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On August 1, 1987, Hewlett-Packard announced the HP 82242A Infrared Printer Module for the HP-41. This ROM emits an infrared beam, allowing the HP-41 to use the 82240A (and now the 82240B -GW) printer. The module provides all of the functions contained in the 82143 printer as well as the FMT function of the 82162 printer.
The printer also has the following functions not contained in either of those printers:
Function Name Description DELAY Set the time between output of lines of information. Valid input range is 0.9 to 2.9 seconds, (it is believed) MAN Sets manual mode (done with a switch on the front of the 82143 and 82162 printers). Clears flags 15 and 16 for use with the 82240 IR printers. NORM Clears flag 15. Sets flag 16. TRACE Sets flag 15. Clears flag 16. MAPON Remaps character set for compatibility with the 82143 and 82162 printers. A few characters are not mapped the same. MAPOFF Uses the standard character set of eh 82240 IR printer. PRTON Sets flag 21 and flag 55. PRTOFF Clears flags 21 and flag 55. RESETP Return system control flags to their default state. This resets to MAPON, standard DELAY, MAN and flags 21 and 55 set. STARTU Accumulate start underlining STOPU Stop underlining