Scanning System - Toshiba DP120F Service Manual

Chapter 2 Specifications

1. Scanning System

Scanning method:
Light source:
Effective scanning width:
Details of effective scanning width:
Paper size
Letter
Legal
A4
a: 1-line width
d: White mask (R)
<Remarks>
• The effective scanning width has a mechanical error range of 1.5.
• For calculating into a pels value, multiply each value by 8 (i.e. 8 pels per mm).
March 2000 © TOSHIBA TEC
Flat scanning by CIS
(Fed step by step using a pulse motor)
Yellow-green LED array (Wave length: 570nm)
214 mm
Scanning position detected by a photo-interrupter.
Document leading edge:
Document trailing edge:
a
b
Fig. 2-1
a b
216 1
216 1
210 0
b: White mask (L)
2-1
2 mm±2 mm
0 mm±2.5 mm
Max. 4mm
Effective scanning range
c d
214 1 Transmission/Copy
214 1
214 0 Transmission/Copy
c: Effective scanning width
DP120F/DP125F Specifications
Unit: mm
Mode
Transmission