The chip clearing method for HP 178nw printer is as follows:
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1. Turn off the printer and power it off. Wait a few minutes before turning it on.
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2. Locate the \"Settings\" menu on the printer's control panel and select \"Chip Info\".
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3. On the chip information page, locate the chip that you want to clear and select Clear.
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4. In the confirmation dialog box, select Yes and wait for some time until the clearing succeeds.
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5. Restart the printer, go to the Chip Info page again, and confirm that the chip has been cleared and can continue to use.
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It should be noted that before clearing the chip, please ensure that you have a spare toner cartridge or can replace the toner cartridge in time, so as not to affect the normal printing use. At the same time, the cleaning chip may shorten the working life of the toner cartridge, so it is necessary to operate carefully according to the actual situation.
Step 1: First put the printer into maintenance mode 1, make sure the printer power switch is off, first press the \"cancel\/stop\" key, and then press the \"power switch\" key.
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Don't let go of either button.
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2. When the power light is green, do not release the [power switch] button at the same time, release the [Cancel\/Stop] button, and then press the [Cancel\/Stop] button five times, and then release the [power switch] [Cancel\/stop] button at the same time.
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Each time you press the [Cancel\/Stop] button, the warning light and the power light flash alternately.
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3, when the power indicator light is green, the printer is ready for maintenance mode operation.
HP printer chip zeroing methods are: download the printer zeroing software, click the two buttons circled in the software below, let the printer enter repair mode, and so on.
1. In the shutdown state, press and hold down the \"Stop\/reset\" button, and then press \"Power\" to power on. 2. Keep the \"Power\" button tight, release the \"Stop\/Reset\" button, and press the \"Stop\/Reset\" button twice to enter maintenance mode.
3. Wait until the printer stops and the LCD displays \"0\