What to do if the OKIDATA ML1120 Printer carriage doesn't move and an alarm appears?
If your OKIDATA Printer's carriage does not move at power ON, or an alarm generates while printing, stopping the print job and indicating an alarm, you can try the following: * Ensure the cord is properly connected. * Consider replacing the LSO print circuit board. * If the issue continues, replace the L09 print circuit board.
How to fix missing print dots on my OKIDATA ML1120 Printer?
If your OKIDATA Printer is missing print dots, consider the following: * Readjust the head gap properly. * Reinstall properly. * Replace the L09 print circuit board.
What to do if my OKIDATA ML1120 Printer shows paper end error even when paper is loaded?
If the OKIDATA Printer displays 'Paper-end' even when paper is set (Lamp B is on), try the following: * Ensure the cord or paper end sensor is properly connected. * Consider replacing the paper end sensor. * If the issue persists, the L09 print circuit board might need replacement. * Alternatively, try setting paper and feeding the paper by turning the platen knob.
Why is my OKIDATA ML1120 not feeding the line properly?
If your OKIDATA Printer is not feeding the line upon receiving or printing data, you can try the following: * Ensure the cord is properly connected. * Consider replacing the LF motor. * If the problem persists, the L09 print circuit board might need replacement.
What to do if the carriage movement is abnormal on my OKIDATA Printer?
If the movement of the carriage is abnormal on your OKIDATA Printer (runs out of control, vibrates, stops during homing, etc.) and an alarm is indicated, check the following: * Ensure the cord or attachment to the home position sensor is properly connected. * Consider replacing the home position sensor. * If the issue continues, the L09 print circuit board might need replacement.
What to do if my OKIDATA Printer doesn't turn on?
If your OKIDATA Printer does not respond when turning on the power switch (no lamps illuminate), try the following: * Replace the AC cord. * Reconnect the cord properly. * Replace the Pow Unit. * Connect the Motor Cable to the L24 print circuit board properly. * Replace the LF Motor. * Replace the SP Motor.
Why is my OKIDATA ML1120 spacing correctly but not printing?
If your OKIDATA Printer's space movement is normal but printing is not performed, try: * Reinstalling properly. * Replacing the L09 print circuit board.
Describes the standard configuration of the ML1120 printer.
Overview of the printer's main configuration and systems.
Details the printer's circuit operations and components.
Explains the mechanical components and their operations.
Important safety and handling precautions before disassembling or assembling parts.
Lists the tools necessary for replacing printed circuit boards and units.
Step-by-step procedures for removing and installing printer assemblies.
Procedure to adjust the gap between the print head and the platen.
Checks the distance for paper top positioning.
Corrects the feed height for cut-sheet paper at 40 lines.
Procedure to correct print registration in both forward and reverse directions.
Instructions and cautions for cleaning the printer mechanism.
Details lubricant types and application points for printer maintenance.
Steps to take before proceeding with printer repair.
Explanation of LED indicator status and meanings.
Summary of LED indications during alarm states and fatal alarms.
Steps to prepare for mounting or checking the ROM.
Details on creating EPROM for flash memory rewriting.
Step-by-step guide for performing flash memory download and rewrite.
Lists parts that require replacement at determined intervals.
Lists the circuit boards included in the printer.
Shows symbols used in circuit diagrams and their descriptions.
General| Printer Type | Dot Matrix Printer |
|---|---|
| Print Direction | Bidirectional |
| Print Resolution | 240 x 216 dpi |
| Maximum Resolution | 240 x 216 dpi |
| Print Method | Impact |
| Paper Size | A4, Letter, Legal |
| Interface | Parallel |
| Operating Systems | DOS, Windows, Linux |
| Number of Pins | 9-Pin |
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