Samsung ML-1510, ML-1700 series Alignment and Adjustments
ALIGNMENT & ADJUSTMENTS
66. Alignment and Adjustments
This chapter describes the main functions for service, such as the product maintenance method, the test output related to maintenance and repair, DCU using method, Jam removing method, and so on. It includes the contents of manual.
6.1 How to use DCU
6.1.1 DCU Setup
You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the connect the harness wire(10 pin/4 pin) to the CN3(ML-1750) or CN2(ML-1710/1510) of the Main control board.
ML SERIES DIAGNOSTIC CONTROL UNIT
|
|
|
|
|
|
04 |
DEV 300 |
|
|
DEV 350 |
DEV 350 |
|
|
|
|||||
|
|
|
|
|
|
05 |
LSU READY |
|
|
LSU MT & LD |
LSU MOTOR |
|
|
|
|||||
|
|
|
|
|
|
07 |
PAPER EMPTY |
|
PAPER WIDTH |
NEW CRU |
|
SELF |
|||||||
|
|
|
|
|
|
08 |
|
|
|
|
|
|
EXIT SENSOR |
FEED SENSOR |
|
TEST |
|||
|
STATUS |
|
09 |
COVER OPEN |
|
|
|
|
|
|
|
|
|||||||
|
|
10 |
COER HEATING |
|
PRINTING TEMP |
READY HEAT |
|
|
|
||||||||||
|
|
|
|
|
|
|
|
|
|
||||||||||
DIAGNOSTIC |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
ON |
|
|
OFF |
|
|
|
|
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
DIAGNOSTIC CODE |
|
|
|
|
|
|
|
|
STATUS CODE |
|
|
||||||
|
00 |
MAIN MOTOR OPERATING SYSTEM |
|
|
|
61 |
WARM UP |
|
|
|
|
|
|||||||
|
01 |
MAIN HIGH-VOLTAGE ON |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
02 |
TRNSFER HIGH-VOLTAGE (-)ON |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
03 |
THV(+) REFERANCE VOLTAGE |
|
|
|
|
|
00 |
READY (REGAL) |
|
|
|
|
|
|||||
|
04 |
DEV/SUPPLY HIGH-VOLTAGE ON/PTL ON |
|
|
01 |
READY (LETTER) |
|
|
|||||||||||
|
05 |
LSU OPERATING SYSTEM |
|
|
|
|
|
02 |
READY (A4) |
|
|
|
|
|
|||||
|
06 |
PICKUP CLUTCH ON |
|
|
|
|
|
03 |
READY (EXECUTIVE) |
|
|
||||||||
|
07 |
PEEMPTY/PWITH/NEW CRU TEST |
|
|
|
04 |
READY (B5) |
|
|
|
|
|
|||||||
|
08 |
FEED & EXIT SENSOR TEST |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
09 |
COVER OPEN SENSOR TEST |
|
|
|
|
|
20 |
PRINT START |
|
|
|
|
|
|||||
|
10 |
FUSER TEST |
|
|
|
|
|
30 |
FEED SENSOR ON |
|
|
||||||||
|
11 |
HOT BURN TEST |
|
|
|
|
|
40 |
FEED SENSOR OFF |
|
|
||||||||
|
12 |
CLEAN MODE PRINT |
|
|
|
|
|
50 |
PAPER OUT |
|
|
|
|
|
|||||
|
13 |
THV(+)TRIGGER, ALL HV & FAN ON |
|
|
|
69 |
SLEEP MODE |
|
|
|
|
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||
|
14 |
THV(+) REFERENCE ON |
|
|
|
|
|
|
|
|
|
|
|||||||
|
|
|
|
|
|
|
ERROR STATUS CODE |
|
|
||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
60 |
OPEN FUSER ERROR |
|
|
||||||
|
|
|
|
|
|
|
|
|
|
62 |
LOW TEMPERATURE ERROR |
|
|
||||||
|
|
|
|
|
|
|
|
|
|
68 |
OVER HEATING ERROR |
|
|
||||||
|
|
|
|
|
|
|
|
|
|
64 |
COVER OPEN ERROR |
|
|
||||||
|
|
|
|
|
|
|
|
|
|
70 |
NO PAPERR |
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
71 |
PAPER JAM 0 |
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
72 |
PAPER JAM 1 |
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
73 |
PAPER JAM 2 |
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
95 |
LSU NOT READY |
|
|
||||||
DIAGNOSTIC |
|
|
DOWN |
|
|
|
|
|
SHIFT |
|
|
STOP |
|||||||
|
|
|
|
|
|
|
|
||||||||||||
MODE |
UP |
|
|
|
|
|
|
|
|
|
ENTER |
||||||||
TO ENTER DIAGNOSTIC MODE, PUSH THREE BUTTONS SIMUL ANEOUSL
AND TURN THE PRINTER POWER ON.
