III-9
3. DISPLAY
CIRCUIT
3.1 Outline
The control panel of this printer has four LED lamps, one LCD display, and eight
switches.
The control panel is connected to the Main PCB and its functions are as follows:
(1)
The LCD shows the printer status and error message in alpha-numeric characters.
(2)
The LED lamps indicate the operating conditions of the printer.
(3)
The printing mode and LCD brightness can be changed by switches.
Main PCB
LCD
PAD4-PAD7
LCDE, LCDRS
LED4 (ONLINE)
LED5 (ONLINE)
LED2 (DATA)
SW1 (FORMFEED)
SW4 (SEL)
SW2 (UP)
SW5 (FONT)
SW3 (DOWN)
SW6 (SET)
LED1 (READY)
LED3 (ALARM)
SW8 (CONTINUE)
SW7 (MODE)
Figure 3.8 Display Circuit
3.2 Operation
Indicators on the control panel (LED lamps and LCD) are controlled by the video
controller circuit.
All the switch signals are input to the video controller circuit.
Signals Descriptions:
LED1 - LED4
On-off control for the respective LED lamps.
Illuminating when Low and extinguished when High.
PAD4 - PAD7 LCD control signal.
LCDRS
A signal to distinguish PAD4 - PAD7 into command and data.
LCDE
A signal to start the operation.
SW1 - SW8
Input signals from the switches.
Going Low when each switch is pressed.
Содержание 2060
Страница 1: ...MECHANICS ELECTRONICS SERVICE MANUAL LASER PRINTER ...
Страница 41: ...III 8 A B F C D E 1 E 2 E 3 E 4 E 5 F Figure 3 7 Paper Feed Size SW PCB Circuit ...
Страница 130: ...VII 16 Test for memory MEMORY DISPLAY MEMORY DEBUG MEMORY TEST exit MENU ...
Страница 137: ...Appendix A 2 Paper Feed Size SW PCB Circuitry Diagram 1 1 CODE UK4067000 B512011 012 CIR NAME A 2 ...
Страница 138: ...Appendix A 3 Main PCB Circuitry Diagram 1 7 CODE UK4058000 B512006 CIR 1 7 NAME A 3 ...
Страница 139: ...Appendix A 4 Main PCB Circuitry Diagram 2 7 CODE UK4058000 B512006 CIR 2 7 NAME A 4 ...
Страница 140: ...Appendix A 5 Main PCB Circuitry Diagram 3 7 CODE UK4058000 B512006 CIR 3 7 NAME A 5 ...
Страница 141: ...Appendix A 6 Main PCB Circuitry Diagram 4 7 CODE UK4058000 B512006 CIR 4 7 NAME A 6 ...
Страница 142: ...Appendix A 7 Main PCB Circuitry Diagram 5 7 CODE UK4058000 B512006 CIR 5 7 NAME A 7 ...
Страница 143: ...Appendix A 8 Main PCB Circuitry Diagram 6 7 CODE UK4058000 B512006 CIR 6 7 NAME A 8 ...
Страница 144: ...Appendix A 9 Main PCB Circuitry Diagram 7 7 CODE UK4058000 B512006 CIR 7 7 NAME A 9 ...
Страница 145: ...Appendix A 10 Control Panel PCB Circuitry Diagram 1 1 CODE UK4077000 B512005 CIR NAME A 10 ...
Страница 146: ...Appendix A 11 Laser LD PCB Circuitry Diagram 1 1 CODE UK3253000 B48K253 CIR NAME A 11 ...
Страница 148: ...June 98 54T046NE0 HL2060 ...
Страница 149: ...LASER PRINTER PARTS REFERENCE LIST HL 2060 ...
Страница 160: ...8 CHASSIS MODEL HL 2060 54T U04 500 4 3 10 5 7 7 7 8 6 9 20 12 11 13 18 18 14 15 16 17 18 18 1 2 19 9 ...
Страница 168: ...14 PACKING MATERIALS MODEL HL 2040 54T U04 930 2 2 3 9 6 7 5 8 10 1 11 4 17 ...
Страница 171: ......