where:
nMicrocode tolerance (MCT) that is being adjusted
hThe high-order byte of MCT data
lThe low-order byte of MCT data
Purpose:
The microcode tolerance (MCT) information is used to make adjustments to
the printer’s microcode. MCT data is nonvolatile data stored in the printer
EPROM that is specific to a printer. For example, an MCT parameter can
be defined to adjust for mechanical tolerances which cause a print line to
not be centered on a receipt. Another would be for adjusting for the number
of motor steps to the first print position on a document. This data remains
intact until changed by the user.
Remarks:
Table15 lists the MCT values by the parameter (n). The table includes the
default, the minimum, and the maximum values of each MCT.
If you try to set an MCT value out of its defined range, it is set to the
closest limit (the minimum or maximum value) or rejected.
Error Conditions:
EPROM load error
Microcode Tolerance (MCT) Information - Request
RS-232 Syntax:
ESC S nor X'1B;53;n'
where:
nMicrocode tolerance (MCT) information that is being requested
Purpose:
Toenable reading microcode tolerance (MCT) information from EEPROM.
Remarks:
vMCT data is sent over the serial line in status bytes 9 and 10. See
Table15 for the values of parameter n.
vMCT write command values that are out of range cause the command to
be rejected. (See bit 7 of “Status Byte 1”on page 160.)
Table15. MCT Command Definitions
DEC HEX MCT Default Min Max
1 1 DBCS code page
Byte 1: Reserved, set to X'FF'
Byte 2: Matrix for the impact code
page
v0 = 16 x 16 code page
v1=9x19code page
X'FF00' X'FF00' X'FF01'
2 2 Matrix of user-defined thermal code
page 1
Byte 1: Dot row width
Byte 2: Dot row height
X'0A14'
(10x20)
X'0810' X'1020'
(16x32)
updated March 18, 2002
AppendixC. RS-232 Programming Information 123