Service manual

Page 4-1
PN 9001080
Rev. A
SATO M-8485Se Standard Print Engine
Service Manual
"
Section
Electrical Checks and Adjustments
4.1 Overview
This chapter describes how to check the M-8485Se printer voltage levels and adjust
threshold sensor voltages.
The power supply converts 125 VAC into regulated DC voltages. The printer uses: +5V
and +24V. These DC voltages are not adjustable, however you can measure these DC
voltages at test points located on the Service Board. Section 4-2 contains procedures for
measuring DC voltage levels.
You can adjust threshold voltage levels for label sensors. These adjustments are made to
allow for variations in the characteristics of the labels used with the printer. If you cannot
calibrate the label sensor voltage level within the specified voltage range, you should
reposition the label sensor by following the adjustment procedures included in this
section. After completing the label sensor adjustment procedures, perform the label
sensor voltage level adjustment procedure.
You can check or adjust:
 DC Power Voltage
 Label Pitch Sensor
 Ribbon Sensor
 Pitch Offset
 Label Positions
 Print Darkness
 Calendar Clock Setting
Checks and adjustments in this section require standard metric tools.
Other equipment is listed where needed.