Canon imageRUNNER ADVANCE C5051 Series Service Manual page 884

■ CLEANING
COPIER > OPTION > CLEANING
OHP-PTH Set of ITB clean transp threshold value
Lv.2 Details To set the number of sheets as the intervals to execute ITB cleaning
when feeding transparency.
When a large number of transparencies is fed, surface active agent
adheres to the ITB, and consequently the transfer efficiency is
lowered. To prevent image failure, a patch is formed on the ITB,
and surface active agent is removed together with the toner every
time after feeding 30 sheets at paper interval and 22 sheets at last
rotation.
As the value is incremented by 1, the number of sheets at paper
interval and last rotation is increased by 1 sheet.
When the value is decreased in the case of using transparency to
which surface active agent is more likely to be adhered, image failure
can be alleviated.
When the value is increased, downtime and toner consumption can
be reduced, but image failure may occur.
Use case When an image failure occurs due to lowering of the transfer
efficiency
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/adj/set range -15 to 15
Unit sheet
Default value 0
Related service mode COPIER> FUNCTION> CLEANING> TBLT-CLN
8
Service Mode > COPIER > OPTION > CLEANING
8 Service Mode > COPIER > OPTION > CLEANING
COPIER > OPTION > CLEANING
ITBB-TMG Set of drum/ITB cleaning band interval
Lv.1 Details To set the intervals at which a band of ATR patches is formed at last
rotation as a measure to prevent flipping of the Drum Cleaner. If
flipping is concerned, reduce the interval.
In addition, use this mode when Bk vertical lines occur in a high
temperature and high humidity environment.
Use case - When flipping of the Drum Cleaner occurs (Setting value 2 is
recommended.)
- When Bk vertical lines occur in a high temperature and high
humidity environment (Setting values 6 to 8 are recommended.)
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/adj/set range 0 to 10 (The intervals at which a band of ATR patches is formed at
last rotation)
0: 140 sheets (Default), 1: Not used, 2: 25 sheets (select this value
when taking a measure against flipping of the Drum Cleaner), 3: 50
sheets, 4: 75 sheets, 5: 100 sheets, 6: 5 sheets (enabled only in
a high temperature and high humidity environment), 7: 10 sheets
(enabled only in a high temperature and high humidity environment),
8: 25 sheets (enabled only in a high temperature and high humidity
environment), 9 to 10: Not used
Unit -
Default value 0
Related service mode The following mode is used to adjust the intervals at which a band of
ATR patches is formed at paper interval.
COPIER> OPTION> IMG-DEV> PCHINT-1
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T-8-52
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