Combined Output Diagnostic Tests; Image On Drum Procedure; Automatic Detoning Procedure - Xerox 3001 Service Manual

Combined Output Diagnostic Test
Combined Output Diagnostic Test
This procedure allows the testing of two or
Image on Drum Procedure
more components at the same time.
~ n t e r the diagnostic mode.
This procedure allows you to isolate the copy
-
quality problems by observing the image on
Use the
A
button to scroll up through the drum before transfer.
If the defect is
the list of diagnostic code numbers, and
visible on the drum before transfer, the
use the
vutton
to
down through defect is related t o the charge, the image, or
the list of diagnostic
'Ode
Use the developer. If the defect is visible on the
theaor vbutton
the
'Ode
for copy after transfer, the defect i s related to
the component t o be tested appears on the transfer or fuser.
the display.
.
-
1. Make a copy of the test pattern; press the
Press the Start button and the component
Stop button when the test pattern is
will operate.
almost half way into the document
Repeat the Steps 2 and 3 for the handler.
remaining components to be tested.
2. Remove the developer module.
'ressthe Stop button in order to exit the 3- If the defect is visible.on the developed
Diagnostic Test.
image, the defect cause i s related t o the
charge, the image, or the developer. If
the defect is not visible, the defect cause
is related to the transfer or the fuser.
Automatic Detoning Procedure
1. Enter the diagnostic code [46].
The main drive will come on after the fuser
is at run temperature. The HVPS will be on
and the cleaning blade solenoid will be
energized. The exposure lamp will not be
on. The copier will continue running and
the value displayed will flash until one of
the following conditions is met:
a. The toner concentration is within the
control point set in Code 4. (The display will
stop flashing.)
b. The Stop button is pressed.
c. The 15 minute timeout limit is reached.
2. Refer to the CQ25 Developer Bias RAP i f the
detone time approaches the 15 minute time
limit.
3. Make a copy of test pattern 82E5980. Check
that the density of the .70G5 paragraph is
between paragraphs 24.0 and 31.2 on the
82E7030 test pattern. If required, perform
the lmage Density Procedure (ADJ 9.4).
12/98
Diagnostics
6-8 3001