IBM 4234 dot matrix

Print Band and sensor need cleaning or replacement.

To check if this is a hardware issue, please print a menu settings page. The purpose of this diagnostic is to check if this is a software issue or a hardware issue.



1. Press Menu to display Menus.
2. Press "down" until the "check" appears next to Reports.
3. Press "Check".
4. Press "down" until the "check" appears next to Menu Settings Page.
5. Press "check".
The message Printing Menus Settings appears on the display.
The printer returns to the Ready state after the menu settings page prints.


If the menu settings page printed without the dots, this would be a software issue. In that case, please call our Technical Support Hotline on (800) 539-6275.

Might be your gap is set to high. try moving the right lever from A to B for example and see if it clears it out. Also might be your parallelism, you will find to hex screws on the right and left of the platen assy that u can adjust. This will balance out the shuttle if one side is printing to light and another is printing to dark. Rory 708-597-4222

This is a SNIP of a rather LONG FIX:

Found here:
http://forums.windrivers.com/showthread.php?7080-RESOLVED-Okidata-Microline-184-Turbo

"Just purchased this thing and am running it a machine to print checks with (Win95, p1-200, 48 Mb ram). The Oki dot matrix printers don't give you drivers, they tell you to use the drivers from Win95 disk. Sure... (just lazy if you ask me :-) OK using the Oki Microline 184 IBM Turbo driver the thing works fine, EXCEPT that it *always* prints in NLQ mode no matter what the settings in the control panel, it just switches to NLQ before each print job. So... we switch to a "generic text" driver and it works fine that way EXCEPT that it no longer recognises the custom paper length (8.5" wide X 7" long) Now here's the wierd part... IF I switch back to the win95 driver, re-accept the custom paper size, print a test page (in NLQ of course), switch back to the generic driver, re-accept the the custom paper size, switch the printer to normal (non NLQ), and print it works fine with the custom paper size and non-NLQ mode until the next time it needs to print. The printer remains ON 24/7, so its not reseting itself. It just seems that with the Win95 driver there is no way to set it to print in anything but NLQ AND the generic driver refuses to keep the custom paper sizes in memory. Anyone seen this before? Never came accross this myself. I may just end up sending this thing back and getting an Epson or someting else."

AND THERE IS THIS:
"This is like going back to the dark ages....most of those old impact printers had dip switches to set things like default print quality. Additionally, Oki's usually came in two 'flavors'--plain Oki and IBM Oki. It's important that you install the correct driver between the two options..."

Anthony

remove the metal cover and replace or swap the electronic control board.

Have you tried to check the print settings?
Click on Start>Control Panel>Printers(Printers and faxes)> Right Click on the DFX-9000 printer icon>left click on properties>click the printing preferences button located below the properties box. In this window you should see the setting of the printer itself.

Try running couple of these test, to see if it might be another issue.
It should be printing these test at 1500 Line Per Minute... ?
1500LPM is at 10CPI if you have (Font size: 6, 8, 12, 14) it will make a difference.
Change your driver to Generic/Text, rerun your report... any difference?

if you are seeing letter or print ghosting the printhead might need to be replaced.

try changing the chacters per line, print out a config page and towards the bottom of this it will state the current settings

Dec 18, 2007 old problem... If you have same problem currently, post it and will get you fixed. March 14, 2009.