
*1: The BD signal is generated in reference to the light from laser C. The BD sensor of the BD PCB
receives light from laser C but not light from laser D.
STBY
STBY
INTR
PVREQ
BD
BD detection/APC control ON
APC control ON
Laser C
BD detention/APC control ON
Laser C
Laser D
Controls
■ Controlling the Laser Activation Timing
● Laser ON/OFF Control
Laser ON/OFF control is dependent on the combination of the laser control signal (CNT1-0/1-1/1-2) from the image PCB.
Laser control signal
Laser status
CNT1-2
CNT1-1
CNT1-0
C Laser
D Laser
0
1
0
ON (For APC control)
OFF
0
1
1
OFF
OFF
0
0
1
OFF
ON (For APC control)
0
1
1
OFF
OFF
1
1
1
Video signal entry arrowed
Video signal entry arrowed
0
1
1
OFF
OFF
0
0
1
OFF
ON (For APC control)
0
1
1
OFF
OFF
J8142
C
T
RL
0
_2
C
T
RL
0
_1
C
T
RL
0
_0
Main Controller PCB
● Main Scanning Synchronous Control
The synchronous control in the main scanning direction is performed in the synch circuit based on the BD synchsignal.
Using the BD signal generated based on the light from laser C, the DC controller PCB generates the BD synchsignal for laser C
and the BD synch signal for laser D.
2. Technical Explanation
49
Содержание imageRUNNER 2520 Series
Страница 1: ...Revision 9 0 imageRUNNER 2530 2525 2520 Series Service Manual ...
Страница 16: ...Product Overview 1 Product Lineup 7 Features 10 Specifications 11 Name of Parts 15 Operation 18 ...
Страница 62: ...No Part name 3 Laser unit 2 Technical Explanation 52 ...
Страница 119: ...Periodical Service 3 Consumable Parts and Cleaning Parts 110 Cleaning Parts 115 ...
Страница 125: ...Cleaning Parts Fixing guide Transfer guide 3 Periodical Service 115 ...
Страница 136: ...List of Sensors S18 S17 S16 TS2 HU1 S9 S8 S19 TS1 S11 S12 4 Disassembly Assembly 126 ...
Страница 165: ...5 Remove the idler gear 1 claw 1x 4 Disassembly Assembly 155 ...
Страница 172: ... 1 4 2 3 2 2 Remove the scanner motor 4 screws 4x 4 Disassembly Assembly 162 ...
Страница 186: ...3 Remove the RAM PCB Release the hook 4 Disassembly Assembly 176 ...
Страница 187: ...Adjustment 5 Overview 178 Basic Adjustment 180 Adjustment when Replacing the Parts 182 ...
Страница 209: ...Error Jam Alarm 7 Outline 200 Error Code 201 Jam Code 213 Alarm Code 219 ...
Страница 223: ...Jam Code Main Unit 550 sheet 1st cassette model S1 S5 S7 S19 S12 S42 S40 7 Error Jam Alarm 213 ...
Страница 231: ...Service Mode 8 Overview 222 Details of Service Mode 225 Remote UI Service Mode 302 ...
Страница 314: ...Example of report display 8 Service Mode 304 ...
Страница 387: ...APPENDICES Service Tools 378 General Circuit Diagram 379 ...