Extended System-Level Command Functions 
 
 
 
 
106  Class Series 2 Programmer’s Manual 
 
STX KH   Dot Check  (H-Class & M-Class Mark II only) 
  
This command specifies dot check operations for the printhead elements.  
 
Syntax: 
<STX>KHx<CR>  
 
Where: 
x 
-  Specifies the operation, where: 
 
  P = Performs dot check; 
  A = Returns the most recent dot check and dot 
  resistance results; and, 
  B = Returns the most recent dot check failed dot 
 results. 
 
Sample: 
<STX>KHP<CR> 
 
The sample above performs dot check with DOTCHECK and a 
progress bar displayed. 
 
Sample: 
<STX>KHA<CR> 
 
The sample above returns results from the last dot check for 
every element and its resistance up to 1350 ohms [with out of 
range (bad or suspect) values indicates as ******], the number 
of dots tested, the total number of bad or suspect dots detected 
and, the minimum, maximum, and average resistance 
and variance: 
 
 
DOTCHECK RESULTS 
 
DOTS TESTED GOOD 830 OF 832 
DOT OHMS 
0  1148 
1  1148 
2  1140 
. 
. 
. 
142  1199 
143 ***** 
144 ***** 
145  1050 
. 
. 
. 
 830  1116 
 831  1116 
 832  1116 
 
 TOTAL BAD DOTS:  2 
 
 
 MIN  MAX AVG VAR 
 921 1640 1125 719