GE Eagle 1000, Servicing Instructions

Page: 99 / 148

GE Medical Systems EAGLE 1000
Page 99
Information Technologies
Servicing Instructions 227 468 01 Rev. G
4.5.5 Recorder service
Motor adjustment
What to adjust What to mea- How Where to How big and What else to
or to check? sure with? Test mode turn? exact? consider?
Motor speed Check mea- Press Soft- Speed ad- <1 % V = 25 mm/s
surements ofkey Print juster f or
grid printout for a moment R 503 Eagle 1000
with ruler
Heating time adjustment
What to adjust What to mea- How Where to How big and What else to printhead
or to check? sure with? Test mode turn? exact? consider? legend
Heating time Connect oscil- Press Soft- Heating time referred to Adjustment
loscope to key Print adjuster printhead made at
MP 2/1 and for a moment R 504 temperature 25 mm/s.
MP 1/1 (GND) 22 °C: Caution:
printhead
warms up
during
printing
450
µ
s ±1 % ‘R520’
550
µ
s ±1 % ‘R650’
Checking the +22 V supply voltage
What to adjust What to mea- How How big and What else to
or to check? sure with? Test mode exact? consider?
+22 V power Voltmeter B22 V +22 V ±5 % Recorder dis-
supply and GND (C 500) abled
Overtemperature protection
There is a protective circuit which protects the printhead from being overloaded. At a sub-
strate temperature exceeding approx. 58 °C the printhead switches off.