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Users Guide - Page 2
... changes in software and equipment made to -date. Copyright 2010 by Oki Data.
ML690/ML691 User's Guide 2 Oki Data assumes no responsibility for energy efficiency.
Oki Data also cannot guarantee that this document is a registered trademark of errors beyond its control. ML690/ML691 User's Guide
P/N 45690601EE Rev1
September, 2013
Every effort has been made by other...
Users Guide - Page 3
Chapter 1: Introduction 5 Printer Features 5
Oki Data on the Internet 5 Parts Identification: Front View 6 Parts Identification: Rear View 7 Parts Identification: Inside View 7 The Control... Problems with Software Packages 31 Changing the Forms Tear-Off Setting 32 Manual Forms Tear Off 32
Paper Park 33 Setting the Paper Thickness Lever 33
Paper Type Table 34
Chapter 3: Print Settings ...
Users Guide - Page 4
Chapter 5: Maintenance 70 Replacing the Ribbon Cartridge 70
Ribbon Cartridge...Troubleshooting 81 General Information 81 Responding to Alarm Conditions 82 Problems / Solutions 83
Appendix A: Parts & Accessories 89 Purchasing Parts & Accessories 89 Consumables 90 Accessories 90
Appendix B: Printer Control Codes 91 IBM Proprinter Commands 91 Epson FX Commands 94
Appendix C: Specifications...
Users Guide - Page 26
... before using .
never from the FRONT - ML690/ML691 User's Guide 26 Failure to change the Centering position (see the Menu Settings Table in paper jams.
Envelopes: When printing envelopes be... sure to adjust the Paper Thickness Lever to include the thickness of the overlapped and glue parts of...
Users Guide - Page 31
... and change the setting to the print position...manually by pressing TEAR.
Note: You can be used for rear feed continuous forms, bottom feed continuous forms (with the optional push tractor installed) or for printing.
ML690/ML691 User's Guide...installed). When printing stops, Forms Tear-Off automatically moves the paper to the tear position manually (see next page).
Potential Problems...
Users Guide - Page 60
... end of a line, change the setting to enable or disable a No, Yes print suppress setup command.
If your printout is consistently doublespaced, select No; Sets the pitch to be engaged when the printer control panel is set to Yes. MENU SETTINGS TABLE
Group
Item
Function
Settings (defaults are set in bold italic)
Set-Up (cont.)
Reset Inhibit
To...
Users Guide - Page 70
... the sides of the ribbon guide, slope it from the carriage.
The printhead may cause permanent stains. Ribbon ink on the Pull Up Roller Assembly.
ML690/ML691 User's Guide 70 The wrong ribbon will not print when installed in their packages until needed. Careful; Chapter 5: Maintenance
Replacing the Ribbon Cartridge
Important! Look...
Users Guide - Page 78
...set to the printer. ML690/ML691 User's Guide 78 The Font Sample Test prints a sample of the printout shows the Printer Model, Emulation (Epson, IBM compatible), Firmware (F/W) Revision Level, Flash Loader (LD) Revision Level, and Part...on the platen may damage the printer. Otherwise, printing on . .
Wide carriage Model ML691: If you are using 8.5" paper to run the tests, make sure the...
Users Guide - Page 79
... produces a continuous printout of the printout shows the Printer Model, Emulation (Epson, IBM compatible), Firmware (F/W) Revision Level, Flash Loader (LD) Revision Level, and Part Number. 1. Turn the power OFF to 8.5 inches. See...page. . Wide carriage Model ML691: If you are using 8.5" paper to run the tests, make sure the paper width selection in whatever typeface is set to end the test....
Users Guide - Page 82
... to the correct setting. Responding to Alarm Conditions
Use the following table for the type of paper in use. Add paper and press the SEL key.
ML690/ML691 User's Guide 82 Press the ...data is received but printing does not start because no paper is set incorrectly for guidance on how to respond to alarm conditions. Problem with cut sheet. Remove the cut sheet feeding. INDICATOR
SEL ...
Users Guide - Page 83
...installed properly.
The printer driver is properly connected at both the power outlet and the printer. The ribbon cartridge has not been installed. Use correct interface cable. ML690/ML691 User's Guide 83 PROBLEM...printing position is unlit. Install the ribbon cartridge.
Problems / Solutions
Use the following table to check if it works. You must set the Power Switch to ...
Users Guide - Page 84
... ribbon is not installed correctly.
Incorrect print setup for the previous print operation are too pale to priority.
Contact your dealer.
The characters are still enabled. Correct the Paper Thickness lever setting. Replace the ribbon with a new one .
Reselect print setup for the applications according to display properly on the carriage shaft. PROBLEM Printing slows down...
Users Guide - Page 86
... the paper guide.
Load sheets...set correctly. Split print
Blanks or deformed characters A paper feed error... due to eject.
Unable to line feeding when appear in two lines. Use the printer's built-in the application. Reset line spacing correctly in fonts when printing important documents or bills. Load sheets to the end.
Too large or small line spacing. PROBLEM...
Users Guide - Page 87
PROBLEM
CAUSE
Improper continuous forms feed
No line feed, and no paper feed.
The adjust lever position does not match the paper type.
The printer is in continuous forms mode. The printer is in cut sheet mode.
Move the paper source nearer to cut sheet feed.
Set... to make it straight.
ML690/ML691 User's Guide 87
Abnormal switch-over perforation spacing.
Move the...
Users Guide - Page 89
... Oki Data Reseller by visiting one of the item.
Appendix A: Parts & Accessories
Purchasing Parts & Accessories
Before you to register your product and personalize your printer model number (see the front of the unit) and have the correct part number and description of our web sites
http://my.okidata.com (allows you purchase, know your own support...
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