How to fix 'INSTALL PAPER CASSETTE 440: TRAY 1 OPEN' error on Oki C3200n?
- Jjacob27Aug 30, 2025
If your Oki Printer shows 'INSTALL PAPER CASSETTE 440: TRAY 1 OPEN', ensure that Tray 1 is correctly installed and pushed fully into the printer.













How to fix 'INSTALL PAPER CASSETTE 440: TRAY 1 OPEN' error on Oki C3200n?
If your Oki Printer shows 'INSTALL PAPER CASSETTE 440: TRAY 1 OPEN', ensure that Tray 1 is correctly installed and pushed fully into the printer.
What does 'LOAD mmm AND PRESS ONLINE SWITCH 490: MP TRAY EMPTY' mean on my Oki Printer?
If your Oki Printer displays 'LOAD mmm AND PRESS ONLINE SWITCH 490: MP TRAY EMPTY', it means a print job from the MP Tray has been received but the tray is empty. Load the requested media (mmm) into the MP Tray and press ON-LINE.
How do I fix a toner sensor error on my Oki C3200n?
To resolve a TONER SENSOR ERROR on your Oki Printer, open the top cover and confirm that the indicated toner cartridge is present and correctly seated: C = Cyan, Y = Yellow, M = Magenta, K = Black.
What does 'PRESS ONLINE SW INVALID DATA' mean on my Oki C3200n Printer?
If your Oki Printer displays 'PRESS ONLINE SW INVALID DATA', press the ON-LINE button. Then, reprocess and resend the print job.
How to fix blurred print (letter edges) on Oki Printer?
If the print on your Oki Printer is blurred (letter edges), the LED may be dirty. Clean the LED with lens cleaner or a soft tissue.
What to do if Oki C3200n Printer cannot print desired color because toner is low?
If you cannot print the desired color on your Oki Printer because the toner is low, replace the toner cartridge.
How to resolve blurred print (one side of page) on Oki C3200n Printer?
If your Oki Printer produces blurred print on one side of the page, the top cover might not be properly closed. Press the cover release latch, open, and then close the cover.
What if toner cartridges are not seated properly in Oki C3200n Printer?
If one or more toner cartridges are not seated properly in your Oki Printer, open the top cover and ensure each toner cartridge is fully seated and that each toner cartridge lock lever is pushed all the way back.
Why is my Oki Printer printing with fading in patches?
If you notice fading in patches on your Oki Printer, the paper may be moist. Store paper within specified temperature and humidity levels.
How to fix vertical fading on Oki Printer?
If your Oki Printer is producing vertically faded prints, the LED head may be dirty. Clean the LED head with lens cleaner or soft tissue.
| Printer Type | Color Laser Printer |
|---|---|
| Print Speed (Black) | 20 ppm |
| Print Speed (Color) | 20 ppm |
| Print Resolution | 1200 x 600 dpi |
| Resolution | 1200 x 600 dpi |
| Monthly Duty Cycle | 30, 000 pages |
| Standard Paper Capacity | 250 sheets |
| Duplex Printing | Manual |
| Weight | 48.5 lbs |
| Connectivity | Ethernet, USB |
| Operating System Compatibility | Windows, Mac OS |
| Media Sizes | A4, A5, Letter, Legal |
Step-by-step guide for loading paper into the main trays.
Details on replacing the toner cartridges.
Information on replacing the image drums.
Instructions for replacing the transfer belt unit.
Guidance on replacing the fuser unit.
How to navigate and modify printer menu settings.
Explains causes and general procedures for printer paper jams.
Specific steps to clear a paper jam in the top cover area.
Detailed steps for clearing a jam within the duplexer unit.
Steps to clear a paper jam originating from the MP Tray.
Interprets and provides solutions for printer display messages.
Addresses issues like blurred print, fading, lines, and smudging.
Solutions for configuring and resolving USB connection issues.
How the printer driver settings interact with the operator panel.
Instructions for printing on both sides of the paper.