Honeywell Chadwick-Helmuth 8500C Maintenance Manual page 80

Chapter 5 - Maintenance And Repair
Problem
8500C/C+ does not recognize 8520C. (cont'd.)
Printer does not print.
5-36 Chadwick-Helmuth A Business Unit of Honeywell International, Inc.
Table 5-8. Troubleshooting Guide
8500C/C+ Balancer/Analyzer
5. Check A1P5 serial connector on 8500C/C+
6. 8520C controller board is most likely at
7. 8500C/C+ digital board is next most likely
1. Cycle power on 8500C/C+.
2. Check whether paper roll is empty.
3. Paper may have pulled away from sensor.
4. Remove tear bar (Figure 5-18, (11) & (27))
5. Press STATUS and verify that screen
6. Check 8500C/C+ harness assembly
7. Printer assembly is most likely at fault.
Solution
harness assembly (Figure 5-19).
fault. Replace 8520C controller board
(Figure 5-20, A1).
at fault. Replace 8500C/C+ digital board
(Figure 5-17, A1).
NOTE: This erases any print jobs
waiting to be printed.
Tighten paper roll and reinstall.
and check for paper debris that may be
jamming the gears. Check that gears are
able to turn; if they cannot, remove thin
metal strip on printer and check behind that
for debris.
display indicates print jobs are waiting to be
printed.
(Figure 5-19) for shorted or open
connections which can be caused by loose
or pinched wires, unplugged connectors, or
worn-through insulation.
Replace printer assembly (Figure 5-18
(13)).