Honeywell 400 Series Hardware Manual page 55

1. Hopper Empty
Stacker Full
Manual Halt
Chad Box Full
5. Feed Alert
6. Card Jam
Card Handling Mechanism
The card handling mechanism consists of an input homer and an output stacker, each with
a capacity of 800 cards, and a card track for moving the cards. A set of 80 punch dies,
regulated by the control electronics, punches cards one row at a time. The postpunch
read station of 80 wire brushes double-checks the accuracy of the punching. Warning
switches in the mechanism halt the punch whenever an imprOper condition exists.
A weight in the input happer holds cards so that the bottom card rests firmly against the
feed plate. A convenient place for manually aligning card edges is provided by a jogger
plate located near the loading and unloading areas of the punch. Card chips created by the
punching operation are accumulated in a removable chad box.
Card punching begins upon receipt of a punch instruction. When the instruction is received
and accepted, if no Attention conditions exist, the punch becomes busy and a pair of feed
knives push the bottom card of the stack out of the input h0pper, face down and 12-row
first. The card moves to station 1 (the prepunch station). (See Figure 19.)
- 46-