Ricoh M-G1a - Page 62

62
R
i
c
o
h
C
o
.
L
t
d
.
h
t
t
p
:
/
/
w
w
w
.
r
i
c
o
h
.
c
o
m/
Model: M-G1a/M-G1b/M-G1L/M-G1W/R-
G1
Machine Codes:
J017/J019/J021/J023/J018
Slide 62
 Mechanical arms ("feelers" - attached to bellows on each print head
- one arm per color) are calibrated at first filling for full position.
 Periodically, these feeler positions need to be recalibrated.
 At these times (Air Purge, Ink Filling):
 Ink and air are purged from head tanks
 Air release valve is opened during filling until prescribed time
 Air release valve closes
 Ink pump motors run in reverse (momentarily) to create vacuum in
head tank
 Optimal arm position is set.
» J017/J019/J021/J023 - Note that this operation is performed two times
each occurrence, not four times, as each pair of channels per dual-
channel head (for the two heads) is done together.
» J018 - Note that this operation is performed four times each occurrence,
not eight times, as each pair of tanks per dual-channel head (for the four
heads) is done together.
Print Head Mechanical Feeler Position Calibration
No additional notes.