Juki 6100 Daisy Wheel Printer

The front panel contains three membrane switches, three LED indicators, and a slide switch for pitch control. The Juki can print in any of the common pitches: 10 characters per inch (cpi), 12 cpi, 15 cpi, or proportional spacing. The pitch control takes effect only when the printer is turned on or a special software control code is issued.

The three LEDs are labelled Power, Ready, and Check. Checks include both recoverable and non-recoverable errors. When a recoverable error is encountered, such as reaching the end of a sheet of paper, the Check light glows a soft red and a beep sounds. Should a non-recoverable error, such as a paper jam or hardware malfunction occur, the Check light flashes. Both the Power and the Ready light are green, and the Ready light has a flashing mode which indicates a data transfer error.

The membrane switches are labelled Reset, Pause, and Form Feed. A control conspicuous by its absence is a single linefeed. The Pause switch halts printing in mid-line, allowing for ribbon or printwheel changes. If the printhead is moved while changing a ribbon or printwheel, printing resumes at the exact location at which the Pause switch was depressed--a very handy feature.