The New Toner Is Not Detected; Printing From Macintosh Applications Fails; Usb Direct Printing Does Not Work - Brother MFC-9320CW Service Manual

12.4 The New Toner is not Detected.

Step
1
2
3

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.
Step
1 Failure inside the
machine
2 Breakage of main
PCB

12.6 USB Direct Printing does not Work.

(USB direct interface model only)
Step
1
2
Cause
New toner actuator not operating
smoothly or catching.
Main PCB failure
Toner/new sensor PCB failure
Cause
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
Does the machine make
a print using a correct
computer and a USB
cable?
Cause
USB direct interface relay PCB failure
Main PCB failure
Make sure correct movement of the
new toner actuator of the appropriate
color.
Replace the main PCB ASSY.
Replace the toner/new sensor PCB
ASSY of the appropriate color.
Check
Result
No
7.)
No
Replace the USB direct interface relay
PCB ASSY.
Replace the main PCB ASSY.
3-107
Remedy
Remedy
Identify the error type,
and then refer to the
specified section of this
chapter.
Replace the main PCB
ASSY.
Remedy
Confidential