from EPSON AU-100 Auto-cutter unit fitted proper cutter operation. other cutter unit should connected Main Printer Mechanism Connector
20-Pin, Single Line, Connector Fitted Trigger Return (+12V) Trigger Drive Mechanical Reset Detect Mechanical Reset Return (0V) Frame Ground Print Solenoid Print Solenoid Print Solenoid Solenoid Common Return (+12V) Solenoid Common Return (+12V) Solenoid Common Return (+12V) Print Solenoid Print Solenoid Print Solenoid Print Solenoid Motor Return (+12V) Tacho Return (0V) Tacho Detect Motor Drive Connected
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EPSON M-260/M-262 Data Sheets more details mechanism functions above signals. Paper Take-up Device Connector (TU-260 Only)
3-Pin, Single Line, 0.1" Pitch, Barrier-Polarised Take-up Return (+12V) Connected (Make connection this pin) Take-up Drive
This connector should have flying lead from EPSON TU-260 fitted proper paper take-up operation. Main Power Connector
4-Pin, Single Line, 0.2" Pitch, Removed +12V Input Ground Output Ground
usual A262B configuration offers host access internal rail used A262C other hardware PCB. This used reference purposes, should have excessive current drawn from Paper Input (TU-260 Only)
2-Pin, 0.1" Pitch Ground (0V) Paper Switch Input (Paper Low)
This connector should have flying lead from EPSON TU-260 fitted proper paper-low sensing. polarity important. Paper condition indicated pins being shorted together. Default Settings (Jumper selection)
10-Pin, 0.1" Pitch 9-10 Select inverted print when Parallel Data Mode (Must open Serial Mode) Select inverted print when Serial Data Mode (Must open Parallel Mode) jumper* Select Parallel Serial data modes (Fit jumper Parallel data) Select default column print mode (Fit jumper select column mode)
controller board been designed such that backward compatible with host equipment designed with A261B (previous version controller board A262B). Remove jumper make printer backwards compatible (Information operation controller this, backward compatible mode operation, supplied request.) Attached complete circuit diagram A262B. Refer board layout connector orientations, numbering, fixing positions. A262B fixing positions common with
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printer mechanism ease mounting. Note that care should taken avoid short circuits caused mounting controller board close printer mechanism. Software Requirements (Control routines) A262B interface board recognizes full ASCII coded, 8-bit character set, with various characters substituted basic character according current country setting. (See below select character set, list substituted characters). print format A262C modified embeddable control codes within printable text, ESCAPE code sequences select de-select certain global features. Embeddable Control Codes list valid embeddable control codes given below: Code <LF> <CR> <SO> <SI> <DC1> <DC2> <DC3> <CAN> Function Line Feed. Line Terminator Carriage Return. Line Terminator Double width print control marker Single width print control marker Underlined print control marker Non-underlined print control marker print control marker (This must first code line) Abort printing immediately, revert cold start settings
other codes range DEC, HEX, ignored. line printed (M-262 mechanism only), must have print control marker first code line. print control code functions valid only physical print line. Each line defaults starting with single width, underlining black printing. A262B responds intelligently combinations <LF> <CR> line termination codes, providing extra line feed only both codes are, repeated. null line, that line terminator received first code line, trapped fast paper feed executed opposed `printing' blank line). Global Print Format Codes valid <ESC> code sequences listed below: Sequence <ESC>, <ESC> <ESC>, <ESC>, <ESC>, <ESC>, <ESC>, "C", <ESC>, "*0" <ESC>, "*1" <ESC>, "F", <ESC>, "H", n1.n35 <ESC>, "I", n1.n35 <ESC>, "J", n1.n35 <ESC>, "K", n1.n35 Function Initiate Self-test. Select (Normal, text) mode. Select (Inverted, data) mode. Select Normal height print mode. Select Double height print mode. Select country code Select column mode. Select column mode. Feed paper (optionally) cut. line graphics, feed Black line graphics, feed line graphics, feed. Black line graphics, feed.
