Service manual

FO-DC550 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 2
3. Operation panel
1 [MODE SELECT] key / Mode indicators
Press this key to select the mode. The indicator of the selected
mode lights (copy, printer, scanner, fax mode indicators).
2 Display
This shows messages indicating the machine status and any
problems that occur, as well as user programs and function setting
menus.
3 Numeric keys
Use these to enter the number of copies and other numerical
settings.
The keys can also be used to select items in function setting menus.
4 [CLEAR] key ( )
Use this to clear the set number of copies, as well as cancel a job
that is in progress. When a setting menu appears, use this key to
move back to the previous menu level.
5 Power save indicator
This lights up when the power save function is activated.
6 RSPF indicator
This lights up when an original is placed in the RSPF.
7 Error indicator
This lights steadily or blinks when a paper misfeed or other error
occurs.
8 [TRAY SELECT] key ( )
Use to select the paper tray that has the desired paper for copying.
9 Tray location indicator
Indicates the selected paper tray. The indicator blinks when the tray
is out of paper during operation or is not closed properly.
10 [MENU] key
Press this key to select the paper size for copying, to configure a
user program or to display the total count.
11 [2-SIDED COPY] key
Press to select the automatic two-sided copying mode.
12 [E-SORT/SP.FUN] key
Press to select the sort function, 2 IN 1 copy function, or margin shift
function.
13 [ ] key ( ), [ ] key ( ), [ENTER] key
Press the [ ] key ( ) or [ ] key ( ) to select an item in a
function setting menu.
Press the [ENTER] key to enter a selection.
14 [EXPOSURE] key
Use to switch from auto exposure adjustment to text mode or photo
mode.
15 [COPY RATIO] key
Press to select an enlargement or reduction ratio.
To select a preset ratio setting, press the [COPY RATIO] key and
select the desired preset ratio. To select a ratio that is not preset,
press the [COPY RATIO] key, select the preset ratio that is closest to
the desired ratio, and then press the [ ] key ( ) or [ ] key
( ) to increase or decrease the ratio in increments of 1%.
16 [START] key ( ) / Ready indicator
The ready indicator lights up when copying or scanning is possible.
To begin copying, press the [START] key ( ).
The [START] key ( ) is also pressed to return to normal operation
from auto power shut-off mode.
17 [CLEAR ALL] key ( )
This returns all functions to the default settings. When pressed in a
setting menu, this returns the settings and display to the initial state.
18 Shows the current copy ratio.
19 Shows the selected paper size. 20 Shows the number of copies that has been entered with the numeric
keys.
21 A checkmark " " appears when the exposure has been changed,
or when two-sided copying, sort, 2 IN 1, or margin shift is selected.
22 Rapid keys
Press one of these keys to dial a fax or telephone number
automatically.
23 [MEMORY] key / indicator
Used for sending faxes in memory (indicator is lit) or direct sending
(indicator is not lit).
24 [SPEED/SEARCH] key
Press this key to dial a two digit Speed Dial number.
During character inputting, use this key to delete an incorrect entry.
Also, press this key twice to search for an automatic dialing number.
25 [BROADCAST] key
Press this key to send originals to a group of receiving fax machines.
26 [RECEPTION MODE] key
Press this key to select the mode of reception.
27 [REDIAL/PAUSE] key
Press this key to automatically redial the last number you dialed.
Also, press this key to insert a pause when entering numbers.
28 [SHIFT] key / indicator
Press this key to switch between upper and lower case.
29 [RESOLUTION] key
Press this key to adjust the resolution before sending faxes.
30 [CONTRAST] key
Press this key to adjust the contrast before sending faxes.
31 [COVERSHEET] key
Press this key to automatically add a cover sheet and message to a
fax.
32 LINE/FAX DATA indicator
Lit when sending/receiving faxes, blinking when receiving data.
33 [LIST] key
Press this key to select from a list of available reports.
34 [SPEAKER] key
Press this key to begin manual dialing. (To close the line, press the
[SPEAKER] key again.)
35 [2-SIDED TX] key
Press this key to fax a two-sided original.
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SHIFT
MEMORY
CONTRAST
LINE/FAX DATA SPEAKER
LIST
SPEED/
SEARCH
BROAD-
CAST
COVER
SHEET
RECEPTION
MODE
REDIAL/
PAU SE
2-SIDED TX
RESOLU-
TION
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33 34 35 13
READY TO COPY.
100% 8.5x11 0
Display
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FO-DC550