Canon BJC 6000 Service Manual - Page 97

Purge Unit, Purge Unit, 3.1 Function of the purge unit - help

Get Canon BJC 6000 - Color Inkjet Printer PDF manuals and user guides View all Canon BJC 6000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 97 highlights

BJC-6000 Part 4: Technical Reference 3.3 Purge Unit 3.3.1 Function of the purge unit The purge unit keeps the BJ cartridge nozzles in good working condition to ensure high printing quality. The unit is designed to provide both capping and cleaning functions. a) Capping The capping function presses the purge unit's cap against the print head face to prevent the nozzles from drying and becoming contaminated. During capping, a cam is actuated to lock the carriage in place. During printing, capping starts 30 seconds or so after data stops. When printing is not performed, capping takes place after a certain period of time (20 minutes in paper feeding mode, or 30 seconds in other conditions) has elapsed since the last data was received, or when the POWER button is used to switch the printer off. b) Cleaning The cleaning function includes the wiping action to wipe paper fibers or waste ink off the head face plate, and the suction action to suck out ink from the head to refresh the insides of nozzles with new ink, and the maintenance jet action to discharge the ink from the nozzles into the maintenance jet splash guard for removing bubbles from the head or dust around the outlet. The cleaning mechanism becomes activated in the following cases to help maintain high quality printing. Printer Status Reference Ink Consumption (mg) Black Color Photo Power ON Initial power on (1 time only) 0.49 0.75 0.75 Switched on for the 1st time since connecting to AC (capped) 0.19 0.27 0.27 Switched on for the 1st time since connecting to AC (not capped) 0.34 0.53 0.53 72 hours or more elapsed since previous cleaning 0.19 0.27 0.27 Cleaning 0.19 0.27 0.27 Refreshing 0.34 0.53 0.53 Changing BJ cartridge/Ink tank 0.34 0.53 0.53 72 hours or more elapsed since previous cleaning 0.19 0.27 0.27 Before printing banner paper 0.19 0.27 0.27 (Specified number or more of dots or time elapsed since previous cleaning) Maintenance Jet Splash Guard Purge Unit Figure 4-19 Purge Unit 4-25

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
4-25
BJC-6000
Part 4: Technical Reference
3.3
Purge Unit
3.3.1 Function of the purge unit
The purge unit keeps the BJ cartridge nozzles in good working condition to ensure
high printing quality.
The unit is designed to provide both capping and cleaning
functions.
a) Capping
The capping function presses the purge unit's cap against the print head face to
prevent the nozzles from drying and becoming contaminated.
During capping, a
cam is actuated to lock the carriage in place.
During printing, capping starts 30
seconds or so after data stops.
When printing is not performed, capping takes place
after a certain period of time (20 minutes in paper feeding mode, or 30 seconds in
other conditions) has elapsed since the last data was received, or when the
POWER
button
is used to switch the printer off.
b) Cleaning
The cleaning function includes the wiping action to wipe paper fibers or waste ink off
the head face plate, and the suction action to suck out ink from the head to refresh
the insides of nozzles with new ink, and the maintenance jet action to discharge the
ink from the nozzles into the maintenance jet splash guard for removing bubbles
from the head or dust around the outlet.
The cleaning mechanism becomes
activated in the following cases to help maintain high quality printing.
Printer Status
Reference Ink Consumption (mg)
Black
Color
Photo
Power ON
Initial power on (1 time only)
0.49
0.75
0.75
Switched on for the 1st time since connecting to AC (capped)
0.19
0.27
0.27
Switched on for the 1st time since connecting to AC (not capped)
0.34
0.53
0.53
72 hours or more elapsed since previous cleaning
0.19
0.27
0.27
Cleaning
0.19
0.27
0.27
Refreshing
0.34
0.53
0.53
Changing BJ cartridge/Ink tank
0.34
0.53
0.53
72 hours or more elapsed since previous cleaning
0.19
0.27
0.27
Before printing banner paper
0.19
0.27
0.27
(Specified number or more of dots or time elapsed since
previous cleaning)
Maintenance Jet Splash Guard
Purge Unit
Figure 4-19 Purge Unit