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Confidential
12.4 The New Toner is not Detected.
12.5 Printing from Macintosh Applications Fails.
<User Check>
- Check that the printer driver which, is supplied with the product, is installed in Library/
Printers, and that the print queue is created.
- Check the connecting end on the printer browser. It must be matched with the connecting
end which is actually connected.
12.6 USB Direct Printing does not Work.
(USB direct interface model only)
Step Cause Remedy
1 New toner actuator not operating
smoothly or catching.
Make sure correct movement of the
new toner actuator of the appropriate
color.
2 Main PCB failure Replace the main PCB ASSY.
3 Toner/new sensor PCB failure Replace the toner/new sensor PCB
ASSY of the appropriate color.
Step Cause Check
Result
Remedy
1 Failure inside the
machine
Does the machine print
test pattern?
(Check it following the
procedure described in
“1.4.5 Monochrome
image quality test
pattern (Function code
09)” in Chapter 7.)
No Identify the error type,
and then refer to the
specified section of this
chapter.
2 Breakage of main
PCB
Does the machine make
a print using a correct
computer and a USB
cable?
No Replace the main PCB
ASSY.
Step Cause Remedy
1 USB direct interface relay PCB failure Replace the USB direct interface relay
PCB ASSY.
2 Main PCB failure Replace the main PCB ASSY.
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