MIRE includes a line printer port that is functionally identical to the one in the original Expansion Interface. It has been slightly modernized by using a 25-pin D-SUB connector which is wired like a Standard Parallel Port (SPP) on a PC.
The MIRE PCB has a site for an optional 26-pin header which compatible with the usual pinout of PC motherboard LPT connectors:
|DB-25 Pin||Header Pin||SPP Signal|
|10||19||-ACK (unused by MIRE)|
|14||2||-AUTO_LF (unused by MIRE)|
|17||8||-SELECT_PRINTER (unused by MIRE)|
Many modern printers don't automatically eject the final page of a text listing, instead retaining it in case further printing instructions are forthcoming. You might have to press your printer's "cancel" button to eject the page.
The MIREUTIL floppy image has a control program for PCL-based printers (like many OfficeJets). Use PCL/CMD to send PCL commands to the printer. Use the script file PCLRST/JCL (via "DO PCLRST") before printing to set up the proper line endings for TRS-80 format text files, and after printing to eject any retained final page.
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