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Alignment and Adjustmens
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6. Alignment and Adjustments
This chapter describes some of the main service procedures including: Using the EDC mode; Clearing paper jam and test patterns. Much of this chapter is also included in the user's guide.
6.1. Control Panel
6.1.1 Overview
- The CLP-300 printers do not have LCD panel which is used in other color model printers. On the contrary to other models of color printers, they show the status of the printer only with their LEDs. - The CLP-300 printers have 2 keys and 6 LEDs. The `User Interface' module handles the processing of the `Key Press' and `Led control' at different states of the machine.
6.1.2 Architecture
KEY (2 key): Stop key, Black only key LED (6 LEDs): 4 LED for CMYK toners : toner-low(cyan, magenta, yellow, black) LEDs 1 LED for status : ready (green) or error(red) status LED (two color LED) 1 LED for Black only: If Black only key is pressed, Black only led glows.
Stop Status
Black Only
CLP-300
6.1.3 Data and Control Flow
User interface (panel) is made up of - KEY input detection & process - LED control The initial process to use the panel checks register°Øs values of key and LED. If user input key value, the operation to be defined by key value is processed and the LED operation to be defined by printer status is controlled.
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6.2 Function
6.2.1 KEY Function
There are two keys present. The one is Stop key and the other is Black only key. If users input key value, the key input is transferred via GIP (General Input Port) and the operation to be defined by key value is processed.
6.2.1.1 Functions Stop key function is made up of - Demo page/Configuration sheet printing function - Job cancels function - Start manual feeding function - Firmware downloads mode function Black only key function is made up of - Change printer mode to Black-only mode function - Black only LED light function
6.2.1.2 Detail Description KEY input detection & process order 1) User KEY input 2) KEY input detection : If the key input is detected when the key input check per timer tick 10ms, The 10ms interrupt service routine sends the key detection event to panel task. 3) KEY input process Stop key input process : After the panel task is received the Stop key detection event, it checks the engine error status two times and process the operation to be defined by key value. - Demo page/Configuration sheet function This button will have multiple functions when the printer is in idle state. Demo page printing Press and hold this button for about 2 seconds until the control panel lights blink slowly to print a demo page. Configuration sheet printing Press and hold this button for about 6 seconds until the control panel lights blink rapidly to print a configuration sheet. - Job cancels function When the printer is printing an active printing job, press and holds this button until the control panel lights blink to cancel a job the printer is currently except the manual job. - Start manual feeding function When you select manual feed for paper source, press this button each time you feed a sheet of paper manually. The application of manual feeding function in CLP-300 will be determined
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- Firmware downloads mode function Turn on the printer at the same time that the button is pressed. If all LEDs scroll, release the button and download the firmware ROM file via USB port Black only key input process : After the panel task is received the Black only key detection event, it changes printer mode to Black only mode and notifies driver that the printer mode is changed to Black only mode. If printer mode is Black only mode, driver makes printer image by only mono excepting color and the Black only LED glows.
6.2.2 LED Function
There are six LEDs present. Status led indicate the error/online status of the printer in idle mode. In error mode, the status LED glows by red color and in ready mode, it glows by green color. The other four LEDs indicate the toner status. If the black toner needs to change, the toner-low (black) LED glows and if the color (yellow, magenta, cyan) toners need to change, the toner-low (yellow, magenta, cyan) LED glows. Black only LED indicate the printer mode. If the users press the Black only button, the printer mode changes to Black only mode and Black only LED glows.
6.2.2.1 Functions LED function is made up of - Ready/Printing status display - Error status display - Toner low status display - Black only status display
6.2.2.2 Detail Description LED control order 1) Control LED according to current printer state : After the panel task is received each event, the LED operation is controlled by current printer status. 2) Write LED value to GOP (General Output Port)
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LED behavior Status LED (Green/Red) Green LED ON Green LEDS LOWLY BLINK Green LED FAST BLINK Red LED BLINK Black-only LED N/A N/A N/A N/A Toner-low (CMYK)LEDs N/A N/A N/A N/A Status Ready to receive the data. Receiving the data from the host. Printing the page. Paper source is set to MANUAL . Need to push the button to start the printing Out of paper Cover open Paper jam Service error ( LSU or Fuser error) Black toner needs to change Cyan toner needs to change Magenta toner needs to change Yellow toner needs to change Black only key is pressed
Red LED ON Red LED ON Red LED ON Green/Red BLINK N/A N/A N/A N/A N/A
N/A N/A N/A BLINK N/A N/A N/A N/A ON
N/A N/A N/A CMYK BLINK Toner-low(black) ON Toner-low(cyan) ON Toner-low(magenta) ON Toner-low(yellow) ON N/A
Service Error LED Operation All LEDs blink the each time interval. Service Error Fuser Error Open Fuser Error No Heat Error Over Heat Error Scanner Error (=LSU Error) P Motor Error H Sync Error LED operation All LEDs (Toner low LEDs, Status (Red) LED, Black only LED) blink a time interval of 1 second. All LEDs (Toner low LEDs, Status (Red) LED, Black only LED) blink a time interval of 4 seconds. All LEDs (Toner low LEDs, Status (Green/Red) LED, Black only LED) blink a time interval of 1 second. All LEDs (Toner low LEDs, Status (Green) LED, Black only LED) blink a time interval of 1 second. All LEDs (Toner low LEDs, Status(Green) LED, Black only LED) blink a time interval of 4 seconds.
