Kyocera FS 4020DN User Manual

6-2Troubleshooting
General Guidelines
The table below provides basic solutions for problems you may 
encounter with the printer. We suggest you consult this table to 
troubleshoot the problems before calling for service repairs.
Tips
Printer problems may be solved easily by following the tips below. When 
you have encountered a problem that following the above guidelines will 
not solve, try the following:
•Turn the printer power off and wait for several seconds. Then, turn 
on the printer.
• Restart...

Troubleshooting6-3
Print Quality Problems
The tables and diagrams in the following sections define print quality 
problems and the corrective action you can conduct to solve the 
problems. Some solutions may require cleaning or replacing parts of the 
printer. 
If the suggested corrective action will not solve the problem, call for 
service.
Printed Results Corrective Action
Completely blank printout Check the toner container.
Open the top cover and check that the toner container is correctly 
installed...

6-4Troubleshooting
Gray backgroundCheck the operation panel. 
If the Toner low  message is displayed and  [Attention] indicator is 
flashing, install a new toner kit. To replace toner, refer to  Toner 
Container Replacement  on page1-2
Check the print density.
Display the print menu from the operation panel and select a lighter 
density setting.
Dirt on the top edge or back of the 
paper Clean the parts in the paper paths-such as the paper cassette, etc.
Printing incomplete or out of position Check that...

Troubleshooting6-5
Error Messages
The following table lists errors and maintenance messages that you can 
be dealt with by yourself.
If Call service  or Error.Power off.  is displayed, turn off the 
printer then turn it back on to see if the printer has recovered. If the 
printer has not recovered, turn off the printer, disconnect the power cord, 
and contact your service representative or authorized service center.
Some errors cause the alarm to sound. To stop the alarm, press 
[Cancel] . 
Message...

6-6Troubleshooting
Close
rear unitThe rear unit of the printer is open. Close the printer rear unit.
Close
top cover The top cover of the printer is open. Close the printer top cover.
Device busy This message is displayed when 
Remove Device was selected while a USB memory was 
being used.
The previous screen is displayed again 1 or 2 seconds.
Duplex disabled
Press GO You attempted to print with a paper size and paper type that cannot be used for duplex 
printing. Press 
[GO] to print onto one-side of...

Troubleshooting6-7
Install MKReplace Maintenance Kit which is displayed on the message display. Replacement of the 
maintenance kit is necessary at every 300,000 pages of printing and requires professional 
servicing. Contact your service technician.
Job not stored
Press GO
Printing using the Job Box function failed becaus e there was insufficient space available on 
the hard disk or RAM disk, or because the RAM disk was disabled when demounting the hard 
disk. To print an error report and return the...

6-8Troubleshooting
Missing
developer unitThe developer unit is either not installed or incorrectly inserted. Insert the developer unit 
securely.
No multi copies
Press GO Multiple copies cannot be printed because the RAM disk is disabled or the hard disk is not 
installed. There is no available RAM disk or hard disk space. Delete unnecessary files. Press 
[GO]
 to print error report.
Original toner
installed Displayed when the installed toner is the original Kyocera product.
Paper jam
############### A...

Troubleshooting6-9
Use alternative?
Cassette 1When the cassette does not contain any paper that matches the print data (paper size and 
type), this message allows you to specify an alternative cassette to us\
e instead. A paper 
source number is only displayed when an optional paper feeder is installed. To print from a 
different paper source, refer to 
Paper Feed Mode (Setting the paper feed source)  section in 
the  Advanced Operation Guide .
Wrong Account Displayed when an attempt is made to register...

6-10Troubleshooting
Storage Error Codes
Hard Disk Errors
CompactFlash (CF) Card and USB Flash Memory Errors
Code Meaning
01Hard disk format error. If this error recurs even if the power has been turned 
off and then on, reformat the hard disk.
02 The disk system is not installed. Recheck the requirements for using the 
system and the devices.
04 There is no available hard disk space. Delete unnecessary files, etc., in 
order to free up space.
05 The specified file does not exist in the hard disk.
06...

Troubleshooting6-11
RAM Disk Errors
Ready, Data, and Attention Indicators
The following indicators light during normal operation and whenever the 
printer needs attention. Depending on the status of lighting, each 
indicator has the following meaning:
Code Meaning
01
Format error. Try turning the power off and on again.
02 RAM disk mode is  Off. Turn RAM disk mode  On from the operation panel.
04 No disk space. Purge unnecessary files.
05 Specified file is not on disk.
06 Insufficient printer memory to...