Canon imageRUNNER ADVANCE C350 series Service Manual page 868

COPIER> ADJUST> HV-TR
2TR-TH-2 Sec trn ATVC ctrl ppr allot V: thin 2nd
Lv.1 Details To adjust the paper allotted voltage applied to the 2nd side of thin
paper at secondary transfer ATVC control.
When mottled image occurs, increase the value if it is due to
insufficient secondary transfer current and decrease the value if it is
due to overcurrent.
Use case When adjusting the secondary transfer bias individually according to
paper type and 1st/2nd side
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Use this item only when an image failure occurs.
Display/adj/set range -128 to 127
Unit 30 V
Default value 0
T2TR-TH Adj of leading edge weak bias:thin paper
Lv.2 Details To adjust the offset of the leading edge weak bias for thin paper.
Decrease the value if white spots occur.
Increase the value if density on the leading edge of paper is low
(transfer is weak).
Use case When an image failure (white spots at the leading edge) occurs
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Use this item only when an image failure occurs.
Display/adj/set range -128 to 127
Unit 30 V
Default value 0
8
Service Mode > COPIER > ADJUST > FEED-ADJ
T-8-24
8 Service Mode > COPIER > ADJUST > FEED-ADJ
■ FEED-ADJ
COPIER> ADJUST> FEED-ADJ
REGIST Registration start timing adj: 1/1 speed
Lv.1 Details To adjust the timing to turn ON the Registration Motor at 1/1 speed.
As the value is incremented by 1, the margin on the leading edge of
paper is increased by 0.1 mm.
+: Top margin becomes larger. (An image moves downward.)
-: Top margin becomes smaller. (An image moves upward.)
When replacing the DC Controller PCB/clearing RAM data, enter the
value of service label.
Use case When replacing the DC Controller PCB/clearing RAM data
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Display/adj/set range -50 to 50
Unit 0.1 mm
Default value 0
ADJ-C1 Cassette1 write start pstn in horz scan
Lv.1 Details To adjust the image write start position in the horizontal scanning
direction when feeding paper from the Cassette 1.
As the value is incremented by 1, the margin on the left edge of
paper is increased by 0.1 mm.
+: Left margin becomes larger (An image moves to the right.)
-: Left margin becomes smaller (An image moves to the left.)
When replacing the Reader Controller PCB/clearing RAM data, enter
the value of service label.
Use case When replacing the DC Controller PCB/clearing RAM data
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Display/adj/set range -100 to 100
Unit 0.1 mm
Default value 0
ADJ-C2 Cassette2 write start pstn in horz scan
Lv.1 Details To adjust the image write start position in the horizontal scanning
direction when feeding paper from the Cassette 2.
As the value is incremented by 1, the margin on the left edge of
paper is increased by 0.1 mm.
+: Left margin becomes larger (An image moves to the right.)
-: Left margin becomes smaller (An image moves to the left.)
When replacing the Reader Controller PCB/clearing RAM data, enter
the value of service label.
Use case When replacing the DC Controller PCB/clearing RAM data
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Display/adj/set range -100 to 100
Unit 0.1 mm
Default value 0
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