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REPAIRS/ADJUSTMENTS
DocuPrint C55/C55mp/[NC60]
4-67
ADJ 9.1
ADJ 9.1 EA “TONE DOWN”
PROCEDURE
PURPOSE
The purpose of this procedure is to “Tone Down”
the color developer. It is also used to put the
printer back in operation after an EA fault.
INITIAL ACTION
Refer to GP 3.2 in Section 6 and make sure that
the Patch Control is switched off.
CHECK
1. Enter Normal diagnostics. Scroll to the
TEST PRINT program and press
Form Feed
[1]
to run a test print. While the print is
running, observe the KT=__, CT=__, MT=__,
YT=__ values.
2. If any of the three color (C, M, Y) toner
concentration values are below 10, that color
is overtoned. Continue with Step 3 to correct
the overtoned condition.
3. With TEST PRINT displayed press
Enter [7]
.
4. Use the
Menu [3]
key to scroll to MULTI
OFF. Press
Next [6]
until the display
indicates MULTI ON. (This will put the
TEST PRINT program in the multicopy
mode.)
5. Use the
Menu [3]
key to scroll to TONER
ON. Press
Next [6]
until the display
indicates TONER OFF. (This will shut off all
toner dispensing.)
6. Press
Media Server [2]
to return to TEST
PRINT, then press
Form Feed [1]
to make
multiple Test Prints.
7. Observe the KT=__, CT=__, MT=__, YT=__
values. The values should begin to “count
up” as toner is used and not replenished.
8. When the lowest value reaches 10, press
Media Server [2]
to stop the Test Prints.
9. Switch the Printer off and then on.
10. If the Printer Boots without the EA fault,
continue with step 11. If the printer still has
the EA fault, repeat steps 3 through 10 and
run multiple test prints with the toner off until
the toner concentration value in question
increases and the EA fault no longer occurs.
11. Print a diagnostic sheet.
a.
(C55/C55mp)
Off Line
, Service, Test
Patterns, Diagnostics.
b.
[NC60]
Menu Up
, to Service,
Value Up
to Diag Summary,
Enter
.
13. Compare the Toner Concentration Control
Point with the Toner Concentration Value. If
any of the C, M, Y Values are 15 points
below the Control Point this color is
overtoned, continue with this procedure.
14. Run the color step pattern for the color that is
overtoned
a.
(C55/C55mp)
Off Line
, Service, Test
Patterns, Pattern Type, PCL, (overtoned
color) Step. Run at least 25 prints.
b.
[NC60]
Menu Up
to Service,
Item Up
to
test Patterns,
Value Up
to (overtoned
color) Step. Run at least 25 prints.
15. Repeat steps 11 through 13 until the Toner
Concentration Value is within 10 to 15 points
of the Control Point.
NOTE: This procedure puts the toner concentra-
tion back within the controlling range. If the
problem reoccurs, refer to GP 3.2 in section 6 to
verify that Patch Control is off and the refer to the
EA RAP if necessary.
Содержание DocuPrint C55
Страница 14: ...SERVICE CALL PROCEDURES 2 99 NOTES 1 6 DocuPrint C55 C55mp NC60 Notes ...
Страница 56: ...OTHER FAULTS RAPs 2 99 NOTES 2 42 DocuPrint C55 C55mp NC60 NOTES ...
Страница 76: ...IMAGE QUALITY SPECIFICATIONS 2 99 NOTES 3 20 DocuPrint C55 C55mp NC60 NOTES ...
Страница 130: ...REPAIRS ADJUSTMENTS 2 99 NOTES 4 42 DocuPrint C55 C55mp NC60 NOTES ...
Страница 216: ...GENERAL PROCEDURES 2 99 NOTES 6 18 DocuPrint C55 C55mp NC60 Notes ...
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