updated March 18, 2002

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:

Table 15 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 n or X'1B;53;n'

where:

nMicrocode tolerance (MCT) information that is being requested

Purpose:

To enable reading microcode tolerance (MCT) information from EEPROM.

Remarks:

vMCT data is sent over the serial line in status bytes 9 and 10. See Table 15 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.)

Table 15. MCT Command Definitions

DEC

HEX

MCT

Default

Min

Max

 

 

 

 

 

 

1

1

DBCS code page

X'FF00'

X'FF00'

X'FF01'

 

 

Byte 1: Reserved, set to X'FF'

 

 

 

 

 

Byte 2: Matrix for the impact code

 

 

 

 

 

page

 

 

 

 

 

v 0 = 16 x 16 code page

 

 

 

 

 

v 1 = 9 x 19 code page

 

 

 

 

 

 

 

 

 

2

2

Matrix of user-defined thermal code

X'0A14'

X'0810'

X'1020'

 

 

page 1

(10x20)

 

(16x32)

 

 

Byte 1: Dot row width

 

 

 

 

 

 

 

 

Byte 2: Dot row height

 

 

 

 

 

 

 

 

 

Appendix C. RS-232 Programming Information 123

Page 146 Page 148
Page 147
Image 147
IBM TG5, TM7, TI5, TF7 manual Microcode Tolerance MCT Information Request, Default Min Max
Page 146 Page 148

TI5, TG5, TM7, TF7 specifications

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