IBM 6500-V20 Maintenance Manual - Page 37
Mechanical Controls: Control or Indicator, Function
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Mechanical Controls: Figure 6 Mechanical Controls: Figure 6 Control or Indicator Function Paper Supports Forms Thickness Lever Forms Thickness Pointer and Scale Help prevent paper jams by supporting the paper between the tractors. The supports are positioned manually by sliding them along the tractor shafts. Sets the platen for paper and forms of different thicknesses. This lever must be fully opened (raised) to load or unload paper. Indicates relative thickness of forms and paper. Set this lever at A for thin (single-part) forms, B for thicker forms, and so on. Forms Thickness Lever and Platen Stop Tractors (2) Tractor Locks (2) Vertical Position Knob Ribbon Loading Path Diagram The forms thickness lever closes the platen to the relative thickness of the paper. The platen stop returns the platen to the lever adjustment set by the user. Hold and feed paper. Used to set side margin and position paper horizontally. Lock tractors in position. Used to set top of form or first line to be printed. Rotating this knob moves paper vertically. Works when forms thickness lever is open. Instructions showing how to load the ribbon correctly. Paper Scale A horizontal scale graduated in tenths of an inch, useful for setting paper margins counting text columns. (See below.) 1 inch 1 10 20 0.1 inch Column Number 37