Printhead-To-Drum Spacing Adjustment; Figure 9-7 Printhead To Drum Gap Adjustment Menu - Tektronix Phaser 340 Service Manual

Printhead-to-drum spacing adjustment

Tool required
Printhead-to-drum gap tool
9/64 in. hex tip
T-20 TORX tip
This procedure assures that the printhead is the proper distance from the drum.
Make this adjustment after removing or replacing the printhead. If you cannot
use the PC diagnostics to assist with this procedure (due to security restrictions
at the customer site), then do the following: During the procedure allow the
printhead to power up to its Ready state and then open the printhead to stop all
motor motion (the printhead will start to cool), quickly continue the procedure
at Step 4. When you finish the adjustment, close the front door, allow the
printhead to warm up and then check the adjustment.
1. Remove the top cover as described in the Chapter 8 topic "Cabinet
panels and covers" on page 8-4. Remove the metal dust cover as
described in the Chapter 8 topic "Metal dust cover" on page 8-8.
2.
Start the PC diagnostics program. Refer to "PC-based diagnostics" on
page 6-27. Activate the diagnostic's Printhead to Drum Gap
Adjustment(Hot) routine. The routine should automatically center
the printhead to the drum. Following this, the routine regulates the
printhead and drum temperature to their Ready state temperatures.
Version 2 printers (serial-numbered printers BCxxxxx and up) feature a front
panel menu item, "Head-To-Drum Adjust," that accomplishes the same
functions.
3.
When the printer is ready, press Enter to stop the drum and begin the
gap adjustment.

Figure 9-7 Printhead to drum gap adjustment menu

Checks and Adjustments
Small (3/16 in.) flat-blade screwdriver
Magnetic screwdriver
PC diagnostic software
Service Manual
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