Printronix P9212 - Character Generation

2–6
Principles of Operation
Permanent Magnet
Hammer
Hammer
Spring
Coil
Coil Coil
Coil
Coils de–energized Coils energized
Normal (retracted) State Activated (released) State
Tip
Figure 2–5. Hammer Spring Action
Character Generation
Paper advances one dot row after each horizontal sweep of the shuttle. (See
Figure 2–6 and Figure 2–7.)
Dot
Row Start
Paper
Advances
Paper
Feed
Paper
Advances
Space
1
2
3
4
5
6
7
8*
9**
10
11
12
1
2
Used for lowercase descender only.
Used for underline and lowercase
*
**
Character
Row
Direction of Shuttle Movement
1 Hammer
Print Span
1 Hammer
Print Span
The P9212 shuttle sweeps
through 1.5 character
positions at 10 cpi.
descender.
Figure 2–6. Standard Character Formation