Gp 2 Increased Imageable Area Setup; Gp 4 Intermittent Problem Rap; Specifications - Xerox DocuColor 12/DCCS50 Service Manual

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GP 2 Increased Imageable Area Setup

This procedure is for DC12 Copier/Printers only. Attempting to use this setup on DCCS50
machines may result in Image Quality problems.
The purpose of this procedure is to adjust the maximum imageable area to allow for full-bleed
printing of 11 x 17 in. images onto 12 x 18 in. paper, or A3 images onto SR-A3 paper. This will
allow oversize sheets to be trimmed to 11 x 17 or A3, with the image extending through the
trimmed area.
Prerequisites
The following hardware/software are required in order to implement this procedure:
Tag P39 (V5) or higher IOT software level
DC12 with one of the following DFEs:
EFI X12 with V1.5 software
Splash G620 with V2.5 software
Splash G630 with V3.0 software

Specifications

The guaranteed imageable area is as follows:
Print mode
12 x 18" paper - 297mm (+2.0/-0.5mm) x 438 mm (+13.0/- 0.5mm)
SR A3 paper - 297mm (+6.0/-0.5mm) x 438 mm (+6.0/- 0.5mm)
Copy mode
12 x 18" or SR A3 paper - 297mm x 432 mm (+/-0.5mm) @105% R/E
Procedure
NOTE: Registration adjustments are not affected by this procedure.
1.
Enter the Service Diagnostics Mode. Refer to
using the
PWS.
2.
Select Adjustments in the Service Entry Screen. dC131 NVM Read/Write is the default
screen.
3.
Select the ROS tab.
Make sure to change both NVM locations. Changing only one location will result in Image
Quality problems.
4.
Change the value in locations 720-360 and 720-361 to 1.
General Procedures
GP 2 Increased Imageable Area Setup, GP 4 Intermit-
CAUTION
Entering the Service Diagnostic Mode
CAUTION

GP 4 Intermittent Problem RAP

The purpose of this RAP is to provide guidance for resolving an intermittent problem. This is
not an exact procedure, but a set of recommended actions that use the resources of the ser-
vice manual to help locate the cause of an intermittent problem.
Procedure
1.
Check the service log. Recent service actions may provide information about the problem.
For example, a component that was recently replaced to correct another problem may be
the cause of the new intermittent problem.
2.
Run the machine in a mode that vigorously exercises the function that is suspected. The
machine may fail more frequently or may fail completely under these conditions. Look for
signs of failure or abnormal operation.
An intermittent problem can usually be associated with a RAP, since when it does fail, it
results in a Fail Code, a Jam Code, or some other observable symptom.
3.
Using the RAP that is associated with the symptom of the intermittent problem, examine
all of the components that are referenced in the RAP. Look for:
contamination, such as a feed roller that has a build up of dirt or toner
wear, such as gear teeth that are rounded or have excessive backlash
HFSI, even if they are not near or have not exceeded the SPEC LIFE or COPY
COUNT value
wires chafing against components of the machine, especially against moving com-
ponents
misaligned, misadjusted, or incorrectly installed components
slow or slipping clutches; slow or binding solenoids
damaged components
excessive heat, or symptoms of excessive heat, such as the discoloration of a com-
ponent
loose cables or wires
4.
Using the RAP that is associated with the symptom of the intermittent problem, perform
all of the adjustments for the components or functions that are referenced in the RAP.
Check to ensure that the adjustment CAN BE MADE and that there is an adequate range
of adjustment, and that it can be set to or near the nominal value. Any abnormality that is
observed may be an indication of the cause of the problem. For example, a component
can be adjusted to the nominal value, but it is at the limit of the adjustment range. This is
not normal and may be an indication of the cause of the problem.
5.
Operate all of the components in the appropriate RAP that is associated with the symp-
tom of the intermittent problem with DC330 Component Control (refer to
nent
Control). Observe the components for any symptoms of abnormal operation, such as
a hesitation, or an unusual sound.
6.
Check that the AC and DC power are within specification.
7.
Get technical advice or assistance when it is appropriate. This will depend upon the situa-
tion and the established local procedures.
8.
Examine the components that are not in the RAP, but are associated with the function that
is failing. Refer to the BSDs. Look for:
contamination, such as a feed roller that has a build up of dirt or toner
wear, such as gear teeth that are rounded or have excessive backlash
1/05
6-4
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