EBS Ink-Jet Systems 1500 Series, Руководство пользователя, Страница: 77 / 111

EBS
Ink Jet Systems
EBS-1500
Series Printers User's Manual
Paragraph 4 - Operating the Printer
20060920#3.1
75
4.5.1. Clearing Alarms
CLEAR ALARM key
Fig. 4.5.1.1.
To clear the alarm press the CLR. ALARM key on the terminal panel.
NOTE:
Do not clear any alarm before you have identified what the source of the alarm is.
4.6. Adjusting the Print Rate
The print head is motionless during the printing. Overprints are made on objects that
move in front of the head. The range of print rates varies according to application. Therefore
the printer has been equipped with a feature that enables you to adjust the rate to make clear
and legible overprints in every condition. The printing operation is timed with pulses that are
generated by two sources:
´
a controlled internal generator,
´
an external encoder, which converts rotational speed to pulse frequency.
If you increase or decrease the pulse frequency, you change the print rate.
4.6.1. Internal Generator
The internal generator operates regardless of the rate at which objects travel in front of
the print head. That is why it is used with conveyors whose travel rate is specified and
stable .
The pulse frequency generated by the internal generator (and thereby the print rate) depends
on two print parameters (the
PRINTING PARAMETERS command in the PRINTING menu):
´
The Cnv spd m/min (see section
4.4.3.4 Print Parameters
) parameter adjusts the print
rate (in rows) to the conveyor travel speed (m/min). If the setting of the Cnv spd m/min
parameter does not change and you reduce the travel speed, the density of characters
printed increases.
To set the Cnv spd m/min parameter correctly, measure the travel speed with the service
command CONVEYER MEASUREMENTS - see section
4.4.4.1 Defining Some Print
Parameters with the Conveyor Travel Speed
.
!