VI-5
Possible cause
Step
Check
Result
Remedy
Development
input signal
error
10
Do the pins 3, 4 and 5 of the connector
P6 on the main PCB have the following value
respectively when a sheet of paper is fed from
the MP tray?
P6-3 pin (DBAC) --- Change in voltage from
6V approx. to 0V just when a sheet of paper is
fed from the registration unit.
P6-4 pin (DBDC) --- Change in voltage from
9V approx. to 0V just when a sheet of paper is
fed from the registration unit.
P6-5 pin (DNSTY) --- Change in voltage to
2.5V just when a sheet of paper is fed.
No
Replace the laser unit or
the harness.
Dirt on power
supply terminal
11
Is there any dirt on the cartridge side
development terminal of the transfer unit and
on the terminal of the high-voltage power
No
Clean the contacts to
assure the continuity.
Failure in the
development
high-voltage
circuit
supply development unit? (is there continuity
between them?)
Yes
Replace the high-voltage
power supply PCB assy.
I-2 Dark
Possible cause
Step
Check
Result
Remedy
Density setting
1
Does printed image improve when density
setting is changed on the control panel?
Yes
Adjust the proper setting
on the control panel.
EP-ED HC
cartridge
2
Does printed image improve when the EP-ED
HC cartridge is replaced?
Yes
Replace the EP-ED HC
cartridge.
Dirt on the
grounding
terminal
3
Does printed image improve when continuity
is improved by cleaning the EP-ED HC
cartridge grounding terminal and the printer
unit grounding terminal?
Yes
Clean the contacts to
assure the continuity.
Charging input
signal error
4
Do the pins 1, 2 and 5 of the connector P6
on the main PCB have the following value
respectively when a sheet of paper is fed from
the MP tray?
P6-1 pin (HV1AC) --- Change in voltage from
6V approx. to 0V just when a sheet of paper is
fed.
P6-2 pin (HV1DC) --- Change in voltage from
9V approx. to 0V just when a sheet of paper is
fed.
P6-5 pin (DNSTY) --- Change in voltage to
2.5V just when a sheet of paper is fed.
No
Replace the main PCB
assy or the harness.
Dirt on power
supply terminal
5
Is there any dirt on the cartridge side charging
terminal of the transfer unit and on the terminal
of the high-voltage power supply charging unit?
No
Clean the terminal to
assure the continuity.
Failure in the
charging high-
voltage circuit
(is there continuity between them?)
Yes
Replace the high-voltage
power supply PCB assy.
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: ......