Service Manual
Samsung Electronics
ALIGNMENT & ADJUSTMENTS
6.1.2 Code
Connect DCU to the printer and turn the power on. It show 7 Segment FND on the panel and each code tells the function of the printer.
1) Normal Code
While printing or warming up, it indicate the position of the paper
Code |
State |
Description |
|
|
|
61 |
Warm up |
The printer is on, the cover is open or close. |
00~05 |
Ready(kind of paper) |
The printer is ready, the paper is detected when the first paper is printed. |
|
|
00: Legal ,01: Letter ,02: A4 ,03: EXEC ,04: B5 ,05: Folio, 06: A5/A6 |
|
|
|
20, 21, 22 |
Print Start |
The engine controller received the print order from the video controller. |
|
|
20: 1st, 21: MP, 22: SCF |
|
|
|
30 |
Feed Sensor On |
The paper is passing out of the Feed Sensor. |
|
|
|
40 |
Feed Sensor off |
The paper has passed out of the Feed Sensor. |
50 |
Paper Out |
The paper has passed out of Exit Sensor. |
69 |
Sleep Mode |
The fuser power turned off to minimize the power consumption. |
|
|
|
|
|
|
2) Error Code
When detecting the malfunction, the printing is stopped to indicate error code.
Code |
State |
Description |
60, 62, 68 |
Fuser Error |
The error in the fuser occurred. There is a short circuit in the thermistor |
|
|
and the thermostat while printing, Low Temperature Error occurs. |
|
|
• 60: Open Fuser Error |
|
|
• 62: Low Heat Error |
|
|
• 68: Over Heat Error |
|
|
|
64 |
Cover Open |
The Printer Cover is open. |
|
|
|
65 |
CRU Error |
The Toner Cartridge not installed, |
70 |
No Paper |
No paper in the paper cassette. |
71Paper Jam 0 The front part of paper is jammed between pickup unit and Feed sensor.
72Paper Jam 1 The front part of paper is jammed between the Discharge sensor and
|
|
Feed sensor. |
73 |
Paper Jam 2 |
The front part of paper is jammed just after passing through the discharge |
|
|
sensor. |
|
|
|
76 |
Out Bin Full |
The Out bin is filled with paper. |
|
|
|
95 |
LSU Not Ready |
LSU Scanner Motor not ready or Hsync signal not output. |
Service Manual
Samsung Electronics
ALIGNMENT & ADJUSTMENTS
6.1.3 Self Diagnostic Mode
If Error code occurs due to malfunction of the printer, perform Self Diagnostic Mode to solve the problem.
The printer works only in the self-test mode to solve the malfunction problem.
To enter the self-test mode, turn the power on pressing the buttons of [Down], [Shift] and [Stop] at the same time.
Release the button within 2 or 3 seconds if 78 shows in the DCU. If 00 shows in the DCU, press the button [Up] or [Shift] to select the self+test , and press the button of [Enter] to operate. To stop, press the button of [shift] and [Enter] together.
Code |
Description |
|
|
00 |
Main Motor Operating System |
|
Only the main motor is in operation. |
|
|
01 |
Main High Voltage On(THV-) |
|
-1400 voltage output by MHV terminal. |
|
Caution : High voltage probe should be used. |
|
|
02 |
Transfer High Voltage(-)On(THV-) |
|
-1000 voltage output by MHV terminal. |
|
Caution : High voltage probe should be used. |
|
|
03 |
Transfer High Voltage (+)Reference on (THV +) |
|
+800 voltage output by MHV terminal. |
|
Caution : High voltage probe should be used. |
|
|
04 |
DEV/supply High Voltage : DEV/Supply High Voltage Test. |
|
The left one of the three LEDs in the self-test panel is on when DEV high voltage Supply |
|
high voltage output by each HV terminal(-500V). Press the [Up] button to switch the volt- |
|
age. The middle and right one of the three LEDs are on and -650 voltage output by DEV |
|
HV terminal. |
|
Caution : High voltage probe should be used. |
|
|
05 |
LSU Operating System |
|
The scanning motor of LSU is in operation, the right LED of the three buttons on. Press |
|
the [Up] button to Check LD. LD is functioning and the middle button is on. If the LD is |
|
normal, all LEDs are on. |
|
|
06 |
Pickup clutch on |
|
The Solenoid in the printer is in operation. To stop the operation, Press the button [shift] |
|
and [Enter] together. |
|
|
Service Manual
Samsung Electronics
ALIGNMENT & ADJUSTMENTS
Code |
Description |
|
|
07Paper Empty Sensor Test :
If activate the Actuator of the PEMPTY Sensor, the left and right of the three LEDs are on.
