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A262B Interface Board Connection and Application Data

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A262B Interface Board Connection and Application Data
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The hardware required is: M-260, or M-262 Printer Mechanism AU-100 Auto Cutter, if required TU-260 Paper Take-up Device, if required A262B Interface Board +12V @ 2A Power Supply This Data Sheet lists the functions and pinouts of the external connectors, the various link selectable options available on the A262B and details of the software codes and A262C controller firmware.
4-Pin, Single in Line, 0.1" Pitch, Barrier-Polarised 1 2 3 4 RxD TxD / PL BUSY / PL GND Serial Data Input Serial Data out or Paper Low out Serial Busy out or Paper Low out Ground (0V)
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Serial Output Channel Selection (Jumper selection)
8-Pin, Dual in Line, 0.1" Pitch 1-2 3-4 5-6 7-8 Enable Enable Enable Enable Serial Busy output (To Pin 3, J1) Paper Low output (To Pin 3, J1) Paper Low output (To Pin 2, J1) Serial Data output (To Pin 2, J1)
Selections should be made by fitting a jumper, or link, between the pairs of pins shown. Care should be taken to avoid enabling two outputs for the same output line. J3 Parallel Input (or Serial Data Format Selection)
All even numbered pins of J3 are grounded (0V). TTL / CMOS compatible with a range of 0V to +5V.
Baud Rate 9 11 13
Default (1200) H H H
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Front Panel Switches
5-Pin, Single in Line, 0.1" Pitch, Barrier-Polarised 1 2 3 4 5 Full / Partial Switch input Reset Switch input Ground (0V) Cutter Motor Drive (+ve) Cutter Motor Drive (-ve)
This connector should have the flying lead from the EPSON AU-100 Auto-cutter unit fitted for proper cutter operation. No other cutter unit should be connected to J5. J6 Main Printer Mechanism Connector
20-Pin, Single in Line, No Connector Fitted 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Trigger Return (+12V) Trigger Drive Mechanical Reset Detect Mechanical Reset Return (0V) Frame Ground Print Solenoid A Print Solenoid B Print Solenoid C Solenoid Common Return (+12V) Solenoid Common Return (+12V) Solenoid Common Return (+12V) Print Solenoid D Print Solenoid E Print Solenoid F Print Solenoid G Motor Return (+12V) Tacho Return (0V) Tacho Detect Motor Drive Not Connected
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See the EPSON M-260 / M-262 Data Sheets for more details of the mechanism and the functions of the above signals. J7 Paper Take-up Device Connector (TU-260 Only)
3-Pin, Single in Line, 0.1" Pitch, Barrier-Polarised 1 2 3 Take-up Return (+12V) Not Connected (Make no connection to this pin) Take-up Drive
This connector should have the flying lead from the EPSON TU-260 fitted for proper paper take-up operation. J8 Main Power Connector
4-Pin, Single in Line, 0.2" Pitch, Pin 2 Removed 1 2 3 4 +12V Input 0V Ground +5V Output 0V Ground
In the usual A262B configuration pin 3 of J8 offers the host access to the internal +5V rail used by the A262C IC and other hardware on the PCB. This may be used for reference purposes, but should not have excessive current drawn from it. J9 Paper Low Input (TU-260 Only)
This connector should have the flying lead from the EPSON TU-260 fitted for proper paper-low sensing. The polarity is not important. Paper out condition is indicated by pins 1 and 2 being shorted together. J10 Default Settings (Jumper selection)
10-Pin, 0.1" Pitch 1-2 3-4 5-6 7-8 9-10 Select inverted print when in Parallel Data Mode (Must be open in Serial Mode) Select inverted print when in Serial Data Mode (Must be open in Parallel Mode) Fit jumper Select Parallel / Serial data modes (Fit jumper for Parallel data) Select default 42 / 35 column print mode (Fit jumper to select 35 column mode)
The controller board has been designed such that it can be backward compatible with host equipment designed for use with the A261B (previous version of controller board to the A262B). Remove the jumper to make the printer backwards compatible (Information on the operation of the controller in this, backward compatible mode of operation, can be supplied on request.) Attached is a complete circuit diagram for the A262B. Refer to the board layout for the connector orientations, pin numbering, and fixing positions. The A262B has its fixing positions in common with
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The characters available in each set is defined by Industry Standards, and are listed below.
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Character Set The A262B controller has eight country-specific character sets. These are all based on the 8 bit IBM character set, but have special character specific to each country substituted into the character table. The IBM character set is reproduced below, together with a summary of the characters that are different for each country. Both 35 column mode and 42 column mode characters are shown in the sample print.
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A262B Layout Diagram
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A262B Schematic
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