Oki ML420 Support Question
Oki ML420 Support Question
Find answers below for this question about Oki ML420.Need a Oki ML420 manual? We have 17 online manuals for this item!
Question posted by WiliamGamble on November 13th, 2014
Ml420 Rear Tractor Feed Reverses Randomly
ML420 will randomly reverse and unload paper from rear tractor feed. works fine then it will just reverse and paper feed until it unloads the paper and continues for a little bit after it does this. you can reinstall paper and set back at home position and then it will work normal.
Current Answers
Related Oki ML420 Manual Pages
Network User's Guide for OkiLAN 6020e - Page 28
... is set to no. Section 2 - Chapter 1 - An authentication failure trap is required for specific destination addresses and can send traps on toner low, paper jam, and printer cover open, depending on or reset. When any configuration changes to the OkiLAN 6020e. Additionally, the OkiLAN 6020e can be set both UDP and IPX...
Microline 420/421 & 490/491 Setup Guide - Page 12
See paper size reference marks on tractor lock levers (1) to release tractors. 2. Open the tractor covers (2). Locate tractors. Above view is from rear. Pull up on printer. 3. Microline 420/421 & 490/491
1. This action raises the paper separator.
12 Position right-hand tractor for width of paper.
Guide: User's, ML420/421 (English) - Page 5
... 7
Chapter 2: Helpful Hints 8
Saving Money: Forms Tear-Off 8 Saving Time 8
Internet Support 8 Paper Park 8 Operation Tips 9 Top of Form (TOF 9 Turning the Platen Knob 9 Controlling Access to the Printer 9
Chapter 3: Using Your Printer 10
Parts Identification: Rear Feed (Continuous Forms 10 Parts Identification: Top Feed (Single Sheets 11
Top of Form (TOF 12 Top of Form (TOF...
Guide: User's, ML420/421 (English) - Page 6
...44
Rear Feed 44 Top Feed (Single Sheets 53 Clearing Paper Jams 55 Rear-Feed Paper Jams 55 Rear-Feed, Repeating Paper Jams 56 Single-Sheet Paper Jams 58 Cleaning the Housing 59
Chapter 6: Troubleshooting 60
General Information 60 Problems / Solutions 61
Appendix A: Parts & Accessories 66
Purchasing Parts & Accessories 66 Replacement Parts 67 Accessories 68
Appendix B: Printer Control...
Guide: User's, ML420/421 (English) - Page 7
...
Printer Features
• Super reliable, durable operation: 20,000 hours Mean Time Between Failures (MTBF) at :
• www.okidata.com • my.okidata.com
7 On-line documents are available for viewing and downloading via the Internet at 25% duty cycle and 35% page density
• Advanced paper handling, with built-in rear push tractor...
Guide: User's, ML420/421 (English) - Page 10
Sheet Guide Paper Lever On-Off Switch Platen Knob Control Panel Acoustic Cover Access Cover
Note: For rear feed, the paper lever must be forward.
10
Chapter 3: Using Your Printer
Parts Identification: Rear Feed (Continuous Forms)
Note: The serial number of your printer is on a label on the back, beside "S/N."
Guide: User's, ML420/421 (English) - Page 17
... position.
Paper remains in this causes uneven print registration due to the print position (TOF) and printing begins. Notes: The status of the Forms Tear-Off menu setting affects how you must enter the menu and change the setting to be used for rear feed continuous forms, bottom feed continuous forms (with the optional push tractor installed...
Guide: User's, ML420/421 (English) - Page 18
...form paper from the printer. Paper Park
Important! Never park labels!
Paper park allows you to switch to the tear off position manually by pressing TEAR (5). When you can advance
• rear-feed continuous forms loaded on the built-in tractor or
• bottom-feed continuous forms loaded on the optional push tractor
up to single-sheet printing without removing continuous feed paper from...
Guide: User's, ML420/421 (English) - Page 44
Lock Lever Upper Tractor Cover Pins
Loading Rear Feed Paper from the Front of the Printer."
1 Make sure the paper lever is forward (position marked "REAR").
2 Open the access cover (1).
44 Microline 420/421 User's Guide
If you do not, skip down to the back of the printer. Loading Paper
Rear Feed
Note: If you have ready access to "Loading Rear Feed Paper from the...
Guide: User's, ML420/421 (English) - Page 49
... back to release them. Lock Lever Upper Tractor Cover Pins
2 Open the access cover (1). 3 Grasp the tabs and lift off the sheet guide.
1 Make sure the paper lever is forward (position marked "REAR").
4 Pull up on the lock levers to "Loading Rear Feed Paper from the Front of the Printer
Note: These instructions assume you do not...
