Brand: SHARP
Category: Office Equipment
Document Type: Manual
Language: EN
Manual for MX-C300P
Uploaded: Nov. 21, 2025, 8:48 p.m.
Warranty Information
None
This manual provides instructions for operating the SHARP MX-C300P Digital Full Color Printer. It covers setup, operation, maintenance, and troubleshooting. Key operations include powering the machine on/off, loading paper, printing from Windows and Macintosh, and using various printer functions like duplex printing, poster printing, and color adjustments. The manual also details system settings, web functions, and maintenance procedures.
Troubleshooting and error codes
| Problem | Cause and solution | Page |
|---|---|---|
| The machine does not connect to the network. | The LAN cable is disconnected.→ Make sure that the LAN cable is firmly inserted in the connectors on the machine and your computer. To connect the cable, see the "Software setup guide". | 7 |
| The machine does not operate. | The machine is not plugged into a power outlet.→ Plug the machine into a grounded outlet. | – |
| Power switch OFF.→ Turn the power switch ON. | 12 | |
| The machine is warming up.→ The machine requires some time to warm up after the power switch is turned on. While the machine is warming up, settings can be performed but printing is not possible. | 12 | |
| The front cover or the side cover is not completely closed.→ Close the front cover or the side cover. | – | |
| The machine is in auto power shut-off mode.→ When auto power shut-off mode has activated, only the [ENERGY SAVE] indicator () blinks; all other indicators and the display are off. The machine returns to normal operation when the [ENERGY SAVE] key () is pressed, when a print job is received. | 12 | |
| Misfeed occurs.→ To remove the misfeed, see "MISFEED REMOVAL". | 68 | |
| The tray is out of paper.→ Load paper. | 16 | |
| Paper misfeed. | The paper is outside of the specified size and weight range.→ Use paper within the specified range. | 13 |
| Paper curled or damp.→ Do not use curled or crimped paper. Replace with dry paper. During periods when the machine is not used for a long time, remove the paper from the tray and store it in a dark place in a bag to prevent moisture absorption. | – | |
| Paper is not loaded properly.→ Make sure the paper is properly installed. | 16 | |
| Pieces of paper inside machine.→ Remove all pieces of misfed paper. | 68 | |
| Several sheets of paper stick together.→ Fan the paper well before loading it. | – | |
| A paper misfeed has occurred in the tray.→ Turn the paper over and/or turn it around, and reload. | 16 | |
| Too much paper is loaded in the tray.→ If the stack of paper is higher than the indicator line on the tray, remove some of the paper and reload so that the stack does not exceed the line. | 16 | |
| The guides on the bypass tray do not match the width of the paper.→ Adjust the guides to match the width of the paper.If the paper guide presses too hard against the paper, a misfeed may occur. Adjust the guide so that it lightly contacts the paper. | 17 | |
| The bypass tray extension is not pulled out.→ When loading paper, open the extension. | 17 | |
| The bypass paper feed roller is dirty.→ Clean the roller. | 79 | |
| Paper size for a paper tray cannot be set. | Printing is performed.→ Set the paper size after printing is complete. | 9 |
| The machine has stopped temporarily due to running out of paper or a misfeed.→ Load paper or remove the misfeed, and then set the paper size. | 16, 68 | |
| A print job stops before it is finished. | The paper output tray is full.→ Remove the output in the paper output tray to resume printing. | 7 |
| The tray is out of paper.→ Load paper. | 16 | |
| The display turns off. | Any other indicators turned off.→ If other indicators are lit, the machine is in "Preheat mode". Press any key on the operation panel to resume normal operation. | 12 |
| [ENERGY SAVE] indicator ( ) blinks.→ The machine is in auto power shut-off mode. Press the [ENERGY SAVE] key () to resume normal operation. | 12 | |
| Lighting fixture flickers. | The same power outlet being used is for the lighting fixture and the machine.→ Connect the machine to a power outlet which is not used for other electric appliances. | – |
| The machine does not print. (ONLINE indicator ( ) does not blink.) | The machine is set to off-line mode.→ If the ONLINE indicator ( ) is not on, press the [SPECIAL FUNCTION] key ( ) and then use the [ ] key to select "Online/Offline". | 59 |
| The machine is not correctly connected with your computer.→ Check both ends of the printer cable and make sure you have a solid connection. Try a known good cable. For information on cables, see "SPECIFICATIONS (START GUIDE)". | 7 | |
