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Canon imagePRESS C800 imagePRESS C800 Series Operation Guide - Page 175

Perform a shading correction, Tools, Procedure

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Perform a shading correction Perform a shading correction In most cases, an automatic gradation adjustment is sufficient to deliver the required color quality. However, in the following situations it is necessary to perform also the shading correction: • When the printed output shows uneven color densities in the color panes. • After the installation of the print system. • When your service representative replaces system parts. [99] Shading correction For more information, see: About calibration on page 170 Calibrate the printer on page 173 Calibrate the media family on page 177 Tools Eye-One spectrophotometer. Procedure 1. Perform a printer calibration. Calibrate the printer on page 173 (See ) 2. Connect the Eye-One spectrophotometer to the USB port in the control panel. 3. Touch [System] -> [Color adjustment] -> [Printer calibration details]. 4. Select [Shading correction]. 5. Touch [Start printer calibration]. 6. Follow the instructions on the control panel. imagePRESS C800 Series Chapter 9 - Keep the color quality high 175

Section	Page
Contents	3
Chapter 1 Preface	9
Disclaimers	10
Trademarks	11
Notes for the reader	13
Installation precautions	14
Handling precautions	18
Information in this operation guide	20
Chapter 2 Explore the print system	21
What can this print system do for you?	22
What output can you create	23
Media for your output	23
Finishing for your output	25
Color reproduction for your output	28
PRISMAsync operating concept	30
PRISMAsync workflows	30
Task-based workflow	31
Media-based workflow	32
Main hardware parts	33
Control panel	36
Paper Input	38
Paper module	38
Bulk paper module	39
Inserter	40
Automatic document feeder	41
Special feeder	42
Finishing and delivery	43
Professional stacker / stapler	43
Standard stacker / stapler	45
Professional puncher	46
Folder	47
Output tray	48
Chapter 3 Start the print system	49
Use the energy save modes	50
Turn on the print system	51
Restart the print system	52
Turn off the print system	53
Chapter 4 Adjust the control panel	55
Change the system language	56
Change or disable the warning time	57
Use of shorter job names	58
Adjust the readability of the control panel	59
Use the remote monitor	60
Chapter 5 Prepare the system	61
Add media to the media catalog	62
Choose a workflow profile	64
Set up automated workflows	67
Set up hotfolders	69
Select an accounting mode	70
Chapter 6 Prepare the jobs	73
Document printing workflow	74
Transaction printing workflow	75
Prepare print jobs	78
Prepare print jobs with the printer driver	78
Prepare print jobs with PRISMAprepare	80
Drag & drop print files on hotfolders	82
Print a file from a USB drive	83
Work with variable data in document printing mode	84
Prepare copy and scan jobs	85
Copy jobs	85
Scan jobs	87
Use the automatic document feeder to copy or scan	89
Use the glass plate to copy or scan	91
Make a copy	93
Make a scan	94
Use templates for recurring jobs	96
Copy subsets (combined copying)	97
Scan subsets (combined scanning)	98
Chapter 7 Plan the jobs	99
Use the DocBox	100
DocBox	100
Change a DocBox job	101
Combine DocBox jobs	102
Lock DocBox job settings	103
Print DocBox jobs	104
Load and assign media	105
Add temporary media to the media catalog	105
Assign media to a paper tray	106
Manage the jobs in the queue	108
Job management in the queues	108
View the jobs in the queues	111
Bundle jobs	112
Add extra sheets to a job	114
Move a scheduled job to the list of waiting jobs	115
Send a job to another printer	116
Remove print jobs	117
Convert a job to a variable data job	118
Chapter 8 Print the jobs	119
Proofing	120
Check first set	120
Make a proof	121
Print a job ticket	122
Make intermediate check prints	123
Printing	124
Change job settings	124
Use page programming	125
Print a waiting job	127
Print a scheduled job immediately	128
Reprint a job	129
Print variable data jobs	130
Stop printing	131
Print in transaction printing mode	132
Keep the system printing	133
System monitoring	133
Schedule	135
Load media for the scheduled jobs	138
Remove printed output from the stacker/stapler	140
Store the printed output	143
Handle media	144
Check and prepare media before loading	144
Check and prepare envelopes before loading	146
Check and prepare transparencies before loading	148
Load media into the internal paper trays	149
Load media into the paper module	151
Load media into the bulk paper module	155
Load media into the special feeder	159
Load media into the inserter	161
Load envelopes into the internal paper trays	163
Load tab paper into the internal paper trays	166
Chapter 9 Keep the color quality high	169
About calibration	170
Calibrate the printer	173
Perform a shading correction	175
Calibrate the media family	177
Chapter 10 Maintain the print system	179
System configuration and maintenance	180
Refill toner and staples	183
Consumables	183
Check the filling level of the toner cartridge	187
Replace a toner cartridge	188
Check the filling level of the waste toner container	191
Replace the waste toner container	192
Check the filling level of the staple cartridge	195
Replace in the professional stacker / stapler the staple cartridge in the staple unit	196
Replace in the professional stacker / stapler the staple cartridge in the saddle-stitch unit	198
Replace in the standard stacker / stapler the staple cartridge in the staple unit	201
Replace in the standard stacker /stapler the staple cartridge in the saddle-stitch unit	204
Remove staple and punch waste	206
Remove the staple waste	206
Remove in the professional stacker /stapler the punch waste	208
Remove in the standard stacker / stapler the punch waste	210
Keep the print system clean	211
Cleaning tasks and procedures	211
Clean the control panel	212
Clean the glass plate area	213
Clean the automatic document feeder scanning area	214
Clean the scanning sensors	216
Clean the automatic document feeder rollers	217
Clean the inside of the print module	218
Clean the corona assembly wires	219
Clean the main unit rollers	220
Clean the fixing pressure belt	221
Refresh the fixing belt	222
Maintain the print module	223
Access the print module parts	223
Perform maintenance in the print module	225
Enable Remote Service	226
Install system software	227
Read the counters	228
Chapter 11 Help	229
Problem Solving	230
Optimize the scan quality of the print system	232
Adjust the image registration on media	233
About the image registration on media	233
Correct curled output media	234
Perform a media registration	235
Correct skewed and rotated images	237
Adjust the color quality	238
About color adjustments	238
Automatic color mismatch correction	239
Create a trapping preset	240
Perform a manual shading correction	242
Adjust CMYK curves for a job	244
Adjust CMYK curves for a media family	246
Correct the color tones with the ACCT function	248
Register the custom media for automatic gradation adjustment	250
Fix \	252
Create media families and output profiles	253
Create a media family	253
Create output profiles with the embedded profiler	254
Create G7 calibration curves with an external tool	256
Create G7 output profiles with the embedded profiler	257
Chapter 12 References	259
Job settings	260
Copy job settings	260
Scan job settings	264
Print job settings	266
Output settings, values and icons	270
Zoom function	274
Feed direction	275
Feed direction for stapling	275
Feed direction for punching	280
Feed direction for folding	281
Feed direction for the inserter	283
Feed instruction for envelopes	285
Feed instruction for tab paper	287
Status indicators	288
Job status indicators	288
Paper tray indicators	289
Media indicators	290
More PRISMAsync color information	291
System specifications	293
Overview of licenses	293
Print system specifications	294
Paper input specifications	296
Finishing and delivery specifications	300
Remote monitor specifications	314
Media specifications	315
Supported media types per paper input option	315
Supported media sizes per paper input option	317
Supported envelope types per paper input option	318
Settings Editor	319
Settings Editor specifications	319
Settings Editor settings and information	320