Ricoh FT6645 Manual page 48

23 April 1993
2.4 ERASE
2.4.1 Overview
L : Lead edge erase margin
E
S : Side erase margin
E
Lo: Original width
Lc: Charged width of drum
E : Lead edge erase
L
Es: Side erase
The erase lamp unit consists of a line of 123 LEDs extending across the full
width of the drum, the width of each being about 2.5 mm. In editing mode, the
appropriate LED's turn on according to the customer's designation.
E L
S O
L
C
3.5 ± 2.5 mm
total of both sides 3 mm or less
2-23
DRUM UNIT
E
L
L
E
S
E