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RAP 77 Horizontal (Scan) Streaks
Figure 25 Horizontal (Scan) Streaks
Table 108 Horizontal (Scan) Streaks Troubleshooting Procedure
Step Actions and Questions
1
INITIAL ACTIONS
Check that the paper supply is dry and fresh.
I
Inspect the printer paper path for items such as
I
staples, paper clips, paper scraps and/or debris.
Check the installation of the Print Cartridge.
I
Check that the Print Cartridge contact points are
I
clean.
PRINT ENGINE CONTROLLER TEST PRINTS
2
1. Enter Diagnostics mode.
2. From the Main Menu, select Test Print / Print Pattern
/ press [4] to start.
3. After approximately 5 prints have run, press [0] to
stop.
Do the test prints have horizontal streaks?
3
SYSTEM CONTROLLER TEST PRINT
1. Switch printer power OFF to exit Diagnostics mode.
2. Switch printer power ON to enter Ready mode.
3. From the Ready menu, press [1] or [5] to scroll to Test
Print, then press [2] or [6] to scroll to Config Sheet.
4. Press [4] to print a Configuration Sheet.
Does the Configuration Sheet exhibit horizontal
streaks?
4
PRINT CARTRIDGE REPLACEMENT
1. Install a new Print Cartridge.
2. Run a Test Print.
Are the horizontal streaks gone?
194
There are black lines running horizontally across the
page (at a right angle to the direction of paper
travel).
Phaser 5400 Laser Printer Service Guide
Yes
No
Go to Step 4.
Go to Step 3.
Remove and
The problem
reseat the
appears to
System
be with the
Controller
host
Board. If the
computer or
problem
the cables. If
persists,
the problem
replace the
persists,
System
replace the
Controller
System
Board
Controller
[RRP 8.1,
Board
page
305].
[RRP 8.1,
page
Problem
Go to Step 5.
solved.
305].
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