192277 - Micron Technical Reference Volume 3 - 第170页
PASTE ROLL HEIGHT MONITOR SAFETY INFORMATION 30.2 Technical Reference Manual Chapter Issue 3, Aug 14 In addition, the following general safe ty labels are presented throughout this chapter . CAUTION RADIA TION. RISK OF I…
PASTE ROLL HEIGHT MONITOR
SAFETY INFORMATION
Chapter Issue 3, Aug 14 Technical Reference Manual 30.1
CHAPTER 30 PASTE ROLL HEIGHT MONITOR
SAFETY INFORMATION
The Paste Roll Height Monitor uses a class 2 laser to detect the height of the
paste roll.
Warning and
Caution labels
Warning labels are located on the sender leg (lhs) as shown:
The labels include:
• The safety warning label; radiation (Laser light source present)
• The manufacturer’s label; date and place of manufacture and the applica-
ble safety standard
• Caution notice; specific safety instruction - do not stare into light source
Manufacturer: DEK, 11 Albany Road, Weymouth, Dorset, DT4 9TH
Country of Manufacture: Germany
Complies with 21CFR1040 with deviations pursuant to Laser Notice 50
Manufacture Date: Month: Year:
DIODE LASER, MAX OUTPUT 1mW
CLASS II LASER, WAVELENGTH 635 +/- 10Nm
FDA Regulation “21 CFR Parts 1040.10 and 1040.11"
Caution Notice
Manufacturer’s Label
Safety
Warning
Label
CAUTION
LASER RADIATION,DO NOT STARE INTO BEAM
PASTE ROLL HEIGHT MONITOR
SAFETY INFORMATION
30.2 Technical Reference Manual Chapter Issue 3, Aug 14
In addition, the following general safety labels are presented throughout this
chapter.
CAUTION
RADIATION. RISK OF INJURY TO THE EYES DUE TO LASER LIGHT BEING
PRESENT IN THE VICINITY OF THE LABEL. DO NOT LOOK AT THE LIGHT
SOURCE OR REFLECTIONS FROM A SURFACE.
CAUTION
EQUIPMENT SERVICING. THE LASER DOES NOT CONTAIN USER
SERVICEABLE PARTS. OPENING THE UNIT COULD CAUSE MIS-ALIGNMENT OF
THE LASER, THIS MAY MAKE THE EQUIPMENT DANGEROUS TO OPERATE.
CAUTION
LASER CONTROLS AND ADJUSTMENTS. USE OF CONTROLS OR
ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
PASTE ROLL HEIGHT MONITOR
MODULE OVERVIEW
Chapter Issue 3, Aug 14 Technical Reference Manual 30.3
MODULE OVERVIEW
Purpose The optional Roll Height Monitor detects the height of the roll of the print
medium, if insufficient height of the print medium roll is sensed an automatic
paste dispense operation is initialized.
Elements The Roll Height Monitor consists of the following:
• Roll Height Monitor Assembly
• Voltage Regulator
Operation The Roll Height Monitor assembly is fitted to the machine replacing the front
squeegee ‘I’ bar mount. The front squeegee is fitted to the assembly in the same
way as it fits the squeegee ‘I’ bar mount. The laser light source is fitted to the
left hand leg of the assembly and the light receiver is fitted to the right hand leg.
The light source and receiver are positioned such that the line of sight between
them is in front and between 10mm - 16mm above the tip of the squeegee. As
the machine performs a print stroke to the rear, the height of the print medium
roll in front of the squeegee is monitored between 50% and 90% of the print
stroke. If the receiver acquires light from the light source a paste dispense
operation is initialized and an entry is written to the event log file. If the entry in
the event log equals or exceeds three, the tricoloured beacon displays red and
an error message ‘Insufficient Print Medium Has Been Dispensed.’ The
option to replenish the paste dispenser is given.