5-34 Phaser 7500 Printer Service Manual
Print-Quality Troubleshooting
IQ-8 Edge-less Image (No Margins)
An image is printed on the edges, usually only a single color.
Cause
• Poor connection of Flat Cable between the MCU and the LED Print Head.
Initial Actions
• Check the paper transfer path.
• Ensure there are no debris on the transfer path.
If this problem does not occur in Engine Test Prints from Diagnostics.
Therefore, do not replace the LPH without consideration.
Troubleshooting Reference
Applicable Parts Example Print
â– LED Print Head, PL2.1.2
â– Flat Cable, PL2.2.1
â– MCU PWB, PL18.3.6
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Verify that the problem does not
occur on the Engine Test Prints from
within Diagnostics.
Does the error still occur?
Replace the
LED Print Head
(REP 2.1,
page 8-18).
Go to step 2.
Check
connection of
Cables and
check the FFC
Cable for
scratches and
damages.
Go to step 2.
2 Does the error still occur? Replace the
MCU PWB
(REP 18.12,
page 8-202).
Replace the
FFC Cable.