Brother MFC-J3520 Service Manual

4-16
Confidential
If the internal ring is already set in the +1 or -1 position and cannot be turned
further, then replace the head/carriage unit.
Note: When turning the internal ring, hold down the head/carriage unit. Failure
to do so may cause missing block.
Fig. 4-1
 Turning the rings
External ring
Apply the tip of a flat screwdriver to the groove at section "A" shown in the figure
below. While pressing down the external ring with the screwdriver, turn it to the
+ or - position.
Internal ring
Insert the tip of a flat screwdriver under the external ring from section "B" and
remove the external ring upwards. Put the external ring on the internal ring
inside out and use it as a wrench to turn the internal ring to the + or - position.
Fig. 4-2
3) Go back to step (2), print out a test pattern again, and check the D pattern.
Repeat this procedure until the number of block that shows the most indistinct
red color comes to be 2.
+7-7
0
Internal ring
External ring
A
B

Brother MFC-J3520 Specifications

General

Print Technology	Inkjet
Duplex Printing	Yes
Fax Modem Speed	33.6 kbps
Functions	Print, Copy, Scan, Fax
Standard Paper Capacity	250 sheets
Mobile Printing	Yes
Max Print Resolution	6000 x 1200 dpi
Scanner Type	Flatbed + ADF
Max Scan Resolution	1200 x 2400 dpi
Connectivity	USB, Ethernet, Wi-Fi
Automatic Document Feeder (ADF)	Yes
Ink Cartridges	Black, Cyan, Magenta, Yellow
Print Speed (Black)	Up to 35 ppm (draft), 12 ppm (ISO)
Print Speed (Color)	27 ppm
Display	2.7" Touchscreen Color LCD