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Assert Error LED Operation The panel LED operation display the line number of assert error occurrence. Line number start & end 1 2 3 4 5 6 7 8 9 LED operation All LEDs(Toner low LEDs, Status(Red) LED, Black only LED) turn ON for approximately 2 seconds and then All LEDs turn OFF for approximately 3 seconds. After Status (Red) LED blinks one time, Toner low LEDs blink one time. After Status (Red) LED blinks two times, Toner low LEDs blink one time. After Status (Red) LED blinks three times, Toner low LEDs blink one time. After Status (Red) LED blinks four times, Toner low LEDs blink one time. After Status (Red) LED blinks five times, Toner low LEDs blink one time. After Status (Red) LED blinks six times, Toner low LEDs blink one time. After Status (Red) LED blinks seven times, Toner low LEDs blink one time. After Status (Red) LED blinks eight times, Toner low LEDs blink one time. After Status (Red) LED blinks nine times, Toner low LEDs blink one time.
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6.3 Jam Removal
When a jam occurs while printing a jam message is displayed on the control panel. * Jam0 In Tray 1: Paper jam in the main cassette. * Jam0 In MP Tray: Paper jam in the MP tray * Jam Inside Printer: Jam 1, Paper is jammed inside the printer. * Jam In Exit Area: Jam2, Paper is jammed in the exit area when ejecting paper.
CAUTION: When removing jammed paper, always pull it firmly and evenly without any sudden jerks. If at all possible, remove the paper as a single sheet. If the paper tears ensures ALL paper fragments are removed. Any fragments left inside the machine will cause it to jam again.
6.3.1 Clearing Paper Jams
NOTE: When removing paper that is jammed in the printer, if possible always pull the paper in the direction that it normally moves so as not to damage internal components. Always pull firmly and evenly; do not jerk the paper. If the paper tears, ensure that all fragments of paper are removed; otherwise a jam will occur again. If a paper jam occurs, the Status LED on the control panel lights red. Find and remove the jammed paper. To resume printing after clearing paper jams, you must open and close the front cover or rear cover. 1. To remove the jammed paper, open the rear cover. 2. Carefully remove the paper by pulling in the direction as shown below. Most of the jammed paper can be removed in this step.
If you cannot find the jammed paper, or if there is any resistance removing the paper, stop pulling and go to the next step.
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3. Close the rear cover and then open the top cover.
5. Close the top cover. Make sure that it is securely latched.
4. Holding the inner cover open, carefully take the jammed paper out of the printer. The inner cover will then close automatically.
6. Open and then close the rear cover or front cover to resume printing.
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6.3.2 Tips for Avoiding Paper Jams
By selecting the correct paper types, most paper jams can be avoided. · Follow the procedures Jam remove. Ensure that the adjustable guides are positioned correctly. · Do not overload the paper tray. · Do not remove the paper from the tray while printing. · Flex, fan, and straighten the paper before loading. · Do not use creased, damp, or highly curled paper. · Do not mix paper types in a tray. · Use only recommended print materials. · Ensure that the recommended print side of print materials is facing up in the paper tray.
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6.4 Sample Pattern
This product provides several printable test patterns for maintenance purposes. These patterns can be used to aid the diagnosis of print quality problems.
6.4.1 Printing a Demo Page
Print a demo page to make sure that the printer is operating correctly. To print a demo page: In ready mode, press and hold the Stop button for 2 seconds. A demo page showing the printer's features and capabilities is printed.
6.4.2 Printing a Configuration Page
You can print a configuration page from the printer's control panel. Use the configuration page to view the current settings, to help troubleshoot problems. To print a configuration page: In ready mode, press and hold the Stop button on the control panel for 5 seconds. A configuration page prints out.
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6.5 Periodic Defective Image
If an image defects appears at regular intervals on the printed-paper, it is due to a faulty or damaged roller. Refer to the table below and check the condition of the appropriate roller.
