Samsung ML-1440 Service Manual - Page 50

Satins on Back of Blank Print out 1, 2-16 Blank Print out 2

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Troubleshooting 4-2-14 Satins on Back of Page • Description The back of the page is stained at 56.1 mm intervals. DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr 70 mm Check and Cause 1. Transfer roller is contaminated. 2. Pressure roller is contaminated. 4-2-15 Blank Page Print out (1) Solution 1. Perform the OPC Cleaning Mode Print 2 or 3 times. Run Self-Test to remove the contamination of the transfer roller. 2. Replace the transfer roller if contaminated severely. 3. Disassemble the fuser and clean the H/R(Heat Roller) and P/R(Pressure roller). And check the area between H/R and Thermistor. If contaminated, clean the area not to be deformed. • Description Blank page is printed. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Bad ground contacts in OPC and/or developer. Solution Remove contamination of the terminals of the developer and the unit. 4-2-16 Blank Page Print out (2) • Description 1. Blank page is printed. 2. One or several blank pages are printed. 3. When the printer turns on, several blank pages print. DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr Check and Cause 1. Bad ground contacts in OPC and/or developer. 2. Abnormal solenoid. Solution 1. Remove contamination of the terminals of the developer. 2. Perform the engine self test using DCU to check if the Solenoid is normal.(refer to code 06) 3. If not solved by the above directions 1-2, Replace the engine board. 4. Turn the power off, delete the data of PC and try printing again. 4-12 Samsung Electronics

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Troubleshooting
4-12
Samsung Electronics
4-2-14 Satins on Back of Page
• Description
The back of the page is stained at 56.1 mm intervals.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
70 mm
Check and Cause
Solution
1. Transfer roller is contaminated.
2. Pressure roller is contaminated.
1. Perform the OPC Cleaning Mode Print 2 or
3 times. Run Self-Test to remove the conta-
mination of the transfer roller.
2. Replace the transfer roller if contaminated
severely.
3. Disassemble the fuser and clean the
H/R(Heat Roller) and P/R(Pressure roller).
And check the area between H/R and
Thermistor. If contaminated, clean the area
not to be deformed.
4-2-15 Blank Page Print out (1)
• Description
Blank page is printed.
Check and Cause
Solution
Bad ground contacts in OPC and/or devel-
oper.
Remove contamination of the terminals of the
developer and the unit.
4-2-16 Blank Page Print out (2)
• Description
1. Blank page is printed.
2. One or several blank pages are printed.
3. When the printer turns on, several blank pages print.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Check and Cause
Solution
1. Bad ground contacts in OPC and/or
developer.
2. Abnormal solenoid.
1. Remove contamination of the terminals of
the developer.
2. Perform the engine self test using DCU to
check
if the Solenoid is normal.(refer to code 06)
3. If not solved by the above directions 1-2,
Replace the engine board.
4. Turn the power off, delete the data of PC
and try printing again.