Toshiba e-STUDIO556 Service Manual page 782

Notes:
• LGC-SRAM shown in the screen above is equal to NVRAM on the LGC board.
• If an error occurs during the initialization of NVRAM and it fails, error messages are displayed
on the touch panel.The error messages to be displayed and the corresponding
troubleshooting methods are shown below.
Message
R/W FAILURE
UNDEFINED MODEL
UNDEFINED VERSION
VERIFY ERROR
[C] Adjust image quality
(1) Readjust the auto-toner sensor.
1. Turn the power OFF.
2. Replace the developer material.
3. Perform automatic adjustment of the auto-toner sensor.
Start up with the Adjustment Mode (05), enter [2000] and press the [START] button.
Notes:
• If <05 ADJUSTMENT MODE DATA LIST> data remain while the equipment is operating
normally (e.g. setup, PM or developer material replacement), the auto-toner sensor can be
readjusted by directly entering the adjustment value of "Correction of auto-toner sensor" (05-
2001). In this method, you do not have to replace developer material but this is only possible
if there is no problem with the developer material and the developer unit area.
• Image quality is not guaranteed if "Automatic adjustment of auto-toner sensor" (05-2000) is
performed without replacing the developer material. "Automatic adjustment of auto-toner
sensor" (05-2000) is available only for new developer material.
(2) Perform image dimensional adjustment.
See P.6-10 "6.3.3 Printer related adjustment"and
adjustment" to perform the adjustments correspondingly.
[D] Set line adjustment mode
(1) Start up with the Setting Mode (08).
(2) Initialize the NIC information (08-9083).
(3) Set "0" for "Line adjustment mode" (08-9010).
Note:
"1" is set for the SRAM board supplied as a service part. If this SRAM board is used with the
setting value "1", the number of printouts is not counted.
e-STUDIO556/656/756/856(Ver03)
REPLACEMENT OF PC BOARDS / HDD
Troubleshooting
Check whether NVRAM is installed in the proper direction or any of
the connector pins is broken. Replace NVRAM if there is any
abnormality.
Check the LGC board. Replace it if there is any abnormality.
Recheck the destination for the SYS-SRAM board. Replace the
SYS-SRAM board if there is any abnormality.
Check whether NVRAM is installed in the proper direction or any of
the connector pins is broken. Replace NVRAM if there is any
abnormality.
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P.6-16 "6.3.4 Scanner related
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