Printronix P9000 Series manual P9012 Print Rate LPM

ONE

CHARACTER

ROW

DIRECTION OF SHUTTLE MOVEMENT

DOT

ROW START

1
2
3
4
5
6
7
8	*
9	* *
10

11SPACE

12

1

2

1 HAMMER	1 HAMMER
PRINT SPAN	PRINT SPAN

PAPER

ADVANCES

PAPER

FEED

PAPER

ADVANCES

*USED FOR LOWERCASE DESCENDER ONLY

**USED FOR UNDERLINE AND LOWERCASE DESCENDER

NOTE: P9012 SHUTTLE SWEEPS THROUGH 1.5 CHARACTER POSITIONS AT 10 CPI

Figure 1-2. Line Matrix Printing

Print Rate

The print rate, in lines per minute (lpm), is a function of the number of dot rows required to produce the character line regardless of the number of characters in the line. For example, more dot rows are required to print lowercase characters with descenders; consequently, those characters are printed at a slower rate. Table 1-1 describes the print rate according to type of character printed and print mode. Complete printing specifications are provided in the ApF pendix.

Table 1-1. Print Rate

	P9012 PRINT RATE (LPM)
	Uppercase Characters	Upper & Lowercase
Print Mode	(No Descenders)	Characters
High Speed A (HS)	1200	1030
High Speed B (HSB)	1030*	900
High Speed C (HSC)	1030*	800
Data Processing (DP)	900	720
Correspondence (NLQ)	480	370

*1030 lpm at 8 lpi; at 6 lpi, the print rate is slightly lower.

1-4 Overview