Samsung SCX-1100 Troubleshooting
4-1
Samsung Electronics
4. Troubleshooting
4-1 Setting-up System in User Mode
FUNCTION ITEM DEFAULT
LANGUAGE ENG/GER/FRE/IT A/SPA/POR/DUT ENGLISH
POWER SAVE MODE 1/4/8/12 HOUR 1
PAPER SIZE LETTER/A4/LEGAL A4
P APER TYPE PLAIN/INKJET/PHOTO/TRANSPARENCY PLAIN PAPER
MAINTENANCE CLEAN CARTRIDGE
ALIGN CARTRIDGE
VIEW INK LEVEL "COLOR : _/8 , BLOCK : _/8"
HELP LIST
DEFAULT SETUP CONTRAST
QUALITY
COPY P AGE
ZONE RATE
RESOLUTION
ADJUST SHADING
KEY SOUND ON/OFF ON
4-2 Setting-up System in Service Mode
• How to enter service mode
In service (tech) mode, the technician can check the machine and perform various tests to isolate the cause of a malfunction.
To enter the service mode, press ENTER, LEFT, RIGHT, LEFT, SETUP in sequence, and the LCD displays ‘ T ’, the machine
has entered service (Tech) mode.
To return to normal user mode, press ENTER, LEFT, RIGHT, LEFT, SETUP in sequence again, or turn the power off, then
on by unplugging and plugging the power cord.
Because the explanation of the User Mode items is already mentioned at the User guide in detail, It will not be described at
Service manual.
4-2
Troubleshooting
Samsung Electronics
FACT OR Y SELFTEST
Using this pattern printout, you can check if the printer
mechanism is functioning properly. Examine the pattern
and look for a break in the diagonal line. If the diagonal
lines are not broken, the printer mechanism is functioning
properly .
ROM TEST
Use this feature to test the machine'S ROM. The result and the
software version appear in the LCD display .
PRINT NVRAM TEST
1. Press the SETUP button until “PRINT NVRAM DUMP”
is displayed in LCD.
2. Press the START button when the NVRAM Test operation menu displayed. And then the machine prints the
list for NVRAM testing.
The Remote Test feature can be enabled in order to allow
a remote location to call up and run a diagnostic test on
your machine. You may be instructed by a service representative to enable this feature.
NVRAM DUMP LIST
LIST Left Head Detect : 1c
Right Head Detect : 7
Left Head Type : 1c
Right Head Type : 7
< Device Identification >
MFG:Samsung;
CMD:LNPAP;
MODEL:SCX-1100;
CLASS :Printer;
DES:Samsung SCX-1100;
< Dot Count Variables >
Black Dot Count : 2436256
Color Cyan Dot Count : 1368128
Color Magenta Dot Count : 1368128
Color Yellow Dot Count : 1368128
Photo Black Dot Count : 0
Photo Cyan Dot Count : 0
Photo Magenta DotCount : 0
Total Black Dot Count : 2436256
Total Color Cyan Dot Count : 1368128
Total Color Magenta Dot Count : 1368128
Total Color Yellow Dot Count : 1368128
Total Photo Cyan Dot Count : 0
Total Photo Magenta Dot Count : 0
Total Photo Black Dot Count : 0
< Page Count Variables >
Total Page Count : 2
< Cartridge Types >
Left Cartridge Type : Color Standard Capacity
Right Cartridge Type : Black High Capacity
< Alignment Variables >
Horizontal Align Value : 15
Vertical Align Value : 8
Quick Black Bidi Align Value : 15
Quick Color Bidi Align Value : 15
Normal Black Bidi Align Value : 15
Normal Color Bidi Align Value : 15
Photo Horizontal Align Value : 15
Photo Vertical Align Value : 8
Photo Normal Black Bidi Align Value : 15
Photo Normal Color Bidi Align Value : 15
PROGRAM DOWNLOAD
Use this feature to download a new upgraded ROM file from
a PC which is connected to the machine with a parallel cable
(IEEE 1284).
< Download >
1. Connect printer to PC with a parallel cable(IEEE 1284.)
2. Select the PROGRAM DOWNLOAD function at the TECH
MODE.
3. Input COPY/B FILENAME PRN at the MS-DOS and push
the ENTER key .
(filename : the latest ROM file name when the downloading)
4. After the download is completed, the system will be automatically initialized.
4-3
Troubleshooting
Samsung Electronics
PRINT CCD PATTERN
It is used to adjust the light of CCD. It is already set at
CCD Test to get optimum quality.
NOTICE
When you test CCD, make sure that the cover is
closed.
1. Press the SETUP button until “Print CCD Pattern” is
displayed in LCD.
2. Press the START button when the CCD Test operation
menu displayed.
3. After scanner calibrating, wave form will be automatically printed out.
All the wave forms should be similar each other. CCD
problems may occur, if:
• More than one of the wave forms are straight lines.
• All wave forms are positioned under the center line.
WHITE LINES ON LETTERS OR GRAPHICS
• Cause
If nozzles in print head has a problem, white lines are
marked on the print.
‘CARTRIDGE MAINTENANCE’ will let you know if nozzles have fallen problems.
• Solution
1
) Run ‘print control panel’ to “clean print nozzles” and check if
nozzles have been blocked.
