Toshiba e-STUDIO 4500c, Service Manual

Page: 585 / 1120

April, 2007 SERVICE PROGRAM TABLES
5-93
3801 Init TD Sensor Execute TD Sensor Initialization
Do this SP after replacing the developer in one or more of the PCUs when servicing
the machine. This SP:
•
Checks for the presence of developer in the development unit. (This ensures that
the film seal has been removed from the developer pack.)
•
Initializes TD sensor. (Calibrates Vtcnt).
•
Calibrates development gamma and calibrates toner density. Also does the
MUSIC check and correction.
Note: Never do TD sensor initializations SP3801 – 001 to 006 after SP3811 – 001
(Developer Set Up). See also the relating pages/chapters 1-32, ch.3.1.6 and
ch.3.5.7.
001 All Colors (Y, M, C, K) [0~1/1]
002 Col (Y, M, C)
003 K
004 M
005 C
006 Y
3802 TD Sn Init OK? Display Result of TD Sensor Initialization
This SP displays the results of the TD sensor initialization with SP3801 001~006.
The machine returns the status of the previous initialization with numbers, 1 digit for
each PCU. The numbers are read in order as "K, M, C, Y".
Four numbers are used to indicate the status of the execution.
1: OK
(success)
2: Cancelled (door opened, etc.)
4: Not executed (not selected for execution; this is not an error)
9: Vtcnt abnormal. Vtcnt (TD sensor control voltage) could not be adjusted to within
2.5
±
0.2V. The machine issued a TD sensor error for the PCU where there is a
problem (SC372~SC375).
3810 ClngInitSetExe Initial Cleaning After Replacement
These SPs should be executed after replacement of the drum cleaning roller or
cleaning blade.
001 All Colors
002 Col Excludes K (Black)
003 K
004 M
005 C
006 Y Allows adjusment of colors separately.