Scsi Interface Board; Outline; Specifications - Canon GP335 Service Manual

CHAPTER 11 SYSTEM INTEGRATION
II. SCSI INTERFACE BOARD
A. Outline
This board is connected by means of a SCSI interface and is deigned to provide its host copier
with scanner functions.
B. Specifications
Item
Scan type
Scan range
Resolution
Image density setting
Image type, gradation
External interface
Memory
CPU
EPROM
System motherboard
Image processor
PCB
Simple
binary/
halftone
IP-CPU
11-4
Copyboard cover, feeder
A3 to A7
2400 to 150 dpi (set in units of 1 dpi)
Manual
AE
Others
Binary
Gradation
SCSI-2 compatible
Standard 10 MB (on-board)
H8/3003 operating frequency of 16 MHz
256 k x 16 bit 85ns (4 Mbit)
Table 11-201
SCSI PCB
Binary/
multiple
value
selection
circuit
E601
Figure 11-201
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Description
9 settings
ABC (no pre-scanning)
Set on the driver side
Simple binary/ED
16/256 gradations
10-MB
memory
Density
processing
Fuse
SCSI-CPU
E603
Memory controller
assembly
Terminator