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3-170 Troubleshooting Analysis Guide (TAGs)
6
Inspect the following for damage or contamination:
• Lower pick-up roller assembly
• Lower feed roller assembly
• Lower pinch rollers
• Lower cassette.
Are these parts clean and in good working order?
No: Repair or replace the parts as needed, then turn to TAG 002: Check & Problem Resolu-
tion.
Yes: You have not isolated the problem. Return to the beginning of this TAG.
7
Is misregistration the symptom of the problem?
No: Skew problems can only result from mechanical causes. Return to the beginning of this
TAG.
Yes: Continue.
8
Run test prints.
Is the amount of misregistration within + or - 2 lines of the 20-line indicator from the
leading edge of the test print?
No: Continue.
Yes: The registration is within specification. Turn to TAG 002: Check & Problem Resolution.
9
Open the printer’s rear cover and insert an interlock by-pass tool.
• Set the four registration switches on the PCL board to off.
• Run test prints.
• Based on the test prints, increase the registration by changing the switches. Refer to the follow-
ing chart.
Did resetting the switches resolve the problem?
No: Replace the paper timing roller assembly, then turn to TAG 002: Check & Problem Reso-
lution. If this does not resolve the problem, replace the upper paper guide assembly or the
paper timing guide, then turn to TAG 002: Check & Problem Resolution.
Yes: Turn to TAG 002: Check & Problem Resolution.
Table 3-5. PCL Board Switch Settings
Setting
Number
DIP Switches
1234
0 OFF OFF OFF OFF
1 OFF OFF OFF ON
2 OFF OFF ON OFF
3OFFOFFONON
4 OFF ON OFF OFF
5 OFF ON OFF ON
6 OFF ON ON OFF