No 1 2 3 4 5 6 7 8
Roller OPC Drum Charge Roller Supply Roller Developing Roller 1 st Transfer Roller 2 nd Transfer Roller Heat Roller Pressure Roller
Period 188.5 mm 37.7mm 47.5mm 26.0mm 32.7mm 57.5mm 86.6mm 86.6mm
Phenomenon White and Black Spots Black Spot and line and Periodic Band Periodic Band by little difference of density White Spot, Horizontal black band Ghost, Damaged Image by abnormal tranfer Ghost, Damaged Image by abnormal tranfer Black Spots or Vertical Black Band Background
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6.6 How to use EDC (Engine Diagnostic Control) Mode
EDC Mode is feature that allows the engineer to check the condition of the print engine. It can check the operating condition of the motors, sensors, solenoids and clutches, measure the High Voltage from the HVPS and check the operation of the fuser and LSU.
6.6.1 Enterence
When trying to check the CLP-300 Series EDC Mode, additional EDC execution program needed. [ Procedure of EDC Mode operation ] a) First, turn on the Power of Printer, wait until Ready state b) In this state, Run the EDC program on the computer c) After that, click the menu of screen d) Then appears on the initial screen e) Should you get out of this program, press Exit of screen
6.6.2 Keys
Key Exit Update LCD Menu Left/Right arrow Enter Upper level Discription Close program Update value (ex : sensor value) Move to the top menu Move test item Start testing or select Sub-item Stop testing or the upper menu
6.6.3 EDC Map
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6.6.3.1 Motor Test
Item Main Motor Discription If motor lock signal is normal, "Successed" message will be displayed. When motor lock signal is abnormal, "failed" message will be displayed. When "Upper Level" is pushed, "off " message will be displayed.
6.6.3.2 Solenoid Test
Item Dev Clutch Y Relay M Relay C Relay K Relay Y Toner M Toner C Toner K Toner Regi Clutch T2 Clutch ITB Clutch Tray1 Clutch Regi. Sensor Exit Sensor Waste Box Cover Tray1 Empty Discription When select key is pushed, Dev Clutch ON message will be displayed. Upper Level is pushed, Dev Clutch Off message will be displayed. When select key is pushed, Y Relay ON message will be displayed. Upper Level is pushed, Y Relay Off message will be displayed on. When select key is pushed, M Relay ON message will be displayed. Upper Level is pushed, M Relay Off message will be displayed. When select key is pushed, C Relay ON message will be displayed. Upper Level is pushed, C Relay Off message will be displayed. When select key is pushed, K Relay ON message will be displayed. Upper Level is pushed, K Relay Off message will be displayed. When select key is pushed, Y Toner ON message will be displayed. Upper Level is pushed, Y Toner Off message will be displayed. When select key is pushed, M Toner ON message will be displayed. Upper Level is pushed, M Toner Off message will be displayed. When select key is pushed, C Toner ON message will be displayed. Upper Level is pushed, C Toner Off message will be displayed. When select key is pushed, K Toner ON message will be displayed. Upper Level is pushed, K Toner Off message will be displayed. When select key is pushed, REGI Clutch ON message will be displayed. Upper Level is pushed, REGI Clutch Off message will be displayed. When select key is pushed, T2 Clutch ON message will be displayed. Upper Level is pushed, T2 Clutch Off message will be displayed. When select key is pushed, ITB Clutch ON message will be displayed. Upper Level is pushed, ITB Clutch Off message will be displayed. When select key is pushed, Tray1 Clutch ON message will be displayed. Upper Level is pushed, Tray1 Clutch Off message will be displayed. If actuator is checked by sensor, "Without Paper" message will be displayed. if not, "With Paper" message will be. If actuator is checked by sensor, "Without Paper" message will be displayed. if not, "With Paper" message will be. If waste Box exists , Installed message will be displayed. If not, Not Installed message will be. If cover is opened, " Opened message will be displayed. If not, "Closed" message will be. If paper exists in the tray, "With Paper" will be displayed. If not, "Without Paper" message will be.
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6.6.3.3 LSU/ Fuser Test
Item LSU Motor Discription If LSU motor lock signal is normal, "Successed" message will be displayed. When LSU motor lock signal is abnormal , failed" message will be displayed. When Upper Level is pushed, off message will be displayed. When select key is pushed, LSU Power On message will be displayed. If not, LSU Power Off" message will be. When select key is pushed, Laser Diode On message will be displayed. If not, Laser Diode Off message will be. When select key is pushed, PTL On message will be displayed . If not, PTL Off message will be. When select key is pushed, Fuser On message will be displayed. If not, Fuser Off message will be.
