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Brother DP-525CJ Service Manual: Printer Control; Ink Jet Head Control; Fig. 2.9 Ink Jet Head Drive Circuit

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Printer Control


Ink Jet Head Control

The ink jet head drive circuit is shown in Fig. 2.9. The ink jet head has 50 active
nozzles (monochrome). Two addressable multiplexing printer drive circuits (#2, #3)
activate the nozzles for printing. Custom circuitry controls the timing and
synchronization of ink deposited as the cartridge moves across the paper in printing.
The same system controls ink jet head maintenance (spitting into the trough).

Fig. 2.9 Ink Jet Head Drive Circuit



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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​