Numerical Parts List

Sensor Mount (Rear of Controller Pan) Table Transfer Roller Bushing Cover (right) Right Auxiliary Cover, 500-sheet Feeder Left Auxiliary Cover, 500-sheet Feeder Table 8 Tray Sensor Assembly, 500-sheet Feeder Paper Pickup Roller Assembly (Tray 2) Table Cable, Display, Accessory Power, Photo Sensor Feeder Controller PCA Assembly, 500-sheet Feeder Upper Contact Cable, 500-sheet Feeder Cable, Ribbon, from Paper PCA to Controller Tray 1 and 2 Pickup Shaft Left Bushing Screw, Long DC Controller...

Locations of Components

T654 Tray Wire Schematics

Transmission data input signal Transmission data output signal Optional unit selection signal Duplexing unit deflector drive solenoid J1755 J1754 J1753 J1704 -1 _ -2 -P12_ -R12 -7 Transmission data input signal Transmission data output signal Optional unit selection signal SBUSNSR Reversing unit connection check signal Side registration guide drive motor drive signal DXSLD Paper enters the duplexing unit when H.

Item ValuesExplanation

Set the default number of copies by selecting any number from 1 to 999. Press -Value+ once to change the setting by increments of 1, or hold down -Value+ to scroll by increments of 10. Note It is best to set the number of copies from the printer driver or software application. (Driver and software settings override Control Panel settings.) Set the default image size for paper and envelopes. (The item name will change from paper to envelope as you scroll through the available sizes.) Note The...

Setting the Page Count Maintenance Count and Serial Number

The page count and serial numbers are stored in Non-Volatile Memory. If it is necessary to replace the Formatter PCA, the page count should be set to the current value to reflect the age of the print engine. The procedure for setting the serial number is similar to setting the page count. Note Before replacing the Formatter PCA, print a Configuration Page to verify the current page count and serial number of the printer, if possible. Use the information on the Configuration Page to reset the...

Sensors and Signals

M775 Toner Sensor

The drawing below shows key components, sensors, and switches that control the operation of the printer. The table on page 7-90 shows the name of each sensor, as well as the signal name and its destination or source. Figure 7-17 Paper Path and Components Figure 7-17 Paper Path and Components CL405 Registration roller clutch PS302 Tray 1 paper width sensor PS307 Face-down tray paper full sensor PS403 Registration roller paper sensor PS1307 Fuser delivery paper sensor PS1601 250-sheet feeder...

Printer Messages

The following table explains messages that might display on the printer's Control Panel. Alphabetical printer messages and their meanings are listed in Table 7-5, and numerical printer messages are listed in Table 7-6. Hint If the message persists requesting that you load a tray, or if a message indicates that a previous print job is still in the printer's memory, press GO to print or press Cancel Job to clear the job from the printer's memory. Note Not all messages are described (many are...

Accessories and Supplies

The following items are available through your local authorized HP dealer. To find a dealer near you, call the HP Customer Information Center (800) 752-0900. Note See page 2-4 for documentation product numbers. Duplex Printing Accessory (duplexer) EDO Dual In-line Memory Module (DIMM) 4 MB 8 MB 16 MB C4140-67901 C4141-67901 C4142-67901 C4143-67901 Font DIMM (8 MB Asian MROM) Traditional Chinese Simplified Chinese 9-9 pin serial cable (male female) 9-25 pin serial cable (male female) Enhanced I...

Card Stock and Heavy Paper

Many types of card stock can be printed from Tray 1, including index cards and postcards. Some card stock performs better than others because its construction is better suited for feeding through a laser printer. For optimum printer performance, do not use paper heavier than 53 lb 199 g m2 in Tray 1 or 28 lb 105 g m2 in other trays. Paper that is too heavy might cause misfeeds, stacking problems, paper jams, poor toner fusing, poor print quality, or excessive mechanical wear. Note Printing on...