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Brother DP-525CJ Service Manual: Fig. 1.16 Key Top/key Stem Assembly

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The key tops and key stems are assembled in the keyboard panel. The FPC (flexible
printed circuit) board with rubber contacts is fitted to the base plate. See Fig. 1.16.
The FPC board is a single sheet of film (FPC) on which an electrode pattern is printed in
layers. When the key top is pressed, the key actuator presses the rubber contact; the
conductive part of the contact connects both of the electrodes to output the
predetermined signal for the key.

Fig. 1.16 Key Top/Key Stem Assembly



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  • brian aaron Jan 27, 2017 03:48:
    ​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​