Xerox 8825 Service Manual page 23

Table 2 Xerographic Module
Nor- Clean the xero- Contamination can cause
mal graphic module. print quality
Call Clean the erase Contaminants can travel
lamp. to the LED
Inspect the photo- scorotrons, which results
receptor for dam- in print quality problems.
age. Fused toner on the bot-
Inspect compo- tom of the module can
nents for vellum cause jams.
contamination. Contamination
Inspect all seals the effectiveness of the
for damage. lamp to discharge the
Inspect the photoreceptor drum.
Cleaner Blade for Contaminants from vel-
damage. lum
- Cleaner failure
- Contaminants to prints.
Vellum contamination will
contaminate and plug the
cleaner auger
ends.
Nor- Check and clean Bent stripper fingers may
mal or replace the cause feed out jams and
Call Stripper Fingers. heat roll damage.
Clean the Media Contaminated or dam-
Guides. aged media guides can
cause
defects.
Nor- Clean/check the Smooth or worn fuser roll
mal Fuser Roll fabric loses ability
Call guide. Replace the media.
Fuser Roll. Contaminated
guide causes too much
resistance
which results in jams/
deletions/wrinkles.
Nor- Check the fuser Too little oil can cause
mal roll for lack of oil. media handling and off-
Call setting print quality prob-
lems.
Nor- Inspect/clean the Contamination can cause
mal thermistor pad fuser heat problems.
Call
8825/8830 Printer
Clean the toner from the housing and
problems. cleaner blade with a vacuum cleaner.
NOTE: Ensure that the vacuum
bar and
cleaner does not contact the edge of
the cleaner blade that touches the
surface of the photoreceptor drum.
Perform the Photoreceptor Cleaning
Enhancement procedure in section 6.
reduces
Use cleaning solvent to remove any
fused toner from the bottom of the
module. Replace the photoreceptor if
damaged.
Clean the erase lamp with a brush or
dry lint free cloth.
Replace any damaged xerographic
module seals.
at the
Replace the damaged or contami-
nated stripper fingers.
print quality
Clean the roll with film remover.
to drive Clean the fabric guide with formula A
and film remover.
fabric Perform diagnostic code 1033 every
time the oiler is removed.
to media
Check remaining fuser web life
[1034] and adjust the web oiler rate
[1032].
If the fuser roll is dry, refer to
10.2.
Clean the thermistor pad with a brush
or dry lint free cloth.
As Check/clean the
Requir photoreceptor.
ed
As Check/clean the
Requir cleaning blade.
ed Replace with the
*Note 3 new photorecep-
tor or as required.
30K ft. Replace the fabric
9Km guide.
30K ft. Clean the inner
9Km xerographic mod-
ule components.
NOTE: 1. Ensure that the vacuum does not contact the edge of the cleaner blade that touches
the surface of the photoreceptor drum.
NOTE: 2. Where possible, dust the drum and the cleaning blade with zinc stearate away from
the xerographic module to prevent the charge scorotron from being contaminated. If the drum
and cleaning blade must be dusted while in the xerographic module, remove the charge
scorotron. The zinc stearate will contaminate the charge scorotron and cause print quality
defects.
NOTE: 3. Install the complete cleaning blade kit when installing a new photoreceptor.
BSD
INTER TASK
VAL
Nor- Clean the lower
mal paper transports,
Call turnaround baffle,
paper feed rolls.
Nor- Clean the under
mal side of the trans-
Call port.
01/02
1-13
Table 2 Xerographic Module
Contamination/wear, Inspect photoreceptor surface for
scratches, or chips can deep scratches, chips or excessive
generate print quality wear. Replace photoreceptor if dam-
problems. aged.
Apply zinc stearate to the cleaning
blade and photoreceptor drum. *Note
2
Clean photoreceptor surface with
Xerox Film Remover if contaminated.
Apply zinc stearate when surface is
dry.
Residual image, streaks, Vacuum clean the cleaning blade.
drum scuffing can occur if *Note 1
the blade is worn or con- Apply zinc stearate to the cleaning
taminated. blade and photoreceptor drum. *Note
2
Replace the blade if damaged.
Jams, deletions, wrinkles. Refer to REP 8.9
If the customer is running Remove the fuser roll and photore-
a high percentage of vel- ceptor to enable access.
lum, outgassing of the NOTE: Use caution not to touch or
vellum contaminates the damage cleaning blade or seals.
cleaner auger and lower Vacuum the Xero Mod and Auger
baffle surface resulting in and then clean all contaminated
poor cleaning and high areas with Film Remover.
dirt contamination.
plugged cleaner auger
Table 3 Media Transport
REASON TASK ENABLER
Contaminates can cause Clean the transport with antistatic
the media to slip resulting fluid and a lint free cloth.
in print quality defects. Clean the feed roller with Formula A.
Reduce the airborne con- Vacuum clean, then wipe down with a
taminants. lint free cloth.
Service Call Procedures
Maintenance Procedures