Epson AcuLaser C9100 Reference Manual page 302

Form Data Canceled
Unable to store form overlay data on the printer's optional Hard
Disk Drive. Either the drive is full, or the maximum number of
form overlay files has been reached. Delete any form overlay files
you no longer need, then try storing the new overlay again.
To clear this error, select
Reset Menu. For instruction about accessing the control panel
menus, see "How to access the control panel menus" on page 338.
Form Feed
The printer is ejecting paper due to a user request. This message
appears when pressing the N Start/Stop button once to make the
printer offline, then holding down the N Start/Stop button for
more than two seconds in order to print data that has no form feed
command.
Format Error ROM A/Format Error ROM B
An unformatted ROM module has been inserted.
To clear this error, either press the N Start/Stop button or turn off
the printer and remove the ROM module, then reinstall the ROM
module. If that fails to clear the error, contact your dealer.
Formatting HDD
The Hard Disk Drive is being formatted.
Hard Disk full
The optional Hard Disk Drive is full and you cannot save any
data. Delete the unnecessary data from the Hard Disk Drive. To
clear this error, select
Reset Menu. For instruction about accessing the control panel
menus, see "How to access the control panel menus" on page 338.
302
Troubleshooting
from the control panel's
from the control panel's