Canon iPF9000S Troubleshooting Manual page 106

17. Imaging Failures ③
undersharp images
C1 Carriage operation (belt tension)
C2 Electrical (carriage encoder, flexible cable)
C3 Paper (paper settings, paper difficult to dry, invalid paper information, rubbing, loose paper)
C5 Resolution (data interpretation, applications, RIP, driver setting)
C6 Printhead
C7 Adjustment system (head height, head adjustment, inclination adjustment, suction)
Cause
C1 to C7 Check images.
Check that the paper settings are valid (an invalid paper setting result in an ink
C3
overflow).
Check to see if any error has been indicated by running Nozzle Check Print in
C2, C6
User mode.
Check the firmware version (the environmental sensor settings are varied upon
Others
recovery from sleep mode).
Application-dependent?
C5
C3 Paper, such as tracing paper or films, may be difficult to dry.
Correct adjustments may not have been achieved due to particular
C7
environmental conditions during head adjustment work.
The carriage inclination adjustment lever is not set at the correct position (iPF700
C7
Series).
If this failure has occurred concurrently with a phenomenon of too slow printing,
Others
there may be a data error in Media Configuration Tool (MCT).
Flow 1
Print start position varied from
path to path
Paper feed direction varied
from path to path
Vertical line
Normal image
Blurred, ghost, spread, shaken or
Point to check
Is the carriage belt tension
normal?
Is paper ejected properly?
Yes
Horizontal line
Chapter 3 More Sophisticated Fault Isolation Tasks
T01
Faulty carriage encoder
Yes
Damaged idle pulley
Replace the carriage belt (unit)
Remove the cause of the failure
No
Paper elevated while printing
3-30
Action
Flow 1
Explain.
T03 (P4-3)
Upgrade.
Flow 2
Explain.
T15 (P4-20)
T15 (P4-20)
Update MCT.
(P5-11)
Replace
Increase suction force
Clean the platen
Replace the suction fan