Brand: SHARP
Category: Office Equipment
Document Type: Manual
Language: EN
Manual for MX-B350W/MX-B450W
Uploaded: Nov. 21, 2025, 8:25 p.m.
Warranty Information
No explicit warranty period is stated in the provided manual sections.
1. Setup and Basic Operations:
- Familiarize yourself with the machine's exterior and interior parts.
- Learn how to turn the power on and off.
- Understand the operation panel layout and functions.
- Learn how to use the display for various settings and messages.
2. Core Functions:
- Copying: Place originals using the document feeder or glass, select functions like paper size, exposure, and copy ratio, then press START.
- Printing: Install printer drivers and print from applications, with options for Windows and Mac OS.
- Faxing: Connect the line, set date/time, program sender information, and send/receive faxes using various methods like auto-dialing and manual transmission.
- Scanning: Scan documents to image files, send to FTP, network folders, USB memory, or email.
3. Advanced Features and Maintenance:
- Explore convenient functions for copying, printing, and faxing, such as duplex copying, N-Up copying, and program storage.
- Learn about adjusting image settings like exposure, sharpness, and background suppression.
- Utilize web functions for remote configuration and management.
- Troubleshoot common issues like paper jams, poor print quality, and connectivity problems.
4. System Settings:
- Configure various system settings, including network, user control, device control, operation settings, and energy saving modes.
Troubleshooting and error codes
| Problem | Cause and solution | Page |
|---|---|---|
| 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. | 1-11 | |
| The machine is warming up. → The machine requires some time to warm up after the power switch is turned on. Wait until "Ready to copy." appears. | 1-11 | |
| 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. → The machine returns to normal operation when the [ENERGY SAVE] key is pressed, when a print job or fax is received, or when scanning from a computer is started. | 1-12 | |
| Misfeed occurs. → To remove the misfeed, see "MISFEED REMOVAL". | 6-14 | |
| The tray is out of paper. → Load paper. | 1-17 | |
| The power is on, but copying does not take place. | → Press the [COPY] key to select copy mode. | 2-2 |
| Copies are too dark or too light. | An appropriate exposure for the original has not been selected. → Select a suitable exposure mode with the [EXPOSURE] key and set an appropriate exposure level with the [▼] or [▲] key. | 2-8 |
| The text is blurred when I make a copy. | Select a suitable exposure for the original in the copy exposure screen. → Change the exposure to "Text" with the [EXPOSURE] key. | 2-8 |
| Blank copies. | The original is not placed face up in the document feeder or face down on the document glass. → Place the original face up in the document feeder or face down on the document glass. | 1-30 |
| Part of the image is cut off or there is too much blank space. | The original was not placed in the correct position. → Place the original correctly. | 1-30 |
| The size of paper loaded in the tray was changed without changing the tray's paper size setting. → Be sure to change the tray's paper size setting whenever you change the size of paper loaded in the tray. | 1-29 | |
| Wrinkles appear in the paper or the image disappears in places. | The paper is outside of the specified size and weight range. → Use copy paper within the specified range. | 1-17 |
| Paper curled or damp. → Do not use curled or crimped paper. Replace with dry copy paper. | – | |
| The fusing unit pressure adjusting levers were not returned to their original positions → If the fusing unit pressure adjusting levers are not returned, poor toner adhesion, smudging, and lines may occur. Be sure to press both levers down to return to their original positions. | 1-26 | |
| Paper misfeed. | The paper is outside of the specified size and weight range. → Use copy paper within the specified range. | 1-17 |
| Paper curled or damp. → Do not use curled or crimped paper. | – | |
| Paper is not loaded properly. → Make sure the paper is properly installed. | 1-17 | |
| Pieces of paper inside machine. → Remove all pieces of misfed paper. | 6-14 | |
| 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. | 6-21 | |
| 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. | 1-21 | |
| The guides on the bypass tray do not match the width of the paper. → Adjust the guides to match the width of the paper. | 1-24 | |
| The bypass tray extension is not pulled out. → When loading paper, open the extension. | 1-24 | |
| The bypass paper feed roller is dirty. → Clean the roller. | 1-35 | |
| Copies are smudged or dirty. | The document glass or the underside of the document feeder is dirty. → Clean regularly. | 1-34 |
| Original smudged or blotchy. → Use a clean original. | – | |
| White or black lines appear on copies. | The scanner glass for the document feeder is dirty. → Clean the long, narrow scanning glass. | 1-34 |
| Paper size for a paper tray cannot be set. | Copying or printing is performed. → Set the paper size after copying or printing is complete. | – |
| 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. | 6-14 | |
| A copy job stops before it is finished. | The paper output tray is full. → Remove the output in the paper output tray to resume printing. | – |
| The tray is out of paper. → Load paper. | 1-17 | |
| 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. | 1-13 |
| [ENERGY SAVE] indicator blinks. → The machine is in auto power shut-off mode. Press the [ENERGY SAVE] key to resume normal operation. | 1-12 | |
| 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. | – |