Manual Controls, Printer - IBM 1800 Operating Procedures Manual

Figure 21. 105 3 Printer Keys
MANUAL CONTROLS, PRINTER (Figure 22)
The Platen Knobs rotate the platen forward or backward
for manual positioning of forms. Pressing in on the left
platen knob allows the platen to be rotated freely (without
detent) for variable -registration of forms. When a pin-feed
platen is installed, the right platen knob must be used for
variable registration of forms.
Figure 22. Printer Manual Controls
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IBM 1800 Operating Procedures
The Multiple-Copy Lever permi ts adj usting the clearance
between the print eleme nt and platen to provide best
printing results. For three -carb on fo rm , se t this lever to
the second mark . Set the lever to the third mark fo r five-
carbon forms.