unknownasked Sep 11, 2000 at 7:39am
Streaking toner on HP 4
Steps to follow to solve Streaking toner on HP Laserjet 4 Printer
Steps 1: Ensure your firmware is up to date.
Step 2: Go to the Software and Drivers Download page at HP.com and install the latest available firmware for the printer.
Step 3: Next, ensure that the toner collection unit isn't full
Step 4: Finally, print a cleaning page from the control panel of the Printer.