
● Basic Sequence at Start Key ON (ADF mode/1 original)
: Backward movement
: Forward movement
Black shading/White shading
Start key
ON
SCFW
SCRW
STBY
STBY
Scanner motor
(M31)
LED
CISHP sensor
(S31)
Stream reading
position
Trailing edge
of original
Shading
position
Shading
position
Shading
position
Stream reading
start position
1. Black shading/
White shading/
Original scan
CS HP
sensor
HP
Original glass
reading start
position
Controls
■ Controlling the Scanner Drive System
● Overview
Parts configuration of scanner drive is described below.
Forward
movement
Backward
movement
Sensor
shading
plate
Carriage
CISHP sensor (S31)
Scanner motor (M31)
Contact image
sensor (CIS)
Original glass
cover open/close
sensor (rear) (S33)
Original glass
cover open/close
sensor (front) (S32)
Guide shaft
Carriage drive belt
Reader relay PCB
(PCB2)
• Scanner motor (M31) drive signal
Turns on/off the motor and controls its direction/speed of rotation.
• Contact image sensor (CIS) HP sensor (S31) signal
Detects that the contact image sensor (CIS) is at the home position.
2. Technical Explanation
26
Summary of Contents for imageRUNNER 2520 Series
Page 1: ...Revision 9 0 imageRUNNER 2530 2525 2520 Series Service Manual ...
Page 62: ...No Part name 3 Laser unit 2 Technical Explanation 52 ...
Page 119: ...Periodical Service 3 Consumable Parts and Cleaning Parts 110 Cleaning Parts 115 ...
Page 125: ...Cleaning Parts Fixing guide Transfer guide 3 Periodical Service 115 ...
Page 136: ...List of Sensors S18 S17 S16 TS2 HU1 S9 S8 S19 TS1 S11 S12 4 Disassembly Assembly 126 ...
Page 165: ...5 Remove the idler gear 1 claw 1x 4 Disassembly Assembly 155 ...
Page 172: ... 1 4 2 3 2 2 Remove the scanner motor 4 screws 4x 4 Disassembly Assembly 162 ...
Page 186: ...3 Remove the RAM PCB Release the hook 4 Disassembly Assembly 176 ...
Page 187: ...Adjustment 5 Overview 178 Basic Adjustment 180 Adjustment when Replacing the Parts 182 ...
Page 209: ...Error Jam Alarm 7 Outline 200 Error Code 201 Jam Code 213 Alarm Code 219 ...
Page 231: ...Service Mode 8 Overview 222 Details of Service Mode 225 Remote UI Service Mode 302 ...
Page 314: ...Example of report display 8 Service Mode 304 ...
Page 387: ...APPENDICES Service Tools 378 General Circuit Diagram 379 ...