Guide: User's, ML420/421 (English) - Page 50
... in place, then move the right tractor to ensure that the paper covers the paper out sensor.
5 You will find reference marks (1 in illustration below) on the printer for the two most common paper sizes:
ML420:
ML421:
7 Open the tractor covers and place continuous forms paper on the first two pins of the paper.
50 Microline 420/421 User's Guide...
Guide: User's, ML420/421 (English) - Page 55
... sure you open the access cover.
3 Open the access cover (1) and remove the pull-up roller assembly and close the access cover.
6 Turn on the printer and press FF/LOAD. Clearing Paper Jams
Rear-Feed Paper Jams
1 Turn off before you lock the tractor covers.
5 Lower the sheet guide, then install the pull-up roller assembly (2).
Guide: User's, ML420/421 (English) - Page 68
Accessories
Option
Part Number
Model ML420
Pull Tractor, Top-Mount 70030501
Push Tractor, Bottom-Mount 70030701
Roll Paper Stand 70023301
Model ML421 Pull Tractor, Top-Mount 70030601 Push Tractor, Bottom-Mount 70030801
Both Models Cut Sheet Feeder 70030101
Serial Interface 70012801 OkiLAN® 6120i 10/100 Base-T Ethernet
Internal Print Server (not shown 70046501
...
Guide: User's, ML420/421 (English) - Page 78
Print Method
Impact dot matrix
Printhead
9 pins, 0.30 mm (0.0118") diameter, with thermal protection
Interfaces
Standard: Centronics parallel, IEEE-1284 compliant USB 1.1
Optional: RS-232C Serial Ethernet Print Servers: 6120i ...
Guide: User's, ML420/421 (English) - Page 80
Resolution (Dots per inch)
60 x 216 dpi 120 x 216 dpi 240 x 216 dpi
72 x 72...EAN 8, EAN 13 • Interleaved 2 of 5 • Code 128 • Postnet
Paper Thickness: Tractor Feed
Rear Feed: 0.014" (0.36 mm) maximum Bottom Feed: 0.017" (0.44 mm) max.
Requires optional push or pull tractor.
80 Microline 420/421 User's Guide Graphics Resolution
Emulation IBM, Epson
Oki MICROLINE
Density Single...
Guide: User's, ML420/421 (English) - Page 81
...feed requires optional pull or push tractor
Specifications 81 Width Range: 3" to 10" (76 to 254 mm)
Interleaf continuous forms (orig. + 4 copies) Feed: Rear, Bottom*
Weight: 10 to 241 mm)
Envelopes, continuous feed, non-overlap type Feed... mm)
Carbonless continuous forms (orig. + 4 copies) Feed: Rear, Bottom*
Weight: 9 to 24 lb. Paper Specifications: ML420
Single (Cut) Sheets Feed: Top Only
...
Guide: User's, ML420/421 (English) - Page 82
...) Width Range: Not applicable
* Bottom feed requires optional pull or push tractor 82 Microline 420/421 User's Guide US Bond (45 to 90 g/m2) Width Range: 3" to 16" (76.2 to 406.4 mm)
Carbonless continuous forms Feed: Rear, Bottom*
Weight: 9 to 241.3 mm)
Card stock Feed: Bottom* Only
Weight: Max. 100 lb. Paper Specifications: ML421
Single (Cut) Sheet...
Guide: User's, ML420/421 (English) - Page 96
... Print Speed 7, 79 Print Suppress 31, 40 Printer Control Codes 69-77 Printer Drivers, Selecting 92-93 Printer Parameters 25 Printhead 78
Gap 21 Proportional Spacing 28, 40 Pull Tractor 68 Push Tractor 68
R
Rear Feed Continuous Forms 10 Form Tear-Off 29, 30 Jams, Repetitive 56 Line Spacing 29 Paper Jam 55 Skip Over Perforation 29
Receive Buffer...
Guide: User's, ML420/421 (English) - Page 97
... Paper 82 Width
Character 39 Double width printing 41 Page
Bottom Feed 29 Rear Feed 29 Top Feed 30 Paper 82 Setting in the Printer Menu .... 30, 39
Z
Zero character (slashed, unslashed) . 28, 41
Index 97 printer ...Thickness, Paper 80 Time Out 32, 41 Top Feed 81-84 Bottom Margin 30 Line Spacing 30 Pull Tractor 68 Single Sheet 11 Top of Form 35 Forms Tear-Off 8, 12, 17 Paper Shield...
Network User's Guide for OkiLAN 6120i - Page 30
... genConfigDirty variables to inform the manager it is power cycled or is a change a fundamental operating parameter of the printer. Section 2 - This signifies a reset is automatically set to reset, make any one of paper or is , they change in the private MIB under genConfigDirty. Certain variables are not actually used until it has...
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