Fuji Xerox DocuPrint M355df User Manual

Chapter 3 Image Quality Troubleshooting
3.2 Image Quality Troubleshooting
3-18
IQ-7 Pitched black dots
Possible causative parts
- IIT ASSY (PL21.1.14)
- DADF ASSY (PL21.1.1)
- Transfer Unit [ROLL ASSY-TRANS CRU] (PL6.1.1)
- Drum Cartridge [XERO ASSY] (PL8.1.1)
- FUSING UNIT (PL7.1.1)
- HVPS (PL18.2.5)
Step Check and Action Yes No
1
Checking the error mode.
Does the error occur only during copying?
Go to step 2. Go to step 4.
2
Checking the original.
Is the original color clean?
Go to step 3.
End, checking
the original.
3
Checking the platen glass and DADF Feed Roller.
Are there any damages or foreign substance?
Remove the for-
eign substances
or Clean up the
IIT/DADF. If
platen glass has
been damaged,
Replace the IIT
ASSY (REP
21.1). Then go to
step 4.
Go to step 4.
4
Checking the defective parts.
Print the [Pitch Chart] in [Chart] in [Maintenance] of [Admin
Menu].
When the partial lacks of periodicity are observed, check the
defective parts by comparing the printed partial lacks with the
Pitch Chart.
Are there any partial lacks matching the chart?
Replace the cor-
responding parts.
Go to step 5.
Go to step 5.
5
Checking after cleaning Inside the Printer.
Is the image printed correctly?
End of work. Go to step 6.
6
Checking the Transfer Unit for connection.
Remove the Transfer Unit.
Are the Plate Spring BTR on HVPS dirty or deformed?
Clean up the
Plate Spring BTR
or Replace the
HVPS (REP
18.3), then go to
step 7.
Go to step 7.
7
Checking after resetting the Transfer Unit.
Reseat the Transfer Unit.
Is the image printed correctly?
End of work. Go to step 8.
8
Checking after replacing the Transfer Unit.
Replace the Transfer Unit.
Is the image printed correctly?
End of work. Go to step 9.

Fuji Xerox DocuPrint M355df Specifications

General

Brand	Fuji Xerox
Model	DocuPrint M355df
Category	Printer
Language	English