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Brother DP-525CJ Service Manual Page 72

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REPAIR
SERVICE MANUAL
Points to Check
Is these wear or damage to the
ink cartridge head locker, spring,
or carriage assembly?
(3) Maintenance Station:
Is the wiper loose or worn?
Is the cap worn or loose?
Is the spring-loaded MS carriage
moving freely?
(4) Paper/Line Feed:
Are there any obstruction in the
paper path?
Is the correct type of paper in
the machine?
Are star-wheels binding?
Is the main roller assembly
rotating properly?
Does not the line/paper feed
motor rotate normally?
Does the sheet lead edge
contact the frist print roller?
Are the drive gears working
properly?
(5) Color Print (Check Items 1-4
above)
With a color cartridge properly
installed, will the system display
a color selection dialog box, and
then print the file in the color
selected?
Run the Self-test color print test
1 (#2 from the SELF TEST
MENU).
Probable Cause
Head locker or spring
worn or damaged:
dirty, worn, or
damaged gold-plated
contacts the printer flat
cable.
Defective wiper
Defective cap
Obstructions in
carriage path; spring
broken or loose; MS
carriage out of tracks.
Paper jam
Wrong paper (weight,
size)
Star-wheels dirty,
worn, or dislodged.
Worn or broken gears,
bearing, defective line
feed motor?
See Problem 6, Line
Feed Motor.
Paper jam, incorrect
paper wt./type; worn
main shaft rollers
Worn, misalign, or
damaged gears.
If no, color detection
circuit (Main PCB) is
defective.
After eliminating items
1-4 (same as
monochrome print),
defective Main PCB.
3-9
Troubleshooting
Corrective Action
Remove the cartridge
and clean the
contacts on the flat
cable in the carriage;
Replace the carriage
mechanism.
Replace wiper.
Replace cap.
Remove obstructions,
realign carriage on
tracks, or replace MS
assembly.
Clear paper path.
Try correct paper.
Replace star-wheel
assembly.
Replace main roller
assembly.
Clear paper path,
install proper wt./type
paper.
Replace the gear
holder assembly
and/or the main shaft
gear.
Replace the Main
PCB.
Replace the Main
PCB.
Repair
Replace spring,
head locker, or
printer flat
cable.
Replace spring
or MS
assembly.
Replace gears,
bearing, and/or
motor.
Replace main
shaft rollers.
Replace D3,
ZD3, Q16, #8.

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  • brian aaron Jan 27, 2017 03:48:
    1-26-2017
    ​I have a brother dp 540cj and it has a built in diskette drive.
    I have a ibm thinkpad latop. I connected a Memorex external usb floppy drive to the ibm thinkpad laptop. i'm copying 3 files from the ibm thinkpap (notepad) to the square 1.44 mb diskette. no problem, the 3 files were copied to the diskette.
    ​I turn on the brother dp 540cj, select file manager, insert the square diskette. the brother dp 540cj open only the file names on the disk. I try to open word text on either of the 3 files on the disk and the brother dp 540cj don't open the word text in any of the 3 files. I have been trying for several days to open the word text on the files using the brother dp 540cj and don't have any further instructio​ns for this problem. I tried saving the file names to all coding - Unicode, ansi utf-8 and can't fix the electronic problem.
    m​y email address is snowwash@j​uno.com