2-4 Service Manual
4036-307, -308
844 .03 Rear scan module lamp
level too low
Rear Mono channel, Rear Color
channels, Rear Red channel,
Rear Green channel, and/or Rear
Blue channel is detected to have
low lamp level.
Replace ADF optical unit
844 .04 Front scan module has
excessive noise
This will manifest itself by
creating a fuzzy image.
Replace flatbed optical unit
844 .05 Rear scan module has
excessive noise
This will manifest itself by
creating a fuzzy image.
Replace ADF optical unit
844 .06 Front scan module has
excessive variability
Replace flatbed optical unit
844 .07 Rear scan module has
excessive variability
Replace ADF optical unit
844 .08 Front scan module banding Replace flatbed optical unit
844 .09 Rear scan module banding Replace ADF optical unit
845 .00 Front scan module cable
failure or SCC card failure
CCD channel failure
Check each channel (mono, R, G,
B) for identical values indicating
bad cable and/or SCC card.
Excessive noise test for the dark
data indicating some sort of CCD
or analog electronics issue on
that channel or channels.
See “845.00 Front scan module
cable failure or SCC card failure
CCD channel failure” on page 4-
19.
845 .01 Rear scan module cable
failure or SCC card failure
CCD channel failure
Check each channel (mono, R, G,
B) for identical values indicating
bad cable and/or SCC card.
Excessive noise test for the dark
data indicating some sort of CCD
or analog electronics issue on
that channel or channels.
See “845.01 Rear scan module
cable failure or SCC card failure
CCD channel failure” on page 4-
19.
845 .02 Cable/SCC Failure Front scan module connector or
cable failure
See “845.02 Cable/SCC failure”
on page 4-20.
845 .03 Cable/SCC Failure Rear scan module connector or
cable failure
See “845.03 Cable/SCC failure”
on page 4-20.
845 .04 Cable Failure The connector cable is defective. Replace PCI Cable
846 .00 Front calibration strip
unusable
See “” on page 4-20.
846 .01 Rear calibration strip
unusable
Replace ADF optical unit
846 .02 Front calibration strip too
far left (The Front
Calibration Strip is placed
too high or too low.)
See “” on page 4-20.
846 .03 Front calibration strip too
far right
See “” on page 4-20.
846 .04 Front calibration strip has
excessive skew
See “” on page 4-20.
846 .05 Front calibration strip has
excessive bow
See
“” on page 4-20.
Error
code
Sub
codes
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