Editing TRS-80 (section)

=== Printers ===
The "Quick Printer" <ref>{{cite web|title=Radio Shack Computer Catalog RSC-2, page 16|url=https://www.radioshackcatalogs.com/flipbook/c1978_rsc-02.html?fb3d-page=16|website=Radio Shack Catalogs dot com|publisher=Tandy/Radio Shack|access-date=December 1, 2022}}</ref> is an electrostatic rotary printer that scans the video memory through the bus connector, and prints an image of the screen onto aluminum-coated paper in about one second. However, it is incompatible with both the final, buffered version of the Expansion Interface, and with the "heartbeat" interrupt used for the real-time clock under Disk BASIC. This can be overcome by using special cabling, and by doing a "dummy" write to the cassette port while triggering the printer.

Two third-party printers were for {{convert|57|mm|in|abbr=on}} metal-coated paper, selling for approximately DM 600 in Germany, and a [[dot-matrix printer]] built by [[Centronics]] for normal paper, costing at first DM 3000, later sold at approximately DM 1500 in some stores. It has only 7 pins, so letters with descenders such as lowercase "g" do not reach under the baseline, but are elevated within the normal line.

Radio Shack offered an extensive line of printers for the TRS-80 family, ranging from basic 9-pin dot matrix units to large wide-carriage line printers for professional use, daisy-wheel printers, inkjet, laser, and color plotters. All have a Centronics-standard interface and after the introduction of the [[TRS-80 Color Computer|Color Computer]] in 1980, many also had a connector for the CoCo's serial interface.

FP-215 is a flatbed [[plotter]].<ref>{{Cite web|url=https://github.com/human39/fp-215-plotter|title=GitHub - human39/fp-215-plotter: Radio Shack TRS-80 FP-215 Flatbed Plotter Info|date=August 11, 2019|via=GitHub}}</ref>