HP DesignJet T730 User guide - Page 157

If the problem persists, proceed to analyze areas I and J of the diagnostic plot across modules =

Page 157 highlights

Actions 1. Look at the original and check whether it is dirty, has fingerprints on it, or has grain already present in the print. If not, then proceed to step 2. 2. If it is a copy, repeat it, setting the content type to Image. 3. If the problem persists: ● If the problem appears when copying, use Best quality. We also recommend using coated or glossy paper in order to avoid grain in copies. ● If the problem appears in a scanned file, scan at a lower resolution (300 dpi or lower resolution). 4. If the problem persists, clean and calibrate the scanner as indicated in Clean the scanner scanbars on page 109 and Calibrate the scanner on page 111. Check that the maintenance sheet is also clean, and that it is not damaged before calibrating the scanner (an old or damaged maintenance sheet may cause this problem); if it is damaged, reprint it as explained in Calibrate the scanner (see Calibrate the scanner on page 111). 5. If the problem persists, proceed to analyze areas I and J of the diagnostic plot across modules =, 1 and 3. In the three examples below, the top example is ideal, the middle example can be regarded as acceptable; but, if you see something similar to the bottom example (or worse), call HP support and report "grain in area fills". ENWW Grain in area fills when scanning plain paper 153

  • 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
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203

Actions
1.
Look at the original and check whether it is dirty, has fingerprints on it, or has grain already present in the
print. If not, then proceed to step 2.
2.
If it is a copy, repeat it, setting the content type to
Image
.
3.
If the problem persists:
If the problem appears when copying, use Best quality. We also recommend using coated or glossy
paper in order to avoid grain in copies.
If the problem appears in a scanned file, scan at a lower resolution (300 dpi or lower resolution).
4.
If the problem persists, clean and calibrate the scanner as indicated in
Clean the scanner scanbars
on page
109
and
Calibrate the scanner
on page
111
. Check that the maintenance sheet is also clean, and
that it is not damaged before calibrating the scanner (an old or damaged maintenance sheet may cause
this problem); if it is damaged, reprint it as explained in Calibrate the scanner (see
Calibrate the scanner
on page
111
).
5.
If the problem persists, proceed to analyze areas I and J of the diagnostic plot across modules =, 1 and 3. In
the three examples below, the top example is ideal, the middle example can be regarded as acceptable;
but, if you see something similar to the bottom example (or worse), call HP support and report “grain in
area fills”.
ENWW
Grain in area fills when scanning plain paper
153