231
6. Troubleshooting
Scanning problems
Condition
Suggested solutions
The scanner does not work.
•
Make sure that you place the original to be scanned face down on the scanner glass, or face up in the document feeder (see
"Loading originals" on page 49).
•
There may not be enough available memory to hold the document you want to scan. Try the Prescan function to see if that works.
Try lowering the scan resolution rate.
•
Check that the machine printer cable is connected properly.
•
Make sure that the machine printer cable is not defective. Switch the printer cable with a known good cable. If necessary, replace
the printer cable.
•
Check that the scanner is configured correctly. Check scan setting the application you want to use to make certain that the scanner
job is being sent to the correct port (for example, USB001).
The unit scans very slowly.
•
Check if the machine is printing received data. If so, scan the document after the received data has been printed.
•
Graphics are scanned more slowly than text.
•
Communication speed slows in scan mode because of the large amount of memory required to analyze and reproduce the scanned
image. Set your computer to the ECP printer mode through BIOS setting. It will help to increase the speed. For details about how
to set BIOS, refer to your computer user’s guide.
Summary of Contents for SCX-4021S Series
Page 3: ...3 BASIC 5 Appendix Specifications 103 Regulatory information 113 Copyright 125 ...
Page 43: ...Media and tray 43 2 Menu Overview and Basic Setup ...
Page 76: ...Redistributing toner 76 3 Maintenance ...
Page 83: ...Cleaning the machine 83 3 Maintenance ...
Page 91: ...Clearing original document jams 91 4 Troubleshooting ...
Page 95: ...Clearing paper jams 95 4 Troubleshooting ...
Page 124: ...Regulatory information 124 5 Appendix 26 China only ᆇ 䋼 ...