Paper Preheater Cleaning; Pick Roller Cleaning - Tektronix Phaser 380 Service Manual

5
Theory of Operation

Paper preheater cleaning

Pick roller cleaning

5-36 Phaser 380 Color Printer
This is a customer-initiated cleaning procedure, selected through the front panel
cleaning menu Clean: Ink Smears. The purpose of this cleaning item is to
clean ink out of the paper pre-heater that may have been deposited there.
There are two separate preheater cleaning operations: Quick and Extended.
Each is selected from the front panel
1.
The customer selects Clean from the Clean: Ink Smears menu
item. The customer then presses Clean.
2. The customer then selects either Quick or Extended from the
Clean: Ink Smears sub-menu.
If Quick is selected, then the printer sequentially picks and passes five sheets of
paper through the paper path. Each sheet removes ink from the paper preheater.
The front panel returns to the Clean menu.
If Extended is selected, the following takes place:
1. The front panel indicates that the cleaning operation will take 20
minutes, giving the user a chance to continue or cancel.
2.
If continued, the printer heats the paper preheater to 110
ink trapped inside the paper preheater. Ordinarily the paper
preheater runs at temperatures of between 60 and 75
transparency film printing.
3. The printer picks and passes 10 sheets of paper through the print path.
Each sheet absorbs and removes ink from the paper preheater.
4.
The printer returns to the Clean menu after a ten minute cool-down
period.
This is a customer-initiated cleaning procedure, selected through the front panel
cleaning menu Clean: Media Tray Jams. The purpose of this cleaning item
is to clean the pick pollers. This procedure requires the pick roller cleaning tray.
In the pick roller cleaning cycle, these events take place:
1.
The customer starts the Clean: Media Tray Jams menu item.
2. The front panel prompts the customer to install the cleaning tray in
the paper tray. (The user must remove all media from the paper tray
and also soak the cleaning tray's scrubber with alcohol.)
3.
The customer starts the cleaning cycle; the printer responds by
rotating the pick rollers eight times.
o
C, softening
o
C for paper or