Intermec EasyCoder 501 XP Service Manual page 63

Chapter 8 Print Unit
8.8 Headlift Sensor,
cont.
62
Adjusting the Sensor Arm, cont.
Run this program to assist you in adjusting the headlift sensor
arm:
Error LED on = Printhead open.
Error LED off = Printhead closed.
The correct position is exactly when the Error LED goes out.
You can break the program execution either by pressing <Shift>
+ <Pause> on the printer's keyboard or by transmitting the char-
acter X (uppercase!) from the host.
NEW
10 BREAK 1, 88
20 BREAK 1 ON
30 ON BREAK 1 GOSUB 1000
40 LED 1 OFF
50 WHILE (PRSTAT AND 1) = 0: WEND
60 LED 1 ON
70 WHILE (PRSTAT AND 1) = 1: WEND
80 GOTO 40
1000 BREAK 1 OFF
1010 END
RUN
Sensor Replacement
Before replacing the sensor, check that the sensor arm is properly
adjusted and that the sensor is free from dust, paper shreds, and
other things that can block the light.
Replace the sensor as follows:
• Switch off the power, remove the power cord, and remove the
cover over the electronics compartment.
• Check that the printhead is lowered.
• Remove the #T10 Torx screw that holds the front of the sensor.
• Raise the printhead.
• Remove the #T10 Torx screw that holds the rear of the sensor.
• Pull out the sensor and disconnect its cable from the CPU
board.
• Reassemble in reverse order. The sensor's cable should be con-
nected to P50 (marked "HEADL") on the CPU board.
• Check that the sensor works properly using a PRSTAT state-
ment, see Intemec Fingerprint v7.xx Reference Manual.
Intermec EasyCoder 501 XP – Service Manual Ed. 4