Samsung Electronics
5-31
Circuit Description
5-6-10 Cover Open S24V)
“Cover Open Sensor” is placed on the left top of
Printer. If the front cover is open or Developer unit
is placed in, the Printer does not operate.
5-6-11 Paper S5V)
There are three Sensors for the paper in the Printer:
1) Paper Empty Sensing
It is placed in Paper Cassette, and senses if there
are papers in Cassette.
2) Paper Feed Sensing
It is placed before Transfer process, and senses if
the paper is feeding. When the paper feeding is
sensed by it, Printer image data is output to LSU.
3) Paper Check
It is placed on the side of paper path. When
narrow paper(width is more than ???mm) is
feeding, the paper don’t touch the actuator, and it
is sensed the narrow paper. The Printer Engine
check resistance of Transfer Roller and the
feeding paper, if the feeding paper width is
narro w, THV according to the resistance outputs
higher voltage than wide paper.
4) Exit Sensing
It is placed in the exit of Printer, and senses the
paper exit.
5-6-12 LSU Control
LSU is composed of a polygon mirror motor and a
laser gun part. The polygon mirror motor starts
rotation by ‘PMOTOR” signal and reaches the
constant speed, “LREADY” signal outputs “High”
f
rom LSU. And when video image signal fro m
Video Controller is applied to Laser Gun, it fire the
laser beam. And the polygon mirror reflects and
scans the beam horizontally. When the scanned laser
beam reaches at the side of LSU, “HSYNC” outputs
one pulse. Video controller synchronizes this signal,
and outputs the left edge of image.
5-6-13 Toner Check
Toner sensor is placed in the rear of Developer unit
to check the toner supply. During warming up and
printing, the controller checks the output signal of
toner sensor. If toner is sufficient, the output signal
of †oner sensor is High, and if not, the output signal
is Low. When the output signal of toner sensor
remains low for more than 5 seconds, controller
judges. Toner is insufficient, and displays ‘Toner
low’. In toner low condition, the printer prints
approximately 300 sheets. Then the controller
displays ‘Toner Empty.
’
Содержание MSYS 5150
Страница 9: ...2 6 Samsung Electronics Specification Memo ...
Страница 16: ...3 26 Samsung Electronics Setup and Installing Memo ...
Страница 37: ...4 2 Samsung Electronics Theory of Operation ...
Страница 41: ...4 6 Samsung Electronics Memo Theory of Operation ...
Страница 116: ...Samsung Electronics 7 9 Maintenance Troubleshooting No Image ...
Страница 117: ...Samsung Electronics Maintenance Troubleshooting 7 10 ...
Страница 118: ...Samsung Electronics 7 11 Maintenance Troubleshooting All Black ...
Страница 119: ...7 12 Samsung Electronics Maintenance Troubleshooting Vertical White Line Band ...
Страница 120: ...Samsung Electronics 7 13 Maintenance Troubleshooting Dark Image ...
Страница 121: ...7 14 Samsung Electronics Maintenance Troubleshooting Background ...
Страница 122: ...Samsung Electronics 7 15 Maintenance Troubleshooting Ghost ...
Страница 123: ...7 16 Samsung Electronics Maintenance Troubleshooting Black Dot ...
Страница 124: ...Samsung Electronics 7 17 Maintenance Troubleshooting Horizontal Band ...
Страница 125: ...7 18 Samsung Electronics Maintenance Troubleshooting Irregular Density ...
Страница 126: ...Samsung Electronics 7 19 Maintenance Troubleshooting White Spot ...
Страница 127: ...7 20 Samsung Electronics Maintenance Troubleshooting Trembling at the End When OHP Printing ...
Страница 128: ...Samsung Electronics 7 21 Maintenance Troubleshooting Poor Fusing Grade ...
Страница 132: ...Samsung Electronics 7 25 Maintenance Troubleshooting No Power LCD NO display LED Off ...
Страница 133: ...Fuser Error 7 26 Samsung Electronics Maintenance Troubleshooting ...
Страница 134: ...Samsung Electronics 7 27 Maintenance Troubleshooting Paper Jam Mis feeding ...
Страница 135: ...7 28 Samsung Electronics Maintenance Troubleshooting Paper Jam Jam1 ...
Страница 136: ...Samsung Electronics Maintenance Troubleshooting 7 29 Engine Error ...
Страница 137: ...7 30 Samsung Electronics Maintenance Troubleshooting Memo ...
Страница 187: ...9 28 Samsung Electronics Electrical Parts List ...
Страница 189: ...11 Connection Diagram Samsung Electronics 11 1 ...
Страница 190: ...12 1 Main Circuit Diagram Samsung Electronics 12 1 12 Schematic Diagrams ...
Страница 191: ...Schematic Diagrams 12 2 Samsung Electronics Main Circuit Diagram ...
Страница 192: ...Main Circuit Diagram Samsung Electronics 12 3 Schematic Diagrams ...
Страница 193: ...Schematic Diagrams 12 4 Samsung Electronics Main Circuit Diagram ...
Страница 194: ...Main Circuit Diagram Samsung Electronics 12 5 Schematic Diagrams ...
Страница 195: ...Schematic Diagrams 12 6 Samsung Electronics Main Circuit Diagram ...
Страница 196: ...Main Circuit Diagram Samsung Electronics 12 7 Schematic Diagrams ...
Страница 200: ...12 3 Sensors Circuit Diagram Samsung Electronics 12 11 Schematic Diagrams ...
Страница 201: ...Schematic Diagrams 12 12 Samsung Electronics 12 4 Switch Circuit Diagram ...
Страница 202: ...Samsung Electronics 12 13 Schematic Diagrams 12 5 Joint Circuit Diagram ...
Страница 203: ...Schematic Diagrams 12 14 Samsung Electronics 12 6 OPE Circuit Diagram IF Active HIGH Logic IF Active LOW Logic ...
Страница 204: ...Samsung Electronics 12 15 Schematic Diagrams 12 7 PTL Circuit Diagram ...
Страница 205: ...Schematic Diagrams 12 16 Samsung Electronics 12 8 SCAN Circuit Diagram ...
Страница 206: ...Samsung Electronics 12 17 Schematic Diagrams 12 9 Engin Circuit Diagram ...
Страница 207: ...Schematic Diagrams 12 18 Samsung Electronics Engin Circuit Diagram ...
Страница 208: ...Samsung Electronics 12 19 Schematic Diagrams 12 10 LIU Circuit Diagram ...
Страница 210: ... Samsung Electronics Co Ltd Mar 1999 Printed in Korea P N JC68 00097A Rev 1 00 ELECTRONICS ...