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Note that although comma used separate characters examples above, semicolon required most versions BASIC. Characters delimited quotation marks represent ASCII characters, whereas lower case symbols represent binary values. Each ESCAPE sequence must logical line i.e. must mixed with printable text. Therefore should always immediately follow <CR> <LF>) code terminated valid line termination sequence. (i.e. <CR>, <LF>, <CR> <LF>, <LF> <CR>). Incorrectly phrased sequences will ignored and, recognized ESCAPE sequences all, will cause <NAK> code (HEX 15,DEC transmitted from serial output line. brief explanation each <ESC> code sequence given below. <ESC>, <ESC> Initiate Self-test This sequence will cause A262C busy outputs active print short Self-test message, consisting Issue number firmware dump currently active character set. current modes used except sideways printing, which defaults normal orientation then reverts previous setting when Self-test completed. This command performs same function Self-test hardware input. <ESC>, Select Left Right justified printing These codes instruct A262C controller construct printed text paper normal Text) mode, with text running from left right across paper, Inverted (Data) mode, with text running from right left across paper. Inverted mode typically used when mechanism mounted with printed material emerging down printer mechanism, panel mounted operation. <ESC>, Select Normal Double height printing These codes switch double height print mode off. When double height mode each line character line repeated. This does apply graphics lines. When sideways print mode, double height characters will printed apparently double width. <ESC>, "C", Select character country number This code selects special country character used printing. value range (zero) (and will used Modulo greater), specifies country according following code: Code Country (Default setting) France Germany England Denmark Sweden Italy Spain
characters available each defined Industry Standards, listed below.
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<ESC>, "*", Select Print mode These codes instruct A262B enter print mode defined above. When given print mode A262C will automatically terminate data line received that maximum number characters allowed that mode. Line Terminator character received immediately following this, will ignored. (For example, when column print mode, sequence printable characters followed character will result extra line feed unless code repeated.) <ESC>, "F", Feed paper perform Partial Full This sequence serves independent functions, which often required together. value range (zero) (DEC) encoded follows. Next Lowest five bits HEX, DEC) HEX, DEC) (0-1F 0-31 when finished set. Partial Full (1=Full) Number linefeeds before cut.
example, ASCII sequence: <ESC>, "F", "E", <CR> (which equivalent HEX: DEC: will feed five blank lines then perform partial cut. A262B intelligent cutter handling determine whether been successfully completed, prevent overdriving cutter motor. reason cutter should fail properly, A262C will transmit <NAK> code (HEX from serial output line, then attempt continue other operations normal. Please note that this command control EPSON AU-100 Auto-cutter unit only. <ESC>, "K", n1.n35 Print line graphics. image graphics downloaded line time, format based column alphanumeric print mode. normal column mode character five dots wide blank between next character. Hence consists units dots. download graphics these units dots each expressed binary numbers range DEC, HEX, where printed with most significant towards left line. first number sent printed extreme left line. (These directions reversed when Inverted (R-L) mode). Each line specified black individually, with without feeding paper after printing line. This control paper feeding enables full colour printing, overprinting graphics colours. Both colours available printed without moving paper minimise number ribbon shifts (and therefore time) required print many lines dual colour graphics. Note that owing design printer mechanism, head shuttle cycles required change ribbon colour. Therefore care should taken minimise excessive ribbon shifts these increase overall printing time quite considerably. Please note that mechanical tolerances adjacent dotlines graphics become displaced column position. This condition remedied inverting tacho signal controller (swap pins A262C).
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Character A262B controller eight country-specific character sets. These based character set, have special character specific each country substituted into character table. character reproduced below, together with summary characters that different each country. Both column mode column mode characters shown sample print.
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A262B Layout Diagram
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A262B Schematic
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Introduction Power Supply Requirements Hardware Options External Conne

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