44. Alignment and Adjustments
Contents
1. Alignment and Adjustments 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 PSamsuncd This page is a temporary demonstration page and will be changed ___ML 16xx Series _ Monochrome Laser Printer DigitAllperformance E Up to 17ppm Letter 16ppm A4 print speed ML 1610 ML 1615 Series Print speed will be affected by operating system used computing performance application software connecting method media type media size and job complexity True 600 x 600 dpi print resolution E 150 MHz processor E 2 MB Memory ML 1610 Series E 8 MB Memory ML 1615 Series 150 sheet paper cassette tray DigitAllvalue E One touch Toner Save Button expand the life of the toner cartridge by 40 E One touch Cancel Button E Great Price Great Performance DigitAllcompatibility E Windows 98 2000 Me XP ML 1610 Series E Windows 95 98 NT4 0 2000 Me XP ML 1615 Series E Various Linux OS including Red Hat Caldera Debian Mandrake Slackware SuSE and Turbo Linux USB 12. 4 6 How to use DCU 4 6 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 CN1 ML 1610 of the Main control board a SERIES DIAGNOSTIC CONTROL UNIT DEV 300 DEV 350 DEV 350 LSU READY LSU MT amp LD LSU MOTOR PAPER EMPTY PAPER WIDTH NEW CRU O EXIT SENSOR FEED SENSOR STATUS COVER OPEN O COER HEATING PRINTING TEMP READY HEAT DIAGNOSTIC DIAGNOSTIC CODE STATUS CODE MAIN MOTOR OPERATING SYSTEM WARM UP MAIN HIGH VOLTAGE ON TRNSFER HIGH VOLTAGE ON THV REFERANCE VOLTAGE READY REGAL DEV SUPPLY HIGH VOLTAGE ON PTL ON READY LETTER LSU OPERATING SYSTEM READY A4 PICKUP CLUTCH ON READY EXECUTIVE PEEMPTY PWITH NEW CRU TEST READY B5 FEED amp EXIT SENSOR TEST COVER OPEN SENSOR TEST PRINT START FUSER TEST FEED SENSOR ON HOT BURN TEST FEED SENSOR OFF CLEAN MODE PRINT PAPER OUT THV TRIGGER ALL HV amp FAN ON THV REFERENCE ON SLEEP MODE ERROR STATUS CODE OPEN FUSER ERROR LOW TEMPERATURE ERROR OVER HEATING ERROR COVER OPEN ERROR NO PAPERR PAPER JAM O PAPER JAM 1 PAPER JAM 2 LSU NOT READY DIAGNOSTIC MODE UP C O C TO ENTER DIAGNOSTIC MODE PUSH THREE BUTTONS SIMUL ANEOUSL AND TURN THE PRINTER POWER ON Cee tena ElSGHOICS Samsung Electronics Alignment and Adjustments 4 6 2 Code Connect DCU to the printer and turn the power on It show 7 Segment FND
3. e Ensure that the Toner Save mode is off e Clear general printing problems e Install a new toner cartridge and check the print quality eee nr ten ElSGHONICS Samsung Electronics
4. 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 e 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 71 Paper Jam 0 The front part of paper is jammed between pickup unit and Feed sensor 72 Paper Jam 1 The front part of paper is jammed between
5. 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 Samsung Elechonss ee T Samsung Electronics Alignment and Adjustments 4 6 3 Self Diagnostic Mode lf 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 1300 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 o
6. 1 interface ML 1610 Series E EEE1284 and USB 1 1 interfaces ML 1615 Series www samsungprinter com SAMSUNG DIGIT everyone s Imvitedw All other trademarks are the property of their respective owners Samsung Electronics All nghts reserved Samsung Elechonss ee ne 4 Samsung Electronics Alignment and Adjustments 4 2 Control Panel 4 2 1 OP Panel On Line Error O Toner Save Cancel 4 2 2 On Line Error and Toner Save LEDs LED Description If the On Line Error lights green the printer is ready to print On Line Error 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 Toner Save If you press this button once again this LED is off and the Toner Save mode is disabled Onne Enar If the On Line Error and Toner Save LEDs blink your system has some problems Toner Save 42 E A N
7. AA Samsung Electronics 4 2 3 Cancel button LED Printing demo page Manual feeding Alignment and Adjustments Description In Ready mode press and hold this button for about 2 seconds until all LEDs blink slowly and release 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 e ee rl 4 Samsung Electronics Alignment and Adjustments 4 3 Consumables and Replacement Parts The cycle period outlined below is a general guideline for maintenance The example list is for an average usage of 50 transmitted and received documents per day Environmental conditions and actual use will vary these factors The cycle period given below is for reference only COMPONENT REPLACEMENT CYCLE Pick up Roller 50 000 Pages Transfer Roller 50 000 Pages 50 000 Pages Toner Cartridge 2 000 Pages Sales 1 000 Pages Initial 4 4 LED Status Error Message ERROR LED Status DCU CODE Open Fuser Error The E
8. anual Pickup Off PickUp Manual Sensor Manual Sensor lt DCU Function Table gt Fuser Fuser On HotBurn HotBurn On Clean Print Clean Printing Thv Reference O o 02 os Sensor 12 14 4 6 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 4 10 ee teu ECHOICE Samsung Electronics Alignment and Adjustments 4 7 Paper Path SMPS Fuser Toner Cartridge LSU Exit Roller OPC Pick Up Roller KNOCK UP PLATE KNOCK UP PLATE DOWN ASS Y HOLDER PAD Feed Sensor 0 MAIN PBA O SMPS O HVPS 1 After taking order the printer feeds the printing paper from the cassette or manual feeder 2 The fad paper passes the paper feeding sensor Jam 0 occurs if the sensor is not operated after certain time passes 3 The paper passed the paper feeding sensor moves to the paper exit sensor via printing process Jam 1 occurs if the sensor is not operated after certain time passes 4 The paper passed the paper exit sensor moves out from the set Jam 2 occurs some
