Diagnostic information 2-209
7500-432, -632, and -832
Vertical blank lines (white stripes in media transport direction)
Step Check Yes No
1 Check the media condition.
Load new, dry, recommended media.
Re-print the defective image.
Does the error continue?
Go to step 2. Problem solved.
2 Is the media transfer route and the media path clear of
debris?
Go to step 3. Remove debris or
contamination.
3 Check laser beam route.
Check for debris between the transfer roll assembly and
the PC drum.
Check the printhead assembly window for contamination.
Is there any debris in the laser beam route and is the
printhead assembly window free of debris and
contamination?
Go to step 4. Remove debris,
or clean the
printhead
assembly window.
4 Check the printhead assembly installation.
Is the printhead assembly installed properly with four
screws?
Go to step 6. Go to step 5.
5 Check the printhead assembly installation.
Install the printhead assembly properly, and perform a print
test.
Does the error continue?
Go to step 6. Problem solved.
6 Check the toner cartridge.
Install a new toner cartridge.
Re-print the defective image.
Is the image density normal?
Problem solved. Go to step 7.
7 Check the transfer roll assembly.
Remove the transfer roll assembly.
Is the transfer roll assembly rotating, free of contamination
and wear?
Go to step 8. Replace the
transfer roll
assembly.
Leading edge
Trailing edge
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