Communications Tests - GE MAC 2000 Service Manual

Steps for Writer Test Failure (cont'd.)

Communications Tests

There are several different communications tests that you may need to perform:
• RS232 port
• LAN option (Network)
2053535-003C
Observed Failure
Faded prints
Incorrect print speed or motor
jerk
Writer paper does not move
Paper moves but lines do not
print or
Printer internal error message
MAC™ 2000 ECG Analysis System
Remedy
Faulty printhead
Clean the printhead.
See "Cleaning the Printhead" on page
Faulty roller
Replace the roller in the printer door assembly.
See "Printer Door" on page
Printhead pressure problem
Replace the springs and printhead holder.
See "Printhead" on page
Faulty stepper motor.
Replace the roller in the printer door assembly.
See "Printer Door" on page
Faulty PWA
Replace the main PWA.
Refer to "PWA" on page 120.
Faulty stepper motor
Replace the roller in the printer door assembly.
Refer to "Printer Door" on page
Faulty printer assembly
Replace the printer assembly.
Refer to "Printer Module Assembly" on page
Faulty PWA
Replace the main PWA.
Refer to "PWA" on page 120.
Faulty cables in printer assembly.
1. Check for proper cable assembly between the
printer and PWA.
2. Replace the printer assembly.
See "Printer Module Assembly" on page
Faulty printhead.
Replace the printhead.
Refer to "Printhead" on page
Service Setup
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