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Book Quality
Are there curved dirty marks on either the
front or rear cover of the book?
No
¦
¦
¦
¦
V
Print a sample to the printer stacker. Is the printer the cause of the dirty marks?
No
¦
V
Call your service engineer.
Damaged book
[28] Normal witness mark (A) left by the form clamp during spine forming
Are there damage marks on the cover of the book near to the spine, from the form clamp, that
are worse than the normal witness mark?
No
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
V
Is the spine torn or creased?
No
¦
¦
V
74
Chapter 6 - Error Conditions, Problems and Solutions
Curved marks on the book
Yes
Clean the trimmings removal fingers (see
Clean the Trimmings Removal Fingers on
page
Yes
Printer service is required.
A
Yes
Run a standard job using paper of 80 g/m² (20 lb bond).
Does the problem persist?
Yes
¦
¦
¦
¦
V
Call your service engineer.
Yes
The spine is over-formed (see
page
66).
115).
No
The problem is caused by the
cover material or the finish.
Change the cover material.
Spine form problems on
4
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