2.
Perform the [Fusing Roller Cleaning] (toners are consumed).
Menu > Maintenance > Quality Maintenance >Fusing Roller Cleaning
3.
A paper is fed and images are printed on both sides of the paper.
4.
Check that the black spots do not appear any more.
• The effectiveness of the fusing cleaning varies depending on the types of images printed or papers
used until now. Therefore, the problem may be improved by performing the [Fusing Roller
Cleaning] several times, which consumes the toners.
When Toner Smears Appear on the Backside of the Printouts
When you keep printing using sheets of paper such as A4 SEF or A5, which is narrower than the
maximum printable paper this machine supports, and then keep printing using sheets of paper such as
A4 LEF or A3 SEF, which is wider than those used in the previous print job, toner smears may appear on
the backside of the printouts depending on your environment or usage.
Specifying this setting prevents the fusing unit temperature from becoming too high, so that the consistent
print quality can be maintained.
Specifying [Quality Priority] takes longer than normal printing. Also, printing may stop for approximately
40 seconds as the machine cools down before the next print job starts.
1.
Select [Quality Priority].
Menu > Maintenance > Quality Maintenance > Fusing Unit Ctrl Priority
If toner smears also appear when you consecutively print a small size paper, do the following
procedure.
1.
Enter SP mode.
2.
Set SP-1-990-001 (Speed Change 0:LOW 1:HIGH) to 0.
6. Troubleshooting
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Summary of Contents for Da-P1
Page 1: ...Model Da P1 Machine Code M187 Field Service Manual January 2015 ...
Page 2: ......
Page 15: ...Recommendation 294 13 ...
Page 16: ...14 ...
Page 24: ...1 Product Information 22 ...
Page 54: ...3 Preventive Maintenance 52 ...
Page 63: ...1 Open the front cover A Exterior Covers 61 ...
Page 66: ...4 Screw 1 5 Release the stopper A 4 Replacement and Adjustment 64 ...
Page 70: ...4 Upper cover A 4 Operation Panel 1 Open the front cover A 4 Replacement and Adjustment 68 ...
Page 72: ...5 OPU board A 1 6 Board cover A Tab 2 7 Panel A 4 Replacement and Adjustment 70 ...
Page 73: ...8 Eco night sensor A Exterior Covers 71 ...
Page 79: ...11 Pull out two spring holders from the LED head A LED Optics 77 ...
Page 82: ...3 Hold the grip to pull the toner cartridge A out 4 Replacement and Adjustment 80 ...
Page 89: ...3 Paper feed clutch A 1 1 By pass Feed Clutch 1 Right Cover page 60 Drive Unit 87 ...
Page 104: ...4 Screws of the fusing lamp x3 5 Two brackets A 4 Replacement and Adjustment 102 ...
Page 131: ...4 Registration sensor A Tab 1 Paper Transport 129 ...
Page 134: ...Right Side 1 1 Rear Side 2 4 Replacement and Adjustment 132 ...
Page 299: ...Model Da P1 Machine Code M187 Appendices February 2015 ...
Page 300: ......
Page 310: ...1 Appendices Specifications 10 ...
Page 343: ...3 920 002 Mode select ENG 0 or 1 0 1 step Main SP Tables 3 43 ...
Page 452: ...MEMO 152 EN ...