ColorQube 8570 and 8870 Service Orientation

Page 1

ColorQube 8570/8870

Service Orientation

Page 2 Service Orientation

ColorQube 8570 and 8870Competitive price/page on CQ8570. Color for the price of mono with CQ8870 at 1.7 cent page.

25% faster

40-

30-

20-

6- no apology

First Print Out Time improved to 4 seconds vs. 5 seconds on P8560

Fast time to ready: From cold (12 minutes); from Standby (30 seconds)

40% less power in TEC consumption than P8560

More reliable design changes based on previous product service history and fault insertionNew side frame

Process drive mounting structuresAssembly guide/support for process driveHarness restraints

New drum maintenance (DM) camsJam rates much, much improved over P8560


FRUs and Part Number changes

About 70 new FRUs

Electronic module circuit boards (main board, power control board, and power supply) can be individually serviced and replaced.

Main board, power control board, and power supply are all new designs. Some power supply generation is done on the power control board. Allows flexibility in making power supply changes very difficult to changes and recertify power supply since it is a safety control device.

SATA hard drive. Simpler data interface.

Much more complicated ink loader. Ink stick sensing, ink stick solenoid

Jetstack heater fuse block included on printhead to comply with safety regulations in 240 VAC environment.

New drum heater.

New paper preheater

Foam roller drum maintenance unit

Regionalized ink sticks

The ink loader features optical

sensing which lets it allow or

disallow the insertion of each

regionally-unique ink stick.

Push-pull solenoid lowers/raises gate

to allow stick to slide down loader

Low-energy ink same as 8860

Optically detected notches

UP token 275 thru 277 track ink sticks loaded (not consumed).

All printers are born Neutral. First regionalized stick set region.

Token 275 Region (NA, XE, DMO, Metered, Metered NA, Metered XE, Metered DMO)

Token 276 - Neutral Stick loaded count

Token 277 Regional Stick loaded count

Token 114 tracks ink sticks consumed

3 Factory Stick limit. Installing new printhead reduces factory stick count by one for each color. Factory sticks

D C B


Ink level gas gaugesThe printer detects the level of ink sticks in the ink loader and provides "gas" gauges on the control panel.

Resistive sliders. 10% increments detected and displayed on control panel and CWIS

Used to correlate loaded ink sticks. If ink levels in loader change (increase) while printer is turned off the printer will instruct user to remove ink stick.

Ink stick gatesFour push-pull solenoids raise/lower gates to allow an ink stick to slide down loader based on reading from ink stick SKU sensors


New printhead lock system

Printhead Wiper no longer used to lock printhead in the tilted back position. The tilt gear and release latch are used instead.

Tilt gear locks printhead in two positions print (tilted forward) and park (tilted back)

Printhead Wiper only used for wiping during clean cycle

Printhead locked for shipping with release latch/tilt cam gear (tilted back) and printhead pin engaging hole in right printhead restraint

Printhead homing procedure changed

Lift release latch for entire duration of DM cam rotation while tilting head

-back position, only noted as a soft fault


Forward Imaging new drum oiling technique

The drum oiling technique has changed. The DMU oils the drum in same rotational direction as printhead imaging

Drum maintenance system uses three cams instead of two on same shaft

Two cams tilt drum maintenance unit

Once cam tilts the wiper blade

Pivot plate is comprised of two independently movable parts; one for drum oiling, one for oil wiping (metering).

Metal DM pivot plate with laterally-oriented data connector. Eliminates loss of electrical connection during DMU movement

DMU does not contain the wiper blade.

pivot plate. Oil from drum wipe washes blade.

DMU uses a foam roller (softer), not web-wrap


New Drum Heater

Twin heater coils on glass tubes

Drum Relay Board eliminated

Drum fuse is located in drum assembly -- no longer on paper preheater.


New Paper Preheater

No circuit board

Clutch-less deskew. No reversing of deskew roller to create paper buckle. Uses overload spring plate to stall leading edge of paper for deskewing.

