Samsung SCX4521F Service Manual - Page 117

Stains on Back of Blank Print out 1, Digital, Digital Pri

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Troubleshooting 6.5.14 Stains on Back of Page • Description The back of the page is stained at 47 mm intervals. Digital Digital Pri Digital Printer Digital Printer Digital Printer Check and Cause 1. Transfer roller is contaminated. 2. Pressure roller is contaminated. 6.5.15 Blank Page Print out (1) Solution 1. Perform the DRUM 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. 6.5.16 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. Check and Cause 1. Bad ground contacts in OPC and/or developer. Solution 1. Remove contamination of the terminals of the developer. 2. Abnormal solenoid. 2. Perform the engine self test using Engine Test Mode 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. 6-22 Service Manual Samsung Electronics

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Samsung Electronics
Service Manual
Troubleshooting
6-22
6.5.14
Stains on Back of Page
• Description
The back of the page is stained at 47 mm intervals.
Digital
Digital Pri
Digital Printer
Digital Printer
Digital Printer
Check and Cause
Solution
1. Transfer roller is contaminated.
2. Pressure roller is contaminated.
1. Perform the DRUM Cleaning Mode Print 2
or 3 times. Run Self-Test to remove the con-
tamination 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.
6.5.15
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.
6.5.16
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.
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 Engine Test
Mode 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.