Controller System
Main Controller
The Main Controller receives print information from the external equipment (host computer, etc.) via the interface cable.
This print information includes commands to exchange the status or unique information of a printer and the PDL data of the image
data.
The PDL data is converted to a bitmap and then sent to the DC Controller.
The external equipment can view the printer status using a two-way interface.
Printer
Driver
PDL Data
Main Controller
Compression
/ Extension
circuit
DC Controller
BitMap expansion
J No.
Connection destination
Electric code
Name
J No.
J120
UN4
Control Panel PCB
J1
J128
UN6
Memory PCB
J870
J16
-
SOFT-ID PCB
J871
J4
-
USB (front)
-
J2802
UN1
Power Supply PCB
J70, J55
J201
UN2
DC Controller PCB
J97
J19
UN8
Sleep Interface PCB
J804
J2801
-
J1400
-
Sublog Board
-
J19
J2801
J201
J2802
J120
J128
J16
J4
J1400
2. Technical Explanation (Device)
36
Summary of Contents for LBP351 Series
Page 1: ...Revision 4 0 LBP351 352 Series Service Manual ...
Page 12: ...Product Overview 1 Product Lineups 6 Specification 7 List of Parts 11 ...
Page 140: ...3 Remove the Main Drive Unit 1 4 Screws 2 1 2 2 2 2 4x 5 Parts Replacement and Cleaning 133 ...
Page 147: ...Adjustment 6 Actions after Replacement 141 ...
Page 149: ...Troubleshooting 7 Test Print 143 Troubleshooting 147 Obtaining Debug Log 149 ...
Page 160: ...Error Jam Alarm 8 Overview 154 Error Code Details 155 Jam Code 160 Alarm Code 163 ...
Page 171: ...Service Mode 9 Overview 165 Service Mode 169 ...