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HP DesignJet T770 Series - Page 6

HP DesignJet T770 Series
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13 Maintaining the printer ............................................................................................................................. 123
Check printer status ......................................................................................................................... 124
Clean the exterior of the printer ........................................................................................................ 124
Maintain the ink cartridges ............................................................................................................... 124
Move or store the printer .................................................................................................................. 124
Update the firmware ......................................................................................................................... 125
Update the software ......................................................................................................................... 126
Printer maintenance kits ................................................................................................................... 126
Secure Disk Erase ............................................................................................................................ 126
14 Accessories ............................................................................................................................................... 128
How to order supplies and accessories ............................................................................................ 129
Introduction to the accessories ......................................................................................................... 133
15 Troubleshooting paper issues ................................................................................................................. 135
The paper cannot be loaded successfully ........................................................................................ 136
The paper type is not in the driver .................................................................................................... 137
The printer printed on the wrong paper type .................................................................................... 139
An “on hold for paper” message (T1200 series only) ....................................................................... 139
The roll paper will not advance ......................................................................................................... 140
The paper has jammed .................................................................................................................... 141
A strip stays on the output tray and generates jams ........................................................................ 143
The printer displays out of paper when paper is available ............................................................... 144
Prints do not fall neatly into the basket ............................................................................................. 144
The sheet stays in the printer when the print has been completed .................................................. 144
The paper is cut when the print has been completed ....................................................................... 144
The cutter does not cut well ............................................................................................................. 144
The roll is loose on the spindle ......................................................................................................... 144
Recalibrate the paper advance ........................................................................................................ 145
16 Troubleshooting print-quality issues ...................................................................................................... 147
General advice ................................................................................................................................. 148
Print quality troubleshooting wizard .................................................................................................. 148
Horizontal lines across the image (banding) .................................................................................... 149
Lines are too thick, too thin or missing ............................................................................................. 150
Lines appear stepped or jagged ....................................................................................................... 150
Lines print double or in the wrong colors .......................................................................................... 151
Lines are discontinuous .................................................................................................................... 152
Lines are blurred .............................................................................................................................. 152
Line lengths are inaccurate .............................................................................................................. 153
The whole image is blurry or grainy ................................................................................................. 153
The paper is not flat .......................................................................................................................... 154
The print is scuffed or scratched ...................................................................................................... 154
Ink marks on the paper ..................................................................................................................... 155
Black ink comes off when you touch the print .................................................................................. 156
Edges of objects are stepped or not sharp ....................................................................................... 156
vi ENWW

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