Wiring harnesses are more troublesome to connect/disconnect


Improved Process Drive Mounting

More plastic structure to hold mounting screws at the mounting post base. (The equivalent of the nut plates). Process drive uses long mounting screws.

Guide/brace near upper end of process drive. Assists installation so top gear properly meshes transfix cam gear. Also braces the process drive against lateral movement.


New Drum Maintenance Camshaft and camsDrum maintenance camshaft features new 3rd cam to actuate the drum wiper blade

New DM cams are more flexible. A disconnect between the shaft hub and the cam face allows the hub to be more compliant and not develop a stress point

Old DM cam was more rigid because of the solid material connection between the hub and cam face. This did not allow the hub to comply with the shaft


Modified print modes

To prevent motor damage or to improve print quality the printer may pause printing or slow down some aspect of the print process.

CPP -- cold print process. Improves FPOT. Prints before drum is fully up to operating temperature.

YAS -- Y-axis slowdown. Triggered by Y-axis following error. Slows printing to keep media drive motor from overheating. YAS slows regular media to 6.4 ppm. Slows to 3 ppm for envelopes and heavy media. Only long print jobs will be affected.

HCT -- high-coverage transfix. Slows transfix to help prevent a drum stall on Enhanced mode prints.

DDM -- duplex dropout mitigation. Slows transfix on 2nd-side page to prevent dropout in fine lines.

HFB -- high-frequency banding. Slows transfix on to prevent banding in certain halftones on Enhanced mode prints.

Token 278 lists the number of prints made using each modified print mode


Wire routing and connectors

Wire harness routing is different from the preceding printer.

Drum and preheater AC harnesses are routed above drum fan away from DC harness and control lines.

Ink loader data lines connect to e-can

In addition, the control panel connects to the I/O board with a lockingzero insertion force (ZIF) connector.

Printhead data cable (white ribbon cable) features a restraint to secure it away from thermal caps

ZIF connector tool for printhead data cable


EnergyStar TEC compliant

The printer uses 40% less power than its processor.

The power supply sleep behavior has changed.

Printer is shipped in Power Saving configuration vs. Productivity configuration. In its default state the printer trades a longer warm-up time before printing for lower overall energy consumption.

In its default configuration (lowest energy consumption):

Fast Resume: Off

Wake when: Job activated

Enters Standby mode following 2 minutes of inactivity.

Enters Power Saver mode after 30 minutes of inactivity.

When Fast Resume is turned on:

Fast Resume: On

Enters Standby mode following 1 hour of inactivity.

Enters Power Saver mode after 2 hours of inactivity.

Unused power supplies are deactivated immediately if not needed. 50v power supply LED (red LED on power control board) turns off even in Ready state.

Sleep/Wake control panel button behavior:

On -- OK to put to sleep

Pulsing -- in EnergyStar mode

Off -- Busy and unable to be put to sleep at this time


Thermal caps on printheadSignificantly reduces heat losses from printhead.

Transition into working position when printhead tilts back to park.

Printer can operate without them, just uses more power.


Chevron paper path

Reduces smudging

Pre-deskew sensor

Improves paper path timing

Slightly complicates removing/installing simplex paper guide


New error code scheme

New error code numbering scheme to align error codes with new Xerox ColorQube (Jupiter) products.

Center Image function

In Hidden Tools menu.

May clip slightly on right edge of print, particularly if jet substitution enabled.

Increments in 0.1 mm


Updated Interactive Diagnostics

New built in AC Power Monitor test in idiags > Monitors > Line Voltage

Samples at 2x AC cycle frequency rate -- 120 times/sec for 60 Hz grid to coincide with AC waveform peaks/valleys.

Shows current reading

Max and Min reading

Control panel activation of Manufacturing Mode

No need for dongle or 2-pin jumper

Hold CANCEL and UP while turning on printer, release after XEROX walks across screen. Printer will boot into Manufacturing Mode 1 (no POST or PEST, thermals on). Control panel will be black/white reversed.

Allows for flashing firmware while in error state with non-printing FW flash file

Documents

ColorQube 8570 and 8870 Service Orientation