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5.0
MAINTENANCE
5.1 LUBRICATION AND CLEANING
5.1.1 Lubrication
There are no lubrication points in the printer. All parts are either permanently lubricated or are designed to
operate dry. No lubricants should be used. They may adversely affect operation.
5.1.2 Document Feed Roller Cleaning
1. Remove the cabinet lid.
2. Moisten a lint-free cloth with isopropyl alcohol and wipe the front rollers while rotating the gear on the end of
the roller shaft.
Do not use any strong solvents in place of alcohol.
3. In similar fashion, clean the rear rollers. Make sure all rollers are dry and free of residue.
5.1.3 Document Sensor Cleaning
Clear document sensor light paths of paper dust and other obstructions if rollers continue to run
when no document is present.
1. Insert the flexible nozzle tube of a compressed air can under the input guide and near each of
the document sensors (2 sensors on printers without auto alignment, 3 sensors on auto
alignment printers). Clear each sensor area with a 5 second burst of air.
5.1.4 Printhead Cleaning
Perform when printwires stick or print quality becomes intermittent. Be sure to check the ribbon
first! All necessary tools are included in the 73297-1 Printer Cleaning Kit.
Document Sensors
Sensor Holes
Input Guide
Upper
Roller
Document
Sensor
Sensor Hole
Input Guide
DP6 & DP7 without Automatic Alignment
DP7 with Automatic Alignment
Back sensor
Skew sensor