Mechanical Controls, All Models - IBM 6400 Maintenance Information Manual

Chapter 1
Controls And Indicators

Mechanical Controls, All Models

Control or
Indicator
Forms Thickness Sets the platen for paper and forms of different thicknesses. Lever must be
Lever fully opened (raised) to load or unload paper.
Paper Supports Help prevent paper jams by supporting inner sections of paper. They are
positioned manually by sliding them along the tractor shafts.
Forms Thickness Indicates relative thickness of forms and paper. Set this lever at A for thin
Pointer and Scale (single-part) forms, B for thicker forms, and so on.
Tractors (2) Hold and feed paper. Used to set side margin and position paper
horizontally.
Tractor Locks (2) Lock tractors in position.
Horizontal Allows fine positioning of left print margin. Moves paper and tractors left or
Adjustment Knob right.
Vertical Position Used to set top of form or first line to be printed. Rotate this knob to move
Knob paper vertically. Works when forms thickness lever is open.
Ribbon Loading Instructions showing how to load the ribbon correctly. One diagram is cast
Path Diagrams in relief on the shuttle cover, and another is printed on the paper scale.
Paper Scale A horizontal scale graduated in tenths of an inch, useful for setting paper
margins counting text columns. (See below.)
24
Function
1 inch
1 10 20
Column
0.1 inch
Number