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REV.-A
AD=xxxx BK=OO DT=xx
AD : read address
BK : bank number (In this mode, BK ranges from 00 to 3Fh)
DT : read data
06: CG1/13B ROM check
Use this mode to check the CG ROM (IC 13B).
When this is selected, a menu is displayed for selecting the CGROM capacity as follows;
Select CG ROM size
FF:up LF:down L/E:set
CG ROM size= 1M bit
Switch explanation.
Select CGROM size (256K, 1M,2MAM bit)
Select the CGROM size (256K,1 M,2MAM) by pressing 'FF' or 'LF', and press 'LIE' to start the check.
The address and data read from the CGROM are displayed on the LCD.
When the checksum is displayed at the end of the check, compare it with the correct value.
To exit this mode, press the ON-LINE switch.
AD=xxxx BK=OO DT=xx
AD : read address
BK : bank number (In this mode, BK ranges from 40H to 7FH)
DT : read data
07: Case open sensor
Select this mode to check the case open sensor. The state of the case open sensor is displayed on the
LCD panel. Check case open sensor by operating it manually (i.e. open and close the printer cover ).
To exit this mode, press the ON-LINE switch.
08: HP sensor
Select this mode to check the home position sensor. The state of the home position sensor is displayed
on the LCD panel. Check the home position sensor by operating it manually (i.e. move the carriage in
front of the home position sensor).
To exit this mode, press the ON-LINE switch.
If a problem can not be corrected by replacing the home position sensor, replace IC4B (G.A.).
5-17
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