Alignment and Adjustments
Samsung Electronics
Service Manual
4-1
4
4
4. Alignment and Adjustments
4.1 Sample Pattern
This product has the several sample patterns for maintenance. With the sample patterns, check the
existence of the abnormality. The patterns help to regularly maintain the product.
4.1.1 Printing a Demo Page
Print a demo page or a configuration sheet to make sure that the printer is operating correctly.
1) Hold down the Cancel button for about 2 seconds to print a demo page.
2) The Demo page or the configuration sheet shows the printer’s current configuration.
ML-20XX Series
Monochrome Laser Printer
Up to 22ppm(Letter)/20ppm(A4) print speed: ML-2010/ML-2015 Series
* Print speed will be affected by operating system used, computing performance,
application software, connecting method, media type, media size, and job complexity.
DigitAIIperformance
True 600 x 600 dpi print resolution
150NHz processor
8MB Memory
One touch Toner Save Button - expand the life of the toner cartridge by 40%
DigitAIIValue
One touch Cancel Button
Great Price, Great Performance
150 sheets paper cassette
Windows 98/2000/Me/XP: ML-2010 Series
DigitAIIcompatibility
Various Linux OS including Red Hat, Caldera,
Debian, Mandrake, Slackware, SuSE, and Turbo Linux
USB 1.1 interfaces: ML-2010 Series
www.samsungprinter.com
**AII other trademarks are the property of their respective owners.
Samsung Electronics, AII rights reserved.
e v e r y o n e ’ s i n v i t e dTM
R
Windows 95/98/NT4.0/2000/Me/XP: ML-2015 Series
4.2.2 On Line/Error and T oner Save LEDs
Samsung Electronics
Service Manual
Alignment and Adjustments
4-2
4.2 Control Panel
4.2.1 OP Panel
If the On Line/Error lights green, the printer is ready to print.
If the On Line/Error lights red, the printer is experiencing an error,
such as jammed paper, no paper, the open cover or the empty toner cartridge.
If you press the Cancel button while the printer is receiving data,
the On Line/Error LED blinks red to cancel printing.
In Manual Feed mode, if there is no paper in the tray, the OnLine/Error LED blinks red.
Load paper into the tray and the LED stops blinking.
If the printer is receiving data, the On Line/Error LED slowly blinks green.
If the printer is printing the received data, the On Line/Error LED blinks green fast.
If you press the Cancel button in Ready mode, this LED is on and the Toner Save
mode is enabled.
If you press this button once again, this LED is off and the
Toner Save mode is disabled.
If the On Line/Error and Toner Save LEDs blink, your system has some problems.
LED Description
Alignment and Adjustments
Samsung Electronics
Service Manual
4-3
4.2.3 Cancel button
Printing demo page In Ready mode, press and hold this button for about 2 seconds until
all LEDs blink slowly, and release.
Manual feeding Press this button each time you load a sheet of paper in the
tray, when you select Manual Feed for Source from your software application.
Canceling print job Press this button during printing. The On Line/Error LED blinks while the
print job is cleared from both the printer and the computer, and then return to
Ready mode. This may take some time depending on the size of the print job.
In Manual Feed mode, you can’t cancel the print job by pressing this button.
Toner Save mode on/off In Ready mode, press this button to turn the Toner Save mode on or off.
LED Description
Samsung Electronics
Service Manual
Alignment and Adjustments
4-4
COMPONENT REPLACEMENT CYCLE
Pick-up Roller 50,000 Pages
Transfer Roller 50,000 Pages
Fuser 50,000 Pages
Toner Cartridge 2,000 Pages(Sales), 1,000 Pages(Initial)
4.3 Consumables and Replacement Parts
The cycle period outlined below is a general guideline for maintenance.
A printer can’t transmit or receive documents this line is for fax machines.
Environmental conditions and actual use will vary these factors.
The cycle period given below is for reference only.
4.4 LED Status Error Message
ERROR LED Status DCU CODE
Open Fuser Error The [Error] LED (red) and the [Toner Save] LED are simultaneously 60
flashing every one-second.
Over Heat Error The [Error] LED (orange) and the [Toner Save] LED are 68
simultaneously flashing every one-second.
Low Heat Error The [Error] LED (red) and the [Toner Save] LED are simultaneously 62
flashing every 4 seconds.
LSU not Ready Error The [Error] LED (green) and the [Toner Save] LED are 95
(Pmotor Error) simultaneously flashing every one-second.
LSU Not Ready Error The printing is stop in the fad status, and the [Error] LED (green) and 96
(HSYNC Error) the [Toner Save] LED are simultaneously flashing every 4 seconds.
Alignment and Adjustments
Samsung Electronics
Service Manual
4-5
BIN PATH
1
2
3
4
OPC Drum
Charge Roller
Supply Roller
Developing Roller
5
6
7
Transfer Roller
Heat Roller
Pressure Roller
4.5 Periodic Defective Image
If the delinquent image regularly occurs in the printed-paper, it is due to delinquent or damaged roller.
Refer to the table in below and check the condition of the roller.
No Roller Defective image Typical defect
1 OPC Drum 75.5mm white spot on black image or black spot
2 Charge Roller 37.7mm black spot
3 Supply Roller 47.5mm light or dark horizontal image band
4 Developing Roller 35.2mm horizontal image band
5 Transfer Roller 46.2mm image ghost
6 Heat Roller 63.9mm Black spot and image ghost
7 Pressure Roller 75.4mm black spot on the backside