| Your machine is not selected correctly in the current application for the print job.→ When choosing "Print" from the "File" menu located in applications, be sure you have selected "SHARP MX-XXXX" (where XXXX is the model name of your machine) printer displayed in the "Print" dialog box. | – | |
| The printer driver has not been installed properly.→ Follow these steps to check and see if the printer driver is installed.1 Click the "Start" button, and then click "Devices and Printers".In Windows Vista, click the "Start" button, click "Control Panel", and then click "Printer".In Windows XP, click the "start" button, and then click "Printers and Faxes".2 If the "SHARP MX-XXXX" printer driver icon is shown but you still cannot print, the printer driver may not have been installed correctly. In this case, delete the software and then reinstall it. | – | |
| The port setting is not correct.→ Printing is not possible if the printer driver port setting is not correct. Set the port correctly. For more information, see the Software Setup Guide. | – | |
| Printing is disabled.→ If "Disable Print by Inv. User" is enabled in the system settings, printing will not be possible. Consult the administrator. | 90 | |
| The machine does not print. (ONLINE indicator ( ) was blinking.) | The tray size settings are not the same on the machine and in the printer driver.→ Make sure that the same tray paper size is set on the machine and in the printer driver. To change the tray's paper size setting on the machine, see "CHANGING THE PAPER SIZE SETTING OF A TRAY" (p.19) or see Software Setup Guide to change it in the printer driver. | 19 |
| The specified size of paper has not been loaded.→ Load the specified size of paper in the paper tray. | 16 | |
| Printing is slow. | Simultaneous use of two or more application software programs.→ Start printing after quitting all unused application software programs. | – |
| The printed image is light and uneven. | The paper is loaded so that printing takes place on the back side of the paper.→ Some paper types have a front and back side. If the paper is loaded so that printing takes place on the back side, toner will not adhere well to the paper and a good image will not be obtained. | 16 |
| The printed image is dirty. | You are using paper that is outside the specified size and weight range.→ Use paper within the specified range. | 13 |
| Paper curled or damp.→ Do not use curled or crimped paper. Replace with dry paper. During periods when the machine is not used for a long time, remove the paper from the tray and store it in a dark place in a bag to prevent moisture absorption. | – | |
| You did not set sufficient margins in the paper settings of your application.→ The top and bottom of the paper may be dirty if the margins are set outside of the specified print quality area.→ Set the margins in the software application within the specified print quality area. | – | |
| Black dots or smudges appear on the printed output.→ Run fixing cleaning mode. The letter "V" is printed on a sheet of paper and the fusing unit is cleaned. | 91 | |
| The printed image is skewed or it runs off the paper or the image is cut off. | The paper loaded in the tray is not the same size as that specified in the printer driver.→ Check if the "Paper Size" options suit the size of the paper loaded in the tray.If the "Fit To Paper Size" setting is activated, make sure that the paper size selected from the drop-down list is the same as the size of the loaded paper. | – |
| The orientation of document setting is not correct.→ Click the "Main" tab in the printer driver setup screen, and verify if the "Image Orientation" option is set to your requirements. | – | |
| Paper is not loaded properly.→ Make sure the paper is properly loaded. | 16 | |
| You did not correctly specify the margins for the application in use.→ Check the layout of the document margins and the paper size settings for the application you are using. Also check if the print settings are specified correctly to suit the paper size. | – | |
| Wrinkles appear in the paper or the image disappears in places. | The paper is outside of the specified size and weight range.→ Use paper within the specified range. | 16 |
| Paper curled or damp.→ Do not use curled or crimped paper. Replace with dry copy paper. During periods when the machine is not used for a long time, remove the paper from the tray and store it in a dark place in a bag to prevent moisture absorption. | – | |
| The fusing unit release levers were not returned to their original positions→ If the fusing unit release levers are not returned, poor toner adhesion, smudging, and lines may occur. Be sure to press both levers up to return to their original positions. | 70 |