Diagnostic information 2-215
7500-432, -632, and -832
Horizontal stripes
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 Check the media transfer route.
Check the media route for contamination or obstacles.
Go to step 3. Remove
obstacles or
contamination.
3 Check the toner cartridge.
Install a new toner cartridge.
Re-print the defective image.
Is the image density normal?
Problem solved. Go to step 4.
4 Check the transfer roll assembly.
Remove the transfer roll assembly.
Is the transfer roll assembly free of contamination and
wear?
Go to step 5. Replace the
transfer roll
assembly.
5 Check white-band pitch.
Is the white-band pitch approximately 78 mm (heat roll
circumference)?
Go to step 9 Go to step 6.
6 Check the heat roll and pressure roll.
Remove the fuser unit assembly.
Is there any contamination or crack on the heat roll and/
or pressure roll?
Replace the
fuser unit
assembly.
Go to step 7.
7 Check the image development process.
Perform a print test. Turn off the printer power while
printing.
Carefully remove the toner cartridge, and check the
toner image formed on the drum before the transfer roll
assembly.
Is the image completely formed on the drum, and is the
area clear, black, and easily read?
Go to step 8. Go to step 9.
Leading edge
Trailing edge
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