9. f the three LEDs in the self test panel is on when DEV high voltage Supply high voltage output by each HV terminal Press the Up button to switch the voltage The middle and right one of the three LEDs are on and 350 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 Dee teem ESGHONICS Samsung Electronics Alignment and Adjustments Code Description 07 Paper 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 08 Feed amp 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 09 Cover Open Sensor Test Test the Cover Open Sensor in th same way as code 07 Cover Open Sensor ON OFF 1st LED ON OFF 10 Fuser 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 bu
10. rror 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 44 E A NTA Samsung Electronics Alignment and Adjustments 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 mm black spot 3 Supply Roller light or dark horizontal image band 4 Developing Roller horizontal image band 5 Transfer Roller image ghost 6 Heat Roller Black spot and image ghost 7 Pressure Roller black spot on the backside OPC Drum amp Transfer Roller 2 Charge Roller QO Heat Roller 3 Supply Roller 7 Pressure Roller O Developing Roller e ee el S Samsung Electronics Alignment and Adjustments
11. time after if the tailing edge of the paper is not coming out from the set after the leading edge of paper passes the paper exit sensor e re nl Samsung Electronics Alignment and Adjustments 4 7 1 Clearing Paper Jams Occasionally paper can be jammed during a print job Some of causes include e The tray is overfilled e The front cover has been opened during a print job e Paper that does not meet paper specifications has been used e Paper that is outside of the supported size range has been lf a paper jam occurs the On Line Error LED on the control panel lights red Find and remove the jammed paper If it is invisible look inside the printer 4 7 2 Inthe Paper Exit Area 1 If the paper jams as it exits to the output tray and a long portion of the paper is visible pull the paper straight out When you pull the jammed paper if there is resistance and the paper does not move immediately stop pulling Continue with the next step 2 Open the top cover and the inner cover Service Manual Samsung Electronics Alignment and Adjustments 3 Loosen the paper if it is caught in the heat rollers Then pull the paper gently out 4 Close the inner cover and the top cover 5 Open and close the front cover Printing can be resumed Samsung Elechonss re 1 Samsung Electronics Alignment and Adjustments 4 7 3 In the Paper Feed Area 1 Remove any missfeed paper by p
12. tton once more the left LED is on and temperature of the fuser is up to overheat Mode 11 Hot Burn Test If the enter button pressed the printer is continuously printing without detection Turn the power off to stop operation 12 Cleaning Mode Print Mode Print the paper to clean the OPC Drum in the Cartridge 13 THV 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 14 PTL Test ML 1610 not design Indicates the function of the PTL same method of the code 07 15 Fan Test Indicates the function of the Fan same method of the code 07 16 Manual Pickup Test Indicates the function of th Manual Pickup same method of the code 07 17 Manual Sensor Test Indicates the function of the Manual Sensor same method of the code 07 Samsung Hlechonss ee nl S Samsung Electronics Alignment and Adjustments Enter Remark No Function Stop Motor Run Mhv On Motor Stop Mhv_ Off Motor MHV THV E U 1300V 1000V Thv Negative On Thv Negative Off THV Thv On Thv Off 1300V DEV 0 350V Off Ready DEV Dev On Dev Off 350V LS LSU Run LSU Stop 020mV O 5 PickUp Pickup On Pickup Off Paper Empty PEmpty Cover Open Cover Fuser Off low adequate high PTL pre Om fC oP FAN fanon frm Manual Manual Pickup On M
13. ulling it out by the visible edge from the tray Make sure that all of the paper is properly aligned in the tray 2 Open and close the front cover Printing can be resumed 4 7 4 Around the Toner Cartridge 1 Open the front cover Service Manual Samsung Electronics Alignment and Adjustments 2 Pull the toner cartridge out and remove it from the printer 3 Gently pull the paper toward you 4 Check that there is no other paper in the printer 5 Reinstall the toner cartridge and then close the cover Printing can be resumed Samsung Elechonss ee E Samsung Electronics Alignment and Adjustments 4 7 9 Tips for Avoiding Paper Jams By selecting the correct paper types most paper jams can be avoided e Ensure that the adjustable guides are positioned correctly e Do not overload the tray e Do not remove the paper from the tray while printing e Flex fan and straighten the paper before loading e Do not use creased damp or highly curled paper e Do not mix paper types in the input tray e Use only recommended print media e Ensure that the recommended print side is facing up when loading paper into the input tray 4 7 6 Solving Print Quality Problems Print Quality Checklist Print quality problems can be resolved by following the checklist below e Redistribute toner in the toner cartridge e Clean the inside of the printer e Adjust the print resolution from the printer properties
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