7.4.11. MIO video I/O port control; MIO video I/O port control ; EscCR!12340M (27)(13)(33)(49)(50)(51)(52)(48)(77) - Page 127

CHAPTER 2 PCL - 107 

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If the key is [RENAME], this command allows the printer to change the name field of the AppleTalk name 
binding protocol. 
<ESC>&b#WRENAME<sp>printername 
printername should be specified with 1 to 31 characters. 
The characters $00 to $FF (except for $00, @, :, *, =, $C5) can be used for the printername. 
$00 is used as the terminator. 
If invalid characters are used,  this command is ignored.  

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If the [key] is set to [JOB], this command changes the current job name. 
<ESC>&b#WJOB<sp>jobname 
All characters from $00 to $FF can be used for the jobname. 
jobname can have a maximum of 127 characters.  

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If the [key] is set to [TYPE],  this command allows the printer to change the type field of the AppleTalk 
name binding protocol. 
<ESC>&b#WTYPE<sp>devicetype 

devicetype should be specified with 1 to 31 characters. 
 The characters $00 to $FF (except for $00, @, :, *, =, $C5) can be used for the devicetype. 
 $00 is used as the terminator. 
If invalid characters are used,  this command is ignored.  

7.4.11.

MIO video I/O port control  

The HL-1660e and 2060 printers have only the "VSREQ" signal for vertical synchronization that can be sent to 
the MIO port.  This causes a short delay to the actual printing start after sending the VSREQ signal if the video 
controller is processing an interrupt.  This delay causes an incorrect vertical printing position.  To avoid the 
problem,  the following command is useful.   

EscCR!12340M (27)(13)(33)(49)(50)(51)(52)(48)(77) 

<1Bh><0Dh><21h><31h><32h><33h><34h><30h><4Dh> 

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Laser diode video interface port of  the MIO port is closed. 
 

EscCR!12341M (27)(13)(33)(49)(50)(51)(52)(49)(77) 
   <1Bh><0Dh><21h><31h><32h><33h><34h><31h><4Dh> 

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Laser diode video interface port of the MIO port is opened. 

 
EscCR!12342M (27)(13)(33)(49)(50)(51)(52)(50)(77) 
   <1Bh><0Dh><21h><31h><32h><33h><34h><32h><4Dh> 

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Laser diode video interface port of the  MIO port is opened and the print start command is sent to the printer 
engine immediately after sending the VSREQ signal.