LSU Power Laser Diode PTL Fuser
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6.6.3.4 HVPS Test
Item Charger Discription When select key is pushed, DUTY : x%* message will be displayed. And then Left/Right arrow is selected, x% is increased or decreased. And DUTY : x% message will be displayed. * is disappeared. And then select key is pushed, x%* message will be displayed. When Upper Level is pushed, * is disappeared. When select key is pushed, DUTY : x%* message will be displayed. And then Left/Right arrow is selected, x% is increased or decreased. And DUTY : x% message will be displayed. * is disappeared. And then select key is pushed, x%* message will be displayed. When Upper Level is pushed, * is disappeared. When select key is pushed, DUTY : x%* message will be displayed. And then Left/Right arrow is selected, x% is increased or decreased. And DUTY : x% message will be displayed. * is disappeared. And then select key is pushed, x%* message will be displayed. When Upper Level is pushed, * is disappeared. When select key is pushed, T2 REVERSE On message will be displayed. If not, T2 REVERSE Off will be. When select key is pushed, DUTY : x%* message will be displayed. And then Left/Right arrow is selected, x% is increased or decreased. And DUTY : x% message will be displayed. * is disappeared. And then select key is pushed, x%* message will be displayed. When Upper Level is pushed, * is disappeared. When select key is pushed, DUTY : x%* message will be displayed. And then Left/Right arrow is selected, x% is increased or decreased. And DUTY : x% message will be displayed. * is disappeared. And then select key is pushed, x%* message will be displayed. When Upper Level is pushed, * is disappeared. When select key is pushed, DUTY : x%* message will be displayed. And then Left/Right arrow is selected, x% is increased or decreased. And DUTY : x% message will be displayed. * is disappeared. And then select key is pushed, x%* message will be displayed. When Upper Level is pushed, * is disappeared. Duty : 50% -> -789V , Range : -81V ~ -1689V Duty : 50% -> 1159V , Range : 122V ~ 2188V
T1
T2
T2 REVERSE Dev DC
Dev AC Vpp
Dev AC
Charger T1 T2 Supply DC AC, Vpp
Duty : 50% -> 2552V , Range : 264V ~ 4730V Duty : 50% -> -269V , Range : -1V ~ -591V Duty : 50%-> 1210V , Range : 800V ~ 2160V
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6.6.3.5 Maintenance
Item Fuser Transfer Pick Up Roll ITB Discription When select key is pushed, Initialized message will be displayed. When Upper Level is pushed, Off message is disappeared. When select key is pushed, Initialized message will be displayed. When Upper Level is pushed, Off message is disappeared. When select key is pushed, Initialized message will be displayed. When Upper Level is pushed, Off message is disappeared. When select key is pushed, Initialized message will be displayed. When Upper Level is pushed, Off message is disappeared.
6.6.3.6 Error list and recovery
Paper Empty / Paper Mismatch - Load specified paper in the tray 1 Paper does not exist in the tray1 Load Paper, When you still want to continue printing - Paper mismatch in the tray 1 Paper is mismatched Press stop key for a while, When you still want to continue printing
Cover Open - Cover Open Cover is opened Close the door, When you still want to continue printing
Waster Tank Full or not installed - Waste Tank Full Toner of Waste toner box is full Empty or Insert the waste toner box
Paper Jam - Paper Jam at the tray1 Paper is not picked up Cover Open /Close, When you still want to continue printing
- Paper Jam inside printer There is a paper inside printer After cover Open , Paper must be removed, and then close the cover
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- Paper Jam at the paper exit area There is a paper at exit area After cover Open , Paper must be removed, and then close the cover
- Motor Lock Error Motor does not run or runs abnormal speed Motor or Main board must be checked
- LSU Motor Lock Error LSU motor does not run or runs abnormal speed Hsync is not detected LSU or Main board must be checked
- Transfer Belt Error ITB home sensor is not checked for a normal time ITB must be checked
- Fuser Over Heat error Temperature of fuser is high Fuser or Main board must be checked
- Fuser Low Heat error Temperature of fuser is low Fuser or Main board must be checked
- Dev. Home error Home of Development is not checked or checked at the abnormal time Clutch of Development or Main board must be checked
- ADC not Confirm Error Signal of confirmation for ADC is not detected Main board must be checked
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6.7 Error Message
When the printer experiences an error, the control panel will indicate an error message with the indicator lights and the Smart Panel program window will display to show the printer's status or errors. Find the light pattern below that matches the printer light pattern and follow the solutions to clear the error. LED status legend
LED pattern
Possible Problem and Solution The blinking toner cartridge is low. Order a new toner cartridge. You can temporarily improve print quality by redistributing the toner.
The lighting toner cartridge is empty. Remove the old toner cartridge and install a new one.
The blinking toner cartridge is totally exhausted. Remove the old toner cartridge and install a new one. The blinking toner cartridge is wrong. Only install a Samsung toner cartridge, designed for your printer.
A paper jam has occurred. To solve the problem. The front cover is open. Close the front cover. There is no paper in the tray. Load paper in the tray. The waste toner container is open or full. Check the container. Your system has some problems. If this problem occurs, contact your service representative.
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