2) Wipe
with soft cloth the contact surfaces of ink cartridge and car-
riage, and check if nozzles have been cleaned properly.
3) Separate ink cartridge from carriage and combine them.
Repeat it about 5 to 6 times and check if connection is proper.
4) Replace ink cartridge and check whether there’s a problem
with the head.
5) Check if head cable is inserted well into the main circuit board
and then check if nozzles have problems.
6) Check if head cable is broken or torn and then check if nozzles
have problems.
7) Replace the main circuit board with a new one and
check if nozzles have problems.
MEMORYALL CLEAR
Initiating this function will put the system into the factory
shipping state. The procedure is as follows :
1. Unplug power
2. Press and hold " SETUP" button
3. Plug power in
4. Continue holding " SETUP" button until CLEARING
MEMORY message appears on LCD
5. Unplug power
If this line is broken, it confirms that nozzles
have problems.
4-4
Troubleshooting
Samsung Electronics
4-3. Troubleshooting
4-3-1 Defective PC Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-5)
4-3-2 Defective Image quality of PC Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-5)
4-3-3 Defective Operation (LCD WINDOW ) Display . . . . . . . . . . . . . . . . . . . . . . .page(4-6)
4-3-4 No Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-6)
4-3-5 Defective LCD Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-7)
4-3-6 Defective Operation of Key Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-7)
4-3-7 Paper Jam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-8)
4-3-8 Defective Paper Feed (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-8)
4-3-9 Defective Paper Feed (2) -Display of NO PAPER . . . . . . . . . . . . . . . . . . . . . . . . .page(4-9)
4-3-10 Multi-Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-9)
4-3-11 Defective Sensing-ink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-10)
4-3-12 Defective Sensing-paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-10)
4-3-13 Defective Motor Drive (LF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-11)
4-3-14 Defective Motor Drive (CR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-11)
4-3-15 Defective Motor Drive (Scan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-12)
4-3-16 Blank Page Print Out (When Copying) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-12)
4-3-17 Vertical Black Line (When Copying) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-13)
4-3-18 Contaminated Stains on Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-13)
4-3-19 Bad printed Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-14)
4-3-20 Vertical Lines are printed crookedly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-14)
4-3-21 Bad Color (Intensity) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-15)
4-3-22 The Printer is Not Working (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-15)
4-3-23 The Printer is Not Working (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-16)
4-3-24 Abnormal Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-17)
4-3-25 Spool Error and Release of Spool Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-18)
• The solutions of troubleshooting in this 'Service Manual' explain the expected causes and
how to check according to each problem and describe how to replace the defected parts (unit
of ASS'Y) if necessary.
• The contents of this 'Service Manual' describe general ones only among many kinds of problems and causes while using the Product.
• The contents of this 'Service Manual' describe mainly technical explanations of the Product
H/W and parts on the assumption that there is no problem in S/W.
4-5
Troubleshooting
Samsung Electronics
4-3-1 Defective PC Scan
4-3-2 Defective Image Quality of PC Scan
• Description
• Location 1.UBS Cable of the Printer or Centronics Cable 2.Driver 3.Main B’d
The PC Scan is not functioning at all.
Check and Cause Solution
1. Check the Cable (USB or Parallel)
2. Check if the driver is installed properly.
1. If the PC and the cable are not connected properly,
reconnect it.
2. After confirming that it is proper by performing a PC
printing test related to driver setup, if it is not so, reinstall
it. (Refer to User's Manual.)
• Description
• Location 1. CCD ASS'Y 2.Main B’d
The image PC scanned is not clear or bad.
Check and Cause Solution
1. Check the waveform form by performing a CCD test
in TECH mode. (Refer to 4-1-3)
2. Check if the resolution is set too low in PC Scan
options. (Refer to User's Manual.)
1. If the CCD waveform form is abnormal, try to replace
CCD ASS'Y.
2. If the resolution is set to low, let the user be acquainted
with the using method well.
4-6
Troubleshooting
Samsung Electronics
4-3-3 Defective Operation (LCD WINDOW ) Display
4-3-4 No Power
• Description
• Location 1.OPE ASS'Y 2.Connection between the Main B'D and OPE ASS'Y 3.Main B'D.
Strange characters are displayed on the OPE Panel and buttons are not operated.
Check and Cause Solution
1. Clear the memory.
2. Check if OPE HARNESS is connected to the Main
Board correctly.
1. Try again after clearing the memory.
2. After confirming that OPE HARNESS is connected to
the Main Board correctly, if it is so, then replace the
OPE ASS'Yand Main Board in sequence.
• Description
• Location
1.Power code 2.Connection between the Main B'D and Power HARNESS
3.Power ASS'Y 4.Main B'D. 5.OPE Ass’y
While the power S/W is turned on, it does not work at all.
Check and Cause Solution
1. Check if the connection of power code is normal.
2. Check if DC +3.3V and +30V is supplied to POWER
ASS'Y from MAIN B'd.
3. Check if POWER DOWN KEY in OPE ASS'Y is
working regularly.
1. Try to replace the power code.
2. If all the connections are correct, try to replace the
power ASS'Yand the Main B/D in sequence.
( +3.3V and +30V is supplied to POWER ASS'Y from
MAIN B'd)
3. Replace OPE ASS'Y
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