Problem
Causes
Solutions
The background of received
images appears dirty.
Images from the back of the
page appear.
Image density is too high.
Adjust the image density. See
page 164 "Specifying Scan Settings for
Scanning".
Received image is too light.
When using moist, rough, or
processed paper, areas of
print may not be fully
reproduced.
Use the recommended paper. For
details about the recommended paper,
see page 62 "Supported Paper".
The image density has been
specified too low.
Increase the image density. For details
about how to change the density, see
page 120 "Adjusting Image Density".
The original of the
transmitted fax was printed
on paper that is too thin.
Ask the sender to reprint the original on
thicker paper, and then fax it again.
When an Error Is Notified via a Report or E-mail
When a report is printed from the machine
Error Report
An Error Report is printed if a document cannot be successfully sent or received.
Possible causes include a problem with the machine or noise on the telephone line. If an error
occurs during transmission, resend the original. If an error occurs during reception, ask the sender
to resend the document.
• If an error happens frequently, contact your service representative.
• The "Page" column gives the total number of pages.
Power Failure Report
• Right after recovery from power failure, the internal battery needs to be sufficiently recharged
to guard against future data loss. Keep the machine plugged in and the power on for about
24 hours after the power loss.
Even if the power is turned off, the contents of the machine memory (for example, programmed
numbers) will not be lost. Lost items will include any fax documents stored in memory using Memory
Transmission or Reception.
If a file deleted from memory, Power Failure Report is automatically printed as soon as the power is
restored.
10. Troubleshooting
390
Summary of Contents for M C251FW
Page 2: ......
Page 23: ...3 2 1 ECC105 Interior ECC106 4 3 2 1 Guide to Components 21 ...
Page 45: ...Deleting characters 1 Press to delete characters Entering Characters 43 ...
Page 48: ...1 Guide to the Machine 46 ...
Page 82: ...2 Paper Specifications and Adding Paper 80 ...
Page 100: ...3 Printing Documents 98 ...
Page 124: ...4 Copying Originals 122 ...
Page 170: ...5 Scanning Originals 168 ...
Page 216: ...6 Sending and Receiving a Fax 214 ...
Page 270: ...7 Configuring the Machine Using the Control Panel 268 ...
Page 346: ...6 Close the ADF cover 9 Maintaining the Machine 344 ...
Page 360: ...Main unit DUE292 1 3 2 1 DUE288 2 DUE289 10 Troubleshooting 358 ...
Page 361: ...3 DUE290 Waste toner bottle ECC168 Paper feed unit DUE320 1 Removing Paper Jams 359 ...
Page 440: ...12 Appendix 438 ...
Page 445: ...MEMO 443 ...
Page 446: ...MEMO 444 EN GB EN US EN AU M0EQ 8504A ...
Page 447: ......
Page 448: ...EN GB EN US EN AU M0EQ 8504A 2021 2022 Ricoh Co Ltd ...