Paper Empty Sensor ON/OFF |
1st LED ON/OFF |
08Feed & Exit Sensor Test
Test the Feed sensor and Discharge sensor in the same way as '07'.
Feed Sensor ON/OFF |
2nd LED ON/OFF |
Exit Sensor ON/OFF |
3rd LED ON/OFF |
09Cover Open Sensor Test
Test the Cover Open Sensor in th same way as code '07’
Cover Open Sensor ON/OFF |
1st LED ON/OFF |
10Fuser Test
If the [Enter] button pressed, the right LED is on and temperature of the fuser is up to READY Mode. If the [Up] button pressed, the middle LED is on and temperature of the fuser is up to Printing Mode.
If you press the button once more, the left LED is on and temperature of the fuser is up to overheat Mode.
11Hot Burn Test
If the [enter] button pressed, the printer is continuously printing without detection. Turn the power off to stop operation.
12Cleaning Mode Print Mode
Print the paper to clean the OPC Drum in the Cartridge.
13THV(+) TRIGGER. ALL HV :
All high voltage output by each HV terminal and LSU and the fan is in operation. In this mode, electronic resistance of transfer roller and high voltage is detected.
14PTL Test :
Indicates the function of the PTL, same method of the code ‘07’.
15Fan Test :
Indicates the function of the Fan, same method of the code ‘07’.
16Manual Pickup Test :
Indicates the function of th Manual Pickup, same method of the code ‘07’.
17Manual Sensor Test :
Indicates the function of the Manual Sensor, same method of the code ‘07’.
Service Manual
Samsung Electronics
ALIGNMENT & ADJUSTMENTS
No. |
Functi on |
Enter |
|
Up/Down |
|
Stop |
Remar k |
||
00 |
Motor |
Motor Run |
|
|
|
|
|
Motor Stop |
|
01 |
MHV |
Mhv On |
|
|
|
|
|
Mhv Off |
-1550V |
02 |
THV(-) |
Thv Negative On |
|
|
|
|
|
Thv Negative Off |
|
03 |
THV(+) |
Thv On |
|
|
|
|
|
Thv Off |
+1300V |
04 |
DEV |
Dev On |
Supply |
|
|
|
DEV |
Dev Off |
|
|
|
|
|
|
|
||||
0 : -630V |
|
0 |
: -430V |
|
|||||
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
05 |
LSU |
LSU Run |
On |
|
Off |
Ready |
LSU Stop |
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
06 |
PickUp |
Pickup On |
|
|
|
|
|
Pickup Off |
|
07 |
PEmpty |
|
Paper Empty |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
08 |
Sensor |
|
|
|
Exit |
Feed |
|
|
|
|
|
|
|
|
|
|
|||
09 |
Cover |
|
Cover Open |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
10 |
Fuser |
Fuser On |
|
|
|
|
|
Fuser Off |
|
11 |
HotBur n |
HotBurn On |
|
|
|
|
|
|
|
12 |
Clean Print |
Clean Printing |
|
|
|
|
|
|
|
13 |
Thv |
|
|
|
|
|
|
|
|
Refer ence |
|
low |
adequate |
high |
|
|
|||
|
|
|
|
||||||
14 |
PTL |
PTL On |
|
|
|
|
|
PTL Off |
|
15 |
FAN |
Fan On |
|
|
|
|
|
Fan Off |
|
16 |
Manual |
Manual Pickup On |
|
|
|
|
|
Manual Pickup Off |
|
PickUp |
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
17 |
Manual |
|
|
|
|
|
|
|
|
Sensor |
|
Manual Sensor |
|
|
|
|
|
||
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
6.1.4 Self Test Button
If the Self-Test button pressed, vertical lines are printed.
Turn the power on while pressing this button, '89' shows in the DCU and the printer is warming up. After warming-up the printer is in READY Mode, and '88' shows in the DCU. In this mode, without any detection, the printer begins printing(trial printing and data from the PC). It is convenient to use this mode when the engine malfunction is detected in the control board.
Service Manual
Samsung Electronics
Loading...