SATO S84 ex - Adjusting the Print Position

4 Checking and Performing Printer Adjustments
45
S84-ex/S86-ex Service Manual
4 Set the digital multimeter to direct current, voltage mode.
5 Connect the power cord to an AC outlet.
6 Set the power switch of the printer to the “I” position.
7 When using the test module, set the test module dial as specified below [ ]. Connect
the positive probe and negative probe of the multimeter to the test module.
If test module is not available, connect positive probe of the multimeter to the terminal
pin (as indicated below) and negative probe to pin 1A (GND) of the CN10 connector as
indicated below.
• Connect positive probe to pin 3A, negative probe to pin 1A, then measure at +5.0 V
[Test module dial setting: 0].
• Connect positive probe to pin 4A, negative probe to pin 1A, then measure at +1.8 V
[Test module dial setting: 1].
• Connect positive probe to pin 5A, negative probe to pin 1A, then measure at +3.3 V
[Test module dial setting: 2].
• Connect positive probe to pin 6A, negative probe to pin 1A, then measure at +24.0 V
[Test module dial setting: 3].
8 Power off the printer.
Criteria
Diagnosis and remedy
• Replace the power supply unit if the supply voltage of +24.0 V / +5.0 V does not meet the criteria.
Refer to Section 5.7 Replacing the Power Supply Unit for details.
• Replace the main (CONT) PCB if the supply voltage of +3.3 V/ +1.8 V does not meet the criteria.
Refer to Section 5.5 Replacing the Main (CONT) PCB for details.
Table of Normal Performance Values:
+5.0 V +4.8 V to +5.2 V (3A - 1A)
+1.8 V +1.7 V to +1.9 V (4A - 1A)
+3.3 V +3.1 V to +3.5 V (5A - 1A)
+24.0 V +22.8 V to +25.2 V (6A - 1A)